This is the voltage input module capable to measure high voltage as a AC
power line or an electric vehicle. It can be measured high voltage as maximum
1000V in at fast speed as maximum 1MS/s (1μs interval). Demand to measure
a signal as a control and power line in the inverter-based system used for vehicle
and electrical equipment is increased.
It can be measured in a safe and reliable by having a
high maximum input voltage and withstand voltage.
By using the DC and AC coupling feature, the voltage signal of a small
signal superimposed on the input signals or the absolute voltage value
can be recorded.
It is able to handle the measurement for a long time as durability test
by measuring in effective value (RMS).
| Item | Description | |
|---|---|---|
| Type of module | Voltage measurement module - High-voltage model - | |
| Model number | GL7-HV | |
| Number of input channels | 2 channels | |
| Input method |
All channels isolated unbalanced input, Simultaneous sampling, Isolated BNC connector |
|
| Sampling speed (interval) | 1 M Samples/s to 1 Sample/h (1 μs to 1 hr.) | |
| Built in RAM | 2 million samples for each channel | |
| Input coupling and measurement | AC, DC, AC-RMS, DC-RMS | |
| Measurement range | DC, AC | 2, 5, 10, 20, 50, 100, 200, 500, 1000 V Full Scale |
| DC-RMS, AC-RMS |
1, 2, 5, 10, 20, 50, 100, 200, 500 Vrms Full Scale (Crest Factor: up to 4 in 1 to 200 Vrms range, up to 2 in 500 Vrms range) |
|
| Measurement accuracy (*1) | DC, AC | ±0.25% of Full Scale |
| DC-RMS |
Sine wave measurement ±0.5% of Full Scale (at 20 Hz ≤ F ≤ 1 kHz) ±1.5% of Full Scale (at 1 kHz < F ≤ 20 kHz) Response time: 500ms (Crest Factor is up to 4) |
|
| AC-RMS |
Sine wave measurement ±0.5% of Full Scale (at 100 Hz ≤ F ≤ 1 kHz) ±1.5% of Full Scale (at 1 kHz < F ≤ 20 kHz) Response time: 500 ms (Crest Factor is up to 4) |
|
| A/D converter |
Successive Approximation type, 16 bits (effective resolution: 1/40000 of the measuring full range in the DC and AC coupling, 1/20000 of the measuring full range in the DC-RMS, AC-RMS coupling) |
|
| Input impedance | 1 MΩ ±5% | |
| Maximum input voltage | Between (+)/(-) terminal | 1000 Vp-p |
| Between channels ((-) terminals) | 300 Vrms AC | |
| Between channel/GND | 300 Vrms AC | |
| Max. voltage (withstand) | Between channels | 2300 Vrms AC (1 minute) |
| Between channel/GND | 2300 Vrms AC (1 minute) | |
| Isolation | Between input/GND | Min. 50 MΩ (at 500 V DC) |
| Common-mode rejection ratio | Min. 90 dB (50/60 Hz, Signal source impedance: Max. 300 Ω) | |
| Frequency response |
DC Coupling: DC to 200 kHz (+1/-3 dB) AC Coupling: 4Hz to 200 kHz (+1/-4.5 dB) |
|
| Filter | Low pass | OFF, Line (1.5 Hz), 5, 50, 500, 5k, 50k Hz (at -3 dB, 6dB/oct) |
| External dimensions (W×D×H) | Approx. 49 x 136 x 160mm (Excluding projections) | |
| Weight | Approx. 740 g | |
