Getting a pressure transmitter from a cooling loop into the monitoring system should not require planning a separate supply. The Sensor 4-20mA 1W-UNI set includes the plug-in adapter that powers the current loop. The converter isolates the loop from the bus and reports the reading over 1-Wire UNI, and the manufacturer states the loop can run for tens or even hundreds of meters.
Benefits
- Complete: converter and plug-in power adapter in one set.
- Works with most industrial probes: 4-20 mA input for two-wire sink-type probes.
- Isolated: current loop and 1-Wire UNI bus are separated, protected by a 63 mA fuse.
- Adjustable: 8-point calibration table, set with the 1W-UNI USB calibrator.
- Daisy-chain ready: 2x RJ11 for linking several sensors.
Technical data
| Input | 4-20 mA, two-wire current loop, sink type |
|---|
| Accuracy | 2 % of full range |
|---|
| Calibration points | 8 |
|---|
| Protection | 63 mA fuse |
|---|
| Galvanic isolation | Yes |
|---|
| Interface | 1-Wire UNI, 2x RJ11 for daisy-chaining |
|---|
| Bus supply | 5 V via RJ11, 20 mA |
|---|
| Loop supply | 12-30 V DC, barrel jack 2.1/5.5 mm, 20 mA at 12 V, plug-in adapter included |
|---|
| Converter operating conditions | -30 to +85 °C, 0 to 100 % RH |
|---|
| Storage conditions | -30 to +60 °C, 5 to 95 % RH |
|---|
| Converter dimensions (W x H x D) | 79 x 68 x 30 mm |
|---|
| Converter ingress protection | IP23 |
|---|
| Mounting | desktop |
|---|
| Warranty | 24 months |
|---|
| Manufacturer part number | 600605 |
|---|
Applications
- Pressure transmitters in liquid cooling loops with CDUs and quick disconnects
- Level of coolant and fuel tanks, for example for backup generators
- CO2 and gas concentration in equipment rooms
- pH probes and other industrial sensors with a 4-20 mA output
Scope of delivery
- Sensor 4-20mA 1W-UNI signal converter
- Plug-in power adapter for powering the 4-20 mA probe
- Not included: 4-20 mA probe
Compatibility
- Connects to 1-Wire UNI RJ11 ports on Ares, STE2, Poseidon2 and SD 2x1Wire
- Also available without adapter as the base unit Sensor 4-20mA 1W-UNI (600565)
- For self-powered 0-20 mA sensors, use the Sensor 0-20mA 1W-UNI