Kane 9206 Quintox, Руководство пользователя

Страница: 65 / 72

65
NORMALISING READINGS
ppmn = initial reading in ppm multiplied by (21 minus the O
2norm
setting) and then divided
by (21 minus the actual O
2
reading)
mg/m
3
n = initial reading in mg/m
3
multiplied by (21 minus the O
2norm
setting) and then
divided by (21 minus the actual O
2
reading)
ONLY AN NO
2
SENSOR FITTED
When there is only an NO
2
sensor fitted the NOx function is disabled
NO
2
in mg/m
3
= NO
2
in ppm multiplied by 2.05
NORMALISING READINGS
ppmn = initial reading in ppm multiplied by (21 minus the O
2
norm setting) and then
divided by (21 minus the actual O
2
reading)
mg/m
3
n = initial reading in mg/m
3
multiplied by (21 minus the O
2
norm setting) and then
divided by (21 minus the actual O
2
reading)
HIGH CO PURGE OPERATION
If there is a requirement to measure CO to concentrations above 10,000ppm then a High
Purge module should be fitted (this comprises both a purge pump and a solenoid) in
addition to the IR triple gas bench.
The CO measurement reading uses the electrochemical sensor’s reading from 0 to
4000ppm and the IR gas module takes over at 4000ppm to instruments upper limit.
When the electrochemical sensor’s reading passes 5500ppm, the solenoid operates and
the high CO purge pump switches on and pumps fresh air across the electrochemical CO
sensor. When the IR gas module reading goes below 5500ppm, the solenoid is
deactivated and the high purge pump is stopped.