€679.00
The 19" Control Center for Data Centers and Critical Infrastructure
The Didactum Monitoring System 500T is a sophisticated, field-proven 19" 1U monitoring solution for data centers, server rooms, and other business-critical environments. As a self-contained device with no moving parts such as fans or hard drives, it continuously captures critical environmental parameters – from temperature, humidity, and voltage to smoke, dust, and vibration, as well as water ingress and unauthorized access – and issues real-time alerts long before they turn into a costly outage.
New: The Monitoring System 500T now uses Gigabit Ethernet (10/100/1000 Mbit/s), making it perfectly suited for deployment in modern, high-performance data center networks. As an I/O controller, its 16 potential-free inputs and 4 relay outputs also allow you to centrally control doors, fans, generators, UPS systems, and circuit breakers.
With support for up to 130 sensors, 1,000 freely configurable system elements, factory-selectable redundant power supply, and a CAN bus for expansion units, the 500T grows alongside your requirements. Optionally, it can be retrofitted with an expansion module (OSDPv2 reader or Modbus/RTU), an LTE modem for independent remote monitoring, and a battery backup reservation.
Comprehensive Data Center and Environmental Monitoring
The 500T reliably captures all critical factors in server rooms, data centers, and technical facilities in real time.
Temperature & Humidity
Protects against overheating and condensation in racks and server rooms.
Power & UPS Systems
Ensures continuous availability of the power supply.
Smoke, Dust & Leakage
Early warning for fire, fine particulates, or water damage.
Airflow & Vibration
Early detection of disturbances in cooling and the surrounding environment.
Access Control
Secures server cabinets and technical rooms against unauthorized access.
Comprehensive Sensor Integration for IT Security
The 500T supports up to 130 sensors, contacts, and relays simultaneously – risks are detected and reported automatically.
Temperature & Humidity Sensors
Precise measurement for server rooms and IT racks.
Vibration Sensors
Detect impacts or tampering on racks and doors.
Magnetic Contact & Motion Sensors
Reliably monitor doors and windows.
Leak & Water Sensors
Early warning for flooding and condensation.
Smoke & Dust Particle Sensors
Early detection of fire risks and particulate contamination.
Power & Voltage Sensors
Monitoring of UPS systems, mains voltage, and consumption.
Eight analog RJ12 sensor ports are available directly on the device, automatically detected via AutoSense. Via the CAN bus, this number can be expanded to up to 64 sensors – ideal for data centers, large server rooms, and network distribution rooms with growing sensor requirements.
Real-Time Monitoring and Automated Alerting
The 500T responds immediately to critical values. When threshold values are exceeded, the system automatically sends email notifications, SMS, Web-to-SMS, PUSH messages, or SNMP traps, or triggers a siren. In the event of a network outage, the device can even communicate via the mobile network and receive commands by SMS. Integration into monitoring software such as Zabbix, PRTG, or Nagios is straightforward thanks to standard network protocols (HTTP, HTTPS, SMTP, FTP, SNMP, Syslog, DHCP, Modbus TCP/IP).
Example in practice: A temperature sensor in the server cabinet reports a rise because a fan has failed. The 500T automatically activates the backup fan via a relay, sends an email and SMS to the IT staff responsible, and informs the central monitoring system via an SNMP trap – preventing overheating damage at an early stage.
Web-Based Control & Intelligent Automation
The intuitive web interface allows simple management of sensors, alarms, and scenarios.
- Temperature > 28 °C AND humidity < 30% → activate fan, start air conditioning, send email
- Door opened → send SMS to administrator
- Water ingress → activate pump, trigger siren, send email notification
- Power outage → start backup generator, notify the control center
The 500T can be used as an I/O controller for air conditioning units, UPS systems, generators, lighting, doors, or fans – ideal for data center management, building automation, and preventive maintenance.
Full Control
Monitor devices, turn sensor data into actionable insights, and configure integrations – all through an intuitive, web-based interface.
- Monitor real-time data from all connected sensors and devices
- Create automated actions based on defined conditions
- Send email, Telegram, HTTP request, SNMP, or other notifications
- Visualize trends and logs for better decision-making
- Securely manage users, permissions, and access
Scalable, Reliable, and Future-Proof
The system supports up to 1,000 elements (notifications, triggers, timers, logic schemes) and can be easily expanded. Via the CAN bus, multiple expansion units can be operated in a chain, with a maximum distance of up to 225 m from the device. Regular firmware updates ensure long-term usability. Made in the EU – with German support included.
Connecting CAN Sensors
Via the CAN bus, multiple CAN devices can be linked together in a chain. Each 8-port sensor expansion unit adds 8 additional analog sensors to the system. Each dry-contact expansion unit adds 32 or 64 additional dry-contact inputs. An additional CAN power supply (12V/1A) is only required if the number of CAN devices in the chain exceeds 12.
Individually Configurable: Expansion Module, Modem & Power Supply
The Monitoring System 500T can already be precisely tailored to your requirements during the ordering process.
Please note: The options listed below are not automatically included in the scope of delivery. They must be additionally and separately selected above the cart button ("Select expansion module", "Select modem", and "Select power supply") in order for the desired module, modem, or power supply variant to be included and installed in the device.
Expansion Module
Expansion Module for OSDPv2 Reader
Enables connection of OSDPv2-capable card readers for access control directly to the device.
Expansion Module for Modbus/RTU
Integrates Modbus/RTU-capable devices and sensors into the Monitoring System 500T.
No Expansion Module
Default selection if no OSDPv2 or Modbus/RTU module is required. Note: only one of the two modules can be installed in the device at a time.
Modem
LTE Modem
Enables independent remote connectivity and alerting via mobile network (including SMS and Web-to-SMS), even without a fixed IP network. Fits into the dedicated modem slot.
No Modem
Default selection if the device is to be operated exclusively via Ethernet.
Power Supply
The 500T is available in five power supply variants. For the redundant variants, the device automatically switches to the line with the highest applied voltage, so that the failure of one line does not interrupt operation.
230V AC
A single power input for simple operation from the mains supply.
230V AC (Redundant)
Two independent 230V AC power inputs for redundant power supply.
24V – 48V DC
A single DC input for operation on DC voltage networks, e.g. in telecommunications facilities.
230V AC + 24V – 48V DC
Hybrid variant with one AC and one DC input for maximum redundancy across different power sources.
24V – 48V DC (Redundant)
Two independent DC inputs for redundant DC power supply.
In addition, all variants can optionally be retrofitted with a battery backup reservation, which temporarily keeps the device powered in the event of a complete failure of all power inputs.
Building Monitoring, Video & Physical Security
In addition, the 500T protects buildings and technical rooms from unauthorized access and sabotage.
- Glass break sensors detect broken windows
- Motion detectors secure technical rooms
- Door contacts report unauthorized access
- Up to 4 IP cameras or one USB camera for visual monitoring
- OSDPv2 card reader for access control (optional expansion module)
All sensor and alarm data is also logged with timestamps, supporting companies with ISO 27001, GDPR, or industry-specific audits.
Commissioning in Just a Few Minutes
Setup is quick and easy – no additional software required.
- Mount the device in the 19" rack and connect it via Ethernet cable to your Gigabit-capable network (10/100/1000 Mbit/s)
- Connect the appropriate power supply according to the ordered variant – the system starts automatically
- Open the device's default IP address, as stated in the quick start guide, in your browser
- Complete the setup wizard for network settings, admin password, and time zone
- Connect sensors to the analog ports – they are detected automatically (AutoSense)
- Optional: install the expansion module (OSDPv2/Modbus RTU), LTE modem, or battery backup reservation and configure it in the web interface
- Optional: configure alarm rules and advanced settings
What's Included in the Scope of Delivery
Please check the scope of delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately. Additionally ordered options (expansion module, modem, battery backup reservation) are not included here and are supplied separately.
- Didactum 500T monitoring unit1 piece
- OTG USB-C cable1 piece
- UTP Ethernet cable, 3 m1 piece
- Micro-USB-C OTG adapter cable1 piece
- 19" rack mounting brackets2 pieces
- M3 × 8 mm Phillips flat-head screws6 pieces
- Terminal block, 6-pin, 5.08 mm1 piece
- Terminal block, 3-pin, 3.81 mm1 piece
- Terminal block, 6-pin, 3.5 mm4 pieces
- Connector plug, 2-pin, 3.81 mm15 pieces
- Self-adhesive rubber feet4 pieces
- Quick start guide1 piece
Why the 500T Is the Right Choice
Gigabit Ethernet
10/100/1000 Mbit/s for high-performance data center networks.
Built for the 19" Rack
Solid 1U metal housing with no fans or moving parts.
Up to 130 Sensors
Temperature, humidity, smoke, dust, leakage, vibration, power, access.
Real-Time Alerting
Via email, SMS, SNMP trap, syslog, Web-to-SMS, or PUSH.
I/O Controller
16 potential-free inputs, 4 relays for UPS, HVAC, access, and lighting.
Scalable
Up to 1,000 elements – notifications, triggers, logic schemes.
5 Power Supply Variants
230V AC, 24–48V DC, or hybrid, each also available redundant.
Expansion Modules & LTE
Optional integration of OSDPv2 reader, Modbus/RTU, and LTE modem.
Made in the EU
German support included, regular firmware updates.
Practical Application Examples
- Temperature, humidity, and leak monitoring under raised floors in data centers
- UPS and power monitoring with automatic switchover to redundant power supply
- I/O control of air conditioning units, fans, backup generators, and circuit breakers
- Access and security monitoring of server cabinets and technical rooms
- Early smoke and gas detection in data centers and laboratories
- Integration of Modbus/RTU devices into existing automation environments
- Telecommunications sites and unmanned remote stations with LTE remote access
- Video surveillance via USB or IP camera in combination with sensor alarms
The Didactum Monitoring System 500T combines IP-based monitoring, environmental monitoring, and building security in a scalable 19" platform – for early hazard detection, fewer outages, and maximum system availability.
More About the Didactum 500T
Device Detail Page & Tutorial
Overview of the device, power supply variants, and all connections explained in detail.
Go to Detail Page →Firmware & Updates
Current firmware versions as well as instructions for updating and recovery.
Go to Firmware Page →Live Demo
Try out the web interface of the Didactum monitoring system online, with no obligation.
Go to Demo →Frequently Asked Questions
What is the Didactum Monitoring System 500T and what is it used for?
The Didactum Monitoring System 500T is a self-contained 19" 1U monitoring and control unit for data centers, server rooms, and critical infrastructure. It monitors environmental parameters such as temperature, humidity, voltage, leakage, smoke, and airflow, while also functioning as an I/O controller for controlling doors, fans, generators, UPS systems, and circuit breakers – entirely without an external server or additional software.
What network connectivity does the 500T offer?
The Monitoring System 500T now features a Gigabit-capable Ethernet connection with 10/100/1000 Mbit/s. This allows the device to be integrated into modern, high-performance data center networks without limitations.
What power supply variants are available, and how do they differ?
The 500T is available in five variants: 230V AC, 230V AC (Redundant), 24V–48V DC, 230V AC + 24V–48V DC, and 24V–48V DC (Redundant). For the redundant and hybrid variants, the device automatically switches to the line with the highest applied voltage, so that the failure of one line does not interrupt operation. Additionally, all variants can optionally be retrofitted with a battery backup reservation.
What sensors can be connected to the system?
The Monitoring System 500T has 8 analog RJ12 sensor ports directly on the device, as well as 16 potential-free inputs, and can be extended via the CAN bus with additional CAN expansion units, allowing up to 64 analog sensors to be monitored simultaneously. Supported sensors include temperature, humidity, smoke, dust, water, vibration, door, and voltage sensors, among others. In total, up to 130 physical sensors, contacts, and relays can be managed simultaneously.
What are the expansion module and the modem, and are they included in the price?
No. The expansion module (OSDPv2 reader or Modbus/RTU), the optional LTE modem, and the desired power supply variant are not automatic components of the scope of delivery. All three options must be explicitly selected during the ordering process above the cart button under "Select expansion module", "Select modem", and "Select power supply", respectively, in order to be included and installed in the device. Only one of the two expansion modules (OSDPv2 or Modbus/RTU) can be installed in the device at a time.
How are alerts and notifications sent?
The system offers various alerting methods: email notifications to up to 20 recipients, SMS or Web-to-SMS (optionally via LTE modem), SNMP traps for network management systems, syslog messages, FTP transfer, and PUSH notifications. In the event of a network outage, the 500T can communicate via the mobile network and even receive commands by SMS, for example to switch a relay or restart the system.
Can the system be integrated into existing IT infrastructures?
Yes. The system supports SNMP v1/v2c/v3, Modbus TCP/IP, and via expansion modules, Modbus RTU and OSDPv2, and can be integrated into common monitoring platforms such as Nagios, PRTG, Zabbix, or Check_MK. It connects via Gigabit Ethernet and can be managed both through the web interface and via network management tools.
How does initial connection and commissioning of the system work?
Mount the device in the 19" rack, connect it to your network via Gigabit Ethernet, and connect the appropriate power supply according to the ordered variant. The system starts automatically and can be accessed via the default IP address stated in the quick start guide using a web browser. The setup wizard guides you through the basic configuration (network settings, admin password, time zone). Sensors are detected automatically as soon as they are connected to the analog ports. The "Didactum Manager" helps with advanced configuration and setting up alarm rules.
Can the system be expanded if I need more sensors?
Yes. CAN expansion units can significantly increase the number of sensors: each 8-port expansion unit adds 8 additional analog sensors, and each dry-contact expansion unit adds 32 or 64 additional dry-contact inputs. The maximum distance of the CAN devices from the device is up to 225 m. An additional CAN power supply is only needed once more than 12 CAN devices are operated in the chain.
What do the expansion slot and battery slot do?
The expansion slot accommodates either a Modbus/RTU or an OSDPv2 reader expansion module. The separate battery expansion slot accommodates the optional battery backup reservation, which temporarily keeps the device powered in the event of a complete failure of all power inputs. Both options are available separately and are not part of the standard scope of delivery.
Questions About the 500T?
Our support team in Germany will be happy to advise you free of charge on choosing the right variant, options, setup, and sensors.
Datasheet 1
Device Management:
- Device Management: Web, SNMP
- Sensor Access: Three-level via login
Interface:
- LAN: Ethernet 100 Mbit
- Operating System: Linux v.6.2
- Interface: Any browser
- Memory (RAM): 128 MB
- CPU Speed: 720 MHz
- Total CPU Cores: 2
- Clock: Built-in clock
- Timer: Built-in watchdog
Sensor Technology and Logic:
- Max. Number of Sensors: 130 (physical sensors, dry contacts, relays)
- Max. Number of Elements: 1000 (notifications, triggers, timers, logic, sensors, etc.)
Network / Protocol Support:
- LTE Gateway Mode: Yes
- LTE Access Mode: Yes
- Network Protocols: DHCP, HTTP, HTTPS, SNMP, SMTP, FTP, Syslog, TLS
- Modbus RTU: With expansion
- Modbus TCP/IP: Yes
- VPN: Secure data transmission: Yes
Power Supply:
- Energy Efficiency (EU Energy Level): Grade A
- Power Input (230V AC): Two inputs
- Power Input (24–48V DC): Two inputs
- Power Input (12V DC): Input
- Min. Power Consumption: 1 W
- Max. Power Consumption: 10 W
Inputs/Outputs:
- Analog Port: 8 built-in ports (6P6C for connecting analog sensors)
- CAN Port: 1 port, max. 32 devices
- Dry Contact Inputs: 16
- Relay Outputs (240V / 10A): 2
- Relay Outputs (12V / 0.25A): 2
Video Support:
- USB Cameras: 1
- IP Cameras: up to 4
Environmental Conditions:
- Operating Temperature: -10 to +70 °C
- Storage Temperature: -25 to +85 °C
- Operating Humidity: 0 to 90% (non-condensing)
Mechanics and Enclosure:
- Installation: 19″ 1U
- Enclosure Material: Sheet steel
- Dimensions (L x W x H): 440 x 44 x 90 mm
- Weight: 1.5 kg
CAN sensors
Matching sensors
Current Measurement via Hall Effect Current Transformer Directly in the Monitoring System The Didactum current transformer transmits the current values measured by a Hall effect current transformer to a Didactum monitoring system. This analog plug-and-play converter is connected to any analog port (A1 to A8) of a Didactum monitoring system or expansion unit and works with Hall effect current transformers with a 0–5V output signal and 12V DC power supply. This article describes both available variants of the current transformer together: the AC variant for AC measurements and the DC variant for DC measurements. Both variants are identical in design, connection, and functionality, but differ in the type of external Hall effect current transformer they work with. The choice between AC and DC is made directly during the ordering process via the variant selection on this product page. Configuration Individually configurable: AC or DC The Didactum current transformer is already tailored during the ordering process to match the type of Hall effect current transformer already in use or planned. ⚠️ Please note: The correct variant must be actively selected above the shopping cart button under “Select variant”. The AC variant works only together with an AC Hall effect current transformer, while the DC variant works only together with a DC Hall effect current transformer. An incorrect combination will not provide correct measurement values. Select variant AC For monitoring AC current meters. Suitable for use with AC Hall effect current transformers for measuring alternating current. DC For monitoring DC current meters. Suitable for use with DC Hall effect current transformers for measuring direct current. Both variants are identical in connection, structure, and function; details can be found in the “Structure” section below. Structure Current transformer connections The current transformer has only a few, clearly separated connections for input, output, and the external current transformer. 1 Input: 3-pin terminal block 2.54 mm pitch. The external Hall effect current transformer is connected here using 3 wires (0–5V signal and 12V DC power supply). 2 Output: RJ11 6P4C Connects the current transformer via RJ11 cable to an analog port (A1 to A8) of the Didactum monitoring system or a VT408 expansion unit. The 12V DC power supply for the external Hall effect current transformer is provided by the Didactum monitoring system via the analog port and passed through by the current transformer to the current transformer sensor. A separate power supply for the current transformer sensor is not required. Required components Matching Hall effect current transformer required The Didactum current transformer cannot be operated on its own. It absolutely requires an external Hall effect current transformer with 0–5V output and 12V DC supply, which performs the actual current measurement on the line. HALL AC current transformer Open AC current transformer for alternating current, available for measurement ranges from 5 to 50 A. AC current transformer AC current transformer for higher alternating currents, available for measurement ranges from 50 to 500 A. DC current transformer DC current transformer for direct current, available for measurement ranges from 50 to 500 A. Alternatively, any other commercially available Hall effect current transformer with a suitable 0–5V output signal and 12V DC supply can also be used. Installation Install current transformer and sensor together The current transformer sensor and Didactum current transformer are installed together. 1 Mount the current transformer sensor Secure the Hall effect current transformer with screws and nuts. The line to be measured is guided through the aperture of the current transformer. 2 Connect to the monitoring system Connect one end of the RJ11 cable to a free analog port (A1 to A8) of the Didactum monitoring system and the other end to the RJ11 port of the current transformer. 3 Wire the current transformer sensor Connect the 3 wires to the Hall effect current transformer according to the wiring diagram using the 3-pin terminal block of the current transformer. ⚠️ Safety instructions: Observe the applicable regulations for installation in the respective country as well as the relevant accident prevention regulations, in addition to internal company work, operating, and safety rules. The specified technical limits, especially the permissible ambient temperature range, must not be exceeded under any circumstances. Also check the maximum insulation voltage of the current transformer sensor and the maximum permissible cable diameter of the line to be measured before installation. Web interface Full control over thresholds, trends, and automation The current transformer integrates seamlessly into the Didactum web interface and delivers precise measurement values as well as actionable insights. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) per measurement point Logic schemes for automated actions when limit values are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measurement values Notifications via email, SMS, SNMP trap, and other channels Use cases Areas of application for the current transformer Monitor circuits and outgoing feeders in electrical distribution boards to detect overloads Monitor power consumption of critical IT and facility equipment in the data center Measure generator load and detect over- or underload Monitor input and output current of UPS systems to assess backup performance Monitor motors, pumps, compressors, and production machines for load changes Record charging and discharging currents of battery banks and energy storage systems Check the power yield of solar inverters and other renewable energy systems Detect wear or defects early based on changed current consumption Scope of delivery What is included in the package Please check the contents upon receipt for completeness and report any missing or damaged parts to your supplier immediately. The external Hall effect current transformer (AC or DC) is not included in this scope of delivery and must be ordered separately. Didactum current transformer (AC or DC, depending on the ordering option)1 piece RJ11 cable 6P4C, 2 m1 piece 3-pin terminal block, 2.54 mm1 piece 3-pin terminal block, 3.81 mm1 piece 3-wire connection cable, 2 m1 piece Screw B4.2 x 16 mm1 piece Self-adhesive label1 piece Benefits at a glance Why this current transformer is the right choice High accuracy1% measurement accuracy in signal transmission from the current transformer sensor. AC and DC availableSelect the matching variant for alternating or direct current measurement. Plug and playAutomatic detection at the analog port, no manual setup required. No separate power supplyThe 12V supply for the current transformer sensor is provided directly via the analog port. CompactSmall form factor (80 × 19 × 20 mm), desktop or wall mounting. Long rangeUp to 50 m distance to the monitoring system or expansion unit. ExpandableAdd additional current transformers easily via the VT408 expansion unit. Made in EUDeveloped and manufactured in the European Union. FAQ Frequently asked questions What is the difference between the AC and DC variants? Both variants are identical in connection and function. The AC variant is intended for use with AC Hall effect current transformers for AC measurement, while the DC variant is intended for use with DC Hall effect current transformers for DC measurement. The correct variant is selected during ordering via the options menu. Can I use the AC variant with a DC current transformer sensor? No. The AC variant works only with AC Hall effect current transformers, and the DC variant works only with DC Hall effect current transformers. An incorrect combination will not provide correct measurement values. Is the external Hall effect current transformer included in the package? No. The Didactum current transformer absolutely requires an external Hall effect current transformer with a 0–5V output and 12V DC supply, which must be ordered separately. How is the current transformer connected? The current transformer is connected via RJ11 cable to any analog port (A1 to A8) of the Didactum monitoring system. The external Hall effect current transformer is connected via a 3-wire cable to the 3-pin terminal block of the current transformer. Does the current transformer sensor need its own power supply? No. The 12V DC supply for the current transformer sensor is provided by the Didactum monitoring system via the analog port and passed through by the current transformer. Can the current transformer be operated independently without a monitoring system? No. The current transformer itself provides no display or analysis and must always be used together with a Didactum or Vutlan monitoring system and a suitable external Hall effect current transformer. Questions about the Didactum current transformer? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Precise Probe for DC Current Measurement The Didactum DC current transformer probe is a simple, open-loop Hall-effect DC current transducer that measures direct current on a cable contactlessly, without interrupting it. The cable to be measured is routed through the opening of the ring-shaped transducer; the probe converts the measured DC current into a proportional 0–5V DC output signal. This article refers to the DC-100 model with a rated current of 100A and a measurement range of 0–100 A — ideal for monitoring battery systems, DC busbars, and DC distribution lines. ⚠️ Important note: The Didactum DC current transformer probe measures the current on the cable, but cannot transmit the measured signal to a monitoring system on its own. The Didactum current transducer in the DC version, item no. DI14030-DC, is additionally required as a transceiver. It receives the probe’s 0–5V signal and forwards it via an analog port (A1…A8) to the Didactum monitoring system. Without the DI14030-DC, no display, evaluation, or alarm notification of the measured values is possible. Design Design of the Current Measuring Probe The current measuring probe consists of a ring-shaped transducer head with a pass-through opening and a 4-pin terminal block. 1 Pass-through opening (Ø 21 mm) The DC cable to be measured is routed through this opening in the ring-shaped toroidal transducer core. The probe measures the current contactlessly via the magnetic field generated. 2 Mounting tabs Two mounting tabs on the housing used to secure the probe with screws and nuts. 3 4-pin terminal block (3.81 mm pitch) Four-wire terminal for connection to the Didactum current transducer DI14030-DC. Pin assignment: G (Ground), M (0–5V measurement signal), G (Ground), + (+12V DC supply). Installation Mounting and Connection The current measuring probe and the Didactum current transducer (DI14030-DC) are installed together. 1 Mount the probe Secure the current measuring probe in a suitable location using screws and nuts. Route the DC cable to be measured through the probe’s pass-through opening. 2 Wiring to current transducer DI14030-DC Connect the 4 wires of the terminal block (G, M, G, +) to the 3-pin input terminal of the Didactum current transducer (DI14030-DC, DC version) according to the pin assignment. 3 Connect to the monitoring system Connect the Didactum current transducer (DI14030-DC) via RJ11 cable to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit. ⚠️ Safety instructions: Comply with the applicable regulations for installation in the respective country as well as the relevant accident prevention regulations, and also with internal operating, work, and safety rules. The specified technical limits, in particular insulation voltage, pass-through diameter, and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible cable diameter and the maximum insulation voltage of the probe. Web interface Full Control over Thresholds, Trends, and Automation Via the Didactum current transducer (DI14030-DC), the probe integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) for each measuring point Logic schemes for automated actions when limits are exceeded, e.g. in case of overload or deep discharge Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications by email, SMS, SNMP trap, and additional channels Applications Use Cases for the Current Measuring Probe Monitoring load current on DC Hall probes for battery strings, DC busbars, and distribution lines for remote power consumption monitoring Detecting overload and assessing the condition of DC circuits Monitoring charging and discharging currents in battery banks, UPS systems, and energy storage systems Detecting anomalous current flow to optimize battery lifespan Monitoring telecom rectifiers, DC motors, solar charge controllers, EV charging stations, and industrial DC loads Detecting operating changes, unexpected load fluctuations, and fault conditions in DC systems Scope of delivery What Is Included Please check the contents upon receipt for completeness and report any missing or damaged parts to your supplier immediately. The Didactum current transducer DI14030-DC is not included in this scope of delivery and must be ordered separately. Didactum DC current transformer probe DC-100 (100A)1 piece Self-adhesive label1 piece Screw L18.5 M42 pieces Bolt L14 M42 pieces Nut M3.52 pieces Key benefits Why This Current Measuring Probe Is the Right Choice 100A rated currentMeasurement range 0–100 A for battery systems, DC busbars, and distribution lines. Contactless measurementDetects DC current without disconnecting the cable. High accuracyAccuracy and linearity error of ≤ ±1.0%. Fast response timeResponse time of ≤ 20 ms for timely readings. Easy installationMounted using two tabs with screws and nuts. Robust insulationInsulation voltage AC 2.5 kV 50 Hz 1 min for safe operation. Wide operating rangeDesigned for ambient temperatures from -10 °C to +70 °C. Made in EUDeveloped and manufactured in the European Union. FAQ Frequently Asked Questions What current range is this model suitable for? This model (DC-100) has a rated current of 100A and covers a measurement range of 0–100 A. Make sure the maximum expected operating current of the monitored cable stays safely within this range. Can the current measuring probe be connected directly to the monitoring system? No. The probe provides a 0–5V analog signal and requires the Didactum current transducer in the DC version (DI14030-DC) as a transceiver to transmit this signal to an analog port of the monitoring system. Is DI14030-DC included in the package? No. The Didactum current transducer DI14030-DC is a separate product and must be ordered additionally unless already available. Does the cable need to be cut for installation? No. The current measuring probe measures contactlessly through the magnetic field of the cable routed through the pass-through opening. Cutting the cable is not required for measurement. Can multiple current measuring probes be used at the same time? Yes. Each DC circuit to be monitored requires its own DC-100 current measuring probe with its own Didactum current transducer (DI14030-DC) on a free analog port. If the available ports are not sufficient, the number can be increased using an 8-port sensor expansion unit. Is the probe also suitable for AC measurements? No. The Didactum DC current transformer probe is designed exclusively for direct current (DC). For AC measurements, a separate product is available that is combined with the AC version of the Didactum current transducer. Questions about the Didactum DC current transformer probe? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Precise Hall-Effect Current Transformer for AC Measurement The Didactum AC current transformer is a simple, open-loop Hall-effect AC current transformer (open-loop ammeter) that measures current on a conductor contactlessly without disconnecting it. The conductor to be measured is passed through the opening of the ring-shaped transformer; the transformer converts the measured AC current into a proportional 0–5V DC output signal. This article refers to model AC-100 with a rated current of 100A and a measuring range of 0–100 A — ideal for monitoring individual circuits, feeders, and medium loads. ⚠️ Important note: Although the Didactum AC current transformer measures the current on the conductor, it cannot transmit the measuring signal to a monitoring system on its own. The Didactum current transformer in the AC version, item no. DI14030-AC is additionally required; as a transceiver, it receives the 0–5V signal from the current transformer and forwards it via an analog port (A1…A8) to the Didactum monitoring system. Without the DI14030-AC, no display, evaluation, or alarming of the measured values is possible. Design Current Transformer Design The current transformer consists of a ring-shaped transformer head with a pass-through opening and a 4-pin connection terminal. 1 Pass-through opening (Ø 21 mm) The conductor to be measured is passed through this opening in the ring-shaped, toroidal transformer core. The transformer measures current contactlessly via the magnetic field that is generated. 2 Mounting tabs Two fixing tabs on the housing, used to secure the transformer with screws and nuts. 3 4-pin connection terminal (3.81 mm pitch) Four-pin terminal for wiring to the Didactum current transformer DI14030-AC. Pin assignment: G (Ground), M (0–5V measuring signal), G (Ground), + (+12V DC supply). Installation Mounting and Connection The current transformer and the Didactum current transformer (DI14030-AC) are installed together. 1 Mount the transformer Secure the current transformer in a suitable location using screws and nuts. Route the conductor to be measured through the transformer's pass-through opening. 2 Wiring to current transformer DI14030-AC Connect the 4 wires of the terminal (G, M, G, +) to the 3-pin input terminal of the Didactum current transformer (DI14030-AC, AC version) according to the wiring diagram. 3 Connect to the monitoring system Connect the Didactum current transformer (DI14030-AC) via RJ11 cable to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit. ⚠️ Safety instructions: Applicable regulations for installation in the respective country and the relevant accident prevention regulations must be observed, as well as internal operational, working, and safety rules. The specified technical limits, in particular insulation voltage, pass-through diameter, and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible conductor diameter as well as the maximum insulation voltage of the transformer. Web interface Full Control of Thresholds, Trends, and Automation Via the Didactum current transformer (DI14030-AC), the current transformer integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) for each measuring point Logic schemes for automated actions when thresholds are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications via email, SMS, SNMP trap, and other channels Applications Current Transformer Use Cases Monitor circuits and feeders in electrical distribution boards to detect overloads. Monitor the power consumption of critical IT and facility equipment in the data center. Monitor motors, pumps, compressors, and production machines for load changes. Measure generator load and detect over- or underload. Monitor input and output current of UPS systems to assess backup performance. Check the power output of solar inverters and other renewable energy systems. Automated alarming when defined current limits are exceeded. Early detection of wear or defects based on changes in current draw. Scope of delivery What Is Included Please check the scope of delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately. The Didactum current transformer DI14030-AC is not included in this scope of delivery and must be ordered separately. Didactum AC current transformer AC-100 (100A)1 pc Self-adhesive label1 pc Screw L18.5 M42 pcs Bolt L14 M42 pcs Nut M3.52 pcs Key benefits Why This Current Transformer Is the Right```xml Precision Hall-Effect Current Transducer for AC Measurement The Didactum AC current transducer is a simple, open-loop Hall-effect AC current transducer (open-loop ammeter) that measures the current on a line contactlessly without opening the circuit. The cable to be measured is passed through the opening of the ring-shaped transducer; the transducer converts the measured AC current into a proportional 0–5V DC output signal. This article refers to the AC-100 model with a rated current of 100A and a measurement range of 0–100 A — ideal for monitoring individual circuits, feeders, and medium loads. ⚠️ Important note: Although the Didactum AC current transducer measures the current on the line, it cannot transmit the measurement signal to a monitoring system by itself. The additionally required component is the Didactum current transducer in the AC version, part no. DI14030-AC, which acts as a transceiver, receives the 0–5V signal from the current transducer, and forwards it to the Didactum monitoring system via an analog port (A1…A8). Without the DI14030-AC, no display, analysis, or alarm notification of the measured values is possible. Design Design of the Current Transducer The current transducer consists of a ring-shaped transducer head with a passage opening and a 4-pin connection terminal. 1 Passage opening (Ø 21 mm) The cable to be measured is routed through this opening in the ring-shaped toroidal transducer core. The transducer measures the current contactlessly via the magnetic field generated. 2 Mounting tabs Two mounting tabs on the housing used to secure the transducer with screws and nuts. 3 4-pin connection terminal (3.81 mm pitch) Four-pole terminal block for wiring to the Didactum current transducer DI14030-AC. Pin assignment: G (Ground), M (0–5V measurement signal), G (Ground), + (+12V DC supply). Installation Mounting and Connection The current transducer and the Didactum current transducer (DI14030-AC) are installed together. 1 Mount the transducer Secure the current transducer in a suitable location using screws and nuts. Route the cable to be measured through the transducer's passage opening. 2 Wiring to the DI14030-AC current transducer Connect the 4 wires of the connection terminal (G, M, G, +) to the 3-pin input terminal of the Didactum current transducer (DI14030-AC, AC version) according to the wiring assignment. 3 Connect to the monitoring system Connect the Didactum current transducer (DI14030-AC) via RJ11 cable to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit. ⚠️ Safety instructions: Comply with the applicable installation regulations in the respective country as well as the relevant accident prevention regulations, together with internal company work, operating, and safety rules. The specified technical limits, especially insulation voltage, passage diameter, and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible cable diameter and the maximum insulation voltage of the transducer. Web interface Full Control of Thresholds, Trends, and Automation Via the Didactum current transducer (DI14030-AC), the current transducer integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) per measurement point Logic schemes for automated actions when limit values are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications via email, SMS, SNMP trap, and other channels Applications Use Cases for the Current Transducer Monitor circuits and feeders in electrical distribution panels to detect overloads Monitor the power consumption of critical IT and facility equipment in data centers Monitor motors, pumps, compressors, and production machines for load changes Measure generator load and detect overloading or underloading Monitor the input and output current of UPS systems to assess backup performance Check the output of solar inverters and other renewable energy systems Automatic alarm notification when defined current limits are exceeded Early detection of wear or faults based on changes in current draw Scope of delivery What Is Included in the Package Please check the contents of the package upon receipt for completeness and report any missing or damaged parts to your supplier immediately. The Didactum current transducer DI14030-AC is not included in this scope of delivery and must be ordered separately. Didactum AC current transducer AC-100 (100A)1 piece Self-adhesive label1 piece Screw L18.5 M42 pieces Bolt L14 M42 pieces Nut M3.52 pieces Key benefits Why This Current Transducer Is the Right Choice 100A rated currentMeasurement range 0–100 A for circuits and medium loads. Contactless measurementCurrent detection without opening the cable. High accuracy≤ ±1.0 % accuracy and linearity error. Easy installationMounting via two tabs with screws and nuts. Robust insulationInsulation voltage AC 2.5 kV 50 Hz 1 min for safe operation. Wide operating rangeDesigned for ambient temperatures from -10 °C to +70 °C. Standardized output0–5V DC signal, compatible with the Didactum current transducer DI14030-AC. Made in the EUDeveloped and manufactured in the European Union. FAQ Frequently Asked Questions Which current range is this model suitable for? This model (AC-100) has a rated current of 100A and covers a measurement range of 0–100 A. Make sure the maximum expected operating current of the monitored cable stays safely within this range. Can the current transducer be connected directly to the monitoring system? No. The current transducer provides a 0–5V analog signal and requires the Didactum current transducer in the AC version (DI14030-AC) as a transceiver to pass this signal to an analog port of the monitoring system. Is DI14030-AC included in the scope of delivery? No. The Didactum current transducer DI14030-AC is a separate product and must be ordered additionally if it is not already available. Does the cable need to be cut for installation? No. The current transducer measures contactlessly via the magnetic field of the cable routed through the passage opening. Cutting the cable is not required for measurement. Can multiple current transducers be used at the same time? Yes. Each monitored circuit requires its own AC-100 current transducer with its own Didactum current transducer (DI14030-AC) on a free analog port. If the available ports are not sufficient, the number can be expanded using an 8-port extension unit. Is the transducer also suitable for DC measurements? No. The Didactum AC current transducer is designed exclusively for alternating current (AC). For DC measurements, a separate product is available that is combined with the DC version of the Didactum current transducer. Questions about the Didactum AC current transducer? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
Compact Hall Effect Probe for Smaller AC Circuits The Didactum Small AC Current Transformer probe is a simple open-loop Hall effect AC current transducer (open-loop ammeter) in a particularly compact design that measures current on a conductor contactlessly without disconnecting it. The cable to be measured is passed through the opening of the ring-shaped transducer; the probe converts the measured AC current into a proportional 0–5 V DC output signal. This article refers to the AC-50 model with a rated current of 50 A and a measuring range of 0–50 A — ideal for individual circuits, outgoing feeders, and smaller to medium-sized loads. ⚠️ Important note: The Didactum Small AC Current Transformer probe measures the current on the conductor, but it cannot transmit the measurement signal to a monitoring system on its own. You also need the Didactum AC Current Transformer, part no. DI14030-AC, which acts as a transceiver, receives the probe’s 0–5 V signal, and forwards it via an analog port (A1…A8) to the Didactum monitoring system. Without the DI14030-AC, no display, analysis, or alarm notification of the measured values is possible. Design Current Probe Design The current probe consists of a compact ring-shaped transducer head with a pass-through opening and a 3-pin connection terminal. 1 Pass-through opening The cable to be measured is routed through the opening in the ring-shaped compact transducer core. The probe measures the current contactlessly via the magnetic field that is generated. 2 Mounting tabs Two mounting tabs on the housing used to secure the probe with screws and nuts. 3 3-pin connection terminal (pitch 3.81 mm) Three-pin terminal for wiring to the Didactum AC Current Transformer DI14030-AC. Pin assignment: + (+12 V DC supply), G (Ground), M (0–5 V measurement signal). ℹ️ Note on confusion: The AC-50 probe has a 3-pin terminal (+, G, M). The larger K6A model for higher currents uses a 4-pin terminal (G, M, G, +). When connecting, make sure the wires are assigned correctly according to the terminal labeling. Installation Mounting and Connection The current probe and the Didactum AC Current Transformer (DI14030-AC) are installed together. 1 Mount the probe Secure the current probe in a suitable location with screws and nuts. Route the cable to be measured through the probe’s pass-through opening. 2 Wiring to current transformer DI14030-AC Connect the 3 wires of the terminal (+, G, M) to the 3-pin input terminal of the Didactum AC Current Transformer (DI14030-AC) according to the wiring assignment. 3 Connect to the monitoring system Connect the Didactum AC Current Transformer (DI14030-AC) to a free analog port (A1…A8) of the Didactum monitoring system or an 8-port sensor expansion unit using an RJ11 cable. ⚠️ Safety instructions: The regulations applicable to installation in the respective country and the relevant accident prevention regulations must be observed, as well as internal company work, operating, and safety regulations. The specified technical limits, especially insulation voltage and ambient temperature range, must under no circumstances be exceeded. Before installation, check the maximum permissible conductor diameter and the maximum insulation voltage of the probe. Web interface Full Control over Thresholds, Trends, and Automation Via the Didactum AC Current Transformer (DI14030-AC), the probe integrates seamlessly into the Didactum web interface. Individual thresholds (Lower Critical, Lower Warning, Normal, Upper Warning, Upper Critical) for each measurement point Logic schemes for automated actions when limit values are exceeded, e.g. in case of overload Clear, individually configurable dashboard Graphical trend display and continuous logging of measured values Notifications via email, SMS, SNMP trap, and other channels Application examples Use Cases for the Current Probe Monitoring circuits and feeders in electrical distribution panels to detect overloads Monitoring motors, pumps, compressors, and production machines for load changes Automatic alarm notifications when defined current limits are exceeded to prevent equipment damage and power outages Monitoring the power consumption of smaller IT and facility devices in the data center Early detection of wear or defects based on changes in current consumption Complementing existing monitoring environments (Zabbix, PRTG, Nagios) Scope of delivery What Is Included Please check the delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately. The Didactum AC Current Transformer DI14030-AC is not part of this scope of delivery and must be ordered separately. Didactum Small AC Current Transformer probe AC-50 (50 A)1 piece Self-adhesive label1 piece Screw L18.5 M42 pieces Bolt L14 M42 pieces Nut M3.52 pieces Key benefits Why This Current Probe Is the Right Choice 50 A rated currentMeasuring range 0–50 A for circuits and smaller to medium-sized loads. Compact designEspecially space-saving, ideal for tight control cabinets and distribution panels. Contactless measurementCurrent detection without disconnecting the conductor. High accuracy0.5% accuracy and linearity error. Easy installationMounting via two tabs with screws and nuts. Robust insulationInsulation voltage AC 2.5 kV 50 Hz 1 min for safe operation. Wide operating rangeDesigned for ambient temperatures from -10 °C to +70 °C. Made in EUDeveloped and manufactured in the European Union. FAQ Frequently Asked Questions For which current range is this model suitable? This model (AC-50) has a rated current of 50 A and covers a measuring range of 0–60 Aac. Make sure the maximum expected operating current of the conductor being monitored stays safely within this range. How does this probe differ from the larger K6A probe? The AC-50 probe is more compact and uses a 3-pin terminal (+, G, M), while the K6A probe for higher currents uses a 4-pin terminal (G, M, G, +). Both probes require the Didactum current transformer (AC version) as the transceiver to the monitoring system. Can the current probe be connected directly to the monitoring system? No. The probe outputs a 0–5 V analog signal and absolutely requires the Didactum AC Current Transformer (DI14030-AC) as a transceiver, which transfers this signal to an analog port of the monitoring system. Is the DI14030-AC included in the scope of delivery? No. The Didactum AC Current Transformer DI14030-AC is a separate product and must be ordered additionally if not already available. Does the conductor have to be cut open for installation? No. The current probe measures contactlessly via the magnetic field of the conductor routed through the pass-through opening. Cutting the conductor is not necessary for the measurement itself. Can multiple current probes be used at the same time? Yes. Each circuit to be monitored requires its own AC-50 current probe with its own Didactum AC Current Transformer (DI14030-AC) connected to a free analog port. If the available ports are not sufficient, the number can be expanded using a VT408 expansion unit. Questions about the Didactum Small AC Current Transformer probe? Our support team in Germany will advise you free of charge on selection, installation, and configuration. Contact form (+49) 2501 92 90 160
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Manufacturer information:
Didactum® Security GmbH
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de