รหัสสินค้า : E2611-LEL

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E2611-LEL Combustible Gases Detector

Features

• Stable long-life metal-oxide sensor
• Range 0...100% LEL
• Resolution 0,1% LEL
• Two SPST relays
• 2 × 4-20 mA or 0-10 V, RS485

Description

Combustible gases detector-transmitter E2611-LEL is a member of new PluraSens® family of multifunctional measurement instruments.

Applications include underground parkings, boiler houses, battery charging rooms, kitchens, and other confined spaces, where potentially explosive concentration of combustible gases can accumulate.

The instrument utilises a fully calibrated metal-oxide semiconductor gas sensor with excellent repeatability, stability and long lifetime.

Two relays with closing contact may be used for remote signalling or ventilation control. Two alarm set-points are user settable. Internal buzzer gives sound alarms.

Two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol can be used to connect the detector to safety or building automation systems.

Technical Data

Detected gases hydrogen, methane, acetylene, propane, butane

Default calibration methane CH4

Sensor type metal-oxide semiconductor

Sampling method diffusion

Detection range 0...100% LEL

Resolution 0,1% LEL

Sensor lifetime > 5 years

Power supply 12...36 VDC (default),

24 VAC or 230 VAC as options

Digital interface RS485, Modbus RTU protocol

Analog outputs 2 × 4-20 mA / 0-10 V, user settable

Output relays 2 × SPST relays (closing contact),

250 VAC / 30 VDC, 5 A max

Alarms buzzer 85 dB

Default alarm set-points 20% LEL / 50% LEL CH4

Enclosure light-grey ABS plastic with ventilation slots, IP20

Dimensions H85 × W85 × D37 mm

Operating conditions -40...+70 °C, 0...95 %RH