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Martel - BetaGauge PI-PRO Digital Pressure Calibration Test Gauge

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Manufacturer: MARTEL

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BetaGauge PI-PRO Digital Pressure Calibration Test Gauge

Digital Pressure Test Gauge. Single-Handed Process Validation


  • Manufactured by Martel Electronics
  • Ranges to 15,000 psig or 300 psia
  • Accuracy: ±0.05% F. S.
  • Temperature compensated over 0 to 50°C
  • Displays in 18 standard or fully custom engineering units
  • Large, back-lit, 5-1/2 digit display with 0.65" digits and 20 segment bar graph
  • CSA intrinsically safe, Class 1, Div. 2 Groups A, B, C & D; ATEX approved; CE approved
  • Available with optional 24V external power input
  • Optional pressure port location on back of gauge for panel mounting

For reference-class accuracy, see the Martel BetaGauge PIR Pro pressure gauge

The Martel BetaGauge PI Pro pressure gauge combines the accuracy of digital technology with the simplicity of analog gauges to achieve performance, ease-of-use, and a feature set unmatched in the pressure measurement world. Building upon the proven performance of the Martel BetaGauge PI, the PI Pro includes a new zinc-aluminum alloy high pressure cast housing to improve the environmental integrity of the gauge in a lighter and smaller, yet more rugged, package.

The BetaGauge PI PRO provides ±0.05% of full scale accuracy over pressure ranges to 15,000 psig or 300 psia. Additionally, two compound ranges are also available. Readings may be displayed in any one of 18 standard engineering units or in 1 custom user-defined unit to eliminate tedious conversion calculations.

The PI Pro includes a 5-1/2 digit digital display. The 0.65" numerals and companion bar graph provide an easy to read display, even from a distance. A number of features provide additional ease of use. The reading sample rate can be user adjusted to match the type of measurement required. Other features include MIN/MAX function, Auto Power Off and backlight control. In addition to a ZERO function that compensates for sensor drift, large residual system pressures can be nulled using the TARE adjustment.

Setting up the Martel BetaGauge PI Pro is fast and straightforward, through a menu-driven display, with minimal text and intuitive functions. A password-protected field calibration may be initiated through the keypad and an RS232 port allows pressure reading data to be extracted directly from the gauge for off-line analysis (requires Martel RS232 cable). Damping can be set to integrate readings to accommodate pulsating sources, such as plant air. An optional external 24 VDC power input is available for applications where the BetaGauge PI Pro will be permanently incorporated into a process line. A protective rubber boot is standard to help protect the BetaGauge PI Pro from damage when dropped.

The BetaGauge PI Pro is available in a self-contained calibration kit which includes a test pump (with MECP500 pneumatic test pump for ranges 500 psi and below or a MECP10K hydraulic test pump for ranges above 500 psi), test hose, fittings, rubber boot and carrying case.

Specifications (0 °C to +50 °C, unless otherwise noted) 

Input Pressure Ranges
10" H20*/20 mBAR; 1 psi*/70 mBAR; 15 psi/1 BAR, 30 psi/2 BAR; 100 psi/7 BAR; 300 psi/20 BAR; 500 psi/30 BAR; 1,000 psi/70 BAR; 2,000 psi/140 BAR; 3,000 psi/200 BAR; 5,000 psi/300 BAR; 10,000 psi/700 BAR; 15,000 psi/1035 BAR; -15 to +15 psi*; -15 to +30 psi*

Absolute Ranges
15 psia, 30 psia, 100 psia, 300 psia

±0.05% FS positive pressure

±0.01% FS for 1.0 psi

*Compound Range is Non-Isolated and compatible with Dry Clean Air and Gas Only*

Temperature Compensation

0 °C to +50 °C (32 °F to +122 °F) to rated accuracy

Vacuum accuracy of the compound range is 0.1% of the 30 psi full scale. Vacuum measurement not calibrated for other ranges.

Standard Engineering Units
PSI, Bar, Kg/cm, inH2O (4 °C, 20 °C or 60 °F), ft H2O (4 °C, 20 °C or 60 °F), cmH2O (4 °C and 20 °C), mH2O (4 °C and 20 °C), Kpa, mBAR, inHg, mmHg, TORR

Media Compatibility
Liquids and gases compatible with 316 stainless steel; except for ranges marked * above

Operating Temperature: -10 °C to +55 °C
Storage: -20 °C to +70 °C (-4 °F to +158 °F)

Dimensions: 4.375" x 5.0" x 1.50"
Input Port: 1/4" male NPT

5 Digits  -  0.65" (16.53 mm) height
Bar Graph  -  0 to 100% in 20 segments

Battery: Three (3), size AA alkaline batteries
Battery Life:
       1,500 hours without backlight;
       2,000 hours at slow sample rate;
       battery life can be displayed on bar graph to indicate the amount of time left
   Low Battery Indicator:
       displayed icon near the end of battery life
   Includes: manual, batteries

View the Data/Spec Sheet.
View the Manual.
Hardware Driver Download.
CSA Intrinsically Safe Certificate.
ATEX Intrinsically Safe Certificate.
Pressure Ranges & Resolutions.
Pressure Calibrator Comparisons.
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Martel - BetaLOG-PI™ Data Logging Application
The BetaLOG™ software is designed to log pressure data from the BetaGauge PI and BetaGauge PIR Pressure Gauges. BetaLOG™ configures the gauges to operate in the field (Demand Ad-hoc) or in Computer Mode (Download). The gauges store up to 9,520 measurement