Description
This 775i is an isolated piezo vacuum sensor (transducer) that comes with an industry standard M12 connector and has resolution below 1 Torr.
- Isolated piezo sensor with only 316 SS for wetted material
- Rugged stainless steel sensor that is hermetically sealed to insure zero leakage
- 1/8″ male NPT vacuum fitting, easily adaptable to KF
- Measure 1 – 775 Torr without a capacitance manometer
- Industry standard 5 volt sensor and rugged M12 connector
Applications:
- The 775i isolated piezo vacuum sensor can be used when an inches of mercury dial gauge lacks the resolution around 20 Torr
- This absolute sensor is often used as an inexpensive alternative to a capacitance manometer
- Isolated piezo sensor used in manufacturing environments to trigger equipment on or off
- Could be used for load lock chamber lights to note a pressure below 5 Torr
- For turning on an industrial vacuum blower at 25 Torr
- Sensor approaches the accuracy that is required to know where water boils at ambient temperature during a vacuum drying process
Pressure Range: 2 – 775 Torr, 2.6 -1033 mbar, 15 PSIA
Total Error Band: +/- 1% of Full Scale Output, +/- 2 Torr
Vacuum Interface: 1/8” Male NPT but can be easily converted to KF using a female KF16 or KF25 adapter
Pressure Overload: 60 PSIA
Read the 775i Isolated Piezo Sensor Data Sheet here
DigiVac 775i Equations:
| Volts | Torr | mbar | PSIA |
| 0.5 | 0 | 0 | 0 |
| 0.51 | 1.9 | 2.5 | 0.04 |
| 1 | 95 | 126.6 | 1.84 |
| 2 | 285 | 379.9 | 5.51 |
| 3 | 475 | 633.1 | 9.19 |
| 4 | 665 | 886.4 | 12.86 |
| 4.49 | 758.1 | 1010.5 | 14.66 |
| 4.5 | 760 | 1013 | 14.696 |
| m | b | Full equation | |
| Torr Equation: | 190 | -95 | Vac.Torr=m*Volts+B |
| mbar equation: | 253.25 | -126.625 | Vac.mbar=m*Volts+B |
| PSIA equation: | 3.674 | -1.837 | Vac.PSIA=m*Volts+B |
