Instruction Manual
4 Setup and Operation
4.1 Gauge start up and operation
Read this user manual in its entirety before operating the instrument.
The signal output is available when power is applied to the gauge. Allow for a stabilizing time of approx. 10 min.
Once the gauge has been switched on, it can remain in operation continuously regardless of the pressure.
Connect power to the PCM301 using the designated pins 3 and 4 of the 9-pin D-sub connector. Alternatively,
you can power the device by connecting InstruTech's PS401-A power supply to the gauge.
4.2 Gauge Status LEDs
LED
<ST>
lit solid or blinking red
<SP1>
<SP2>
InstruTech
DIA
SP2
Light-emitting diodes (LEDs)
State
Condition
off
no supply voltage
lit green
measurement mode
error
lit green
SP1 Relay closed
off
SP1 Relay open
lit green
SP2 Relay closed
off
SP2 Relay open
ST
Status
SP1
ADJ
PCM301 Busy Bee
Page 13
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