รหัสสินค้า : E2638-NH3-P

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E2638-NH3-P Ammonia transmitter

Features

• Stable long-life pellistor 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
• Attached or remote sensor
• LCD indicator option
• Easy to install IP65 enclosure

Description

Ammonia transmitter E2618-NH3-P is a member of the PluraSens® family of multifunctional measurement instruments.

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

The instrument 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

Calibration 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

Sensor lifetime > 3 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

Enclosure grey ABS plastic, wall mount, IP65

Dimensions H90 × W145 × D55 mm

Operating conditions -10...+50 °C, 0...95% RH