Setting the zero reading, Setting the response reading, Screw the regulator into the calibration cylinder – RKI Instruments Pioneer 4W User Manual
Page 72
Combustilbe Gas Transmitter • 26
Pioneer Operator’s Manual (PRELIMINARY)
8.
Verify that the Zero Proceed line is flashing [or Zero (Oxygen Span) if applicable],
then press the ENTER button to continue. If the Zero Proceed line is not flashing,
press the UP/YES button, then press the ENTER button.
The Fresh Air screen appears. The readings displayed on the Fresh Air screen are the
current gas readings. The asterisk (*) to the right of each reading indicates that you
cannot adjust this reading at the Pioneer.
CAUTION:
Do not press the ENTER button at this time.
Setting the Zero Reading
1.
Screw the regulator into the zero air calibration cylinder.
2.
When the reading on the voltmeter stabilizes, verify a reading of 100 mV (±2 mV).
If necessary, use the zero potentiometer on the amplifier to adjust the reading to
100 mV (±2 mV).
3.
Unscrew the regulator from the zero air calibration cylinder.
Leave the sample tubing connected to the regulator and the calibration cup.
Setting the Response Reading
1.
Screw the regulator into the calibration cylinder.
2.
When the reading on the voltmeter stabilizes, verify that the reading matches the
response reading (±2 mV) you determined earlier. If necessary, use the span
potentiometer on the amplifier to adjust the reading to match the correct response
reading.
3.
Unscrew the regulator from the calibration cylinder.
4.
Remove the voltmeter leads from the amplifier test points.
C H 1
C
C
C
H
H
H
2
3
4
E N T E R
t o
F r e s h
A i r
A d j u s t
X X X
0
*
0
0
*
*