EUTECH INSTRUMENTS ALPHA COND 500 - REV 4 Specifikace stáhnout pdf (Strana 51)

Transmitter Cond/Res 2-Channel M300 51

Printed in Switzerland 52 121 318

11.2 Calibrate

(PATH: Menu/Service/Calibrate)

This menu has the options to calibrate the transmitter and the analog outputs and also allows

the unlocking of calibration functionality.

11.2.1 Calibrate Meter

The M300 transmitter is factory calibrated within speciﬁcations. It is not normally necessary to

perform meter re-calibration unless extreme conditions cause an out of spec operation shown by

Calibration Veriﬁcation. Periodic veriﬁcation/re-calibration may also be necessary to meet Q.A.

requirements.

The meter is equipped with ﬁve (5) internal ranges of measurement on each channel. Each

resistance range and temperature is calibrated separately, with each resistance range consisting

of a two-point calibration and the temperature using a three-point calibration.

Below is a table showing the resistance values for all calibration ranges.

Range: Point 1 Point 2 Point 3

Resistivity 1 1.0 Mohms 10.0 Mohms –

Resistivity 2 100.0 Kohms 1.0 Mohms –

Resistivity 3 10.0 Kohms 100.0 Kohms –

Resistivity 4 1.0 Kohms 10.0 Kohms –

Resistivity 5 100 Ohms 1.0 Kohms –

Temperature 1000 Ohms 3.0 Kohms 66 Kohms

It is recommended that both calibration and veriﬁcation be performed using the M300 Calibrator

Module Accessory (refer to accessory list, in section 15). Instructions on the use of this acces-

sory are provided with the calibrator module.

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EUTECH INSTRUMENTS ALPHA COND 500 - REV 4 Specifikace Strana 51