Fluke 729 automatic pressure calibrator

The Fluke 729 automatic pressure calibrator simplifies the calibration of pressure instruments by automatically generating precise test pressures, improving calibration integrity by compensating for leaks and automatically documenting the pressure calibration process. Technicians input a target pressure and the calibrator pumps to the desired setpoint while the internal control stabilises the pressure at the requested value, delivering more accurate results and speeding the calibration process.

The 729 features automatic pressure generation and control for multiple tests to 300 psi (20 bar, 2 MPa). Users can fill in a test template and the 729 automatically pumps to and documents a multiple-point pressure calibration test. Easy calibration documentation can be generated using defined templates for transmitters and switches. Users input the starting and ending test pressures and number of test points and the calibrator documents the applied pressure, measured mA and percentage error for each test point. The bright colour graphical display flags out-of-tolerance test results in red.

HART communication enables mA output trim, trim to applied values and pressure zero trimming of HART pressure transmitters, eliminating the need for an additional HART calibrator. Technicians can also perform light configuration tasks such as changing a transmitter tag, measurement units and ranging. The Fluke 729 also provides measurement of mA signals on transmitter outputs and sourcing and simulation of mA signals for testing I/Ps and other mA loop devices. It includes a 24 VDC loop power supply for testing and powering transmitters in standalone tests disconnected from the control system.

Originally published here.