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Connect a PC to the RS-232/RS-485 port of the analyzer and run the configurator soft-
5.
ware.
click on the software Setup tab to read the flow.
If the sample gas pressure is less than or equal to atmospheric pressure, open the meter-
6.
ing valve to full OPEN position. Turn the 3-way valve on the back of the analyzer to the
Sample Gas position. Adjust the vacuum control at the inlet of the vacuum generator until
desired flow rate is obtained on Status Tab of configurator software.
7.
if the sample gas pressure is greater than atmospheric pressure, close the metering
valve. Turn the 3-way valve on the back of the analyzer to the Sample Gas position. Turn
off the vacuum generator. Adjust the metering valve until desired flow rate is obtained on
Status Tab of configurator software.
Use stainless steel tubing that is free of oil and dirt yo deliver your calibration gases.
this prevents contamination that could affect proper calibration.
NOTE
3-8 | Dycor CG1100 Oxygen Analyzer
Calibration Gas Requirements
% O
Range Calibration Gases
2
Span Gas
From 1.0% to 100% o
(instrument air - 20.9% - recommended)
Zero Gas
From 0.1% to 10% o
PPM O
Range Calibration Gases
2
The span gas must be at least a factor of 10 higher in oxygen content
than the zero gas (for example, if zero gas is 10 PPM, the span gas must
be 100 PPM or higher).
Span Gas From 10 PPM to 1000 PPM.
Zero Gas
From 1 PPM to 100 PPM.
We recommend that the span gas be of a higher oxygen
content than the zero gas by a factor of 10 (for example, if
zero gas is 1.0%, span gas must be 10% or higher. If zero
NOTE
gas is .1%, span gas should be 1% or higher).
Mechanical Flow Meter
The mechanical flow meter is used to adjust the calibration gas bypass
flow rate of 2 scfh. The mechanical flow meter should have no flow ad-
justment valve.
, balance n
2
2
, balance n
(2% recommended)
2
2
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Troubleshooting
