Universal AC/DC transmitter

4179

The 0...5 AAC RMS range makes it possible to accurately measure a typical current transformer.
The 0...300 VAC RMS range allows accurate supply voltage monitoring.
The 4179 measures standard input ranges, and can be freely configured to customer-defined input range.
Converts narrow AC current / voltage inputs to wide bipolar or unipolar outputs, e.g. 0...1 VAMS input = ±10 volt or 4...20 mA output with a minimum span of 0.5 AAC RMS or 0.5 VAC RMS.
The detachable 45xx displays provide enhanced diagnostics.
Configurable input limits control the output value for increased safety.
The 4179 has been designed according to strict safety requirements and is therefore suitable for application in SIL 2 installations.

The latest analog and digital techniques are used to obtain maximum accuracy and immunity to interference.
Possibility of output safety feedback by selecting S4...20 mA output.
The current output can drive up to 800 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 an input error.
Tested to a high 2.3 kVAC, 3-port galvanic isolation level.
Excellent signal to noise ratio of > 60 dB.

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.

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
Installation in	Pollution degree 2 & meas. / overvoltage cat. II

Supply
Supply voltage, universal	21.6...253 VAC, 50...60 Hz or 19.2...300 VDC
Max. required power	≤ 1.8 W nom.
Internal power dissipation	≤ 2.5 W
Isolation voltage
Test voltage	2.3 kVAC
Working voltage	250 VAC (reinforced) / 500 VAC (basic)
Response time
Response time (0...90%, 100...10%)	< 0.75 s
Programming	PR 45xx
Signal dynamics, input	20 bit
Signal dynamics, output	18 bit
Signal / noise ratio	> 60 dB
Output referred common mode rejection ratio	0.02 ppm / VHz
Accuracy	Better than 0.3% of selected range*
EMC immunity influence	< ±0.5% of span*
Extended EMC immunity: NAMUR NE21, A criterion, burst	< ±1% of span*
of span	= of selected standard range

Current input
Signal range	0...5 AAC / 40...400 Hz
Maximum input limit	6.00 AAC @ 40°C
Programmable measurement ranges	0...0.5; 0…1; 0…2.5 & 0...5 AAC
Custom configurable signal range	0...5 AAC /40...400 Hz
Min. measurement range (span)	0.5 AAC
Input resistance	Nom. < 0.07 Ω
Voltage input
Signal range	0...300 VAC / 40...400 Hz
Programmable measurement ranges	0...0.5, 0...1, 0...2.83, 0…5, 0…120, 0…230 & 0…300 VAC
Custom configurable signal range	0...300 VAC / 40...400 Hz
Min. measurement range (span)	0.5 VAC
Input resistance	Nom. 3 MΩ \|\| 100 pF

Active unipolar and bipolar mA output
Programmable ranges	0...20, 4...20 and S4...20 mA ±10 and ±20 mA Direct or Inverted Action
Load (@ current output)	≤ 800 Ω
V-curve function, active signals, 100-0-100%	20-0-20 mA
Passive 2-wire mA output
Programmable ranges	0...20 and 4...20 mA Direct or Inverted action
V-curve function, 100-0-100%	20-0-20 mA
External loop supply	3.5...30 V
Current output
Signal range	0...23 mA (unipolar) -23...+23 mA (bipolar)
Current limit	≤ 28 mA (unipolar) ± 28 mA (bipolar)
Load stability	≤ 0.001% of span / 100 Ω
Response time, programmable	0.0...60.0 s
Voltage output
Programmable signal ranges	0/0.2...1; 0/1...5 ; 0/2...10; 1...0.2/0; 5...1/0; 10...2/0 V ±1, ±5 and ±10 V Direct or Inverted action
V-curve function, 100-0-100%	1-0-1, 5-0-5 and 10-0-10 V
Load (@ voltage output)	≥ 500 kΩ
Response time, programmable	0.0...60.0 s