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The IsoFlex V has been designed to provide high-quality isolated differential voltage measurements for aplications requiring scaling of high voltages, as well as superior isolation.
| Input ranges | LR : ± 5 V, ± 10 V, ± 15 V, ± 20 V, ± 30 V MR : ± 50 V, ± 100 V, 150 VAC, 250 VAC, ± 300 V HR : ± 500 V, 500 VAC, ± 750 V, ± 1000 V, ± 1500 V |
| Bandwidth (-3dB point) | 100 kHz |
| Input-Output non-linearity | < 0.04 % |
| Output | ± 5 V, ± 10 V, 0 - 10 V, 4 mA to 20 mA |
| Gain temperature drift | ± 50 ppm/°C |
| Common mode rejection at 60Hz | 112 dB |
| Output Offset current | 2σ < ± 500 µV (typical) 2σ < 12 mA ± 50 µA (typical) |
| Power Supply Voltage | 12 V to 36 V |
| Output type | Current or Voltage jumper selectable |
| Differential Input impedance | HR: > 8 MΩ MR: > 8 MΩ LR: > 8 MΩ |
| Insulation impedance | > 10 GΩ || 2 pF |
The IsoFlex V has been designed to provide high-quality isolated differential voltage measurements for aplications requiring scaling of high voltages, as well as superior isolation.
Each IsoFlex V unit hosts an isolated channel that can be connected to separate measurement sources while providing a range of functional coverage up to 1500V. The input has its own isolated reference, and can be configured to suit user needs. The output signal from the IsoFlex unit is referenced in respect to the ground channel of the user’s data acquisition system.
Designs its IsoFlex V modules with consideration for user great flexibility, and low power consumption.
| Accuracy | ± 0.2 % of reading + 0.005 % range |
| Max total phase shift at 60Hz | < 0.05° |
| Max Input delay (100kHz versions) | < 3 μs |
| Isolation voltage from primary to secondary | > ± 1500 VAC |
| Withstanding common mode surge voltage | ± 5000 V |
| Withstanding differential surge voltage | ± 2500 V |
The IsoFlex V module is designed to isolate and scale down high voltages found in industrial enviroments. The end result is a signal ready to connect to any data acquisition system, while galvanically isolating the source from it.
The IsoFlex V signal input has surge protection circuitry, the operation amplifier converts the input signal to ±10 V range, The modulator
converts this analog input signal into a digital bitstream that is transferred across the isolation barrier. On the low-side, the received bitstream is processed by a fourth-order analog filter that outputs a differential signal. The operation amplifier with an anti-aliasing filter outputs ± 10 V. The following diagram depicts the signal processing above.
1.The isolation barrier of every device is tested with a 5 second partial discharge of 1800V for 5 seconds, with a detection threshold of 150pC.
2.Withstanding common mode surge voltage is 2 seconds half sinewave.
3.Withstanding differential mode surge voltage is 4 seconds half sinewave.
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