Universal uni-/bipolar signal transmitter 4184

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).
• The 4184 provides the required failure data (SFF and PFDAVG) for SIL 2 applications as per IEC 61508 / IEC 61511.
• Failure rates for 4184 correspond to Performance Level “d” according to ISO-13849.

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.

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 4500 series of detachable displays.

Read the article PR 4184: bipolar signal conversion to 4…20 mA for PLCs.

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How do you configure PR 4184?

For parameter configuration and process-signal monitoring, PR 4184 can be used with the PR 4510 display / programming front, a compatible accessory in the PR 4500 series.

Before selecting the configuration, consult the official PR 4184 manual (English, PDF) and the manufacturer’s PR 4184 technical data and accessories. Match the input signal type and range to the output and supply required by your application.