Signal Calculator – PR Electronics 2289

Features

  • Two analog inputs
  • Multiple functions
  • Front-programmable
  • 3-digit LED display
  • Version with a Pt100 input
  • Analog output
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Advanced features

  • Programmed via the user interface which consists of a 3-digit display and 3 function keys in the front panel.

Application

  • Operates as a PID controller with an analog or a Pt100 input.
  • Functions include a manual / automatic controller, an analog calculator with a scale function on both inputs, a samplehold transmitter, a peak-hold transmitter, a delay transmitter, a signal limiter, averaging of noisy signals, monitoring of a signal’s slope, or an analog multiplexer.

Technical characteristics

  • The A and B inputs can be programmed to receive current signals in the range 0…20 mA (eg. 4…20 mA), or voltage signals in the range 0…10 VDC.
  • Input A is a linearized Pt100 with a 3-wire connection. input B is an analog current / voltage input.
  • Digital inputs are jumper selectable NPN or PNP.
  • Analog standard current / voltage output of 0/4…20 mA / 0/2…10 VDC.
  • Both the input signals and the output signal can be inverted.
  • Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying. In environments with strong vibrations the PR 7002 can be mounted as an additional safety catch for system 2200 devices on the relay socket.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -20°C to +60°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP50
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 80.5 x 35.5 x 84.5 mm (D is without pins)
Weight approx. 130 g
COMMON SPECIFICATIONS
Supply
Supply voltage 19.2…28.8 VDC
Max. required power 2.7 W
Internal power dissipation 2.4 W
Response time
Response time < 60 ms
Signal / noise ratio Min. 60 dB
Updating time 20 ms
Signal dynamics, input 20 bit
Signal dynamics, output 16 bit
Proportional band (XP) 0.01…999%
Gain, 1/XP = 0.1…10000
Integrating time (TI) 0…999 s
Differentiating time (TD) 0…999 s
Effect of supply voltage change < ±0.002% of span / %V
Auxiliary voltages: Reference voltage 2.5 VDC ±0.5% / 15 mA
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 selected max. value
Current input
Measurement range 0…20 mA
Min. measurement range (span) 4 mA
Input resistance Nom. 50 Ω
Voltage input
Measurement range 0…10 VDC
Min. measurement range (span) 200 mV
Input resistance Nom. 10 MΩ
RTD input
RTD type Pt100 (2289B)
Cable resistance per wire 25 Ω (max.)
Sensor current Nom. 1.25 mA
NPN, digital input Pull up 24 VDC / 6.9 mA
PNP, digital input Pull down 0 VDC / 6.9 mA
Pulse length > 50 ms
OUTPUT SPECIFICATIONS
Current output
Signal range 0…20 mA
Min. signal range 5 mA
Load (@ current output) ≤ 600 Ω
Load stability ≤ 0.01% of span / 100 Ω
Current limit 20.5 mA
Voltage output through internal shunt See manual for details
of span = of the presently selected range
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
EAC TR-CU 020/2011

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