A-96.250.491 / 190121
AMI Deltacon DG
Troubleshooting
43
7.
Troubleshooting
This chapter provides some hints to make troubleshooting easier.
For any detailed information how to replace or clean parts please see
.
For any detailed information how to program the instrument please
see chapter
Program List and Explanations, p. 56
.
If you need help please contact your local distributor. Note serial
number of instrument and all diagnostic values before.
Conditions for
pH calculation
only 1 alkalization agent in the sample (no mixture)
the contamination is mostly NaCl
phosphate concentration is < 0.5 ppm
if pH value is < 8, the concentration of contaminant must be
small compared to the concentration of the alkalization agent
pH value is > 7.5, and < 11.5
Problem
Possible Reason
Cond. value
<0.055
S/cm
Air bubble at sensor tip or sensor in air.
High cation cond.
after start-up
Cation exchanger resin not rinsed. Use
Swan cation exchanger resin.
No pH/alkaliza
-
tion agent value
available in dis
-
play, relay, signal
output
Switch on calculations in Installation,
Sensor, Miscellaneous, Calculations.
Afterwards program screen 1 and 2 in
Operation, Display, Screen 1, Screen 2.
