Section 7: Programming Measurements/ Ph Measurement Programming; Accessing Configuration; Choosing Temperature Units And Automatic/Manual Temperature Compensation; Temperature Units - Emerson Rosemount 1066 Instruction Manual

1066 Transmitter Instruction Manual
LIQ_MAN_1066-P-FF
Section 7: Programming Measurements /
pH Measurement Programming
This section outlines how the various configuration parameters affect the measurement, and how
to access them.
Note: Accessing the Program menu places the Transducer Block in the Out of Service Mode.
This will cause all measurement channels to have a BAD status (Bad: Out of Service), which can
affect the control system. Before programming the 1066 pH should be removed from automatic
control. When the Program menu is exited, the Transducer Block will be returned to the
Automatic mode.
Note: If you want to simply review the configuration parameters of the 1066 pH, use the Main
menu item View Configuration. This will allow you to look at the configuration with the
Transducer Block in the Automatic mode, and thus avoid any affect on the control system.
7.1

Accessing Configuration

To configure pH:
1. Press MENU
2. Scroll down to Program. Press ENTER.
3. Scroll down to Measurement. Press ENTER.
To change any parameter, scroll to the desired item and press ENTER.
The following sub-sections provide an explanation of each parameter and an explanation of its func-
tion in the measurement, and how it can be configured to meet the needs of a particular application.
Choosing Temperature Units and
7.2
Automatic/Manual Temperature Compensation
7.2.1

Temperature Units

In the Program Menu, select Temperature and press the ENTER.
The first item listed is Units. Select either the desired temperature units (C or F). This is the only
temperature related configuration for ORP or Redox measurements, since they do not use tem-
perature compensation.
7.2.2

pH Temperature Compensation

pH measurements do require temperature compensation. The Model 1066 performs temperature
compensation automatically by applying a temperature correction algorithm to compensate the
pH sensor millivolt output for changes in the output due to changes in the sensor temperature.
Programming Measurements
Section 7: Programming Measurements
September 2013
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