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Coster RGS 128 Quick Start Manual

Domestic microprocessor- based selective detectors with relay output
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DOMESTIC MICROPROCESSOR- BASED
SELECTIVE DETECTORS WITH RELAY OUTPUT
RGS 128 - 228
• Conform to standards:
– CEI EN 50194 and CEI EN 50244 for combustible gases
– CEI EN 50291 and CEI EN 50292 for carbon monoxide (CO)
• Supplied with internal sensor for methane or for LPG
• Option of connecting 1 or 2 remote sensors for methane, LPG or CO
• SPDT relay output
• LEDs for power, pre-alarm, alarm and sensor fault
• Power supply : 230 V~ ; Protection : IP 42

1. APPLICATION

RGS gas detectors are designed to guarantee the safe use, in non-industrial premises, of domestic gas appliances
such as hobs, ovens, wall boilers .
They are able to monitor, by means of the internal sensor and one or two optional remote sensors, the
concentration in the air of the commonest combustible gases: methane, LPG-propane.
By means of a special remote sensor they can also control the concentration in the air of carbon monoxide (CO).
The relay output can control a gas shut-off valve, a fan, etc
Code
Internal
RGS 128
Methane
RGS 228
LPG (Propane)
REMOTE SENSORS
Code
SRS 158
Methane
SRS 258
LPG (Propane)
SRS 358
CO (Carbon monoxide)

2. TYPICAL INSTALLATION

We reserve the right to make changes without notice
COSTER
Eng.
sensor
threshold
Gas
Power supply
230 Volt~
230 Volt~
230 Volt~
G 221 - RGS 128-228 Eng.
Alarm
Pre-alarm
threshold
0.80 %
0.35 %
Protection
IP 42
IP 42
IP 42
25.11.08 MZ REV. 01
Suitable
external sensor
0.50 %
SRS 158/258/358
0.20 %
SRS 158/258/358
Maximum connection length
4x1mm
2
50 m
50 m
50 m
G 221
25.11.08 MZ
REV. 01
4x1.5mm
2
75 m
75 m
75 m
1

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Summary of Contents for Coster RGS 128

  • Page 1 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 G 221 DOMESTIC MICROPROCESSOR- BASED 25.11.08 MZ REV. 01 SELECTIVE DETECTORS WITH RELAY OUTPUT RGS 128 - 228 Eng. • Conform to standards: – CEI EN 50194 and CEI EN 50244 for combustible gases –...
  • Page 2 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 3. TECHNICAL DATA Power supply 230 V ~ ± 10% Sensing element: Frequency 50…60 Hz – Methane (RGS 128, SRS 158): Consumption 2,5 VA semiconductor (Figaro TGS 2611-B00) Protection IP 42 –...
  • Page 3 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 7. INSTALLATION The gas detector must be installed in the space in which a gas escape is most likely to occur e.g. the kitchen with its hobs, oven, wall boiler.
  • Page 4 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 9. WIRING DIAGRAMS GENERAL LAYOUT The relay is shown with the detector in the "detector not powered" condition B1 – Internal sensor of detector B2-B3 – SRS… remote sensors M –...
  • Page 5 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 11. OPERATION Switching on As soon as it is powered, the detector does not received alarms, and so does not signal them, for the first two mi- nutes of operation.
  • Page 6 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 Output control The output control consists of the SPDT switch of a relay which can be used in two ways: – normally de-energised: under normal operating conditions (detector powered but not in alarm state), the relay is de- energised and remains in this state even if the detector is not powered and becomes energised only in the presence of an alarm signal.
  • Page 7 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 13. WARNING: IN THE EVENT OF ALARM Combustible gas (Methane, LPG-Propane) First of all, remember that most people are able to notice the presence of combustible gases (methane and LPG- propane) in the air, even at concentrations below the alarm level established for the detector, and so the smell of gas does not indicate that the detector is faulty and does not necessarily indicate a danger situation.
  • Page 8 COSTER G 221 - RGS 128-228 Eng. 25.11.08 MZ REV. 01 Amendment to data sheet Date Revision No. Page Section Amendment description 22.12.05 MZ 9.WIRING DIAGRAM Amendment on WIRING DIAGRAM 25.11.08 MZ 11.4 Pre-alarm and alarm thresholds for carbon monoxide (CO) Adjust CO concentration value Head Office &...

This manual is also suitable for:

Rgs 228Srs 158Srs 258Srs 358

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