Universal Uni-/Bipolar Signal Transmitter – PR Electronics 4184

Features

  • Measures DC inputs up to ±300 V / ±100 mA with spans as low as 25 mV / 0.5 mA
  • Passive/active current output and buffered voltage output
  • Fast < 20 ms response time and excellent 0.05% accuracy
  • Universally powered by 21.6…253 VAC / 19.2…300 VDC
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Application

  • Fast < 20 ms response time for measuring signals produced by torque, position, current & acceleration sensors.
  • User configurable bipolar or unipolar I/O means the 4184 is suitable for nearly any DC voltage or current conversion.
  • Freely programmable between ±300 VDC and ±100 mA.
  • The excitation source allows measurement of a 2-wire or 3-wire transmitter, or a potentiometer.
  • Converts narrow bipolar inputs to wide bipolar or unipolar outputs, e.g., ±1 volt input = ±10 volt or 4…20 mA output.
  • Configurable input limits control the output value for increased safety.
  • ±20 VDC buffered voltage output for controlling devices like the PVG 32 valve (6…18 VDC).
  • Designed according to strict safety requirements and is therefore suitable for application in SIL 2 installations.

Technical characteristics

  • The latest analog and digital techniques are used to obtain maximum accuracy and immunity to interference.
  • Possibility of output safety readback by selecting S4…20 mA output.
  • The current output can drive up to 1000 Ohms, with an adjustable response time of 0.0…60.0 seconds.
  • Exceptional mA output load stability of < 0.001% of span / 100 Ohm.
  • Meets the NAMUR NE21 recommendations, ensuring high accuracy in harsh EMC environments.
  • Meets the NAMUR NE43 recommendations, allowing the control system to easily detect a sensor error.
  • Tested to a high 2.3 kVAC, 3-port galvanic isolation level.
  • Excellent signal to noise ratio of > 60 dB.
  • Suitable for the use in systems up to Performance Level “d” according to ISO-13849.

Mounting / installation / programming

  • Very low power consumption means units can be mounted side by side without an air gap – even at 60°C ambient temperature.
  • Configuration, monitoring, 2-point process calibration and more are accomplished using PR’s 45xx detachable displays.
  • All programming can be password-protected.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -20°C to +60°C
Storage temperature -20°C to +85°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP20
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 109 x 23.5 x 104 mm
Dimensions (HxWxD) w/ 4501/451x 109 x 23.5 x 116 / 131 mm
Weight approx. 155 g
Weight incl. 4501 / 451x (approx.) 170 g / 185 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13…2.08 mm2 AWG 26…14 stranded wire
Screw terminal torque 0.5 Nm
COMMON SPECIFICATIONS
Supply
Supply voltage, universal 21.6…253 VAC, 50…60 Hz or 19.2…300 VDC
Max. required power ≤ 2.5 W
Max. power dissipation ≤ 2.0 W
Isolation voltage
Test voltage 2.3 kVAC
Working voltage 250 VAC (reinforced) / 500 VAC (basic)
Response time
Response time (0…90%, 100…10%) < 20 ms
Auxiliary supplies
2-wire loop supply > 16 V @ 23 mA
3-wire loop supply > 18…< 28 V @ 23…0 mA
Loop supply limitation 27…35 mA avg., < 80 mA peak
Reference voltage 2.5 VDC ±0.5%
Reference voltage, load 0…15 mA
Current limit, reference voltage < 60 mA
Programming PR 45xx
Signal dynamics, input 24 bit
Signal dynamics, output 18 bit
Signal / noise ratio > 60 dB
Bandwidth > 40 Hz
Accuracy Better than 0.05% of selected range
EMC immunity influence < ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span
Conducted emission, cl. A 150 kHz…10 MHz
INPUT SPECIFICATIONS
Current input
Signal range ±100 mA
Programmable measurement ranges 0…1, 0…5, 1…5, 0…20, 4…20, ±1, ±5, ±10, ±20, ±50, ±100 mA
Custom configurable signal range ±100 mA
Min. measurement range (span) 0.5 mA
Input voltage drop 0.6 V @ 20 mA nom.
Voltage input
Signal range ±300 VDC
Programmable measurement ranges 0…0.1, 0…1, 0.2…1, 0…2.5, 0…5, 1…5, 0…10, 2…10, 0…100, 0…300, ±0.1, ±1, ±2.5, ±5, ±10, ±100, ±300 V
Custom configurable signal range ±300 V
Min. measurement range (span) 25 mV
Input resistance Nom. 3 MΩ (> 2.5 VDC) Nom. > 10 MΩ (≤ 2.5 VDC)
Potentiometer input
3-wire potentiometer input 0…100%
Reference voltage 2.5 V
Calibration resistance 5 kΩ
Min. potentiometer resistance 200 Ω
OUTPUT SPECIFICATIONS
Current output
Signal range 0…23 mA (unipolar) -23…+23 mA (bipolar)
Custom config. output range ±20 mA
Min. signal range 4 mA
Load (@ current output) ≤ 1000 Ω / ± 20 V @ ±20 mA
Current limit ≤ 28 mA (unipolar) ± 28 mA (bipolar)
Load stability ≤ 0.001% of span / 100 Ω
Response time, programmable 0.0…60.0 s
Passive 2-wire mA output
Programmable ranges 0…20 and 4…20 mA
Ext. 2-wire loop supply range 3.5…28.8 VDC
Voltage output
Programmable signal ranges 0/0.2…1; 0/1…5 ; 0/2…10 V ±1, ±5 and ±10 V
Direct or Inverted action
Load (@ voltage output) ≥ 500 kΩ
Response time, programmable 0.0…60.0 s
Shunted voltage output
Signal range ± 1.2 V / ± 12 V
Programmable standard ranges 0…1, 0…2.5, 0…5, 1…5, 0…10, 2…10 V ±1, ±2.5, ±5, ±10 V
Min. span 0.8 V
Custom config. output range ±10 V
Load, min. > 500 kΩ
Buffered voltage output
Signal range ± 23 V
Programmable standard ranges 0…1, 0.2…1, 0…2.5, 0…5, 1…5, 0…10, 2…10, 0…20, 4…20; ±1, ±2.5, ±5, ±10, ±20 V
Min. span 0.8 V
Custom config. output range ±20 V
Current limit < 50 mA
Load, min. > 2 kΩ
OBSERVED AUTHORITY REQUIREMENTS
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
APPROVALS
c UL us, UL 508 / C22.2 No. 14 E248256
SIL Hardware assessed for use in SIL applications

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