Operation - Sentry AutoVREL Installation, Operation And Maintenance Manual

23. With the 24 VDC power supply turned off, connect 24 VDC to +24 VDC pin (PWR
Conn: Detail D pin 1) on the AutoVREL controller and the return to GND (PWR Conn:
Detail D pin 2) on the AutoVREL controller.
Improper connection of these two wiring harnesses could cause damage to the unit, or cause it
not to operate as designed .
24. Apply power to the AutoVREL flow controller and verify it initializes its calibration and
start-up sequence.
25. Once the start-up sequence is complete, open the sample isolation valve and check
connections for leaks. Pay particular attention to the piping between the VREL control
valve, flow meter and TSV thermal shutoff valve.
If no leaks are found, the AutoVREL flow controller is ready for operation.
Factory Settings
The settings below are factory settings for AutoVREL units. These values are adjustable
and can be changed according to customer requirements.
Flow rate Setpoint: 1000 cc/min

Operation

Electrical Shock Hazard – All input and output wiring should be installed in such a manner that
access to bare copper is prohibited during normal operation .
If cotter pin was removed, a new pin should be ordered from Sentry Equipment to replace it .
Using a cotter pin from any other manufacturer will void warranty .
14 Sentry Equipment Corp