SI, Strain Gauge Sensor Interface
- 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
The sensor-interface SI is designed for the interface adaption between sensor and evaluation. The interference-prone output signals of strain gauge-sensors
are raised to a high level. Thus, the measurement safety and the measurement accuracy is crucially increased.
The excitation voltage range of 16...32 V DC and the analog outputs of ±10 V, resp. 0/4...20 mA allow the direct signal processing with a PLC Control. The sensor is powered with stabilized DC voltage which is generated from unregulated supply (16...32 V DC). The subsequent precision measuring amplifier converts the output signals of the sensor into standardized signals. Serially, the interface is being delivered with PG7 screw connections.
An universal and easy adaptation to different sensors is possible through a wide control range of the zero point and the amplification by determining the coarse adjustment through a switch and by fine adjustment with the potentiometers.
An optional external control signal excitation allows to activate the control signal in the sensor (if available) with a control signal, externally. By this, the adjustment and the subsequent evaluation can be checked at any time.
Furthermore, an input filter is adjustable with a potentiometer (to eliminate interferences, e.g. by frequency converters etc.).
| 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 |
| Supply Power | 16 - 32 V DC |
| IP Rating | IP 66 |
| SI-U10 | |
| SI-U5 | |
| SI-I0 | |
| SI-I4 | |
| SI-I10 | |
| SI-I12 |
SI, Strain Gauge to Analog Output Datasheet |
- 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 |