Coster RGM 122 Manual

DOMESTIC GAS DETECTORS WITH
MICROPROCESSOR AND RELAY OUTPUT
RGM 122 - 128 - 222 - 228
• Power supply 220/240 V ac. or 12 V dc. Protection IP 42
• Includes internal monitoring sensor for methane (natural gas) or propane - LPG
• Possibility of connecting 1or 2 remote sensors for methane (natural gas), propane - LPG or carbon monoxide
• SPDT output relay
• Alarm threshold below 25% of LEL (lower explosive limit)
• Pre-alarm threshold about 60% of alarm threshold
• Pre-alarm, alarm and sensor fault LEDs
• Construction and operation according to BSI 7348, EN 50054 and CEI-UNI/ CIG 70028
APPLICATION
RGM gas detectors are designed to guarantee the safe use, in
non-industrial premises, of domestic gas appliances such as :
cookers, boilers and calorifiers.
They are able to monitor, by means of an internal sensor, and,
optionally, of one or two remote sensors, the concentration in the
MODELS
Code Power supply
RGM 128 220/240 V ac
12 V dc
RGM 122
RGM 228 220/240 V ac
RGM 222 12 V dc
MONITORING SENSORS
Code Power supply
SRC 158 220/240 V ac
SRC 152 12 V dc
SRC 258 220/240 V ac
SRC 252 12 V dc
220/240 V ac
SRC 358
SRC 352 12 V dc
TYPICAL INSTALLATION
fig. 1
Valve
We reserve the right to make changes without notice
C1 Eng.
Type of gas
methane (natural gas)
methane (natural gas)
propane - LPG
propane - LPG
Type of gas
methane (natural gas)
methane (natural gas)
propane - LPG
propane - LPG
carbon monoxide
carbon monoxide
Methane (natural gas)
CO
LPG
TO SEE A SUITABLE REPLACEMENT PRODUCT
DISCONTINUED PRODUCT
air of the most common types of combustible gas such as : methane
(natural gas), propane - LPG.
By means of remote sensors it is possible to monitor also the
concentration of carbon monoxide.
The output relay can control a gas shut-off valve, an aeration
fan, etc.
Internal Output
sensor
TGS 842 SPDT relay
TGS 842 SPDT relay
TGS 813 SPDT relay
TGS 813 SPDT relay
Internal % gas at
sensor 2.5 V. dc
TGS 842 0.8 %
TGS 842 0.8 %
TGS 813 0.35 %
TGS 813 0.35 %
TGS 812 0.05 %
TGS 812 0.05 %
G 220 - RGM 12..-22..
C1 Eng. 09.95
G 220
Remote sensors
SRC
158 – 258 – 358
152 – 252 – 352
158 – 258 – 358
152 – 252 – 352
Length connections
2 2
4x1mm 4x1.5mm
50 mt. 75 mt.
50 mt. 75 mt.
50 mt. 75 mt.
50 mt. 75 mt.
50 mt. 75 mt.
50 mt. 75 mt.
09.95
Data
sheet
N 811
N 811
N 811
N 811
N 811
N 811
1