User Guide

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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)
P
1
.
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.