Communication; Range And Alarm Levels - Honeywell 301 Serie Mode D'emploi

Communication

Please see wiring diagram on page 11 and specifications in Appendix E. Ensure
wiring size, lengths and number of devices daisy chained together comply with the
instructions. Do not use T-Tap configurations for the communication connections.
Use shielded cable for all communication wiring and terminate the shield to a solid
ground on a single end only. Follow the wiring diagram to ensure no crosses be-
tween A and B communication channels. Keep all devices and wire runs away from
mercury vapor lights, variable speed drives, radio repeaters or other RFI sources.
4-20mA loops will require a power source, see Appendix E for specifics.

Range and Alarm Levels

The following alarms are factory set in accordance with OSHA and other regula-
tions. Change only in accordance with local codes. Always repeat commissioning
and bump testing after changing alarm settings.
Gas Detected
CL2 Chlorine
Carbon
CO
monoxide*
Hydrogen
H2S
sulfide
Nitrogen
NO2
dioxide
O2 Oxygen
SO2 Sulfur dioxide 0-10 ppm
R-123 Refrigerant
R-11 Refrigerant
R114 Refrigerant
R-22 Refrigerant
R-125 Refrigerant
R134A Refrigerant
15
Range Alarm A
0-15 ppm 0.5 ppm
25 ±2
0-250 ppm
ppm
0-50 ppm 10 ppm
0-10 ppm 0.72 ppm
19.5%
0-25% Vol.
Vol.
2 ppm
0-1000 ppm 50 ppm
0-1000 ppm 250 ppm
0-1000 ppm 250 ppm
0-1000 ppm 250 ppm
0-1000 ppm 250 ppm
0-1000 ppm 250 ppm
Alarm B Alarm C
1 ppm 13.5 ppm
100 ±5 200 ±10
ppm ppm
15 ppm 45 ppm
2 ppm 9 ppm
22% Vol. 22.5% Vol.
5 ppm 9 ppm
500 ppm 900 ppm
500 ppm 900 ppm
500 ppm 900 ppm
500 ppm 900 ppm
500 ppm 900 ppm
500 ppm 900 ppm