Ametek WDG-V, Руководство пользователя

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PN 9000-133-VE, Rev U
Specification Description
Calibration Gas
Requirements
Use calibration gases @ 10 PSIG, 3.0 SCFH. Use certified mixtures
only.
O
2
Span Gas: Instrument air or from 1.0–100 % O
2
,
balance N
2
(typically, 2 % O
2
, balance
N
2
).
O
2
, Combustibles, and CH
4
Zero Gas:
2 % O
2
or from 0.1–10 % O
2
, balance N
2
.
Combustibles Span Gas (WDG-VC and WDG-VCM models only):
60–80 % of the selected combustibles
recorder output range in equal mixtures
of CO + H
2
, 3–4 % O
2
, balance N
2
.
CH
4
Span Gas (WDG-VM, WDG-VCM models only):
2 % CH
4
, 8–10 % O
2
, balance N
2
.
For example, using a 2000 PPM Combustibles range, span with a
mix of 800 PPM CO, 800 PPM H
2
, 3–4 % O
2
, balance N
2
.
NOTES
1. All static performance characteristics are with operating variables constant.
2. System accuracy referenced to 0.1 to 10 % calibrated range.
3. Response is to calibration gas.
4. Specifications for combustibles and methane apply only to those versions equipped for
measuring these gases.
Specifications
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