Varian Eyesys ConvecTorr™ Active Rough-Vacuum Gauge.
Varian’s Eyesys ConvecTorr Active Vacuum Gauge is a compact pressure-measurement solution that is economcal and reliable. It has a fast response to changing pressures between 1 mtorr and atmospheric pressure, which is made possible by maintaining the temperature of the filament at a constant level. All of this comes in a single package, with the transducer and the controller circuitry built in, eliminating the need for a more-expensive rack-mounted controller.
The Eyesys ConvecTorr Gauge offers two SPST set points for process control. The trigger levels are selected by a digital switch (which prevents drifting) to any of sixteen settings between 5 mtorr and 500 torr.
Another advantage of the Eyesys ConvecTorr Gauge is automatic calibration. This is initiated when the pressure is either at atmosphere or at <1 mtorr either by pressing a button on the case or by means of a low-voltage pulse from a computer or PLC.
The Eyesys ConvecTorr Gauge has these options:
- Pressure units in torr, mbar, or pascal
- Digital numeric display or no display
- Analog 1-volt-per-decade log-linear output or serial digital communications (RS232 or RS485)
- NW16 or NW25 KF vacuum flange
- Factory calibration to NIST-traceable standard
Technical Specifications
| Pressure range |
| torr |
1 × 10-3 to 760 |
| mbar |
1.33 × 10-3 to 1000 |
| Input power |
20 to 27 VDC @ 150 mA max. |
| Analog output signal |
1 VDC per decade log-linear |
| Digital communications |
RS232 or RS485 ASCII |
| Output impedance |
100 ohms |
| Minimum load impedance |
3.3 kohms |
| Set points |
Two SPST relays, 100 mA @ 40 VDC |
| Set point selections |
16 choices from 5 mtorr to 500 torr, via digital switch |
| Operating temperature range |
0 to 50 °C |
| Storage temperature range |
-15 to 70 °C |
| Electrical, safety certifications |
UL, cUL recognized, CE certified |
For more information, please visit this products webpage. |
