BetaGauge 301 Single Sensor Pressure Calibrator

Offering great performance at ±0.05% accuracy

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Great performance at an excellent price point

The 301 is a single pressure calibrator offering great performance at ±0.05% accuracy. It combines pressure with milliAmp and Voltage measurement capabilities, as well as built-in loop power supply to power transmitters under test. With an optional BPPA-100 adapter, the 301 can even use industry standard BetaPort-P high performance pressure modules. A large backlit display can be configured to show one, two or three variables. Another advanced feature not normally seen in this price range is the ability to easily perform switch tests. The calibrator automatically captures and displays set and reset values. Pressure readings can be displayed in a number of engineering units including PSI, inches of water (with selectable temperature compensation), Bar, mBar, cmH2O, kPa, and other including a user defined option. Other features include remote operation via RS-232 serial port; power from 4 AA alkaline batteries, standard carrying case and test leads. A range of pressure pumps and pump kits are also available for a full pressure calibration package. The BetaGauge 301 is supplied with carrying case, test leads, instruction manual, set of four AA alkaline batteries, and NIST certificate with data. Kits include the BetaGauge 301 Pressure Calibrator, carrying case, pneumatic pump, connections and fittings.

General Features

  • Full scale accuracy on all pressure ranges of ±0.05% FS
  • Temperature compensation ensure accuracy in the field with no effect over 18°C to 23°C
  • Standard available ranges – 1, 5, 30, 100, or 300 psi
  • 4-20 mA measurement input
  • DC Voltage measurement 0-30 V
  • Internal 24 V Loop Power Supply
  • Displays in 16 standard engineering units plus one user-defined
  • Large graphic LCD with backlight that can be configured to display 3 inputs simultaneously
  • External pressure module connection supports all BetaPort-P pressure modules
  • Switch test on pressure (internal or external)
  • Up to five frequently setup can be stored; last setup recalled on power-up
  • % Error and damping functions
Specifications (18°C to 28°C, unless otherwise noted)
Media Compatibility
Clean dry air or gas only
Engineering Units
psi, bar, mbar, kPa, kg/cm2, cmH2O@4°C, cmH2O@20°C, mmH2O@4°C, mmH2O@20°C, inH2O@4°C, inH2O@20°C, inH2O@60°F, mmHg@0°C, inHg@0°C, MPa, FT H2O@60°C plus 1 custom at time of order
All ranges±0.05 % FS
mA±0.015% of reading ±0.002mA
Volts±0.015% of reading ±0.002V
Temperature Effect
No effect on accuracy on all functions from 18°C to 23°C
Instrument Setup Recall 5; last used on power-up
Operating Temperature-10 °C to +50 °C
Storage Temperature-20 °C to +60 °C
Power Requirements6.0 VDC
BatteryFour (4) standard AA cells
Battery Life>35 hours, typical usage
Dimensions8.3” H x 3.9”W x 1.8”D 
(21.082 x 9.906 x 4.572 cm)
Weight1 lbs, 4 oz. (0.567 kg)
Connectors/Ports Pressure
One, 1/8” NPT
Two, std banana jacks
External BetaPort-P pressure module;

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