Cirrus SP101013.111 – 10 October 2012
MKS Instruments UK Ltd., Spectra Products
77
Adjust the “Set Point” control to give a control voltage of 670mV (5mT)
After a short time, the air peak should begin to rise as the gauge opens. Once fully open, check the
voltmeter for a 670mV output of the Baratron.
Check page 35 of the Operator Manual which describes the process of fine-tuning the gauge using the
“Proportional Gain” and “Reset Time” adjustments.
Once correctly set-up, a sample line with a HIGHER pressure should be selected and the voltmeter
checked for a 670mV output from the Baratron. If the reading from the voltmeter is higher or lower
than 670mV, give the gauge more time to settle, re-check the zero point and repeat the set-up
procedure.
