DigiVac Bullseye Piezo User Manual - Page 15

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Specifications

Vacuum Reference:

Sensor:

Resolution:

Units:

Accuracy:

Range

Mount

Display

Product Dimensions

Power

Compliance

Wetted Materials

Numeric and graphical displays

Bluetooth Capabilities (with Bluetooth

models)

Digital Graphs

7-foot Sensor Cable Length

Stability

Proof Pressure

Burst Pressure

Section 9:

Units of Measurement

This instrument is calibrated in microns or "millitorr." Understanding Microns: Microns are not really

a measure of vacuum at all, but rather of absolute pressure.

The pressure of the atmosphere is 14.696 or approximately 14.7 pounds per square inch at sea

level. One

TORR

is an absolute pressure of one millimeter of mercury. A

thousandth of a TORR. A

This pressure is due to the weight of all the air in the earth's atmosphere above any specific square

inch. Note: 14.696 PSI is equivalent to the pressure produced by a mercury column approximately

29.92 inches high or .76 meters (~ 3/4 of a yard) or 760 millimeters of mercury.

Atmospheric pressure varies greatly with altitude. It decreases approximately 1 inch of mercury per

thousand feet of altitude. It also varies with local weather conditions. (Variations of 0.5 inches in a day

are common.) The word "vacuum" means pressure lower than atmosphere. However, in describing

negative pressure, the atmosphere is only a satisfactory reference if we are dealing with vacuum levels

Absolute

Piezo P/N SEN-775i-NPT

+/- 0.1 Torr, +/- 0.01 inches Hg

Torr, microns, mbar, bar, kPa, inches of Hg, mm Hg,

millitorr, inches of water, PSI, Pa

+/- 2 Torr, +/- 0.08 mbar

1 to 775 Torr, -29.88 to 0.59 inches Hg

Desktop, Desktop with kickstand or strong magnet

Graphical with LCD

6.2" x 3.7" x 1.3"

4 AA batteries or Micro-B USB

CE and RoHS

316SS

See your vacuum readings in either numbers or easy to read graphs

Receive your pressure readings on your phone or tablet with the

DigiVac app

Easily view line graphs and time horizon of 2 minutes and 2 hours

Long cable length for portability and field use

+/- 0.25% per year

60 PSI

200 PSI

MICRON

is the same as a millitorr.

1 0 2 0 C a m p u s D r i v e W e s t , M o r g a n v i l l e , N J 0 7 7 5 1

7 3 2 - 7 6 5 - 0 9 0 0

millitorr

s a l e s @ d i g i v a c . c o m w w w . d i g i v a c . c o m

is equal to one