Yokogawa EXA DC402 Dual-Channel Conductivity Analyzer - Manual (Page 29)

IM 12D08E02-01E
5-4 Parameter setting
5-2. Commissioning mode
5-2-1. Introduction
In order to obtain peak performance from the EXA DC402, you must set it up for each custom application.
Setpoints Alarms are set by default S1 - high process alarm
S2 - low process alarm
S3 - not activated
S4 - Fail
The setpoints are at arbitrary default value. Therefore, you must set these to meaningful
values, or set them to off. (See service codes 40 to 49 and user interface codes 50 to 59.)
Output ranges mA output 1 is set as default to 0-100 µS/cm or 0-19.99 MΩ•cm.
For enhanced resolution in more stable measuring processes, it may be desirable to
select 5-10 µS/cm range, for example, and maybe 0-25 °C temperature range.
Service codes 30 to 39 can be used to choose other output parameters on mA output 2.
Choose from Table, temperature or PI control.
Hold The EXA DC402G converter has the ability to “HOLD” the output during maintenance
periods. This parameter should be set up to hold the last measured value, or a fixed
value to suit the process.
Service This selection provides access to the service menu.
What follows are pictorial descriptions of typical frontplate pushbutton sequences for each parameter set-
ting function. By following the simple YES/NO prompts and arrow keys, users can navigate through the
process of setting range, setpoints, hold and service functions.