Charge Module GL7-CHA
This is the input module for the sensors based on the piezoelectric elements capable of measuring a variety phenomena as acceleration, pressure, force.
It is able to connect the sensor directly and also able to measure the voltage.
It supports the TEDS in the sensor and allows to make setup easily.
It supports various filters capable to have high-precision measurement.
Added menu selection for microphones
Added a menu for sound input by piezo-based microphones on the Charge/Acceleration Module (GL7-CHA).
Sound or vibration analysis can be performed by third party software using recorded sound data.
High-precision measurement using various filters
High-precision signal is able to be captured by the high-pass, low-pass, and anti-aliasing filter.
Supports a variety piezoelectric type sensors
This module supports a variety type of piezoelectric sensors including an acceleration sensor, and supports direct connection of the sensor.
| Type of sensor | Unit of sensitivity (example) | ||
|---|---|---|---|
| Piezoelectric type sensors | Charge output type | Acceleration sensor | pC/(m/s2)、pC/(9.8m/s2)、pC/g、pC/G |
| Pressure sensor | pC/bar、pC/N、pC/Pa | ||
| Force/Load sensor | pC/lb、pC/kN | ||
| Voltage output (IEPE) type | Acceleration sensor | mV/(m/s2)、mV/(9.8m/s2)、mV/g、mV/G | |
| Pressure sensor | mV/psi、mV/kPa、mV/Pa、mV/bar | ||
| Force/Load sensor | mV/lb、mV/lbf、mV/N、mV/kN | ||
The charge output type and voltage output (IEPE) type are available in the piezoelectric type sensor for measuring a wide variety phenomena. Variety type of sensors are able to use by setting the sensitivity and the unit of measurement.
Application examples
| Industry | Construction & Public Works |
Machinery industry | Electrical equipment industry |
Transportation equipment industry |
Energy (Electricity, Gas) |
|---|---|---|---|---|---|
| Application examples |
Seismic isolation measurement | Movement of the robot | Vibration of the enclosure | Running test | Vibration of the enclosure |
| Research and maintenance of structure |
Vibration of the motor, pump | Drop test | Shaking test | ||
| Vibration of installed products | Vibration of bearings | Substrate vibration | Vibration of an engine |
GL7-CHA specification
| Item | Description | |
|---|---|---|
| Type of module | Charge amplifier module - for sensor based on Piezoelectric element - | |
| Model number | GL7-CHA | |
| Number of input channels | 4 channels | |
| Input method | All channels isolated unbalanced input, Simultaneous sampling, BNC and Miniature connector (#10-32UNF) |
|
| Sampling speed (interval) | 100 k Samples/s to 1 sample/h (10 μs to 1 hr.) | |
| Built in RAM | 2 million samples for each channel | |
| Input type | Sensor in charge output type, Sensor in IEPE type, Condenser microphone (CCLD) for noise sound by vibration (*1), Voltage | |
| Input coupling | Sensor: Charge-RMS, IEPE-RMS Voltage: DC, AC, DC-RMS, AC-RMS |
|
| Measurement range | Acceleration sensor input | 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000 m/s2 |
| Microphone input (*1) | 200, 400, 500 mPa, 1, 2, 4, 5, 10, 20, 40, 50, 100, 200, 400, 500 Pa | |
| Voltage input | DC, AC coupling: 50, 100, 200, 500 mV, 1, 2, 5, 10 V RMS measurement: 20, 50, 100, 200, 500 mVrms, 1, 2, 5 Vrms (Crest Factor in RMS measurement: up to 4 in 20 mVrms to 2 Vrms range, up to 2 in 5 Vrms range) |
|
| Supported sensor sensitivity | Charge output type | 0.01 pC/(m/s2) to 999.9 pC/(m/s2) Effective range of measurement range varies depending on sensor sensitivity. Please refer to the following chart for details. |
| IEPE type | 0.01 mV/(m/s2) to 999.9 mV/(m/s2) Effective range of measurement range varies depending on sensor sensitivity. Please refer to the following chart for details. |
|
| Microphone (*1) | 0.2 mV/Pa to 100 mV/Pa | |
| Measurement accuracy (*2) | Voltage | ±0.25% of Full Scale |
| In DC-RMS (by Sine wave): ±0.5% of Full Scale at 20 Hz to 1 kHz ±1.5% of Full Scale at 1 kHz to 5 kHz |
||
| In AC-RMS (by Sine wave): ±0.5% of Full Scale at 100 Hz to 1 kHz ±1.5% of Full Scale at 1 kHz to 5 kHz |
||
| Charge output type | ±0.9% of Full Scale ([sensor sensitivity] × [setting range] ≥ 20 pC) | |
| In RMS (by Sine wave): ±1.4% of Full Scale at 20 Hz to 1 kHz | ||
| IEPE type | ±0.25% of Full Scale ([sensor sensitivity] × [setting range] ≥ 200 mV) | |
| In RMS (by Sine wave): ±0.75% of Full Scale at 20 Hz to 1 kHz | ||
| Microphone | ±0.25% of Full Scale ([sensor sensitivity] × [setting range] ≥ 200 mV) | |
| A/D converter | Successive Approximation type, 16bits (effective resolution: 1/40000 of the measuring full range) | |
| Input impedance | 100 kΩ ±5% | |
| Excitation power | 4 or 8 mA (supported voltage: 22 V ±10%) | |
| Maximum input charge signal | Max. 50000 pC | |
| Maximum input voltage | Between (+) / (-) terminal | 25 Vp-p |
| Between channels ((-) terminals) | 25 Vp-p | |
| Between channel / GND | 25 Vp-p | |
| Max. voltage (withstand) | Between channels | 300 Vp-p (1 minute) |
| Between channel / GND | 300 Vp-p (1 minute) | |
| Isolation | Between input / GND | Min. 50 MΩ (at 500 V DC) |
| Common-mode rejection ratio | Min. 80 dB (50/60 Hz, Signal source impedance: Max. 300 Ω) | |
| Frequency response | Charge type | 1.5 Hz to 45 kHz |
| IEPE type | 1 Hz to 45 kHz | |
| Filter | Hi pass | Off, 0.15, 1, 10 Hz (It depends on input conditions.) |
| Low pass | Off, Line(1.5 Hz), 3, 6, 10, 30, 50, 60, 100, 300, 500 Hz, 1k, 3k, 5k, 10k Hz (in -30dB/oct) | |
| Anti-aliasing | Off, On | |
| Support TEDS | Standard | Acceleration sensor: IEEE 1451.4 Class1 (Temperate No.25) Microphone: IEEE 1451.4 Class1 (Temperate No.27) |
| Support | Reading information from the sensor and setting it to module | |
| Calculation function | Integration (convert measurement to velocity), Double Integration (convert measurement to displacement) |
|
| External dimensions (W x D x H) | Approx. 49 x 136 x 160mm (Excluding projections) | |
| Weight | Approx. 850 g | |
- (*1)
- It is required firmware version 2.0 or later.
- (*2)
- Subject to the conditions:
● Room temperature is 23℃ ±5℃. ● When 30 minutes or more have elapsed after power was turned on.
● Filter is set to 10 or Line. ● GND terminal is connected to ground.
Measurement accuracy of RMS is effective for input voltage of 5 to 100% in each measurement range.
<Charge/Charge-RMS Input>
Settings of the range and charge sensitivity (○:Available)
| Range | Charge sensitivity Unit: mV/ (m/s2) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0.0100 to 0.5000 | 0.5001 to 2.0000 | 2.0001 to 5.0000 | 5.0001 to 10.0000 | 10.0001 to 20.0000 | 20.0001 to 50.0000 | 50.0001 to 100.0000 | 100.0001 to 200.0000 | 200.0001 to 500.0000 | 500.0001 to 999.9999 | |
| 1m/s2 | ○ | ○ | ||||||||
| 2m/s2 | ○ | ○ | ||||||||
| 5m/s2 | ○ | ○ | ○ | ○ | ||||||
| 10m/s2 | ○ | ○ | ○ | ○ | ○ | |||||
| 20m/s2 | ○ | ○ | ○ | ○ | ○ | |||||
| 50m/s2 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||
| 100m/s2 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |||
| 200m/s2 | ○ | ○ | ○ | ○ | ○ | ○ | ||||
| 500m/s2 | ○ | ○ | ○ | ○ | ○ | ○ | ||||
| 1000m/s2 | ○ | ○ | ○ | ○ | ○ | |||||
| 2000m/s2 | ○ | ○ | ○ | ○ | ○ | |||||
| 5000m/s2 | ○ | ○ | ○ | ○ | ||||||
| 10000m/s2 | ○ | ○ | ○ | |||||||
| 20000m/s2 | ○ | ○ | ||||||||
| 50000m/s2 | ○ | |||||||||
<IEPE/IEPE-RMS Input>
Settings of the range and voltage sensitivity (○:Available)
| Range | Voltage sensitivity Unit: mV/ (m/s2) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.0100 to 0.0200 | 0.0201 to 0.0500 | 0.0501 to 0.2000 | 0.2001 to 0.5000 | 0.5001 to 1.0000 | 1.0001 to 2.0000 | 2.0001 to 5.0000 | 5.0001 to 10.0000 | 10.0001 to 20.0000 | 20.0001 to 50.0000 | 50.0001 to 100.0000 | 100.0001 to 200.0000 | 200.0001 to 500.0000 | 500.0001 to 999.9999 | |
| 1 m/s2 |
○ | ○ | ○ | ○ | ||||||||||
| 2 m/s2 |
○ | ○ | ○ | ○ | ○ | |||||||||
| 5 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ||||||||
| 10 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
| 20 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
| 50 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||||||
| 100 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
| 200 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
| 500 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
| 1000 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ○ | |||||||
| 2000 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ||||||||
| 5000 m/s2 |
○ | ○ | ○ | ○ | ○ | ○ | ||||||||
| 10000 m/s2 |
○ | ○ | ○ | ○ | ○ | |||||||||
| 20000 m/s2 |
○ | ○ | ○ | ○ | ||||||||||
| 50000 m/s2 |
○ | ○ | ○ | |||||||||||
<Microphone input>
Range and voltage sensitivity settings
| Range | Voltage sensitivity Unit: mV/Pa | |||||||
|---|---|---|---|---|---|---|---|---|
| 0.2 to 0.5 | 0.5 to 1 | 1 to 2 | 2 to 5 | 5 to 10 | 10 to 20 | 20 to 50 | 50 to 100 | |
| 200 mPa | ○ | |||||||
| 400 mPa | ○ | |||||||
| 500 mPa | ○ | |||||||
| 1 Pa | ○ | ○ | ○ | |||||
| 2 Pa | ○ | ○ | ○ | |||||
| 4 Pa | ○ | ○ | ||||||
| 5 Pa | ○ | ○ | ○ | |||||
| 10 Pa | ○ | ○ | ○ | ○ | ○ | ○ | ||
| 20 Pa | ○ | ○ | ○ | ○ | ○ | |||
| 40 Pa | ○ | ○ | ○ | |||||
| 50 Pa | ○ | ○ | ○ | ○ | ○ | |||
| 100 Pa | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| 200 Pa | ○ | ○ | ○ | ○ | ○ | |||
| 400 Pa | ○ | |||||||
| 500 Pa | ○ | ○ | ○ | ○ | ||||
