User Guide

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9.5 Configuration – P3.0
Setup program P3.0 let you configure controller parameters.
P3.1: select pH or ORP mode of operation
P3.2: select symmetrical or asymmetrical input mode
P3.3: select temperature compensation (manual or automatic)
P3.
0
CONF
P3.
1
P3. 2 P3.3
PH ASYM
SYM
ORP
MTC
aTC
Press ▲ and ▼ keys together (ESCAPE) at anytime, to leave the Setup mode
and return to Measurement mode.
P3.1: Select pH or ORP
This lets you set the controller to take pH or ORP measurements.
1. Key in the password “022” as per procedure in Section 5.
2. Press ▲ key twice. The screen will scroll P3.0 and CONF. Press ENTER.
3. The screen will scroll P3.1 and PH (or ORP).
4. Press ▲ or ▼ keys to toggle between pH and ORP.
5. Press ENTER to confirm and continue to step three of P3.2.
P3.2 Select symmetrical or asymmetrical input mode
Use asymmetrical mode under normal operating conditions. Use symmetrical
mode when the measuring environment is electrically noisy (i.e. in electroplating
environments). Default is asymmetrical.
See Appendix 1 for more details on operation in symmetrical and asymmetrical
modes.
1. Key in the password “022” as per procedure in Section 5.
2. Press ▲ key twice. The screen will scroll P3.0 and CONF. Press ENTER
twice.
3. The screen will scroll P3.2 and ASYM (or SYM).
4. Press ▲ or ▼ keys to toggle between ASYM and SYM.
5. Press ENTER to confirm and continue to step three of P3.3.
NOTE: If the unit is set to symmetrical mode, the potential matching pin (or liquid
ground) has to be connected to pin 4 (connector B). Please refer to the Back Panel
diagram on page 4.