Description
- Our range of signal converters provide a convenient and reliable way of converting almost any input voltage or current to commonly used process signal levels.
- Voltages of down to 50 mV can be converted to a standard current or voltage output.
- Customised input and output requirements can usually be met on request.
- A high precision instrumentation amplifier forms the input stage with galvanic isolation between input and output.
- A digital filter with adjustable step response of between 0.1 and 47 seconds is also provided for the filtering of noisy signals.
Specifications
- Three models: Basic, Plus and User Configurable.
- Input signal ranges from 0-50 mV, 0-5 V, 1-5 V, ±10 V, 0-250 V, 0-500 V, 0-20 mA to 4-20 mA and many more.
- Bipolar input and output configurations.
- Customised input and output ranges on request.
- Standard input impedance of >100 kΩ for the voltage input and 50 Ω for the current input models. A high input impedance version is available.
- Maximum input signals of 500 V for voltage input and 10 A for the current input.
- Output signal ranges of 0-10 V, 1-5 V, ±10 V, 4-20 mA and 0-20 mA and more.
- Output load >2 kΩ for the voltage output and 500 Ω maximum for the current output.
- Multi-turn trimpot adjustments for zero and span on the front of the unit which can be disabled.
- Adjustable filter with time constant from 0 to 47 seconds.
- Frequency response 10 Hz with filter disabled. (A high frequency analogue version is available).
- Linearity better than 0.1% of full scale.
- Auxiliary supplies 115, 230 VAC ±10%, 90-250 VAC, 50/60 Hz or 9-32 VDC, 40-160 VDC and others.
- Isolation between input and output >1,500 VAC for AC powered versions and >1,000 VAC for DC powered versions.
- Operating temperature -10°C to 70°C.
- 24 hour operational burn-in.
- Calibration sheet provided for each unit manufactured.
- DIN rail mounting with dimensions 40 x 80 x 85 mm (W x H x D).
Documentation
Applications
- Signal conversion.
- Filtering of noisy signals.
- Elimination of the effects of ground loops from distributed process signals.
- The protection of signals against common mode interferences such as motors, contactors and power line surges.
- Process signal amplification in situations where the line impedance is too great to effectively drive the required instrumentation.
- The current input versions have 50 Ω input impedance and add very little additional loop resistance.
- The outputs can drive loads of up to 500 Ω which is sufficient to drive a measurement loop of several kilometres.
- Individual channel isolation and the elimination of common mode offsets for non-isolated computer and PLC inputs.
- Square root extraction.
- Absolute value conversion.