DC Direct Current Sensor / DC Voltmeter
The SNMP-compatible DC current sensors were specifically developed for measuring DC voltage. They are compatible with all web-based measurement and monitoring systems from the manufacturer Didactum. Even previous models can be equipped with this DC current sensor/voltmeter.
This sensor is offered in two different versions:
- DC current sensor/voltmeter with a measuring range of 0 to 75V DC
- DC current sensor/voltmeter for 0 to 14V DC
Scope of delivery
The labeled sensor comes with a shielded RJ12 sensor cable (2 meters long), a 2-port terminal connector, and mounting hardware (screw, double-sided mounting tape).
Please ensure that only the shielded RJ12 sensor cable (6P6C) included in the package is used. If you require a longer cable, suitable sensor cables can be ordered from the Didactum Security GmbH online shop.
Sensor installation
Connect the shielded RJ12 connector of the 2-meter sensor cable to the RJ12 port of the DC current sensor/voltmeter. Then, plug the second shielded connector into a free sensor port on the 50/100 III (DC) / 300/500 II (DC) series measuring and monitoring device. Finally, connect the green terminal connector to the DC current source to be monitored using a suitable two-wire cable.
Important note:
Before connecting the sensor, verify that the DC voltage to be measured is supported by the DC voltage sensor. Always consult a qualified electrician for this.
For example, change the sensor's name to "DC Direct Current".
In our example, we've named it "DC Voltmeter Didactum".
Under "User defined type", we've selected "Voltage" to get the correct "V" icon (short for "Voltage"). Next, you can define individual limit and threshold values for the DC voltage ("Low Alarm Level", "Low Warning Level", "Normal", "High Warning Level", and "High Alarm Level").
These values can be set using either the mouse or the keyboard.
At the very bottom of the menu, under "Expression ( f(x), for instance: 2*x+123 )",
we now enter the required conversion formula "14.8*x" (without quotation marks),
where K = ~14.8.
After configuring the DC sensor, click "Apply" to save the settings.
Please remember to save the settings permanently in the web-based monitoring system by clicking the floppy disk icon.
Configuration of the DC sensor in the monitoring system
As soon as this sensor, equipped with an SNMP OID, is connected to one of the analog sensor ports of the web-based measurement and monitoring system, it is immediately identified and listed in the multilingual web interface.
The DC current sensor then appears in the "System Tree" under "Autodetect."
Editor's Note:
The icon "V" stands for "Voltage" and is used for all voltage sensors and converters from the manufacturer Didactum.
DC Voltage Sensor
