Ampcontrol Gasguard 2 GG2 DETECTOR - Electrochemical CO; Table 12: Typical Carbon Monoxide Cross-Sensitivity

Ampcontrol Pty Ltd – ABN 28 000 915 542
GG2 DETECTOR USER MANUAL
GG2B011 Version 3 – June/19
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 29 of 39
APPROVED FOR EXTERNAL DISTRIBUTION
– PROPERTY OF AMPCONTROL PTY LTD
– NOT TO BE
REPRODUCED IN PART
7.2 Electrochemical CO
Electrical
Supply Voltage
10 - 16.5VDC
Max power
Consumption
0.1W
Mechanical and Environment
Dimensions (H x W x D)
86.5mm x 85mm x 93mm
Weight
1kg
IP Rating
IP54
Humidity Range
15% to 90% r.h. non-condensing
Temperature Range
-20˚C to + 40˚C
Pressure Range
±20kPa
Response Time (t90)
via diffusion
<60s
Warm-up Time
<5 mins (60 seconds typical)
Stabilization time
(for calibration
adjustments)
3 mins
Sensor Unit
Detection Method
Electrochemical
Calibrated Range
0 - 50 ppm
0 - 100 ppm
Accuracy
±3 ppm over the range 0 ppm to 29 ppm
±6 ppm over the range 30 ppm to 100 ppm
Drift
10% per 6 months
Repeatability
1% reading
Sensing Element Life
>24 months
Resolution
0.01 ppm
1
Certification
IECEx
IECEx TRA 16.0020X
DPI
MDR 0001030 GD
1
The output measurement resolution is consistent across all gas types and does not infer the accuracy of
the gas type
Table 10: Typical Carbon Monoxide Cross-Sensitivity
Test Gas Mixture
Instrument variance from
Standard Test Gas
50ppm CO + 5% Methane in Air
±5 ppm CO
50ppm CO + 0.01% Hydrogen in Air
±5 ppm CO
50ppm CO + 10% Oxygen in Nitrogen
±5 ppm CO
50ppm CO + 10 ppm Hydrogen Sulphide in Air
±5 ppm CO
50ppm CO + 5% Carbon Dioxide in Air
±5 ppm CO
50ppm CO + 5% Nitric Oxide in Air
±5 ppm CO
50ppm CO + 5% Nitrogen Dioxide in Air
±5 ppm CO