Instructions Manual

Pub. #OM17-MSP3
6-24
Procedure #11 pH Module
1. Unit doesn’t cycle when “1” key is pressed (in Automatic Mode)
-check to be sure you are in Data Acquisition mode—screen below:
Figure 11.1
-check to be sure that external controller is in Automatic mode. If it isn’t, this screen will
appear:
Figure 11.2
-follow troubleshooting flow chart below and see related Procedures in Maintenance and
Procedure Section
Figure 11.3