Description
The unit accepts platinum Pt elements, elther 100 ohm or 1k ohm variety. lt also can accept 10k thermistors, Type ll and Type ll. Cabling can beaccomplished using two, three or four wire connections. Communications is suppored over Bacnet and Modbus over both RS485 and the Ethernetiports. All readings and the various settings are available as Bacnet obiects and Modbus registers.Each of the sensors connecis to a terminal block which can be plugged in and out without disturbing adiacent sensor connections. There are twelvesensor channels and the sensors can be wred with three and four wire connections for instrument grade readings over long distances. For shorerdistances and where accuracy is not so critical a standard wo wire connecion works fine in manv applicaions, Note however that due to spacelimitations the sensors on channels 9 thru 12 are limited to three wires. channels one through eight can have the 2, 3 or 4 wire connections.The Rs485 connections have two separate terminal blocks to make Rs485 troubleshooting easier,they are not acuall separate RS485 ports but arewired internally together to make it easy to separate the network during commissioning.Power can be provided by any convenient supply from 12 volts up to 24 vots AC or Dc. The interal power supply is half wave rectified so thatseveral devices can share the same transiormer A self reseting fuse auards aoainst around oons and over voltaae condions
Wiring Diagram
Dimensions:
