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Portable pH Meter and Calibrator for Digital Transmitters.

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article image The digital calibrator is an absolute necessity for calibrating field transmitters

Hanna Instruments has released a portable ph meter and calibrator for digital transmitters.

The digital calibrator is an absolute necessity for calibrating field transmitters. Calibration of process instrumentation over long distances is now made quick and simple with the introduction of the HI 504920. The HI 504920 is a hand held portable instrument for the measurement of pH/ORP and temperature and it functions as a reference pH meter by which to calibrate the new HI 504910 transmitter. Quick, single-point calibration is performed in three simple steps: 1 Connect the calibrator to the transmitter by means of the special cable, HI 7290. 2 Immerse the calibrator electrode in a sample of the process solution taken as close as possible to the installed process electrode. Wait for the signal to stabilize. 3 Press a button to transfer the data to the transmitter, and wait for confirmation on the display. The operator can now store the reading on the portable meter and later connect the calibrator to the transmitter in order to calibrate the system.

HI 504920 is supplied complete with HI 62920 pH electrode, HI 7920 interface cable, pH 4 and pH 7 buffer solutions, batteries, 12 Vdc power adapter, rugged carrying case and instructions.

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