Installation manual

44
The Salwico GD range of gas detectors is used to monitor areas where ammable, oxy-
gen deciency and toxic gases may pose a hazard environment. The Salwico GD uses a
number of sensor technologies including catalytic bead, electrochemical cell and Non-
dispersed (NDIR). Salwico GD has a long list of user friendly features:
• One hand operation for sensor replacement
• Clear multi-function backlit display
• Tri-colour backlight display for status indication
• 4-20 mA signal output
• 3 Switch relays
• Modbus
• EX-d approved
The Salwico GD range gas detectors are available in the following variants.
Salwico GD CAT HC 0-100%LEL HYDROCARBON, CATALYTIC, ALUMINIUM AL-
LOY, M20 ENTRY
Salwico GD NDIR CH4 0-100%LEL METHANE, NDIR, ALUMINIUM ALLOY; M20
ENTRY
Salwico GD NDIR C3H8 0-100%LEL PROPANE, NDIR, ALUMINIUM ALLOY, M20
ENTRY
Salwico GD NDIR CO2 0-2%VOL CARBON DIOXIDE, NDIR, ALUMINIUM ALLOY,
M20 ENTRY
Salwico GD EC O2 0-25%VOL OXYGEN, ELECTRO CHEMICAL, ALUMINIUM AL-
LOY, M20 ENTRY
Salwico GD EC H2S 0-50 PPM HYDROGEN SULPHIDE, ELECTRO CHEMICAL, ALU-
MINIUM ALLOY
Salwico GD EC CO 0-250 PPM CARBON MONOXIDE, ELECTRO CHEMICAL, ALU-
MINIUM ALLOY
Salwico GD EC H2 0-1000 PPM HYDROGEN, ELECTRO CHEMICAL, ALUMINIUM
ALLOY
5200260-01A
5200260-02A
5200260-03A
5200260-04A
5200261-01A
5200262-01A
5200262-02A
5200262-03A
SALWICO GD
Gas Detecors
The Salwico GD TRUE IR gas detector is a point detector for gas concentration moni-
toring potentially hazardous environment. The Salwico GD TRUE IR is based on infrared
absorption. Solid state design improves reliability, long-term stability and accuracy in
continuous measurement of gas concentrations in ambient air. Compared with catalytic
sensors the Salwico GD TRUE IR has the following advantages:
• Proven high reliability and long term stability results in low test frequency and no
calibration cost. • Automatic self-test • Failure will not give gas alarm • Presence of
oxygen is not required during equipment life time • Immunity to poisoning from H2S,
silicone and other agents • No saturation effects from high gas concentrations • The
gas ow rate has no inuence on accuracy • Several different mounting possibilities
Special junction boxes or duct mounting brackets are available upon request.
5200138-00A
5200138-01A
SALWICO GD WH TRUE IR
The Salwico true IR hart gas detectors are available in the following variants.
Salwico GD WH TRUE IR C3H8
Salwico GD WH TRUE IR CH4
Salwico Gas Detection System