Detection Ranges And Alarm Levels; Sensor Overload - Honeywell E3 Point Manuel D'utilisation

Specifications

Sensor Overload

Detection Ranges and Alarm Levels

Gas Detected
CO Carbon monoxide
H S Hydrogen sulfide
2
NO Nitrogen dioxide
2
O Oxygen
2
COMB Combustibles
Maximum Overload is the cell exposure to gas concentration that may
result in permanent damage to the cell.
Sensor Overload
• Sensor overload occurs whenever the gas concentration reading
is higher than the full scale value, no matter how high the gas
concentration is.
• Overload Warning state is latched when true. It stays activated
indefinitely and is independent of gas concentration reading.
• To unlatch Overload Warning, hold
8 seconds.
• When Overload Warning is set and the buzzer is deactivated,
the buzzer will beep for 1 second every 10 minutes.
• The LCD displays
set.
• On network units like 301C systems, the Overload Warning
states for the E
when on a BACnet building automation system. Overload
warning states are available through the reliability property of
the sensor analog input object (AI0).
• The LED blinks twice per second during overload, and once per
second under normal conditions.
28
Range Alarm A
0-250 ppm 25 ppm
0-50 ppm 10 ppm
0-10 ppm 0.7 ppm
0-25 %vol 19.5 %vol.
0-100 %LEL 25 %LEL
OVERLOAD whenever Overload Warning is
Point are available through warning flag #Z
3
Alarm B Alarm C
200 ppm 225 ppm
15 ppm 20 ppm
2 ppm 9 ppm
22 %vol. 22.5 %vol
50 %LEL 90 %LEL
ESC for at least
E Point Network Gas Monitor User Manual
3
Maximum
Overload
500 ppm
150 ppm
1000 ppm
100 %vol
100 %LEL