Items 0
2914
 

2914

 

2-wire room temperature transmitter

 

  • Room temperature measurement
  • Complete with sensor and transmitter
  • 4...20 mA output in 2-wire connection
  • Easy mounting
  • Measurement range 0...70°C
  • Supply 8...35 VDC
  1. Overview

  2. Technical details

  3. Accessories


Application

  • Electronic temperature measurement in for instance control rooms, offices, heating plants, factories, living rooms, and similar dry rooms.
  • Suitable as a transmitter for controllers, trip amplifiers, displays, or superior SCADA systems.

Technical characteristics

  • A precision Pt100 sensor with a small mass is mounted on the transmitter input thereby achieving a fast response time.
  • The 2-wire output signal of 4...20 mA is proportional and linear to the temperature value that influences the built-in sensor.
  • A reversed output signal of 20...4 mA may be ordered.
  • A number of different sensor error detection options may be ordered.
  • Protected against polarity reversal.
  • The bottom of the cabinet can be attached to a wall by two screws.
  • Visible or hidden cable access.

Manuals


Data sheet


Declaration of Conformity


EAC certificate


Environmental Conditions

Operating temperature 0°C to +70°C
Calibration temperature 20...28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP30

Mechanical specifications

Dimensions (HxWxD) 70 x 121 x 25 mm
Weight approx. 95 g
Wire size 1 x 1.5 mm

Common specifications

Supply

Supply voltage 8.0...35 VDC
Internal power dissipation 25 mW…0.8 W

Response time

Response time 10 s (@ 0.5 m/s)
Voltage drop 8.0 VDC
Warm-up time 5 min.
Signal / noise ratio Min. 60 dB
Accuracy Better than 0.3°C
Signal dynamics, input 17 bit
Signal dynamics, output 16 bit
Effect of supply voltage change < 0.005% of span / VDC
Temperature coefficient < ±0.01% of span / °C
Linearity error < 0.1% of span
EMC immunity influence < ±0.5%

Input specifications

Common input specifications

Max. offset 50% of max.°C

RTD input

Sensor current > 0.2 mA, < 0.4 mA
Measurement range 0...70°C
Min. measurement range 25°C (span)

Output specifications

Current output

Signal range 4…20 mA
Min. signal range 16 mA
Load (@ current output) ≤ (Vsupply - 8) / 0.023 [Ω]
Load stability ≤ 0.01% of span / 100 Ω
NAMUR NE43 Upscale/Downscale 23 mA / 3.5 mA

Common output specifications

Updating time 135 ms
*of span = of the presently selected range

Observed authority requirements

EMC 2014/30/EU
EAC TR-CU 020/2011
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