รหัสสินค้า : E2648-NH3-E

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E2648-NH3-E Ammonia detector-transmitter

Features

• Stable long-life electrochemical sensor
• Range 0...100 / 0...300 / 0...1000 / 0...5 000 ppm NH3
• Resolution 1 ppm NH3
• Two SPST relays option
• 2 × 4-20 mA or 0-10 V, RS485

Description

Ammonia detector-transmitter E2648-NH3-E is a member of new PluraSens® family of multifunctional measurement instruments.

The instrument is intended for leakage control in refrigeration facilities, warehouses etc. It is not recommended to use the detector in spaces with constantly high ammonia concentration such as cattle, pig and poultry livestock houses, since it shortens the sensor lifetime.  

The instrument utilises a fully calibrated and temperature compensated electrochemical gas sensor with excellent repeatability, stability and long lifetime.

Two relays with closing contact (optional) may be used for remote signalling or concentration control. Two alarm set-points are user settable.

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

Calibration ammonia NH3

Sensor type electrochemical

Sampling method diffusion

Detection range 0...100 ppm NH3

0...300 ppm NH3

0...1000 ppm NH3

0...5 000 ppm NH3

up to 10000 ppm on request

Resolution 1 ppm NH3

Sensor lifetime > 2 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 (option) 2 × SPST relays (closing contact),

250 VAC / 30 VDC, 5 A max

Default alarm set-points 25 ppm / 35 ppm NH3

Enclosure die-cast aluminium, wall mount, IP66

Dimensions H120 × W125 × D57 mm

Operating conditions -40...+50 °C, -30...+50°C (for 0...5 000 ppm),

15...90 %RH