E2658-NH3-P

Flameproof Ammonia Detector
E2658-NH3-P
Features
  • Suitable for ATEX Zones 2 and 22
  • Stable long-life pellistor (catalytic bead) sensor
  • Range 0...15% vol. (0…100% LEL)
  • Resolution 0.1% vol. or 1% LEL
  • Two SPST relays option
  • 2 × 4-20 mA or 0-10 V, RS485
  • Wall mount flameproof metal enclosure
Description

E2658 series is a new line of flameproof detectors and transmitters intended for use in ATEX Zones 2 and 22.

The instruments are based on the PluraSens® multifunctional platform.

One of the most common applications is detection of explosive Ammonia concentrations in refrigeration machinery rooms.

Ammonia detector-transmitter E2658-NH3-P utilizes a fully calibrated and temperature compensated pellistor (catalytic) gas sensor with excellent repeatability, stability and long lifetime.

Two relays with closing contact (optional) may be used for remote signaling 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
Сalibration Ammonia NH3
Sensor type Pellistor (catalytic bead)
Sampling method Diffusion
Detection range 0...15% vol. (0…100% LEL)
Resolution 0.1% vol. or 1% LEL
Response time T90 ≤10 s
Accuracy ± 2% LEL
Sensor lifetime > 3 years
Power supply 11...30 VDC, 24 VAC or 90...265 VAC
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
Enclosure Die-cast aluminum, wall mount, IP66
Dimensions H120 × W125 × D57 mm
Operating conditions -20...+60 °C, 0...95 %RH
Safe areas and ATEX Zones 2 and 22


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