Practical-instrument-electronics 850 Bedienungsanleitung PDF herunterladen (Seite 26)

Page 24

Preliminary

Simulate pH probes into transmitters & analyzers

Use the pH simulator to verify proper operation of pH devices

before you place a probe into a calibrated buffer. Adjusting the

pH transmitter or analyzer without a probe allows you to make

sure the device is calibrated and operating correctly. The 850

simulates 0.000 to 14.000 pH @ 25°C corresponding to 414.12

to -414.12 mV.

Once the pH instrument has been adjusted against the PIE 850

reconnect the pH probe and check it against the proper buffer

(typically 7 pH). If the instrument zero point requires more than

the manufacturer’s recommendations (typically within 0.5 pH) it

is time to clean or replace the probe.

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Practical-instrument-electronics 850 Bedienungsanleitung Seite 26