DC and AC
Voltage Transducers, Conditioner, Isolator modules Models VT7 and VT8 DC to 10kHz Frequency Range |
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AC / DC Voltage TransducersUse VT7 and VT8 AC / DC Voltage Transducers allow isolation and conditioning of ac and dc voltages, converting to rms, mean or instantaneous outputs. The VT7 and VT8 series voltage transducers are designed to measure AC+DC and AC voltage in 1 phase, split phase and 3 phase systems. They convert the input voltage signal to an isolated DC output that is directly proportional to the input rms voltage. The VT8 models are RMS calibrated voltage transducers, with 0-1mA, 4-20mA (4mA live zero), voltage 0-5V or 0-10V outputs. Auxiliary power is required to ensure that the output signal is present even when the inputs are close to zero - which is a key benefit of instrument powered (externally powered) transducers.Because the VT8 is true RMS sensing and RMS calibrated, it allows measurement of distorted waveforms of up to 9th harmonic with a crest factor of 5. Both the VT7 and VT8 are typically used in voltage measurement where distorted voltage waveforms are common, such as pump speed controllers, fan speed controllers, motor VFD controllers, UPS and thyristor drives. These units are also used to measure voltage in energy management systems, switchboards, generator and telemetery controls. Isolation of 2.5kV is provided between the input and output signal, allowing the output to be fed to PLC computer systems and even conventional analogue meters |
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FEATURES
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APPLICATIONS
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*Input mV |
Standard Outputs Model VT7- or VT8- | |||
***1mA | 4-20mA | ***10V | ***5V | |
0-50 | 015B | 015E | 015D | 015X5 |
0-100 | 016B | 016E | 016D | 016X5 |
0-200 | 017B | 017E | 017D | 017X5 |
0-250 | 018B | 018E | 018D | 018X5 |
Input Volts |
Standard Outputs Model VT7- or VT8- | |||
***1mA | 4-20mA | ***10V | ***5V | |
0-10 | 001B | 001E | 001D | 001X5 |
0-25 | 002B | 002E | 002D | 002X5 |
0-50 | 003B | 003E | 003D | 003X5 |
0-100 | 004B | 004E | 004D | 004X5 |
0-150 | 005B | 005E | 005D | 005X5 |
0-250 | 006B | 006E | 006D | 006X5 |
0-300 | 007B | 007E | 007D | 007X5 |
0-400 | 008B | 008E | 008D | 008X5 |
0-500 | 009B | 009E | 009D | 009X5 |
0-600 | 010B | 010E | 010D | 010X5 |
** 0-700 | 011B | 011E | 011D | 011X5 |
** 0-800 | 012B | 012E | 012D | 012X5 |
** 0-900 | 013B | 013E | 013D | 013X5 |
** 0-1000 | 014B | 014E | 014D | 014X5 |
* Shunt Inputs ** Supplied with external multiplier box *** Bi-directional (+) on VT& Series SAVE $ "-11 & -22 models which utilize a low cost, linear power supply" |
Ordering Information Exmple: 0-50mVdc Input with 4-20mAdc Output and 125Vdc Instr. Pwr. VT7-015E Ordering Information Exmple: 0-100Vac Input with 0-10Vdc Output and 115Vac Instr. Pwr. VT8-004D-11 |
Instrument Power
Options: Option "-11" 95-135Vac, 50/60Hz, 5VA Option "-22" 230Vac, 50/60Hz, 5VA, ±15% Option "-12, -15, -24, -37, -48", 150mA max., 12Vdc thru 48Vdc, ±10% |
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