DatasheetDynisco 831, 851 & 861 Series General Purpose Pressure Sensors
The Dynisco 831, 851 and 861 Series pressure sensors are reliable general purpose transducers for a wide range of industrial applications. The sensors combine a flexible design with a measurement accuracy of ±0.25 % FSO including linearity, hysteresis and repeatability. This makes them suitable for applications requiring rugged and repeatable pressure measurement.
The interchangeable configuration allows users to specify the pressure range, pressure port and output level to meet the requirements of the application. Available pressure ranges extend from 0…100 psi to 0…30,000 psi. Depending on the model, output signals of 3 mV/V, 5 VDC or 10 VDC are available.
The sensors use a bonded strain gauge design and provide excellent temperature compensation. The compensated temperature range is 0…150 °F or -18…66 °C. Wetted materials are made of 17-4 PH and 15-5 PH stainless steel, while the cover material is 303 or 304 stainless steel.
| Type | General purpose pressure sensor for industrial applications |
|---|---|
| Series | Dynisco 831, 851 & 861 Series |
| Models | 831, 851 and 861 |
| Application | Reliable pressure measurement in a wide range of industrial applications |
| Pressure ranges | 0…100 psi | 0…250 psi | 0…500 psi | 0…1,000 psi | 0…1,500 psi | 0…2,500 psi | 0…3,000 psi | 0…5,000 psi | 0…7,500 psi | 0…10,000 psi | 0…15,000 psi | 0…30,000 psi |
| Accuracy | ±0.25 % FSO including linearity, hysteresis and repeatability |
| Full scale output model 831 | 3 mV/V ±0.5 % |
| Output models 851 / 861 | 5 VDC or 10 VDC |
| Input / output resistance model 831 | 350 Ω ±10 Ω |
| Internal shunt calibration | 80 % ±0.5 % FSO |
| Zero balance model 831 | ±2 % FSO |
| Zero and span adjustment models 851 / 861 | ±5 % FSO |
| Input voltage model 831 | 10 VDC recommended, 15 VDC maximum |
| Input voltage model 851 | ±12…±16 VDC or 24…32 VDC |
| Input voltage model 861 | ±14…±16 VDC or 24…32 VDC |
| Insulation resistance model 831 | 1,000 MΩ at 50 VDC |
| Insulation resistance models 851 / 861 | 100 MΩ at 50 VDC |
| Input current models 851 / 861 | 45 mA maximum at 2 kΩ load |
| Operating range model 831 | -65…250 °F / -54…120 °C |
| Operating range models 851 / 861 | -20…185 °F / -29…85 °C |
| Compensated temperature range | 0…150 °F / -18…66 °C |
| Temperature effect on zero | 831/851/861: ±0.005 % full scale/°F or ±0.009 % full scale/°C |
| Temperature effect on span | 831/851/861: ±0.005 % full scale/°F or ±0.009 % full scale/°C |
| Safe overpressure | 1.5 × rated pressure |
| Burst pressure 100…250 psi | 10 × rated pressure |
| Burst pressure 500…3,000 psi | 5 × rated pressure |
| Burst pressure 5,000…10,000 psi | 3 × rated pressure |
| Wetted material | 17-4 PH and 15-5 PH stainless steel |
| Cover material | 303 and 304 stainless steel |
| Weight models 851 / 861 | Approximately 17 ounces / approx. 482 g |
| Weight model 831 | 13 ounces / approx. 368 g |
| Key features | Flexible configuration, excellent temperature compensation, internal shunt calibration, bonded strain gauge sensor, stainless steel construction |
