Operating instructions

IES Corporation, 2324 SE 11
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Ave, Portland, OR 97214
PHONE: [phone] FAX: [phone] e-mail: [e-mail]
106
PC -- Temperature Compensation (continued) / Mettler
5. Notice that, when doing calibration temp. comp., you can get readings as
the instruments warms or cools. YOU MUST take a new reading of the
calibration after adjusting the pot, since the setting of the pot effects the
calibration.
6. Use a similar chart for zero-point temp. comp., but there will be no
weight on the pan during the adjustment procedure. It's important that the
instrument never be TARED during the zero-point, since that resets the
display to zero. The whole idea of the procedure is to maintain zero without
need of TARE.
Of course, you can only take readings of zero-point drift as the
instrument warms up, not when it's cooling off. The reason is that you have
to unplug the instrument in order to make it cool down, and that means it
will be re-tared when you power-up.