eutech-instruments alpha ph 200 phorp controllertransmitter Manuale Utente

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7  ORP CALIBRATION 
mV (ORP) values may be offset at up to ±150 mV to agree with a calibration 
solution or an established work standard. 
 
1. 
Key in the password “011” as per procedure described in Section 5. 
2. 
Controller will blink with uncalibrated mV output of your electrode. 
3. 
Determine the mV value of your solution with an accurate meter (such as the 
pH 6). 
4. 
Press the ▲ or ▼ keys to offset the mV value on the controller display to 
match the value of the solution you are measuring. 
5. 
Press ENTER. The display flashes “DONE”. Press ENTER again to return to 
measurement mode. 
 
NOTE: You can view the mV offset in the Setup program, P5.0. 
 
180
200
done
ENTER