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DigiVac Accuracy

Any gauge that leaves our factory is tested under actual vacuum in our manifold, and will be calibrated against a NIST traceable standard.

Bullseye Precision GaugeTM Pirani

Range: 1 millitorr – 50 Torr, 0.001 mb – 66 mb

5 millitorr to 50 millitorr +/- 15%

50 millitorr to 30 Torr +/-7%
Temperature Error: +/-2% from 0-40C from 100 millitorr to 20 Torr

 

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  801-ac, 801w, 801w2cTracVac

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 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, VPCModel 450)

Range: 1.0 – 775 Torr

1 to 775 Torr +/-2 Torr

 

Non-Isolated Transducer gauges (Piezo Torr Manometer, 2L760 series)

Range: 1.0 – 760 Torr

1 to 20 Torr +/-1 Torr

21 to 760 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