Chapter 4 Rs-485 Module Operation; Preparing To Operate The Rs-485 Module - HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual

4.1 Preparing to operate the
RS–485 module
Table 4-1 Relay setpoints and assignments
Relay Activation setpoint (Torr)
Relay 1
Relay 2
Relay 3
Relay 4
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Convectron ATM Vacuum Gauge Module Instruction Manual
Chapter 4
This chapter explains how to operate the Convectron ATM module with an
RS–485 digital output.
Using the module to measure the pressure of flammable
or explosive gases can cause a fire or explosion resulting
in severe property damage, personal injury, or death.
Do not use the module to measure the pressure of flammable or
explosive gases.
Before putting the module into operation, you must perform the following
procedures:
1. Install the module in accordance with the instructions on pages 5–14.
2. Develop a logic diagram of the process control function.
3. Use Table 4-1 to record the proposed activation and deactivation
setpoints, in Torr, and assignments for each relay.
Deactivation setpoint (Torr)
RS–485 Module Operation
WARNING
Relay assignment
Convectron gauge
Differential pressure sensor
Convectron gauge
Differential pressure sensor
Convectron gauge
Differential pressure sensor
Convectron gauge
Differential pressure sensor
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