Areas of Application
Thanks to its high measurement accuracy and easy integration, the DC Voltage Sensor is ideally suited for monitoring DC voltage in various technical environments:
- Data centers and server rooms: Monitoring the power supply of critical equipment such as UPS systems, battery storage units, or DC power lines to detect voltage deviations at an early stage.
- Industrial automation: Monitoring DC voltage in control circuits and machinery to ensure stable power delivery for automated processes.
- Renewable energy systems: Measuring the output voltage of solar cells, wind turbines, or DC converters for performance optimization and fault detection.
- Communication and network technology: Ensuring stable supply voltages in base stations, router rooms, and telecommunication facilities.
- Research and laboratory environments: Precise voltage monitoring in test setups and experiments where constant electrical parameters are essential.
Models
- DC Voltage Sensor 4V: Measurement range 0–4 V, for sensitive low-voltage applications.
- DC Voltage Sensor 5V: Measurement range 0–5 V, suitable for standard electronic systems.
- DC Voltage Sensor 10V: Measurement range 0–10 V, for general control and supply voltage measurements.
- DC Voltage Sensor 15V: Measurement range 0–15 V, for extended industrial DC applications.
- DC Voltage Sensor 75V: Measurement range 0–75 V, optimized for low-voltage and precise high-voltage measurements.
Dimensions:
Installation:
Technical Specifications:
- Sensor type: Analog sensor
- Measured voltage: 0–75 V DC
- Measurement: Direct current (DC) voltage
- Accuracy: 1%
- Daisy chain: No
- Cable length: RJS3 shielded cable 2 m (6P6C RJ12) included
- Power consumption: 100 mW
- Optimal temperature range: -10 °C to +80 °C
- Operating humidity: 0 to 95 % (non-condensing)
- Inputs: 2-pin terminal, 5 mm pitch
- Outputs: 4-pin 6P6C RJ12
- Mounting options: Desktop device, wall mounting
- Maximum distance to unit: 50 m
- K coefficient: ~14.8, used internally within the interface
- Isolation: 1 kV
Important:
Only a 6P6C RJ12 cable may be used with the sensor! The cable is included in the delivery.
- Connect one end of the shielded 6P6C RJ12 cable to an analog port (A1–A8) of a Didactum monitoring unit and the other end to the DC Voltage Sensor.
- Connect “+” and “–” to the 2-pin terminal block.
- Insert the terminal block into the DC Voltage Sensor.
Use examples:
Example 1: Battery Voltage Measurement
The DC Voltage Sensor measures the battery’s DC voltage in real time and transmits the readings to the Didactum system for remote monitoring. This allows you to continuously monitor the battery voltage and detect early when the charge level becomes critical.
A fully charged 12 V battery typically shows about 12.6 to 12.8 volts at rest; values below 12.4 volts indicate recharging is needed, while significantly lower voltages may point to a discharged or faulty battery.
This is important in applications such as data centers, industrial, or energy systems to ensure reliable operation. The Sensor supports various voltage ranges up to 75 V and provides accurate measurements within ±1 % precision.
Example 2: Measurement of a 48V Electrical Circuit
To measure the DC voltage in a 48 V circuit, use the DC Voltage Sensor capable of accurately detecting voltages up to 75 V.
The DC Voltage Sensor continuously transmits the measurement data to the Didactum system, which analyzes the data in real time and provides visualizations or warning alerts. This is especially important for the safe operation and monitoring of 48 V installations such as industrial control systems or energy storage units.
The sensor offers a measurement accuracy of ±1 % and can be operated up to 50 meters away from the monitoring system. This enables reliable control of the system’s voltage status, facilitating early fault detection and maintenance actions.
Setup:
Once the DC Voltage Sensor is connected to the analog ports of the Didactum monitoring system, the system automatically detects the current sensor as a sensor.
It will appear in the system under: "System Tree" >> "Autodetect".
By clicking on the sensor, a properties window will open as a modal, allowing you to view and configure the sensor settings.
Sensor Configuration in the Didactum System
- Change the sensor name, for example to “DC Voltage Sensor 1”, to make it easier to identify.
- Change the sensor type by selecting “Voltage”.
The selection of the type does not affect the sensor’s properties but only changes the icon for better clarity. - Use the “expression formula” printed on the sensor housing.
For example, the formula for this sensor is:14.993*(x-0.019). This formula converts the raw measurement data into the correct actual voltage value.
With these simple steps, you can optimally adjust the sensor display and readings to your needs and manage them clearly within the Didactum system.
Expression Formula:
Use the “expression formula”: each sensor has its own formula printed on the sensor housing.
For example, the formula for the current sensor is “14.993*(x-0.019)”. This formula is used to convert the measured raw data into the actual voltage value.
Setting Sensor Thresholds in the Didactum System
- Set the threshold values for alarm and warning levels by dragging the sliders: Low Alarm, Low Warning, High Warning, and High Alarm.
- Click “Save” or “Apply” at the bottom of the “Properties” window. The page will reload and the settings will be saved.
These threshold values allow the system to automatically trigger notifications or actions when the defined voltage ranges are exceeded or fallen below. This enables precise adaptation of voltage monitoring to your requirements and increases operational safety. The easy drag-and-drop control greatly simplifies the configuration of threshold values.