Instruction Manual WGM701 Wasp
InstruTech
Page 25
7.5
Troubleshooting
In case of an error, it may be helpful to just turn off the mains supply and turn it on again after 5 seconds.
Problem
LED
<ST>
LED
<HV-STD>
Status
Signal
Possible Cause
Possible Solution
No signal output
off
off
off
No supply voltage
Turn on power supply
Measuring signal unstable
lid solid
green
lid solid
green
on
Gauge contaminated
Replace ionization chamber or
measuring chamber
Signal output does not drop
under below 10 V
lid solid
green
blinking
green
off
Gas discharge has not
ignited.
Wait, until the gas discharge has
ignited (= 5 minutes at a
pressure of 7.6 X 10
-10
Torr)
Signal output continually
> 5.6 V
lid solid
green
off
off
Pirani zero point shift
Perform a Pirani HV adjustment
via ADJ button
Signal output continually
> 9.5 V
lid solid
red
blinking
red
off
off
off
off
Pirani defective
EEPROM error.
Replace the measuring chamber
Switch the gauge off and on
again after 5 s
Replace the gauge
Signal continually at approx.
3.8 x 10
-5
Torr
lid solid
green
lid solid
green
on
Measuring chamber
severely contaminated
Replace the measuring chamber
