Overview; Introduction; What's In This Section; Calibration Menu Customized For Different Configurations - Honeywell 9782 Series Operator's Manual

8.1 Overview

Introduction

Each type of cell has an associated cell constant entered during I/O setup (see Section 5). This
number is part of the cell model number. However, for greater precision, every Honeywell cell is
individually tested at the factory, and a calibration factor unique to that cell is determined. The
cal factor for a cell can be found on the plastic tag hanging from the cell lead wires. Instructions
for entering this cell cal factor are in 8.3.
For some conductivity applications even greater accuracy is required. For those applications it is
possible to perform a calibration trim procedure. The Analyzer/Controller's reading can be
adjusted while the associated cell is measuring a reference solution of known conductivity, as
described in 8.4. The same procedure can be used to adjust the Analyzer/Controller's reading
while the cell is in the process, if a reference instrument is used to determine the conductivity of
the process. In this case the process fluid becomes the "reference solution".
Calibration trim can be removed as described in 8.5
For accurate measurement of total dissolved solids (TDS) a conversion factor is entered for each
cell as described in 8.6.
ATTENTION
Any time a cold reset is performed, the calibration trim and TDS values will be removed.
The cal factor will be reset to match the cell constant.

What's in this section?

The topics in this section are listed below.
8.1 Overview
8.2 Recommendations for Successful Measurement and Calibration
8.3 Entering the Cal Factor for Each Cell
8.4 Performing Calibration Trim
8.5 Removing Calibration Trim Values
8.6 Determining and Entering the TDS Conversion Factor

Calibration menu customized for different configurations

The choices available on the menu displayed when CALIBRATION is selected from the main
menu depend on the choices made for solution temperation compensation during I/O setup (see
Step 13 in Table 5-1).
If neither cell's solution temperature setup uses total dissolved solids (TDS), then the calibration
menu contains the following choices:
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator's Manual
8. Calibration
Topic
Calibration
See Page
8-1
8-3
8-4
8-5
8-7
8-8
8-1