Carbon Monoxide Alarm User Manual

Page 44
Appendix F PhD
2
sensor ranges
The following tables display the ranges for currently available sensors for use in the PhD
2
. Nominal range
values indicate the gas-level range which the PhD
2
can detect over extended periods of operation. “Max
overload” values indicate the highest instantaneous reading that the PhD
2
will be able to attain for a given
sensor type.
Sensor Type Nominal range Max overload
Oxygen 0-25% atmosphere 30%
LEL 0-100% of limit 150%
Toxic Sensor Type Nominal range (PPM) Max overload
CO 0-1000 2000
H2S 0-50 125
H2S (extended range) 200 580
SO2 0-100 500
CL2 0-6 6
NO2 0-6 6
NO 0-100 385
HCN 0-100 200
HCl 0-100 200
NH3 0-50 200
TOX 0-1000* 2000*
*Ranges indicate CO levels for a broad-range TOX 1 sensor calibrated with CO