Datasheet
Universal AC / DC transmitter
4179
Measures AC current and voltage signals–
Outputs passive or active current signals–
Programming, process monitoring and diagnostics via 4511 / 4501–
Response time < 0.75 s and excellent accuracy better than 0.3%–
Universally powered by 21.6…253 VAC / 19.2...300 VDC–
Applications
Application
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.
•
Configurable input limits control the output value for increased
safety.
•
Technical characteristic
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.
•
Each unit is tested to a high 2.3 kVAC, 3-port galvanic
isolation level.
•
Excellent signal to noise ratio of > 60 dB.•
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 either the 4501 detachable
display or the 4511 detachable digital communication enabler.
•
All programming can be password-protected.•
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