Digital Pressure Gauges (DPI 104 Series)
Product Overview

The DPI 104 is a microprocessor-controlled digital pressure gauge that combines precision and functionality in a compact, robust, and simple-to-use package. The DPI 104 matches advanced silicon sensor technology with several convenient design features, resulting in an accurate, versatile yet affordable digital test gauge. Supplied as a stand-alone process indicator or in a kit with the widely proven Druck hand pumps, the DPI 104 provides a reliable and economic solution for a wide range of pressure sensing applications.

The Druck DPI 104-IS model is the Intrinsically Safe (IS) version for use in hazardous environments.

Features Include:

  • 0.05% full scale (FS) accuracy
  • Pressure ranges to 20,000 psi (1,400 bar)
  • Eleven selectable pressure units
  • Large, easy-to-read display with a five-digit resolution
  • % pressure indication and additional bar graph for quick visual reference
  • Temperature-compensated accuracy from 14°F to 122°F (-10°C to 50°C)
  • 0 to 5V analog output
  • Pressure switch test
  • Minimum/maximum, tare, and alarm functions
  • IDOS compatible and RS232 serial interface
  • Free of charge monitoring and control software
  • Stainless steel or Inconel pressure cavity for aggressive media
druck dpi 140 pressure gauges

0.05% FS including non-linearity, hysteresis, repeatability, and temperature effects from 14°F to 122°F (-10°C to 50°C)

Burst Pressure

Burst pressure is 2x working pressure (exception, 20,000 psi (1,400 bar); burst pressure 29,000 psi (2,000 bar).

Selectable Pressure Units

kPa, MPa, kg/cm2, psi, mbar, bar, inHg, inH2O, mH2O, mmH2O and mmHg


Pressure reading: 5 digits with 0.5 in (12.7 mm character height

Full-scale indicator: 2.5 digits with 0.25 in (6.35 mm) character height.

Pressure Bar Graph

In addition to the numeric pressure indication, the DPI 104 LCD display contains a circular twenty segment bar graph to provide the user with a quick visual estimation of pressure from 0 to 100% full-scale output. The bar graph increments represent 5% of the user-selectable range.

Minimum/Maximum Values

The minimum and maximum pressure values can be displayed on the DPI 104. This function can be enabled/disabled, and reset by the user.

Switch Test

The DPI 104 features a switch test function that will capture and display the open and closed values from an external pressure switch. Maximum switch impedance 200 Ω.

Voltage Output

The DPI 104 can be programmed to provide a 0 to 5 V output signal that can be configured as directly proportional to the pressure shown in the display or set to a fixed value. The voltage output mode provides 0.1% FS accuracy from 50 mV to 5 V.

Alarm Output 

The alarm output consists of an open drain field-effect transistor (maximum current 250 mA, maximum voltage 24 VDC)

Adjustable Mounting Positions

For added convenience, the DPI 104 housing will rotate 320° around the pressure fitting and the faceplate can be rotated in any orientation for optimum visibility.

Menu Lock

To guard against unauthorized menu access, the DPI 104 features a menu and tare lock function

Pressure Ranges

The DPI 104 can accommodate pressure ranges up to 20,000 psi (1,400 bar) with 0.05% full scale (FS) accuracy.

dpi 104 digital test gauge pressure ranges

The SiCalPro Software package allows the user to control the DPI 104 remotely through a virtual instrument panelon the computer screen. The calibration data can be logged, viewed, and printed in graphical format or as a calibration certificate. SiCalPro is free to download at the link below. Note: the Option (B) PC serial lead is required and the Option (A) external power supply is recommended.