GL7-HV
Quantity
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.
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.
High withstand voltage (maximum input range 1000V)
It can be measured in a safe and reliable by having a
high maximum input voltage and withstand voltage.
Input coupling (DC or AC)
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.
RMS (effective value) measurement in real time
It is able to handle the measurement for a long time as durability test
by measuring in effective value (RMS).
Application examples
GL7-HV specification
| 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 | |
- *1
-
Subject to the conditions:
¢ Room temperature is 23ºC ±5ºC. ¢ When 30 minutes
or more have elapsed after power was turned on.
¢ Filter is set to 10 or Line. ¢ Sampling rate is set to 1 second.
¢ GND terminal is connected to ground.
