Hach-Lange PROGNOSYS - Manual (Page 17)

Message 1 Possible cause Solution
NH4 electrode
damaged The NH
4
electrode is
damaged.
• Replace the cartridge.
• Examine if the cartridge was in contact (through
vibrations) with the wall or other objects.
• Do not hit the cartridge during removal from the basin.
• Do not touch the ground with the cartridge.
NO3 electrode
damaged The NO
3
electrode is
damaged.
K+ electrode
damaged The K+ electrode is damaged.
CL- electrode
damaged The Cl- electrode is damaged.
NH4 MX2: high
Temp. diff. P1 P2 The temperature difference
between the two correction
points of a matrix correction
(MX2) or value correction
(VC2) for NH
4
is more than
7.5 °C (45.5 °F).
Select a two-point matrix correction (MX2) or value
correction (VC2) for within a temperature difference of
7.5 °C (45.5 °F).
NH4: High temp.
diff. to MX The temperature difference
between the correction point of
a one-point matrix correction
(MX1) or value correction
(VC1) is more than 7.5 °C
(45.5 °F) for NH
4
.
The average temperature of
the two-point matrix correction
(MX2) or value correction
(VC2) and the actual
temperature of the medium is
more than 7.5 °C (45.5 °F) for
NH
4
.
Make sure to put the sensor fully in the medium.
Complete new MX1 or MX2 (VC1 or VC2) near to the
temperature of the medium during operation.
NO3 MX2: high
Temp. diff. P1 P2 The temperature difference
between the two correction
points of a matrix correction
(MX2) or value correction
(VC2), for NO
3
is more than
7.5 °C (45.5 °F).
Select the correction points for MX2 (VC2) within a
temperature difference of 7.5 °C (45.5 °F).
NO3: High temp.
diff. to MX The temperature difference
between the correction point of
a one-point matrix correction
(MX1) or value correction
(VC1) is more than 7.5 °C
(45.5 °F) for NO
3
.
The average temperature of
the correction points of a two-
point matrix correction (MX2)
or value correction (VC2) and
the actual temperature of the
medium is more than 7.5 °C
(45.5 °F) for NO
3
.
Make sure to put the sensor fully in the medium.
Complete a new MX1 or MX2 (VC1 or VC2) near to the
temperature of the medium during operation.
1 AISE: All messages except for NO
3
and Cl electrodes. NISE: All messages except for NH
4
and K electrodes.
SOLITAX sc
Message Possible cause Solution
Service required The counter for maintenance is expired. Contact technical support.
Replace wiper
blade The counter for wiper cycles is expired. Replace the wiper profile.
English 15