| Type of module |
DC bridge amplifier module – for strain gauge or sensor based on a strain gauge – |
| Model number |
GL7-DCB |
| Number of input channels |
4 channels |
| Input method |
All channels isolated balanced input, Simultaneous sampling,
D-SUB type connector (9 pins, receptacle) |
| 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 |
Strain, Voltage, Resistance value (including potentiometer) |
| Measurement range |
Strain |
500, 1000, 2000, 5000, 10000, 20000 με (με: 10-6 strain)
0.2, 0.25, 0.4, 0.5, 1, 2, 2.5, 4, 5, 10 mV/V
* Available ranges vary by the excitation voltage for the bridge. |
| Voltage |
1, 2, 5, 10, 20, 50, 100, 200, 500 mV, 1, 2, 5 V Full Scale |
| Resistance |
1, 2, 5, 10, 20, 50, 100, 200, 500 Ω, 1, 2, 5, 10, 20, 50 kΩ Full Scale |
| Measurement accuracy (*1) |
Strain |
±(0.2% of Full Scale + 10 με) |
| Voltage |
±(0.2% of Full Scale + 10 μV) |
| Resistance |
±0.5% of Full Scale |
| A/D converter |
Successive Approximation type, 16 bits (effective resolution: 1/40000 of the measuring full range) |
| Input impedance |
10 MΩ ±5% |
| Gauge ratio |
2.0 constant |
| Supported sensor |
Strain (*2) |
Strain gauge
Quarter bridge (single gauge) in 2-, 3- or 4-wire (supports remote sensing in 3- or 4-wire)
Half bridge (dual gauge) in 3-, 4-, 5-wire (supports remote sensing in 4- or 5-wire)
Full bridge (quad gauge) in 4- or 6-wire (supports remote sensing in 6-wire) |
Transducer/sensor based on a strain gauge
Full bridge type in 4-wire, Full bridge type in 6-wire (supports remote sensing) |
| Resistance |
Resistor, Potentiometer |
| Bridge resistance |
50 Ω to 10 kΩ * Available excitation power varies by selection of element. |
| Built-in element of the bridge |
120 or 350 Ω for the quarter- and half-bridge
* Available excitation power varies by selection of element. |
| Excitation power |
Voltage mode |
1, 2, 2.5, 5, 10 V DC
* Excitation voltage 5 and 10 V is available when bridge resistance is the 350 Ω or higher. |
| Current mode |
Constant current: 0.1 to 20 mA (supported voltage is up to 10 V.) |
| Zero Adjust for Strain gauge |
Method |
Fully automatic (via push button or setting the condition menu) |
| Max. Range |
±10,000με (με：10-6 Strain) |
| Remote sensing |
3- or 4-wire in quarter bridge, 4- or 5-wire in half bridge, 6-wire full bridge |
| Shunt Calibration |
Approx. 60 kΩ (120 Ω gauge), Approx. 175 kΩ (350 Ω gauge） |
| Maximum input voltage |
Between (+) / (-) terminal |
10 V,
Common-mode voltage: 10 Vrms AC |
| Between channels ((-) terminals) |
10 Vp-p |
| Between channel / GND |
60 Vp-p |
| Max. voltage (withstand) |
Between channels |
1000 Vp-p (1 minute) |
| Between channel / GND |
1000 Vp-p (1 minute) |
| Isolation |
Between channel / GND |
Min. 100 MΩ (at 500 V DC) |
| Common-mode rejection ratio |
Min. 80 dB (50/60 Hz, Signal source impedance: Max. 300 Ω) |
| Frequency response |
DC to 20 kHz |
| Filter |
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 |
IEEE 1451.4 Class2 (Temperate No.33) |
| Support |
Reading information from the sensor and setting it to module |
| External dimensions (W x D x H) |
Approx. 49 x 136 x 160mm (Excluding Protection) |
| Weight |
Approx. 840 g |
