HW group Light 1Wire-UNI
Simple light intensity sensor for indoor use
- Output 0% to 100%
- Several sensors can be connected in parallel (each sensor has a unique serial number)
- Quick and easy installation
Simple light intensity sensor for indoor use. The sensor is designed for use with Ares, Poseidon, and other HW group products. Connects to the 1-Wire UNI bus (RJ11).
Typical applications include distinguishing day from night, or detecting the presence of people in a server room (light is turned on).
Each sensor is identified by a unique serial number. Several sensors can be connected in parallel to a single RJ11 port.
Usage examples
- Connect the probe to a Poseidon unit and receive an e-mail every time someone enters the room (and turns on the light) or leaves (turns off the light).
- Connect the probe to an Ares unit for indicative monitoring of photovoltaic panel illumination.
- Can be used for simple detection of access to a cabinet.
- Poseidon makes the illumination intensity accessible through SNMP, Modbus/TCP, or other protocols.
Examples of sensor connections
- Star topology – up to 60m + T-Box
- Sensors can be connected in parallel using a T-Box or T-Box2 splitter.
- Total wiring length should not exceed 60 meters from an active port.
- Combined temperature+humidity sensor appears as 2 different sensors with two different IDs.
- Some sensors feature a RJ11 connector for daisy-chain (serial) connection.
- 3m connection cable is usually included.
- Total wiring length should not exceed 60 meters from an active port.
- After autodetection, sensors cannot be moved between individual active ports. When a sensor connection changes, autodetection needs to be re-done.
- Total wiring length should not exceed 60 meters from an active port.
Daisy chain – up to 60m
4 active ports – 4x 60m
Technical parameters
- Output
0–100%
Communication
1-Wire bus (Data, GND, +5V)– RJ11
Operating conditions
-40°C to +85°C (-40°F to +185°F)
Probe dimension & cable
78 x 9.5 x 6 mm, cable 3m
Mounting hole drill
Ø3mm
Sensor Light 1W-UNI 3m
- Light intensity sensor, indoor use, 3m cable, RJ11 connector
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