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Sensor Technologies · Measurement & Control InstrumentationSensortehnika · Mõõtevahendid · Kontrollseadmed

Catalogue 2007

E2606 Series Fixed Gas detectors 4.21

? Combustible and toxic gas and oxygen concentration control based on metal-oxide or electrochemical sensors? Diffusion, flow-through and remote sensor versions ? Visual and audible alarms, adjustable output relay ? Linearized analog output 4-20 mA ? RS485 Modbus RTU interface option for direct Fieldbus networkin g

Gas detectors E2606 are intended for air quality monitoring -control of combustible or toxic gas and oxygen concentration and prevention of gas leaks in confined spaces. Depending on version the gas detector E2606 uses eitheradvanced metal-oxide semiconductor or an electrochemical gassensor. Concentration of combustible (methane, butane, hydrogen, etc) or toxic (carbon monoxide, VOC, freons, ammonia,H2S etc) gases or oxygen deficiency can be measured.E2606 detectors may be used for prevention of gas leakages ingas boiler rooms, cellars, garages, kitchens, refrigerators, for ai

E2606

120 50

-RT

PG7
3/4" 58 SW27 Ø25 52

r

-D -F -R

quality control in HVAC automations, for carbon monoxide accumulation prevention near heating chambers, at car parks, cellars and other confined spaces. Oxygen detector is intendedfor providing human safety in storages, in confined and underground rooms and places in danger of oxygen extrusion byanother gas.4-20 mA analog output of the gas detector provides connection toa logger or a controller. RS485 interface with Modbus RTU protocol allows direct digital Fieldbus networking of up to 30detectors. Relay output enables directly to set off alarm siren or forced ventilation and to control the appropriate actuato

50 PG7
80 38 12 12 Ø25 SensorSensor PG9

r mechanism, eg to switch a industrial solenoid valve. Alarm setpoint shouldbe set lower than the lower explosive limit of detectable gas or incase of toxic gas lower than permissible limiting concentration according to application.In normal mode the instrument's LED is on. When gasconcentration excedes alarm level, LED starts blinking, internalbuzzer starts beeping and relay contacts change over. Theinstrument returns to normal mode when gas concentration drops below release level.Analog output 4-20 mA, linearized, adjustable output scale (ppm / %vol)Digital interface - RS485, Modbus RTU protocol - up to 32 addressed instruments in RS485 Fieldbus system Relay switching contacts, 230 V, 2 A Supply 230 VAC or 24 VDC Enclosure - grey ABS plastic 80×120×58 mm, protection class IP54 - operating conditions -20...+50 °C, 5...95 %RH - wall mount by four screwsVersions - sensor fixed on the enclosure, diffusion mode (-D) - flow-through version (-F) - remote sensor with 3 m cable, diffusion mode (-R, -RT)

2×Ø4
RS485 1 2 3 4 5 6 8 9 10 11 12
0123 Sensor ~230/+24 V~230/-24 V
4-20 mA R < 250 Ohm
L

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