Supco Sealed Unit Parts Co. DPG25V Manual

99 Washington Street
Melrose, MA 02176

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Toll Free 1-800-517-8431

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Sealed Unit Parts Co., Inc.

DPG25V

Digital Pressure Gauge

Manual

DPG25V
P/N 20437

4

05072014

Operating Instructions

The DPG25V is a microcontroller based, digital pressure
gauge that can be used with any gas, liquid or
solid that is compatible with 17-4 PH stainless steel.

The DPG transducer is a one-piece high strength stainless
steel construction that uses no silicone oil, no welds,
no o-rings or seals making it ideal for pressure
measurements of all kinds.

All functions of the DPG are controlled from 3 front panel
push buttons located below the display. Each button has a
specific function as described below.

POWER: Press and release this button to turn the

DPG ON or OFF. The DPG will automatically
turn OFF after one hour to conserve battery
power.

ZERO: Press and release this button to place the

DPG in RELATIVE PRESSURE mode.
When the button is pressed, the display will
read ZERO instead of the pressure
measurement. Subsequent display readings
will be +/- realtive to the original pressure.

UNITS: Press this button to cycle through the UNITS

of measurement the DPG25V can display.
The DPG25V can measure pressure in PSI and

InHg. This can be changed at any time and
will not affect the operation of the DPG.

ZERO SET: Over the course of time it may become

necessary to reset the DPG to zero.
This is a special function of the DPG and
can only be done at zero pressure.
Press and hold the POWER and ZERO
buttons simultaneously until the display
reads “ZERO SET”. Release both buttons
and the display will read zero pressure in the
current pressure units selected.

LOW BATTERY: The DPG will display a “B” in the upper right

corner of the display to indicate the battery
is nearly discharged and the DPG will
shortly cease operation. For best results
replace the battery immediately and use only
Alkaline or Lithium 9V batteries.

DPG25V

Product Specifications

Pressure Range -30 to 51 InHg (-14.7 to 25 PSI)
Measurement Units InHg, PSI
Resolution

PSI 0.1
InHg 0.01
Accuracy < ± 0.5% Full Scale

(includes Non-linearity,

Hysteresis and Non-repeatability)
Stability (1 year) ±0.25% Full Scale (typ)
Overange Protection 102 InHg (50 PSI)
Burst Pressure 255 InHg (125 PSI).
Pressure Cycles >100 Million
Operating Temperature Range 32°F to 130°F (0°C to 55°C)
Storage Temperature Range -40°F to 150°F (-40°C to 65°C)
Compensated Temperature Range 32°F to 130°F (0°C to 55°C)
Temperature Compensation Zero <±1.5% of Full Scale
Temperature Compensation Span <±1.5% of Full Scale
Pressure Sensor Connection 1/8” NPT Female
Update Rate 3 Samples per Second (typ)
Power 9-Volt Alkaline Battery
Automatic Power Off 1 Hour
Battery Life 100 Hours Continuous Operation (typ)
Case Material Polycarbonate

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