MODEL 54e pH/ORP
SECTION 8.0
TROUBLESHOOTING
TABLE 8-3. Troubleshooting Guide (continued)
PROBLEM OR CONDITION
PROBABLE CAUSE AND
FOR MORE HELP,
CORRECTIVE ACTION
REFER TO
Display reads between 3 and
Electrode cracked -
6 pH regardless of actual pH
Replace electrode.
solution or sample.
"cracked glass failure"
Sluggish or slow display indica-
Electrode coated -
tion for real changes in pH level.
Clean electrode as instructed in
sensor manual
Inability to change
Password protected -
Section 7.0
parameters in the controller.
Your controller has password protection.
"Level 1 security: Lock"
You must enter the correct password to
"Level 2 security: Lock"
make changes in the controller.
"Level 3 security: Lock"
Outputs do not change
Controller is in Hold or simulate mode -
Software Configuration, Section 5.6
"Hold Mode activated"
To remove from Hold, press any key
Calibration , Section 4.7
"simulating output 1 or 2"
and then press Enter (F4). Press Edit (F4),
"simulating alarm 1,2,3, or 4"
change "On" to Off", and press Save (F4).
To stop simulation, press Exit (F1).
When the unit has been put into "Hold",
all outputs go to their default states.
Red LED light is on
Unit has gone into fault mode -
Section 8.0
Various fault messages
Read the message and take action as
shown on lower display.
indicated in Table 8-2.
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