Thermo Fisher Scientific Alpha pH 190 (In the process of updating the brand guideline & product image) - Manual (Page 25)

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9.3 Set Point 1 – P1.0
Setup program P1.0 allows you to set parameters for relay 1.
P1.1: select relay 1 set point value
P1.2: select relay 1 as low or high set point
P1.3: set relay 1 hysteresis value (dead band)
P1.0 P1.1 P1.2 P1.3
SP 1 SP 1 SP 1
4.00 LOW
HIGH
1.00
HYS 1
Press ▲ and ▼ keys together (ESCAPE) at anytime, to leave the
Setup mode and return to Measurement mode.
P1.1: Select relay set point value
This lets you choose the pH (or ORP) value that will cause your
controller to activate. If this value is crossed, the set point relay 1
LED will light.
1.
Key in the password “022” as per procedure in Section 5.
2. The screen will scroll P1.0 and SP1. Press ENTER.
3. The screen will scroll P1.1, SP1, then the current set point
value.
4. Press ▲ 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).
5. Press ENTER to confirm and continue to step three of P1.2.
P1.2: Set relay as high or low set point
Select a low set point to activate controller when your value
undershoots the set point; select a high set point to activate
controller when your value overshoots the set point.
Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo or hi/hi set
points.
1.
Key in the password “022” as per procedure in Section 5.
2. The screen will scroll P1.0 and SP1. Press ENTER twice.
3. The screen will scroll P1.2, SP1, and LOW (or HIGH).
4. Press the ▲ or ▼ keys to toggle between LOW and HIGH.
5. Press ENTER to confirm and continue to step 3 of P1.3.