12
Error Messages
Error Display
Problem
Possible causes
A
lar
m c
on
tac
t
Red LED
out 1 (22 mA
)*
out 2 (22 mA
)*
ERR 01
Measured
value
blinks
pH sensor
• Sensor defective
• Not enough electrolyte in sensor
• Sensor not connected
• Break in sensor cable
• Wrong sensor connected
• Measured pH value < -2 or > 16
• Measured ORP value
< -1999 mV or > 1999 mV
x
x
x
ERR 02
Measured
value
blinks
ORP sensor
• Sensor defective
• Sensor not connected
• Break in sensor cable
• Wrong sensor connected
• Sensor potential < -1500 mV
• Sensor potential > 1500 mV
x
x
x
ERR 98
“Conf“
blinks
System error
Configuration or calibration data defec-
tive; completely reconfigure the device
using the factory settings. Then calibrate.
Memory error in device program
x
x
x
x
ERR 99
“FAIL”
blinks
Factory settings
EEPROM or RAM defective
This error message only occurs in the
case of a total defect. The device must
be repaired and recalibrated at the fac-
tory.
x
x
x
x
