140A & 142A, Inline Bridge Amplifier with Auto-zero


- ±1.5 mV auto-zero
- 140A for bridge type sensor, 142A for strain gages
- 5 to 30 VDC excitation
The Model 140A and 142A inline amplifiers are specialized for enhancing signal quality from bridge type sensors and strain gages, respectively. These devices come equipped with an auto-zero feature that can correct up to ±1.5 mV, ensuring high accuracy in measurements. Users can select from multiple gain settings (x10, 25, 50, 100, 200) to adapt to various signal levels, making these amplifiers versatile tools for a wide array of applications. They require a 5 to 30 VDC excitation voltage, accommodating a broad range of power supplies. The compact dimensions (57 x 25 x 13 mm) of these amplifiers make them an excellent choice for integration into instrumentation labs, test benches, and R&D facilities where space may be limited and precision is critical.
# of Inputs | 1 |
Excitation | 5 V DC |
- Instrumentation labs
- Test benches
- R&D facilities
- High Accuracy
- Fast Measurement of up to 5000 Measurements/s
- Optional 2 Channel Type with 0.3…3 mV/V or +5 V Input
- Fail-safe by digital Interface
- Adjustment and Control Signal Switch via Software
- Adjusted values in EEPROM logged
- Long Input Lead from SI/RS485 to Evaluation possible
- Applicable in heavy Industries by robust Aluminum Casting Housing
Input Type | Strain Gauge |
# of Inputs | 1, 2 |
Output Type | RS-485 |
Max Bandwidth | 2.5 kHz, 5 kHz |
Excitation | 5 V DC |
Isolation | No |
- Input Ranges, 2.2 - 44 mV
- Excitation, 5 or 10 Vdc selectable
- High Accuracy
- Voltage or Current Output
- Direct Connection to PLC
- Long Input Lead from SI to Evaluation possible
- Applicable in heavy Industries by robust Aluminum Casting Housing
- High Level of Protection IP66
Input Type | Strain Gauge |
# of Inputs | 1 |
Output Type | ±5 V DC, ±10 V DC, 0 - 20 mA, 4 - 20 mA |
Max Bandwidth | 1 kHz, 5 kHz, 10 kHz |
Excitation | 5 V DC, 10 V DC |
Isolation | No |
- High Accuracy
- Direct Connection to PLC
- Long Input Lead Possibility from LCV to Evaluation
- Voltage or Current Output
- Integrable in large Sensors as Board
- High Level of Protection IP67
- Tube housing; IP67
- Linearity; 0.02% F.S.
Input Type | Strain Gauge |
# of Inputs | 1 |
Output Type | ±5 V DC, ±10 V DC, 0 - 20 mA, 4 - 20 mA |
Max Bandwidth | 1 kHz |
Excitation | 5 V DC |
Isolation | No |