AC current measuring transformer
This AC current transformer can measure AC current up to 100A.
The current transformer consists of a plastic housing with an integrated AC current loop and a 4-pin terminal block. To transmit the measurement data to Didactum's Ethernet-enabled measuring devices, the optionally available AC current transmitter is required.
Safety instructions for electrical work:
The applicable regulations and safety rules for electrical work must be strictly observed during the installation of this AC current transformer. Always commission a qualified electrician or electrical contractor for electrical installation work.
It is essential to ensure that the technical specifications of the AC current transformer are not exceeded under any circumstances.
The transducer is then connected to the appropriate sensor.
Mounting hardware is included.
Clicking this link will take you to the sensor's configuration settings. Here you can name and configure the sensor individually.
You can, of course, name this sensor individually.
Under “User defined type,” please select “current.”
In the bottom field, “Expression,” please enter 20*x, where K=20.
Then please click “OK” to save the settings in the measuring device.
Installation of the AC current measuring transformer
The AC current transformer has a maximum insulation voltage of 2 kV. It can measure AC current on power cables with a maximum diameter of 10 mm. To do this, simply open the current transformer's cover and insert the power cable without damaging it.
After inserting the power cable, simply close the current transformer again. Note that the maximum distance between the AC current transformer and the Ethernet-based measuring device must not exceed 50 meters. After inserting the power cable and closing the current transformer, install it in a suitable mounting location. M4 screws and M4 nuts for mounting are included.
Next, connect the sensor transmitter (must be ordered separately) using the included ribbon cable. Connect the green connector of the ribbon cable to the current transformer. Then, mount the sensor transmitter. Mounting hardware is included in the sensor packaging. Finally, connect the sensor transmitter using the included 2-meter patch cable. The other end of the cable is then connected via plug and play to an Ethernet-based measurement and monitoring system of the 50/100/300/500 series.
Now click the "floppy disk icon" in the top right corner. The sensor will now be updated in the web interface. A new system "A" (short for Ampere) will appear.
Connecting the current transformer to the SNMP monitoring hardware
Connect the current transformer to the Didactum SNMP monitoring hardware using the included RJ11 patch cable. Connect the external power supply. Then connect the current transformer using the flat cable (green connectors). Two green LEDs will now illuminate on the AC current transformer. The SNMP monitoring hardware automatically recognizes the current transformer as a sensor and lists it in the German-language web interface.
Notifications and alarms for the AC measuring transducer
Custom notifications and alarms can be configured in the web interface of the Ethernet-based SNMP monitoring hardware. If the AC voltage falls below or exceeds a certain threshold, the measuring device sends alarm messages via email or SMS (via GSM modem or email-to-SMS gateway). The relays integrated into the measuring device can also be switched automatically.
Technical specifications for sensor for AC measuring transducer
- Sensor suitable for: All IP-based measuring and monitoring devices from Didactum
- Auto-identification: Yes. The connected sensor is automatically recognized by the measuring and monitoring system.
- Dimensions: 68 x 47 x 25 mm
- Permissible operating environment: -10°C to +85°C at 5% to 90% relative humidity (non-condensing)
- Input power: 12V DC, 1A
- Connections: 4-pin terminal for mounting on the DC transducer
- Power consumption: 100 mW (typical)
- Max. distance: 50 meters
- Weight: 60g
- SNMP OID: Yes. Measurement data can be queried remotely via SNMP command or SNMP-compatible software.
- Made in: EU