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Handheld process control calibrators

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article image Process calibrator housed in flame-retardant, dust and splash-proof housing.

INSTROTECH has released three handheld process control calibrators.

Calog Loop is a loop calibrator for measuring, sourcing and simulating milliamps, and to measure voltage and to test for continuity. Calog TC is a thermocouple calibrator with the functions of the loop calibrator, plus measurement and sourcing of millivolt and all commonly used types of thermocouples. Calog PRO is a process calibrator with the functions of the loop calibrator, plus measurement and sourcing of millivolts, volts, counts, and frequency.

These models offer a range of functions including display of actual value, percentage, trend logging, increment, auto step, auto ramp, and valve stroking. All versions have built-in transmitter power supplies, and are designed for use with sensors, transmitters, PLCs, and SCADA systems. The key-per-digit function simplifies numeric selection by means of five up/down keys.

The units have a built-in rechargeable NiMH battery that gives 20 hours of continuous operation. Fuel gauge chip technology, developed for mobile telephones, measures the battery current and voltage. All models have an accurate display of the battery condition in percentage.

Each unit has a durable, non-slip rubber boot. The basic housing design, keypad layout and operation is common to all models, while the terminal connection plate is interchangeable to accommodate the various versions. Calog calibrators are housed in UL94 V-O flame retardant ABS plastic housings with an IP54 dust and splash-proof rating.

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