Mettler Toledo M300 FLOW Especificações descarregar pdf (Página 32)

Transmitter M300 FLOW 32

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7.2 Sensor Calibration

This feature provides the ability to perform a One-point or Two-point Sensor ﬂow calibration and

”Edit” or ”Verify” saved calibration constants. The most common method of calibration for ﬂow

sensors is to enter the calibration constants appropriate for the sensor using the Edit function.

Some users may choose to perform an in-line calibration using a One-point or Two-point Sensor

ﬂow calibration. This requires an external reference system. When performing an in-line cali-

bration on a ﬂow sensor, results will vary depending on the methods and calibration apparatus

used to perform the calibration.

Select the channel (four channel models only) and the desired calibration option. Choices are

GPM, meters/hour or liters/minute (for a one-pt or two-pt ﬂow calibration), Edit and Verify. Press

[ENTER]

7.2.1 One point calibration

Select 1 point Calibration by pressing the  or  key followed by the [ENTER] key.

Enter the Value of calibration Point 1 from the external reference system and press the [ENTER]

key to start calibration. The value in the 2

text line is the actual measured value from the

sensor prior to calibration.

After the calibration, the slope (Multiplier) calibration factor M and the offset (Adder) calibration

factor A are displayed.

Select Yes to save the calibration values and the successful Calibration is conﬁrmed on the

display. Select No to discard the entered calibration. The meter retains the old calibration values

and returns to the Measurement mode.

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Mettler Toledo M300 FLOW Especificações Página 32