FRG-700 Inverted Magnetron Pirani Gauge
18
r
While depressing the pin with the cylindrical pin, adjust the <HV>
potentiometer …
… to 4.20 V
or
… to 5×10
-4
mbar.
After that, turn the potentiometer
counter-clockwise by 1/3 of a turn.
s
Vent the gauge with air or nitrogen to atmospheric pressure, and wait at
least 10 minutes.
t
Turn the nameplate clockwise until the mechanical stop is reached.
u
Using the 1.5 mm screwdriver, adjust the <ATM> potentiometer …
… to 8.60 V
or
… to 1×10
3
mbar.
v
Turn the nameplate back to its original position (it catches).
