36
tina56e1-f (2015-09)
4 Operation
When the supply voltage is applied, the measurement signal is
available at the connector (
→
"Power Connection").
Allow a stabilization period of at least 10 minutes. It is advisable
to operate the gauge continuously, irrespective of the pressure.
The gauge is factory calibrated. Due to long time operation or
contamination, a zero drift could occur. Periodically check the
zero and adjust it if necessary (adjusting the gauge
→
57).
4.1
Status Indication and Displays
Light-emitting diodes (LEDs)
SP1
SP2
ADJ
ST
DIA
Status
LED State
Meaning
<ST>
off
no supply voltage
lit green
measurement mode
lit solid or is
blinking red
error (
→
59)
<SP1>
lit green
Relay SP 1 closed
off
Relay SP 1 open
<SP2>
lit green
Relay SP 2 closed
off
Relay SP 2 open