1-4 | Thermox WDG-V / VC / VCM with Blow Back
Sensor : WDG-VCM
Output Range From 0-1% to 0-100%
Oxygen
Combustibles
Methane
From 0-1% to 0-100%
From 0-2,000 ppm to 0-10,000 ppm
0 to 5%
Accuracy
Oxygen ± 0.75% of measured value or ± 0.05% oxygen, whichever is greater
Combustibles ± 2% of full scale output range
Methane ±5% of full scale output range
Response O2 90% of a process step change < 6 secs.
Drift
< 0.1% of cell output per month (< 0.005% O
2
per month with 2% O
2
applied)
Aspirator Air
Requirements
≈ 3 scfh (1.4 L/min) at 80 to 100 psig (5.63 to 7.04 kg/cm
2
)
Max. Flue Gas Temp / Probe Type / Lengths
1300°F (704°C)
1875°F (1024°C)
3000°F (1649°C)
316 SS
310 SS
Hexoloy
®
36” - 108” (91 cm - 271 cm)
36” - 108” (91 cm - 271 cm)
24” - 72” (60 cm-182 cm)
Max. Sample
Dewpoint
392°F (200°C)
Sample Pressure ± 6 inch water gauge
Environment
Ambient Temp.:
-13°F to 149°F (-25°C to 65°C);
-5°F to 140°F (-20°C to 60°C) with Div. 2 Option
Relative Humidity: 5% to 95%, non-condensing
Max. Altitude: 5000 meters
Enclosure
Hinged NEMA 3R, weather resistant, stainless steel. Optional hinged NEMA 4X (IP56), explo-
sion-proof, purged, Div II.
Power Requirements
115 VAC, ± 10%, 47-63 Hz, 950VA max. 230 VAC, ± 10%, 47-63 Hz, 950 VA max.
Calibration Gas Requirements for Combustibles Detector
Use calibration gases @ 10 PSIG, 3.0 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 certied 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
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).
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