The Fluke 744 Logging Process Calibrator calibrates temperature, pressure, voltage, current, resistance, and frequency. The three operating modes of Measure, Source, or simultaneous Measure/ Source, allows for troubleshooting, calibration, or instrumentation maintenance with just one tool. Programmable calibration routines enable the user to create and run automated as-found/as-left procedures. The AutoStep function sets the calibrator for a delayed start and a specific sequence of steps, so it can run unattended as a continuously varying test source. Limit switch calibration procedures perform fast, automated calibration of one and two-point limit switches for voltage, current, temperature, and pressure. A built-in algebraic calculator with four functions stores, recalls, and performs calculations required for setting up instruments or evaluating data in the field and a RS-232 interface enables the transfer the results to a PC.

• Measure volts, mA, RTDs, thermocouples, frequency, and ohms to test sensors, transmitters and other instruments
• Source/simulate volts, mA, thermocouples, RTDs, frequency, ohms, and pressure to calibrate transmitters
• Power transmitters during test using loop supply with simultaneous mA measurement
• Measure/source pressure with combined with a pressure module
• Create and run automated as-found/as-left procedures
• Holds up to a full week of downloaded procedures and calibration results
• Autostep, custom units, user entered values during test, one-point and two-point switch testing, square root DP flow testing, programmable measurement delay etc
• Handling of fast pulsed RTD transmitters and PLCs, with pulses as short as 1 ms

HART Capabilities

• Requires no external box or second tool for everyday HART calibration and maintenance.
• Supports popular models of HART transmitters, with device-specific command support
• Works with multiple masters, burst mode, and multi-drop configurations.
• Interrogate to determine device type, manufacturer, model, tag.
• Reconfigure the sensor mapping of dual sensor temperature transmitters.
• Read HART PV function and smart transmitter digital output while measuring analog mA output.