Ohio Semitronics Voltage Transducers
VT Series
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The VT model transducers provide electrically isolated outputs which
are proportional to the applied voltage. Transducer output is derived from
the average absolute value of the input and calibrated as the RMS value
of a sine wave input.
No instrument power connections are required, except in the case of
4 - 20mA outputs. Accuracy is maintained over the full range of the
input voltage. These units are widely used in data acquisition, measurement,
monitoring and recording applications.
Inputs of up to 600 volts can be directly connected eliminating the
need for expensive potential transformers. If U.L. listing is a requirement
consider the AVT model offered by OSI.
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SPECIFICATIONS
INPUT:
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VOLTAGE: See tables
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FREQUENCY RANGE: 50 - 400 Hz.
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BURDEN:
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90V, 150V Models 1VA, 300V Models 2VA,
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600V Models 2.8VA
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OVERLOAD: Full-scale rating
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DIELECTRIC TEST (Input/Output/Case): 1500Vac
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INSTRUMENT POWER (STD. 4 - 20mA UNITS):
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85 - 135Vac, 50 - 400 Hz, 3.5VA.
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OUTPUT:
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ACCURACY: ± 0.25% F.S. @ 60Hz
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Includes effects of linearity (10% - 100%) and setpoint.
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Over frequency range typically + 0.5% F.S.
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OUTPUT RIPPLE: Less than 1.0% F.S.
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RESPONSE: 400 milliseconds
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OUTPUT LOADING (OHMS):
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0 - 1mA: 0 - 10K
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5V & 10V: minimum 10K
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4 - 20mAE: 0 - 1500
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4 - 20mAE2: 0- 1400
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FIELD ADJUSTABLE CAL.: ± 5%
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TEMPERATURE EFFECT (-20°C - 60°C): ± 1.0% RDG.
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3AVT Series Voltage Transducers
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FEATURES
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Accurate, reliable voltage measurement.
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Three separate inputs, three separate outputs.
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Input/output isolation.
APPLICATIONS
Designed for use in three phase applications which require UL, CUL
or CE listing.
Perfect for motor monitoring or power distribution monitoring.
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The 3AVT is designed for applications where UL, CUL
or CE listed equipment for measuring multiple voltages in three phase or
single phase system is required. The 3AVT takes three voltage inputs and
provides three seperate isolated outputs. The output is the absolute average
of the value of the voltage input calibrated in terms of the RMS value
of the input. The 3AVT is available for voltage ranges from 90Vac up to
575Vac with outputs of 1mA, 4 - 20mA as well as 5Vdc and 10Vdc.
SPECIFICATIONS
INPUT:
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FREQUENCY RANGE: 50/60 Hz.
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BURDEN:
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90V & 150V Models: 1VA
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300V Models: 2VA
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600V Models: 3VA
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OVERLOAD:
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Full-scale rating
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600V models: 575V
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DIELECTRIC TEST (4 - 20mA, 'E' models): 2200Vac
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INSTRUMENT POWER:
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115Vac, 50/60 Hz, ±15%, 10VA
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-22 option: 230Vac, 50/60Hz, ±15%, 10VA
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OUTPUT:
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ACCURACY: ±0.25% F.S. @ 60Hz
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Includes effects of linearity (10% - 100%) and
setpoint.
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OUTPUT RIPPLE: Less than 1.0% F.S.
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RESPONSE: 400 milliseconds
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OUTPUT LOADING (ohms):
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A: 0 - 10K; E: 0 - 1K
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C & CX5: ³10M; E2: 0 - 600
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FIELD ADJUSTABLE CAL.: ±5%
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TEMPERATURE EFFECT : ±1.0% RDG
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TEMPERATURE RANGE: -20º C - +60º C
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MVT Series DIN-Rail Mount Voltage Transducers
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FEATURES
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Ruggedized Polyamide DIN mount case.
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Standard OSI five year warranty
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Slim profile allows maximum use of available space.
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Field selectable analog outputs.
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Recessed terminals provide increased safety.
APPLICATIONS
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Ideal for use in enclosures with dimensional constraints.
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Designed for industrial environments.
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OEM measurement systems.
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Designed for use with potential transformers.
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Easily integrated into control systems.
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SPECIFICATIONS
INPUT:
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VOLTAGE: Various - Please CALL
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FREQUENCY RANGE: 48 - 65 Hz.; 60 Hz. nom.
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BURDEN: 150V models: 1.0VA
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VOLTAGE OVERLOAD:
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DIELECTRIC TEST (Input/Output): 1500Vac
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INSTRUMENT POWER: 85 - 135Vac, 50 - 400Hz, 3.5VA
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LOOP POWERED: 15 - 40Vdc
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OUTPUT:
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ACCURACY (@ 60Hz.): ± 0.25% F.S.
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Includes effects of linearity (10% - 100% F.S.)and setpoint.
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OUTPUT RIPPLE: Less than 1.0% F.S.
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RESPONSE TIME (99%): 400 milliseconds
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OUTPUT LOADING (OHMS):
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4 - 20mA (24V loop pwr.): 0 - 600
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Field selectable:
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0 - 1mA: 0 - 10k
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0 - 5Vdc: Greater than 5M
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0 - 10Vdc: Greater than 10M
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FIELD ADJUSTABLE SPAN: ± 5%
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TEMPERATURE EFFECT (-20°C - 65°C): ± 1.0%
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VTR Series True RMS Voltage Transducers
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FEATURES
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Accurate measurement of the true RMS value of input signals over a wide
frequency range.
APPLICATIONS
For use in applications where measurement of non-sinusoidal waveforms
is required.
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SPECIFICATIONS
INPUT:
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VOLTAGE: Various - Please CALL
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FREQUENCY RANGE: 48 - 420 Hz.
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BURDEN: 0.12VA F.S.
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OVERLOAD: Full-scale rating.
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DIELECTRIC TEST (Input/Output/Case): 1500Vac
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INSTRUMENT POWER (STD.): 85 - 135Vac, 50 - 400 Hz, 3.5VA.
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OUTPUT:
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OUTPUT RIPPLE: Less than 1.0% F.S.
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RESPONSE (90%): 100 milliseconds
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OUTPUT LOADING (OHMS):
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0 - 1mA: 0 - 10K
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0 - 5Vdc: 2K min.
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4 - 20mA: 0 - 500
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FIELD ADJUSTABLE CAL.: ± 10%
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ACCURACY ± 0.25% F.S. (at 60 Hz.)
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Includes effects of linearity.
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± 0.5% over entire frequency range
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TEMPERATURE EFFECT (-20ºC - 60ºC): ± 1.0% RDG.
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