DigiVac Accuracy Specifications | Any gauge that leaves our factory is tested under actual vacuum on our validated manifold, and will be calibrated against a NIST traceable standard. Each vacuum gauge and controller that we manufacture is pre-tested and comes calibrated with the sensor being mated to the controller for optimal accuracy. If you require NIST certification with your gauges or controllers, you can add this to your order and your gauge will be shipped with before and after NIST data and documentation. See more about our calibration expertise and process here.
Instruments with Agilent/Varian 531 or Equivalent Tube:
Bullseye Precision GaugeTM
Range: 1 millitorr – 800 Torr, 0.001 mb – 1064 mb
1~99 millitorr +/- 2 millitorr or 20%
100~2000 millitorr +/- 10%
2 ~ 6 Torr +/- 25%
Above 6 Torr – continuous and monotonic (increasing reading indicates increasing pressure)
215V, Model 801w-ac, 801w, 801-w2c, TracVac
Range: 0.001 – 760 Torr
0 to 0.009 Torr +/-0.002 Torr
0.010 – 2.00 Torr +/-10% of reading
2.00 Torr to 5 Torr +/- 1 Torr
Above 5 Torr – continuous and monotonic (increasing reading indicates increasing pressure)
Model 200
Range: 0.001 – 760 Torr
0 to 0.009 Torr +/-0.002 Torr
0.010 – 2.00 Torr +/-15% of reading
2.00 Torr to 5 Torr +/- 1 Torr
5 – 760 Torr – Continuous and monotonic
Note the Model 200m has same accuracy, but a limited range of 1-1999 microns.
Instruments with DV-6M tube: 100H, 215H
Range: 1 – 2000 millitorr
0 to 9 millitorr +/- 1 millitorr
10 to 500 millitorr +/- 10% of reading
500 to 999 millitorr +/- 15% of reading
Isolated Transducer gauges (Bullseye Piezo, VPC, Model 450)
Range: 1.0 – 775 Torr
1 to 775 Torr +/-2 Torr
Combination gauges (276 series)
0 to .009 Torr +/- 1 milliTorr
0.010 to 0.099 Torr +/- 7% of reading
0.100 to 2.5 Torr +/- 10% of reading
2.5 to 20 Torr + /- .5 Torr
21 to 400 Torr +/- 2.0 Torr
401 to 760 Torr +/- 1 Torr
Active Gauge Controller (StrataVac series)
The accuracy of the vacuum measurement depends chiefly on the accuracy of the active gauge used. Below are the Accuracy in the primary range of interest. Refer to the active guage data sheet for full range and accuracy over full range. We offer the ability to control 1-3 of the following capacitance manometers and active gauges:
Pfeiffer PKR 251 Cold Cathode combination Pirani
Setra 730 Capacitance Manometer: 0.5% of Reading
MKS 722 Capacitance Manometer: 0.5% of Reading
Alcatel ACC2009: 50% of Reading
Varian PCG 750: +/- 15% of Reading
Varian PVG 500: +/- 15% of Reading
Do you have any questions about DigiVac Accuracy Specifications? Please contact us for more information.
