SG-Amp with 8-Pole Low Pass Filter
For critical applications RAETECH's Strain Gage Amplifier (SGA) is available with an integrated 8-pole, low-pass, anti-alias, output filter. The filter can be customized at build time for your application. Gain and Offset are user configurable using the USB Programmer. Common configurations include 10Hz, 100Hz and 1kHz. Filters are built to order. A fixed gain of 1, filter only, variant is also available on request.
Specifications:
| Strain Gage Amplifier with Advanced Filter Option | ||||
| Electrical Output | ||||
| Gain Range | 3 to 1150, Programable* | |||
| Offset Range | 0.1 - 4.85 vdc | |||
| Low Pass Filter | 8-Pole Butterworth | |||
| Filter Type | Sallen-Key | |||
| Bandwidth | +/-0.03dB to 0.5Fc | |||
| Fc (-3dB) | Options: 10Hz, 100Hz, 1kHz, custom | |||
| Linear Output Range | 0.1v to 4.85v | |||
| Output Current Max | 25ma | |||
| Output Impedance | < 100 ohm | |||
| Output Offset Voltage | +/-3mv Typ. | |||
| Electrical Inputs | ||||
| Supply Voltage | 8.5 to 36 Vdc | |||
| Supply Current | 22ma w/ 350 ohm Bridge | |||
| Bridge Excitation Voltage | 5.000 ±0.001 vdc | |||
| Bridge Voltage Stability | 1.5 ppm/°C | |||
| Bridge Current - Max | 30 ma | |||
| Temperature | ||||
| Calibrated Range | -40 to 125°C | |||
| Functionally Tested | -80 to 200°C | |||
| Internal Measurement Accuracy | ±2°C | |||
| Remote Measurment Accuracy | User Calibrated | |||
| External Temperature Sensor | Diode or RTD | |||
| Protection | ||||
| E+ short to ground | Continuous ≤12 vdc supply | |||
| E+ short to ground | 5 sec ≤40 vdc supply | |||
| SIG+ Output short to ground | Continuous | |||
| Supply Voltage | Reverse Polarity Protected | |||
| Physical | ||||
| Enclosure | Alumninum | |||
| Dimensions | 44 x 16 x 13mm | |||
| Weight w/ Cables | ~47g | |||
| Cables, 18 inches ea. | 5-Conductor, Type 55 | |||
| Wire Colors | ||||
| Input | Output | |||
| Red | E+ | Red | Power | |
| Black | E- | Black | Ground | |
| Yellow | Sig+ | Yellow | Output | |
| Green | Sig- | Green | Program | |
| Blue | Ext. Temp | Blue | Ground | |
| Part Numbers | ||||
| Fc = 10Hz | 1169-01-50-840-N | |||
| Fc = 100Hz | 1169-01-50-840-J | |||
| Fc = 1kHz | 1169-01-50-840-A | |||
| Custom** | 1169-01-50-840-tbd | |||
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* Programmed to Customer Specification or User Configurable with optional Programmer ** Please consult Raetech for optional filter cutoff frequencies Preliminary Specifications, subject to change. |
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For Additional Information or to Order Load Sensing Products Please Contact:
RAETECH Corporation
4750 Venture Dr. Suite 100, Ann Arbor, MI 48108
Tel: 734-665-2215
E-mail:
