Emerson Rosemount 56 - Programming Measurements; Introduction to Measurement Programming

Instruction Manual Section 6: Programming Measurements
LIQ-MAN-56 April 2017
Programming Measurements 43
Section 6.0 Programming - Measurements
6.1 Programming Measurements – Introduction
The 56 automatically recognizes each installed measurement board upon first power-up and
each time the analyzer is powered. Completion of Quick Start screens upon first power
up enable measurements, but additional steps august be required to program the analyzer
for the desired measurement application. This section covers the following programming
and configuration functions:
1. Selecting measurement type or sensor type (all sections)
2. Identifying the preamp location (pH-see Sec. 6.2)
3. Enabling manual temperature correction and entering a reference temperature
(all sections)
4. Enabling sample temperature correction and entering temperature correction
slope (selected sections)
5. Defining measurement display resolution (pH and amperometric)
6. Defining measurement display units (all sections)
7. Adjusting the input filter to control display and output reading variability or noise (all
sections)
8. Selecting a measurement range (conductivity – see Sections 6.4, 6.5)
9. Entering a cell constant for a contacting or toroidal sensor (see Sec’s 6.4, 6.5)
10. Entering a temperature element/RTD offset or temperature slope (conductivity-
see Sec’s 6.4)
11. Creating an application-specific concentration curve (conductivity-see Sec’s 6.4, 6.5)
12. Enabling automatic pH correction for free chlorine measurement (Sec. 6.6.1)
To fully configure the analyzer for each installed measurement board, you august use the
following:
1. Reset Analyzer function to reset factory defaults and configure the measurement board
to the desired measurement. Follow the Reset Analyzer menu (Fig. 5-5) to
reconfigure the analyzer to display new measurements or measurement units.
2. Program menus to adjust any of the programmable configuration items. Use the follow-
ing configuration and programming guidelines for the applicable measurement.
6.2 pH Measurement Programming
The section describes how to configure the 56 analyzer for pH measurements. The following
programming and configuration functions are covered.
1. Measurement type: pH Select pH, ORP, Redox, Ammonia, Fluoride, Custom ISE
2. Preamp location: Analyzer Identify preamp location
3. Filter: 4 sec Override the default input filter, enter 0-999 seconds
4. Reference Z: Low Select low or high reference impedance
5. Sensor wiring scheme: Normal or Reference to Ground
6. Resolution: 0.01pH Select 0.01pH or 0.1pH for pH display resolution