Det-Tronics 505 Combustible Gas Detector Transmitter with Combustible Gas Sensor CGS - Manual (Page 8)

5 95-8472 3.1
CATALYTIC SENSOR
TEMPERATURE RANGE—
Operating: –67°F to +257°F (–55°C to +125°C).
Performance: –40°F to +167°F (–40°C to +75°C).
HUMIDITY RANGE—
0 to 99% RH, non-condensing.
RESPONSE TIME—
50% full scale in 3.8 seconds with 100% LFL applied, 5%
by volume.
90% full scale in 8.4 seconds with 100% LFL applied, 5%
by volume.
60% full scale in < 10 seconds with 100% methane by
volume in air (CSA flooding test).
RECOVERY TIME—
Less than 30 seconds after exposure to pure methane.
ACCURACY—
±3% LFL from 0 to 50% LFL,
±5% LFL from 51% to 100% LFL.
REPEATABILITY—
±1% LFL.
LONG TERM STABILITY—
Zero: < 1% LFL per month.
Span: < 1% LFL per month in clean air.
TEMPERATURE STABILITY—
< ±5% LFL: –13°F to +167°F (–25°C to +75°C).
< ±10% LFL: –40°F to –13°F (–40°C to –25°C).
TYPICAL SENSOR LIFE—
3 to 5 years, when environment is free of substances and
conditions known to be detrimental to catalytic sensing
elements.
STORAGE LIFE—
Indefinite if sensor is stored within the specified
temperature range and remains in unopened original
packaging.
CALIBRATION CYCLE—
30 days after initial calibration and every 90 days
thereafter, or as required by the application and
environment.
DIMENSIONS—
See Figure 5.
CERTIFICATION—
For complete approval details, refer to the apprpriate
Appendix:
Appendix A – FM
Appendix B – CSA
Appendix C – ATEX/CE
Appendix D – IECEx.
NOTE
Ensure sensor hazardous (classified) location
rating is applicable for the intended use.
2.0
(5.2)
1.5
(3.8)
1.7
(4.4)
3/4 INCH
STANDARD PIPE THREAD
OR M20
D1213
Figure 5—Dimensions of Sensor in Inches (Centimeters)
FM
APPROVED
® FM
APPROVED
®
FM
APPROVED
®