Vetus GD1000 Manual De Instalación Y Usuario página 24

6 Technical details
Power supply
Power supply limits
Current taken Intermittent
Current taken Continuous (per sensor)
Maximum current on outputs for fan, gas
valve and external alarm
Length of sensor cable
Limits for the detection of propane (C
Detection of gases other than propane and butane
- Methane:
- Hydrogen:
The following gas concentrations and time constants are defined for the detection of CO (car-
bon monoxide):
CO (ppm)
400
300
200
100
80
60
40
30
24
100105.02
H
3 4
Warning : 3 % of the lower explosion limit (LEL) (390 ppm)
Alarm : 6 % of the upper explosion limit (LEL) (780 ppm)
Alarm : 3.4 % of the lower explosion limit (LEL) (1500 ppm)
Alarm : 5 % of the lower explosion limit (LEL) (2000 ppm)
1
20 40
1 SAFE
2 WARNING CO
3 ALARM CO
: 12 Volt or 24 Volt direct current
: 8 to 30 Volt
: 35 mA average
: 100 mA
: 1A
: 5 metres
) and butane (C H )
4 10
2
60 100
3
200 400
t (min)
Gasdetector GD1000
600