PR Electronics 2261 mV Transmitter

Features

  • Load cell amplifier
  • mV to current / voltage conversion
  • Front-programmable / LED display
  • Relative calibration of input span
  • NPN / PNP input for external taring
  • Supply for standard transducers
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PR Electronics 2261 mV Transmitter is a highly versatile device designed to convert bipolar mV signals from transducers into standard current or voltage signals. It features a multifunction user interface with easy programming capabilities, making it suitable for a wide range of applications, including load cell operations and signal conversion.

Advanced Features

  • Multifunction User Interface: Equipped with three pushbuttons and a 3-digit LED display for programming and monitoring.
  • Front Error LED: Provides immediate indication of errors for quick troubleshooting.

Applications

  • Bipolar mV Signal Conversion: Converts bipolar mV signals from transducers into standard current/voltage signals.
  • Load Cell Applications: Suitable for applications such as tank filling and draining, weighing with taring function, measurement of cable tensile force, level control, signal conversion, and amplification.
  • Transducer Supply: Provides programmable transducer supply voltage for load cells and other sensors.

Technical Characteristics

  • Analog Input Range: Programmable for voltage in the range -40…100 mVDC.
  • Digital Signal Selection: Digital signal can be selected as either NPN or PNP.
  • Taring Function: Taring can be performed via the digital input or the front interface.
  • Analog Output: Programmable to current in the range 0…20 mA or voltage in the range 0…10 VDC.
  • Programmable Transducer Supply: Transducer supply voltage can be programmed between 5…13 VDC from the front panel, with a maximum load of 230 mA (e.g., 6 parallel 350 Ω load cells).
  • Sense Input: Includes a sense input for compensation of cable resistance to the transducer.

Mounting / Installation

  • Standard 11-Pole Socket: Designed for mounting on a standard 11-pole socket, adaptable for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

PR Electronics 2261 mV Transmitter is an ideal solution for industries requiring precise conversion of mV signals, especially in load cell applications and other measurement and control tasks. Its advanced features, flexible programming, and robust design ensure reliable performance across various industrial environments.

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 7.2 W
Internal power dissipation 2.2 W
Response time
Response time (programmable) 0.06…999 s
Signal / noise ratio Min. 60 dB
Updating time 20 ms
Signal dynamics, input 17 bit
Signal dynamics, output 16 bit
Effect of supply voltage change < ±0.002% of span / %V
Temperature coefficient < ±0.01% of span / °C
Linearity error < 0.1% of span
Auxiliary voltage: Transducer supply 5…13 VDC
Load (max.) 230 mA
EMC immunity influence < ±0.5% of span
INPUT SPECIFICATIONS
Common input specifications
Max. offset 70% of selec. max. value
Voltage input
Measurement range -40…100 mV
Min. measurement range (span) 10 mV
Input resistance > 10 MΩ
Overrange 0…999% of selected measurement range
NPN, digital input Pull up 24 VDC / 6.9 mA
PNP, digital input Pull down 0 VDC / 6.9 mA
Trig level low, NPN/PNP < 6 VDC
Trig level high, NPN/PNP > 10.5 VDC
Pulse length > 30 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 < 23 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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