EUTECH INSTRUMENTS ALPHA COND 500 - REV 4 Spezifikationen PDF herunterladen (Seite 24)

Transmitter Cond/Res 2-Channel M300 24

Printed in Switzerland 52 121 318

7 Sensor Calibration

(PATH: Cal)

The calibration key  allows the user one-touch access to sensor calibration and veriﬁcation

features. When performing calibration on a conductivity or resistivity sensor, results will vary

depending on the methods, calibration apparatus and/or quality of reference standards used to

perform the calibration.

7.1 Enter Calibration Mode

While in Measurement mode press the  key.

Press the  or  key to select the type of calibration desired. The options are ‘Meter’, ‘Analog’,

and ‘Sensor’.

NOTE: Dual channel transmitters allow ONLY the calibrate sensor option in the default

mode. For access to all calibration functions see section 11.2.3.

After selecting ‘Sensor’, press Enter and the cursor moves to the next line to select the desired

Sensor Calibration task, The choices are ‘Conductivity’, ‘Resistivity’, ‘Temperature’, ‘Edit’ and

‘Verify’. A ﬂashing ‘H’ in the upper left corner of the display indicates a calibration is in process

with a Hold condition active.

After selecting the desired sensor calibration and pressing Enter, the next screen will ask to select

the type of temperature compensation mode desired during the calibration process. The choices

are ‘None’, ‘Standard’, ‘Light 84’, Std 75ºC’, Linear = 02.0%/ºC’ (user selectable value),

‘Glycol.5’, ‘Glycol1’, and ‘Alcohol’.

7.2 Conductivity/Resistivity Calibration

This feature provides the ability to perform a one-point or two-point Conductivity or Resistivity

‘Sensor’ calibration. The procedure described below works for both types of calibrations. There is

no reason to perform a two-point calibration on a two-electrode conductivity sensor. Four elec-

trode sensors do require a two-point calibration. It is also not practical to calibrate resistivity

sensors using (low conductivity) reference solutions. It is recommended that resistivity sensors

be sent back to the factory for calibration. Consult factory for assistance.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 63 64

Keine Kommentare

EUTECH INSTRUMENTS ALPHA COND 500 - REV 4 Spezifikationen Seite 24