Signal Inputs/Outputs
Remote On / Off and Alarm Output
Remote On / Off
This allows the operator to turn the Chiller ON and OFF using a remote dry contact. The Chiller is ON when the
contact is open; it is OFF when the contact is closed. A 10-ft (3 m) cord with 5-pin mating plug is provided.
Alarm Output
This allows the operator to connect a remote alarm device to the Chiller. The alarm output consists of normally
open (NO) and normally closed (NC) contacts which are switched whenever an alarm, fault, or error condition is
detected or when the Chiller is OFF. A 10-ft (3 m) cord with 5-pin mating plug is provided.
RS-232 Serial Communication (RS-485 Option)
This allows the operator to remotely control the Chiller and/or output temperature readings to an external
recorder or other auxiliary device. A 9-pin D-connector is provided on the rear of the instrument enclosure for
this connection.
The maximum communications distance for Chillers equipped with RS-232 is 50 feet (15 meters); the maximum
distance for units equipped with the RS-485 option is 4000 feet (1200 meters).
See the Technical Information section for serial communications protocol and commands.
110-279 15
To Next Page
Loading...
