EsiWelma s.r.l.
rev. 02 of 01-09-10 / pg. 4
___________________________________________________________________________________________
Power supply (see available models)
230Vac
±
10% or 12Vac/dc
±
10% or 12…24Vac/dc
Frequency
50/60Hz
Consumption
2 VA
Command outputs
SPDT relay - capacity of the contact 250Vac 5(3)A
1
st
and 2
nd
alarm threshold
100 and 300ppm
(1)
of Carbon Monoxide
Threshold limit value
Between 12m and 12s at 100ppm and 300ppm, respectively
Operational lifetime of a detector
5 years from installation
Max detectable area
approx. 40 m
2
Visual warnings
Green LED (power is on)
Yellow LED (warm-up / sensor fail)
Red LED (gas alarm)
Audible alarms:
Piezoelectric buzzer 85dB at 1m
Protection Rating
IP42 when correctly installed
Product conformity standard
EMC Electromagnetic Compatibility
Low voltage (LVD)
UNI CEI 70032
EMC 2004/108/EC – EN50270
LV 2006/95/EC – EN60669-1
Operational room temperature
-10...+40 °C (storage –20…...+70 °C)
Ambient humidity allowed:
30... 90% RH (storage 0...+95% RH) (non condensing)
Dimensions
For installation in 503 type recessed mounting box
•
142 x 100 x 72mm with ESN.KW wall-mounting adapter
•
142 x 120 x 100mm with ESN.KT/KC table-top adapter
Enclosure
ABS/PC UL94-V0 flame retardant
(1)
ppm =
parts per million of concentration of gas in the air.
___________________________________________________________________________________________
Wiring diagrams:
Example a): - Command of a solenoid valve (Normally Open); in this mode, when the alarm threshold is ex-
ceeded the solenoid valve will close and therefore the gas supply will be cut-off.
Example b): - Command of a solenoid valve (Normally Closed) and of visual and audible alarms; in this
mode, the solenoid valve will close and therefore the gas supply will be cut-off: when the alarm
threshold is exceeded, if there is a power failure and if the actual solenoid valve is discon-
nected.
___________________________________________________________________________________________
To be filled in by Installer
Installer's stamp
Installation site
……………………………………………………………….
Product order number
……………………………………………………………….
Part number
……………………………………………………………….
Installation date
……………………………………………………………….
___________________________________________________________________________________________
Technical
specifications
Connection
diagrams
Installation
data
230Vac or 12Vac/dc or 12…24Vac/dc
4
5
a)
ESN.I.O..
2
1
3
NA
230Vac or 12Vac/dc or 12…24Vac/dc
4
5
b)
ESN.I.O..
2
1
3
NC
