Yokogawa EXA DC402 Dual-Channel Conductivity Analyzer - Manual (Page 71)

IM 12D08E02-01E
10-8 Appendix
Setting up DC402G for USP
First enable USP in service code 57. Change
the setting from 0 (default) to 1 (enabled).
This activates uncompensated conductivity in
the display menu. The E13 alarm feature is
also enabled. For E13 the FAIL alarm (S4) is
triggered when the uncompensated conductivity
exceeds the relevant value in the graph.
USP warning alarms can be selected for any of
the 4 relay outputs.
Service codes 40 to 43 are for these alarms.
Set to 2.5.1 for input one, or 2.5.2 for input two.
The setpoint is the safety margin in %, and is
set as described in sections 5-1-3 & 5-2-2.
Conductivity limit as a
function of Temperature
Temperature in ºC
0 25 50 75 100
μS/cm
3.5
3
2.5
2
1.5
1
0.5
0
Fig. 10-1.