SY018 Voltage to Current Converter

From: £72.18 (+VAT)



The SY018 DIN rail Voltage to 4-20mA signal converter is used to communicate analogue signals over long distances where electrical interference may be a problem. This solution is often used in the process control industry to collect the analogue values from a wide array of remote sensors. The converter is valuable because current signals are much less susceptible to noise than voltage signals. A voltage signal can be converted to current and broadcast over a long distance.  4-20 mA transmitters are common in the industry and used with high-quality sensors. The resulting signals can be use in controlling drives or to trigger instruments that have settable thresholds and limits.

Voltage ranges of 0-2V, 0-2.5V, 0-5V and 0-10V can be specified.
If the voltage inputs are specified for a different range then the output can be factory scaled to give 4mA at zero and 20mA to the top of the input range.  Zero and span trimmers give a wide range of adjustment.

The unit can be supplied as a built pcb with rising clamp terminal blocks but is recommended in a very neat 72,5 x 18 x 62mm Din rail case, with connection made by rising clamp terminals with 3.5 x 2.5mm apertures.  Alternatives enclosures include an ip65 wall mounting ABS case with self sealing glands which is 80 x 80 x 62mm plus mounting lugs suitable for the DC powered version.

A larger ABS case with M12 glands which houses the Circuit and a mother board with a mains power supply is offered but should only be chosen in conjunction with the mains powered version.

Voltage-Current Converter Key Features

  • Has very high stability voltage and current out
  • Supplied in a flame resistant polyamide, and can also be used with either asymmetric or symmetric rails
  • Has an input diode to protect against reverse polarity connection
  • Designed to run on typical nominal voltage of 24V
  • Has got very high immunity to noise interference

Weight from 45gms depends on power and enclosure choices.

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We are always happy to discuss particular applications or special requirements so don’t hesitate to contact us.

Designed and manufactured in our UK factory by Synectic Design Ltd

Standard Specification

Weight 0.049 kg
Dimensions 72.5 × 18 × 62 mm
Power Supply


Features at a glance

DC Voltage in Current out



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Power supply accessories

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Product Data

SY018 Voltage to Current Converter Download Here