eutech-instruments alpha ph 190 18 din phorp controllertransmitter 사용자 설명서

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4  MEASUREMENT MODE 
The 
αlpha pH 190 controller is capable of taking pH (or ORP) measurement with 
Automatic (ATC) or Manual (MTC) Temperature Compensation.  
The measurements are displayed distinguishingly by the annunciators on the front 
panel.  
4.1  Measurement mode display 
Press the MODE key to toggle between pH (or ORP) and Temperature 
measurement mode. 
 
pH (ORP) measurement mode 
The controller starts up in the mode when last powered off (pH or ORP).The pH (or 
ORP) annunciator will light up. 
For selection of pH or ORP measurement mode, see Setup program P3.1. 
 
Temperature Measurement mode 
Press MODE key once to view the temperature measurement. The °C annunciator 
lights up. The display shows ATC or MTC, then the current measured temperature.  
For selection of temperature compensation ATC or MTC, see Setup program P3.3. 
 
NOTE: After pressing the MODE key to display Temperature, if there is no further 
key-press, the controller will automatically revert to pH (ORP) measurement mode 
after about 30 seconds. 
4.2  Set Points Adjustments 
You can make quick set points adjustments with the
 
direct access of the Set Points 
adjustment modes (SP1 and/or SP2). By just pressing the SP1/▲ or SP2/▼key, 
you can enter the Set Point adjustment mode and set a new pH (or ORP) value 
that will cause your controller to activate.   
 
Set Point 1 (SP1) adjustment mode  
This lets you adjust the pH (or ORP) value in Set Point 1. If this value is crossed, 
the set point relay 1 LED will light. 
1. 
Press the SP1/▲ key. The screen will scroll P1.1, SP1, and then the current 
set point value. 
2. 
Press the ▲ or ▼ keys and adjust first relay set point. You can adjust it in 
0.01 increments from 0.00 to 14.00 pH (-999 to 1000 mV). 
3. 
Press ENTER to confirm and return to the measurement mode. 
 
NOTE: Press ▲ and ▼ keys together (ESCAPE) at anytime, to return to 
Measurement mode.