PN 9000-133-VE, Rev U
Calibration/Aspirator Air
Required Calibration Gases and Tubing
See Specifications for information on calibration gases. The span gas
is the high gas; the zero gas the low gas.
The span gas must be 10 times greater than the zero gas. For example, if the
zero gas is 1 % O
2
, the span gas must be 10 % O
2
or higher.
• O
2
Span Gas
Instrument air (20.9 %) or from 1.0–100 % O
2
.
• O
2
Zero Gas
From 0.1–10 % O
2
, balance N
2
• Combustibles Span Gas
If using a WDG-VC analyzer, you must also have a combustibles span gas:
- 60 to 80 % of the full combustibles operating range in certified
mixtures of CO, with an equal amount of O
2
, balance N
2
.
For example, if using an operating range of 0 to 2000 PPM combus-
tibles, use 1200 PPM CO, 1 to 2 % O
2
, balance N
2
.
Methane Span Gas
If using a WDG-VCM analyzer, you also must have a methane span gas:
• 2 % CH
4
, 8 to 10 % O
2
, balance N
2
.
2-20 | Thermox
®
WDG-V / VC / VCM / VM
Содержание WDG-V
Страница 1: ...WDG V WDG VC WDG VCM WDG VM Combustion Analyzer USER MANUAL PN 9000 133 VE Rev U 5000 017 PI rA...
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Страница 60: ...PN 9000 133 VE Rev U Figure 2 16 RCU Connections 2 34 Thermox WDG V VC VCM VM...
Страница 93: ...PN 9000 133 VE Rev U Figure 3 4 Thermocouple replacement Maintenance and Troubleshooting 3 19...
Страница 97: ...PN 9000 133 VE Rev U Figure 3 6 Flow sensor replacement Maintenance and Troubleshooting 3 23...
Страница 101: ...PN 9000 133 VE Rev U Figure 3 9 Combustibles Block Heater Replacement Maintenance and Troubleshooting 3 27...
Страница 103: ...PN 9000 133 VE Rev U Figure 3 10 Sensor board removal Maintenance and Troubleshooting 3 29...
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