Sensor 0-20mA
€164.10
Sensor 0-20mA 1W-UNI: Precise Signal Converter for Industrial Monitoring
The HW-group Sensor 0-20mA 1W-UNI is a galvanically isolated direct current sensor, specifically developed for measuring currents in the range of 0 to 20 mA. This sensor is ideal for connecting external industrial probes with 0-20mA output (“source” type, 4-wire) to 1-Wire UNI systems such as Poseidon2 or Ares, making the data accessible via LAN or GSM. It is the perfect solution for remote monitoring in server rooms, data centers, industrial facilities, and other technical environments.
Main Features of the Sensor 0-20mA 1W-UNI
The Sensor 0-20mA 1W-UNI converts analog 0-20mA signals into the 1-Wire UNI format (RJ11) and provides precise current loop measurement. The galvanic isolation ensures maximum safety and reliability. Here is an overview of the key features:
- Precise Current Measurement: The 0-20mA sensor measures currents in the range of 0-20 mA (“source” type) with an accuracy of 2% and a resolution of 0.1 mA, ideal for industrial applications such as pressure, fill level, or current transformers.
- Galvanic Isolation: The 0-20mA input is electrically isolated from the 1-Wire UNI bus (RJ11), preventing interference and increasing safety.
- Compatibility: Compatible with HW-group devices such as Poseidon2, Ares, HWg-PWR, and other 1-Wire UNI systems, for seamless Poseidon2 integration via LAN or GSM.
- Power Supply: Bus-powered via the 1-Wire UNI bus (max. 2 sensors per active port) or via an external power supply, providing flexibility during installation.
- Calibration: Equipped with an 8-point calibration table, which can be adjusted with the 1W-UNI USB calibrator to optimize readings for specific industrial sensors.
- Compact Design: With two RJ11 connectors for daisy-chaining and compact dimensions (65 x 80 x 30 mm), the sensor is space-saving and flexible in use.
Application Areas of the Sensor 0-20mA 1W-UNI
The Sensor 0-20mA 1W-UNI is highly versatile and suitable for scenarios where precise environmental monitoring is required. Typical application areas include:
- Server Rooms and Data Centers: Monitoring parameters such as power consumption or pressure to ensure operational safety.
- Industrial Applications: Measurement of fill levels in tanks, pressure in pipelines, or current from transformers using 0-20mA sensors.
- Environmental Monitoring: Integration into systems for monitoring environmental parameters such as air quality or temperature in combination with other sensors.
- Energy Management: Combination with HW-group devices for a comprehensive energy monitoring system that provides real-time data.
- Remote Monitoring: Email or SMS notifications when values are outside the “SafeRange” to protect critical systems.
Why the Sensor 0-20mA 1W-UNI is the Right Choice
The Sensor 0-20mA 1W-UNI stands out for its high precision and easy integration. Compared to other signal converters, it offers galvanic isolation and compatibility with a wide range of HW-group devices. Daisy-chaining and flexible power supply make it ideal for industrial environments with long current loops. The 1-Wire UNI interface enables easy connection to monitoring systems such as Poseidon2 or Ares, while the calibration option allows adaptation to specific sensors.
Technical Details
- Input: 0-20 mA (“source” type, 4-wire current loop)
- Interface: 1-Wire UNI (2x RJ11 for daisy-chaining)
- Power Supply: Bus-powered (1-Wire UNI, max. 2 sensors per port) or external 12-30V DC supply
- Measurement Accuracy: 2% of the full 20mA range
- Resolution: 0.1 mA
- Protection: 63 mA fuse
- Operating Environment: -40 °C to +85 °C, 5% to 70% relative humidity
- Protection Class: IP23
- Dimensions: 65 x 80 x 30 mm
- Weight: 200 g
Integration with HW-group Products
The Sensor 0-20mA 1W-UNI is perfectly matched to HW-group devices such as Poseidon2, Ares, or HWg-PWR. In combination with these devices, you can build a comprehensive energy monitoring system that provides measurement data in real time via LAN, GSM, SNMP, or Modbus/TCP. The free HWg-PDMS software enables analysis and export of data to Excel for detailed reports. Connection to the SensDesk portal offers additional visualization options via Android or iOS apps.
Installation and Setup
Installation of the sensor is straightforward. Connect the 0-20mA probe to the screw terminals, connect the RJ11 output to the monitoring system, and use either bus power or an external 12-30V DC supply. Thanks to its compact design and daisy-chaining capability, the sensor can also be used in confined spaces. Calibration can be adjusted with the 1W-UNI USB calibrator to ensure precise readings.
The HW-group Sensor 0-20mA 1W-UNI is the ideal solution for precise current loop measurement and remote monitoring in industrial applications. With its galvanic isolation, high accuracy, and flexible interfaces, it is perfect for server rooms, industrial facilities, and building management. Optimize your monitoring systems with the Sensor 0-20mA 1W-UNI.
Bus Properties:
- Bus Type: 1Wire-UNI (RJ11)
- Compatible Devices: Poseidon2 xxxx, Ares xx, Poseidon 2250, Poseidon 4002, SiteMon5
- Connection: 2x RJ11 (sensors can be connected in series)
- Maximum Distance: 60m (total cable length from the active port)
- Galvanic Isolation: 1Wire-UNI bus is galvanically isolated from the 0-20mA input
Power Supply:
- Power Supply: Via 1Wire-UNI bus (RJ11)
- Power Limit: One active RJ11 port can supply up to two sensors
- Power Amplification: Use "1-Wire hub Power" for higher power
- Galvanic Isolation: 0-20mA input is galvanically isolated from 1Wire-UNI (RJ11)
Sensor Input:
- Connection: 2-pin terminal block (I+, I-)
- Supported Sensors: External current-sourcing sensors, "0-20mA DC (Source)" type
- Input Range: 0-20 mA (max. 30V)
- Input Protection: Fast-blow fuse - 63 mA
- Accuracy: 2% of full 20mA range / 25°C
Sensor Output:
- Resolution: 1 decimal place
- Displayed Units: Standard [mA] (conversion to [m], [mm], [hPa], [ppm] possible)
- Measurement Period: Once per second
Environmental Conditions and Dimensions:
- Operating Conditions: -40 to +85 °C (-40 to +185 °F) / 5 to 70% RH
- Dimensions: 65 x 80 x 30 [mm]
- Weight: 200 g
Additional Features:
- Calibration: Calibration tool available for MS Windows
- Calibration Points: 8 different points on a curve
- Unit Conversion: Programmable conversion from input voltage [V] to output units
- GSM/GPRS Monitoring: Compatible with Ares 12 for remote monitoring
- Backup Power Supply: Internal Ares battery provides backup power for the sensor
Monitoring devices
Other available sensors
Extension units
Accessories
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
