PR Electronics 2914 – 2-Wire Room Temperature Transmitter

Features

  • 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
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PR Electronics 2914 – 2-Wire Room Temperature Transmitter

Application

  • Utilization includes electronic temperature measurement in various environments such as control rooms, offices, heating plants, factories, living rooms, and similar dry settings.
  • Ideal for use as a transmitter in conjunction with controllers, trip amplifiers, displays, or advanced SCADA systems.

Technical Features:

  • Incorporates a precision Pt100 sensor with low mass for rapid response times.
  • The 2-wire output signal ranges from 4 to 20 mA, directly proportional and linear to the temperature sensed.
  • Optional reverse output signal of 20 to 4 mA available upon request.
  • Offers multiple sensor error detection configurations.
  • Provides protection against polarity reversal.
  • Can be wall-mounted using two screws at the base of the enclosure.
  • Offers options for visible or concealed cable access.

Specification

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<sup<2< sup=””></sup<2<>
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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