Multifunction documenting calibrator
Staff -- Test & Measurement World, 11/1/2004
MasterCAL 990 provides extensive calibration and HART configuration/communication functionality in a single hand-held instrument. Intended for field use, MasterCAL 990 measures and sources thermocouple, RTD, ohms, voltage, current, pressure, and frequency, displaying measurements in engineering units, percent of scale, square-law inputs, or custom units. It also provides auto-step and ramp functions on all outputs and ranges. The calibrator's 200T240-pixel, bright-white backlit LCD produces simultaneous input and output split-screen display. Martel Electronics, Londonderry, NH; www.martelcorp.com.
