EUTECH INSTRUMENTS ALPHA PH1000 PHORP CONTROLLERTRANSMITTER Bedienerhandbuch PDF herunterladen (Seite 16)

Instruction Manual alpha-pH 1000

Note: If there is a calibration error, the controller displays “ERR”. If this happens, push both the ▲ and ▼

keys (escape) to restart the calibration beginning from step 1.

Note: When calibrating with manual temperature compensation, the controller automatically changes from

the preset process temperature to the calibration temperature. After leaving the Calibration mode, the

controller switches back to process temperature (for setting the calibration temperature and the process

temperature, see section 7.2.3).

6.2 ORP – mV Calibration

This mode allows one-point calibration.

1) Enter Calibration mode. While in Measurement mode, push

the CAL key and scroll to Calibration Code “11”. Push the

ENTER key. The upper and lower display reads “CAL OrP”.

Note: If the upper and lower display read “CAL PH”, see section

7.6.2 for procedures on how to switch from PH to ORP mV

readings.

2) Place sensor in the ORP solution.

3) Press the ENTER key to begin calibration. The “CAL”

indicator appears on the display. The upper display shows the

current mV output of the electrode without any offset

adjustment.

4) Press the ▲ or ▼ key to match the mV value to your exact

reading.

5) To confirm, press the ENTER key. The controller calculates

the correction factor and returns to the Measurement mode.

CAL

OrP

SETUP

HOLD

226

HOLD

CAL

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EUTECH INSTRUMENTS ALPHA PH1000 PHORP CONTROLLERTRANSMITTER Bedienerhandbuch Seite 16