DR7DC, DC Powered Strain Gauge Transducer Amplifier
- DIN rail mounting Amplifier, Strain Gauge Transducer Amplifier
- Compatible with most full bridge strain gauge transducers
- Provide variable excitation and signal amplification
- Screw terminal connections
- Simple controls for gain and zero adjustment
- Input zero switch
- Continuous variation of excitation
- Input/output isolation
- Voltage / 4-20mA output
- Thermoplastic Case
- IP 20 rating
The DR7DC is a single channel DC amplifier intended to provide variable excitation and signal amplification for strain gauge type transducers. It provides up to 10V output (or 4-20mA) with transducer signals from 10 mV to 10V. This allows operation with some high output transducers (DCTH, etc); for example, to provide 4-20mA outputs with signal inputs up to 10V.
This unit accepts both uni-polar (eg. 0 to 4mV) or bi-polar (eg +/-4mV) input signals and can produce corresponding uni-polar or bi-polar voltage outputs (ie 0 to 10V or +/-10V). Sensitivities and gains given in this document refer to both. Current outputs (4 to 20mA) are uni-polar.
The DR7DC incorporates a DC-DC converter ensuring that the output of the unit is electrically isolated from the supply.
The unit is housed in a DIN-rail mounting thermoplastics case with recessed screw-clamp terminals for all connections and 25-turn front-panel-accessible, zero and fine gain adjustments. There is also a front panel push switch and a facility to connect remotely an internal shunt calibration resister.
All other controls are internal including excitation coarse gain and switches to filter the output.
| Input Type | Strain Gauge |
| # of Inputs | 1 |
| Output Type | 0 - 10 V DC |
| ±10 V DC | |
| 4 - 20 mA | |
| Max Bandwidth | 5 kHz |
| Isolation | Yes |
| Supply Power | 9 - 36 V DC |
| IP Rating | IP 20 |
DR7DC Datasheet Datasheet |
DR7DC Manual Tech Note |
- High Accuracy
- For Switch Cabinet Assembly, Width 23 mm, only
- Direct Connection to PLC
- Long Input Lead from GM 40 to Evaluation possible
- Easy to operate
- Voltage or Current Output
- DIN Rail Mount
- Rating: IP20
| Input Type | Strain Gauge |
| # of Inputs | 1 |
| Output Type | ±5 V DC, ±10 V DC, 4 - 20 mA |
| Max Bandwidth | 1 kHz, 5 kHz, 10 kHz |
| Excitation | 5 V DC, 10 V DC |
| Isolation | Yes |
- Transmitter for strain gauge
- Programmable analog output: 0/4-20 mA, 0/5 mA, 0/2/5/10 V, ±10 V
- Measurement rate up to 7200 measurements per second
- Teach-in, tare, linearization, and digital filters
- Quick configuration via DIP switch or PC
- Galvanic isolation: 2.5 kVAC
- Power supply: 10-30 VDC/24 VAC
- RS485 and Ethernet communication protocols
| Interface | USB |
| Input Type | Strain Gauge |
| # of Inputs | 1 |
| Output Type | 0 - 2 V DC, 0 - 5 V DC, 0 - 10 V DC, ±10 V DC, 0 - 5 mA, 0 - 20 mA, 4 - 20 mA, RS-485 |
| Excitation | 10 V DC |
| Isolation | Yes |
- Transmitter for strain gauge
- Isolated Versions Available
- USB Connectivity for easy calibration
- DAQ Mode with a measuring rate - up to 7500 measurements per second
- 2 Button teach-in for Potentiometer
- Teach-in, allows easy setting of both min. and max. of the measuring range
- Output: 4…20 mA/0…10 V
- Power supply 18…30 VDC
| Interface | USB |
| Input Type | Strain Gauge |
| # of Inputs | 1 |
| Output Type | 0 - 10 V DC, 4 - 20 mA, RS-485 |
| Excitation | 10 V DC |
| Isolation | Yes |
- Strain Gauge & Potentiometer Input Amplifier
- 50 V Continuous Isolation
- Accuracy: ± 0.05%
- DIN Rail Mounted
- In-Line Amplifier (Option)
- Aluminum Housing
- Protection Class: IP40
| Input Type | 0 - 10 mV DC, 0 - 100 mV DC, 0 - 1 V DC, 0 - 10 V DC, ±10 V DC, Potentiometer, Strain Gauge |
| # of Inputs | 1 |
| Output Type | ±5 V DC, ±10 V DC, 0 - 20 mA, 4 - 20 mA |
| Max Bandwidth | 1 kHz, 4 kHz |
| Excitation | 2.5 V DC, 5 V DC, 10 V DC |
| Isolation | Yes |
- Strain Gauge Input Module
- 1500 V Transformer Isolation
- True 3-Way Isolation
- Accuracy: ± 0.03%
- DIN Rail Mounted Module
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protected to 240 V AC Continuous
| Input Type | Strain Gauge |
| # of Inputs | 1 |
| Output Type | 0 - 10 V DC, ±10 V DC, 0 - 20 mA, 4 - 20 mA |
| Max Bandwidth | 3 kHz |
| Excitation | 3.33 V DC, 10 V DC |
| Isolation | Yes |