Ametek Thermox Series 2000 WDG-IVC - Page 29

Specications | 2-5
Calibration Gas Requirements for Hot-Wire Type Combustibles Detector
Use calibration gases @ 10 PSIG, 1.5 SCFH (0.70 kg/cm
2
, 0.7 L/min.)
O
2
Span Gas: Air or from 1.0 to 100% O
2
, balance N
2
O
2
Comb &
CH4 Zero Gases:
From 0.1 to 10% O
2
, balance N
2
Comb Span Gas: 60 to 80% (ppm ranges) or 40 to 60% (% ranges) of the selected
comb. recorder output range in certied mixtures of
CO + H
2
, 3-4% O
2
, balance N
2
.
CH
4
Span Gas 2% CH
4
, 8% to 10% O
2
, balance N
2
Calibration Gas Requirements for RTD Type Combustibles Detector
Use calibration gases @ 10 PSIG, 1.5 SCFH (0.70 kg/cm
2
, 0.7 L/min.)
O
2
Span Gas: Air or from 1.0 to 100% O
2
, balance N
2
Comb & CH4
Span Gases:
From 0.1 to 10% O
2
, balance N
2
Comb Span Gas: Use a combined combustibles and methane span gas containing 60 to
80% of the full scale combustibles operating range in certied mixtures
of CO (or CO + H
2
), 2% CH
4
, 8 to 10% O
2
, balance N
2.
System Compliance
EMC Compliance:
Safety Compliance:
2004/108/EC
73/23/EEC
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 (without ame arrestors).