Hach PHOSPHAX indoor sc Installation and operating instructions

DOC273.98.90591
PHOSPHAX sc, PHOSPHAX indoor sc
Addendum—Operation with the SC1500 Controller
05/2017, Edition 1

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Table of contents
English..................................................................................................................................................... 5
Deutsch.................................................................................................................................................. 21
Español.................................................................................................................................................. 39
Français ................................................................................................................................................. 57
Nederlands ............................................................................................................................................ 89
Dansk ................................................................................................................................................... 105
Polski ................................................................................................................................................... 121

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Table of contents

English 5
Section 5 Operation
English
For more information on System Setup (current outputs, relays, and
network interfaces), refer to the sc1500 User Manual.
5.1 Sensor diagnostics menu
SELECT PHOSPHAX sc (if more than one sensor or analyzer is attached)
PHOSPHAX sc
Error list Displays all errors currently present in the sensor
Warning list Displays all warnings currently present in the sensor
5.2 Sensor setup menu
SELECT PHOSPHAX sc (if more than one sensor or analyzer is attached)
Calibration
Correction Factor Displays the locations and correction factors
Location 1 Displays location1 from Settings
Gain correction sets correction factor for channel 1
Location 2 On 2-channel version
Gain correction On 2-channel version
Intrinsic color Displays the zero extinction
Extinction factor Displays the internal device factor
Offset can be used to slightly correct measurements which are close to Zero
Reset setup Resets the user-editable options to their factory-defaults
Settings
Location 1 Settings for location 1
Name Enter the name for the measuring location as required.
Parameter Output can be set as phosphate or phosphate-phosphor.
Unit Output in mg/lL or ppm.
QUANTITY CH 1 Number of measurements in succession ( = measurements on channel 1 +
DISCHARGE VAL 1 channel 1). Available with the 2-channel version.
Discarded
measurements
channel 1
Number of discarded values after switching from channel 1 to channel 2. Available with the
2-channel version.
Location 2 Settings for location 2
Name Enter the name for the measuring location as required (on 2-channel version).
Parameter Output can be set as phosphate or phosphate-phosphor (on 2-channel version).
Units Output in mg/l or ppm (on 2-channel version).
QUANTITY CH 2 Number of measurements in succession ( = measurements on channel 2 +
DISCHARGE VAL 2 channel 2). Available with the 2-channel version.
Discarded
measurements
channel 2
Number of discarded values after switching from channel 2 to channel 1. Available with the
2-channel version.

6English
Operation
Settings (continued)
Measuring
Interval
Enter how often measurements are to be taken. ATTENTION with filtration probe and 5min
operation: increased pump speed in the filtration probe, annual filtration probe maintenance is
necessary instead of every 2 years.
Set to
WET/DRY, decides if the cuvette is empty (DRY) or filled (WET) between measurements at
measurement intervals that are equal or greater than 10 minutes. Adapt individually for
smoothest measurement values.
Start by bus
Start by bus
YES/NO, decides if the instrument is measuring continuously or measurements are triggered
by field-bus. The "Fieldbus" option must be activated in the Test/Maintenance menu. The
instrument will switch to a 5 min interval when activated.
Measurements Number of measurements that are taken after one activation by bus.
Discarded
measurements Number of discharged values that precedes the measurements.
Average Number of measurements that are averaged. (effects bus triggered measurements only)
Cleaning
Interval Number of hours between the cleanings.
Start Start time for the cleaning (in case of more than one cleaning per day: start time for the first
cleaning)
Discarded
measurements Number of measured values that are discarded after a cleaning operation.
Output mode Value output during a cleaning operation and the following discarded values. HOLD = last
measured value, SET TRANSFER = value to be entered
Tube heating
On Probe tube heating switches on at the start of the selected month. With filtration probe.
Off Probe tube heating switches off at the end of the selected month. With filtration probe.
Reagent warning
Reagent warning On/Off: On determines the warning output if the reagent levels are low.
Warning Determines the level below which the reagent must drop to trigger the warning.
Module status: Warning
40 %, 30 %, 15 % Warning is released, when a filter probe is installed and the status of filtration modules falls
below the defined level.
Module status: Error
14 %,10 %,8 %, Off Status of filtration modules at filter probe at which an error is generated. When switched to
OFF, a deactivated sample detection will be switched to "warning".
Sample detection
Off/Warning/Error
Determines instruments reaction when amount of available sample is to low. When
instrument is in filter probe mode, deactivating the sample detection will switch a deactivated
"STATUS MODUL.ERR" to 14 %
Drain blockage
On/Off Determines instrument reaction when drain is blocked
Reference electrode
On/Off Determines if measurement reference channel is used for measurement or not.
Bubble rejection status
On/Off
Use for samples that produce gas when acid is added. If active, sample is removed from
cuvette after reagent has been added, then refilled again to remove bubbles. If active, the
measurement interval of 5 minutes is not available. For not degassing samples the
measurement values are smother with bubble rejection deactivated.
5.2 Sensor setup menu (fortgesetzt)

English 7
Operation
Settings (continued)
Reset setup Prompt as to whether the factory settings are to be re-applied.
Last change Indication of the last change to a setting on the configuration menu.
Maintenance
Information
Location 1 Indication of measuring location 1
Location 2 Indication of measuring location 2 (on two-channel version)
Type Indication of instrument type
Sensor type Indication of instrument name
Serial number Indication of serial number
Range Indication of measuring range
Option Indication of instrument option (filtration probe/1-channel/2-channel)
Software filtration probe Filtration probe software (on filtration probe operation)
Software Instrument software
Loader Detailed information on the software in the instrument
Application Detailed information on the software in the instrument
Structure Detailed information on the software in the instrument
Firmware Detailed information on the software in the instrument
Content Detailed information on the software in the instrument
Language List of languages that are supported by the installed language package.
Measurement data
Location 1
Gain correction Indicates the correction factor set for correcting the measured values at measuring location 1.
Date Indicates the date of the last change to the correction factor.
Location 2 On 2-channel version
Gain correction On 2-channel version
Date On 2-channel version
Last dext value Indication of the delta extinction (EXT MESS-EXT REF) of the last measurement.
Extinction measurement Extinction during the last measurement
Extinction reference Extinction during the last zeroing
Amplify measurement Measuring amplifier gain factor
Amplify reference Reference amplifier gain factor
Zero measurement Measuring amplifier measured value during zeroing
Offset measurement Measuring amplifier offset
Measurement Measuring amplifier measured value during measurement
Reference zero Reference amplifier measured value during zeroing
Offset reference Reference amplifier offset
Reference Reference amplifier measured value during measurement
Process Information what instrument is currently doing (measurement, calibration etc.)
Remaining time Remaining time for current process, counting down to zero
List of values List of the last 10 measured values
5.2 Sensor setup menu (fortgesetzt)

8English
Operation
Maintenance (continued)
Maintenance counter Counter for reagent and consumables
Operating hours Displays the instrument's operating hours.
Reagent Displays the current level of the reagent.
Cleaning solution Displays the current level of the cleaning solution.
Air filter pads Days left until the next air filter change/clean.
Piston pump Days left until the next pump piston and cylinder replacement (PHOSPHAX piston pump)
Reagent pump Number of pump strokes performed by the reagent metering pump.
Filter module status Displays the state of the modules (on filtration probe operation).
Cleaning modules Last filter module cleaning (on filtration probe operation).
New filtration probe
module Last filter module replacement (on filtration probe operation).
Pump membrane Date of the last pump membrane replacement (filtration probe sample pump) (on filtration
probe operation).
Compressor Days left until the replacement of the air compressor (on filtration probe operation).
Test/Maintenance Maintenance processes
Signals
Process Indication of what the instrument is doing.
Remaining time Indication of the time left for the currently ongoing process
Cuvette temperature Current measuring cell temperature
Enclosure
temperature Current temperature in the instrument
Cooling Current speed of the enclosure fan in %
Heating Current enclosure heating power
Analyzer pressure Current pressure in the metering system of the valve block in mbar
Humidity in analyzer Indication of whether there is liquid in the collecting tray
Filter module status Only if filtration probe is registered: shows status of filtration modules (0–100 %)
Minimum sample
pressure
Only if filtration probe is registered :shows the averaged minimum pressure at the filter
modules
Actual filtration probe
pressure Only if filtration probe is registered: shows the actual minimum pressure at the filter modules
Filtration probe
heating Only if filtration probe is registered: indication of switching state of sample tubing heating
Humidty in filtration
probe
Only if filtration probe is registered: indication of whether there is moisture in the probe
enclosure
Heating drain only in 1 or 2 channel mode: shows status of drain heating
Process Indication of what the instrument is doing.
Remaining time Indication of the time left for the currently ongoing process
Maintenance mode Instrument can be set to service mode, for example for maintenance (system free of liquids,
thermal management and compressor for filter probe (if installed) active)
Output mode Value that is output in the service state. HOLD=last measured value, SET TRANSFER= value
to be entered
Start Leave service mode, start measurement
Reagent Reset the maintenance counter after reagent change.
Cleaning solution Reset the maintenance counter after changing the cleaning solution.
Air filter pads Menu-based process for changing the air filter pads, resetting the maintenance counter.
5.2 Sensor setup menu (fortgesetzt)

English 9
Operation
5.3 Cleaning process
Note: Make sure that the cleaning solution is available that the instrument
can work properly.
1. To configure an automatical cleaning interval select
Settings>Cleaning>Interval.
OR
1. To start a manual cleaning cycle select Maintenance>Cleaning.
Note: Press Start to confirm and start the cleaning process.
A cleaning cycle may take up to 10 minutes and then the
instrument returns automatically to the measuring mode.
Maintenance (continued)
Piston pump Days left until the next pump piston and cylinder replacement (PHOSPHAX piston pump),
reset after replacement of the pump
Reagent pump Number of pump strokes performed by the reagent metering pump, reset after replacement of
the pump.
Pre-pumping
Pre-pumping all All liquids are pre-pumped in succession.
Pre-pump reagent The reagent is pre-pumped.
Pre-pump cleaning
solution The cleaning solution is pre-pumped.
Pre-pumping filtration
probe
Only if filtration probe is registered: The filtration probe and modules are bled and
pre-pumped.
Pre-pumping sample Only if filtration probe is registered: sample is pumped from the filtration probe for 1 minute
Cleaning filter modules Menu-based process for cleaning the filter modules, automatically resetting the maintenance
counter. With filtration probe.
New filtration probe
module Only if filtration probe is registered: last filter module replacement.
Pump membrane Only if filtration probe is registered: date of the last pump membrane replacement (filtration
probe sample pump).
Compressor Only if filtration probe is registered: days left until the replacement of the air compressor.
Cleaning Trigger an automatic cleaning, then start measurement
Flushing Pumps all liquids in succession. Put all tubings that go to reagents, standards and cleaning
solutions into deionised water and start FLUSHING prior to taking instrument out of operation
Reset error Reset all error messages
Update filtration probe Enables the filtration probe software to be updated.
Fieldbus
ENABLED/DISABLED: Enable external control of instrument by fieldbus.
When instrument is put into SERVICE MODE by menu, the fieldbus control is temporarily
disabled.
Option Sets the instrument to filter-probe/ 1channel/ 2channel mode. Switching the options needs
modification of hardware!
Validation
Menu based process to measure external samples. When "Modification required" is
displayed: Disconnect sample tubing from overflow vessel, plug overflow vessel and put
sample tubing into external sample. After process: Unplug overflow vessel and reconnect
sample tube.
5.2 Sensor setup menu (fortgesetzt)

10 English
Section 6 Maintenance
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
DANGER
Potential danger in the event of contact with chemical/biological materials.
Handling chemical samples, standards and reagents can be dangerous. Familiarize
yourself with the necessary safety procedures and the correct handling of the
chemicals before the work and read and follow all relevant safety data sheets.
Normal operation of this instrument may involve the use of hazardous chemicals or
biologically harmful samples.
• Observe all cautionary information printed on the original solution containers
and safety data sheet prior to their use.
• Dispose of all consumed solutions in accordance with national regulations and
laws.
• Select the type of protective equipment suitable to the concentration and
quantity of the dangerous material at the respective work place.
6.1 General maintenance
• Regularly check the entire system for mechanical damage.
• Regularly check all connections for leaks and corrosion.
• Regularly check all cables for mechanical damage.
6.1.1 Clean the analyzer
Clean the system with a soft, damp cloth. Commercially available solvents can be used for
stubborn soiling.
6.1.2 Reagent replacement
The chemicals must be changed or renewed at regular intervals. Refer to Table 1 for
information on the life of the chemicals.
6.1.3 Replace the fan filter
The filter air pads must be cleaned or replaced regularly. Refer to Section 6.2 on page 11
for more information.
The cooling fan must be stopped before completing any filter maintenance.
To stop the cooling fan:
1. From the Main Menu select Sensor setup>PHOSPHAX SC and press Enter.
2. Select Maintenance>Test/Maintenance>Air filter pads and press Enter.
3. Select Start and press Enter.
The process is started and the cooling fan stops.
Table 1 Chemicals for the PHOSPHAX sc
Chemicals
Low measuring range (LR)
(0.05–15 mg/L)
(Measuring interval 5 minutes)
High measuring range (HR)
(1–50 mg/L)
(Measuring interval 5 minutes)
Reagent 2000 mL for 4 months 2000 mL for 2 months
Cleaning solution 1000 mL for 1 year on daily cleaning 1000 mL for 1 year on daily cleaning

English 11
Maintenance
Important Note: Open the instrument door to prevent overheating.
CAUTION
Avoid injury. Keep hands clear. Although the fan is stopped,
work carefully to avoid injury in case of failure.
To change the fan filter:
1. Open the analyzer enclosure and the analysis panel.
2. Press Enter.
3. The instrument counts the remaining time in seconds down to
zero and goes to Maintenance mode.
4. Change the air filter pads as described on the controller.
5. Remove the fan locking screw and slide the retaining strap to
the top and remove (Figure 10 on page 20). If necessary, press
the fan down to remove the retaining strap.
6. Slide the fan from the holding screws.
7. Clean the filter with soap and water and return to place.
8. Press Enter.
9. Replace the fan. Make sure that the fan opening is positioned
downward. Attach the retaining strap (hold down the fan) and
install the fan locking screw.
10. Close the analyzer enclosure and the analysis panel.
11. Press Enter.
The instrument will reset the maintenance counter and will start the
analysis again.
6.1.4 Fuse replacement
The fuses for the power supply are found in the sc1500 controller.
Refer to the sc1500 User Manual for fuse replacement information.
6.2 Routine maintenance schedule
The maintenance schedule is given for standard applications.
Deviant applications may cause different maintenance intervals.
Table 2 Routine maintenance schedule
Description 3 months 6 months 12 months 24 months
Check measurement chamber and history of amplification
(event log). X1
Visual check analytical compartment, manual cleaning if
necessary. X1X
Check filter pads, clean/ replace if necessary, particularly on
fan side. X1X
Check reagents, replace if necessary. X1X
Check cleaning solution, replace if necessary. X1X
Check maintenance counters. X1X
Function check of both fans. X
Function check heating for analyser enclosure. X

12 English
Maintenance
6.3 Validation (Analytical quality assurance)
Regular validation checks of the complete instrument must be
completed to make sure the analysis results are reliable.
Required parts:
• Blind plug LZY193 (Plugging set LZY007)
• Beaker (for example 150 mL)
• Standard solution for validation
Follow the internal menu steps for the validation.
1. From the Main menu select Sensor setup>PHOSPHAX SC and
press Enter.
2. Select Maintenance>Test/Maintenance>Validation>Discarded
measurements.
3. Enter the number of measurements which should be
discharged before starting the measurements of the validation.
(Default value: 2; value range: 1 to 5)
4. Select Measurements.
5. Enter the number of measurements which should be used for
the validation measurements.
(Default value: 3; value range: 2 to 10)
6. Select Start after adjusting both parameters and the analyzer is
going into the service state. The remaining time is displayed in
seconds.
The Output mode is set to Hold.
7. Select Enter to modify the analyzer (Figure 1 on page 14):
a. Unscrew the fitting (item 2) of the sample tube (item 5)
which connects the overflow vessel (item 1) and the valve
block (item 4) at the overflow vessel.
General function check. X
Check system for air impermeability. X
Clean manually and adjust cleaning interval if applicable. X
Read out and analyse event log. Read out and check data log
if necessary. X
Check reagent pump and replace if necessary (check every
6 months after 12 months of use). (X)2X
Replace pump head for air pump. X
1 Recommended, typical maintenance interval, especially for reagents. The actual reagent exchange intervals are depending on
configuration.
2 Maintenance cycles are given for standard applications. Deviant applications may cause different maintenance intervals.
Table 2 Routine maintenance schedule
Description 3 months 6 months 12 months 24 months

English 13
Maintenance
b. Screw in the blind plug (item 3) in the thread of the overflow
vessel (item 1) and insert the sample tube in a beaker (for
example 150 mL) with standard solution for the validation.
Note: To receive stable measurement values, close the door of the
analyzer.
8. Press Enter to start the validation.
Note: The remaining time is displayed in seconds:
9. Press Enter to escape.
The results are displayed to note down.
• The discharge value and the Conc value are counted down to
zero.
• The validation is finished when the process shows the service
mode and the remaining time is 0 seconds.
• For the adjusted number of validation measurements, the
values are listed and the calculated average of this value is
displayed.
Note: The data log records the validation values and average value from
the analyzer.
10. Press Enter to proceed.
Note: Press Start to confirm the inquiry to return to the measurement
process or to the service mode.
11. Select Enter and modify the instrument to the original analyzer
configuration.
12. Start the measurement mode or hold the service mode.
(Discharge value + measurement value) 5 minutes = remaining time/sec×

14 English
Maintenance
6.4 Shut the analyzer down
No special measures are necessary for taking out of operation for a
short period (up to a few days in frost-free ambient conditions).
Note: If the power supply to the controller is interrupted, frost
damage may occur. Ensure that the instrument and tubing cannot
freeze.
1. Interrupt the measurement and switch the instrument to the
service state.
2. Isolate the analysis instrument from the controller.
6.4.1 Shut the analyzer down for an extended period
Note: Always wear safety equipment when handling chemicals.
Use the following procedure if the instrument is to be taken out of
operation for an extended period, or in the case of risk of frost.
1. Immerse the tubing for reagent and cleaning solutions in
distilled water.
Figure 1Modification of PHOSPHAX sc
1Overflow vessel 4Valve block
2Fitting of sample tube 5Sample tube
3Blind plug

English 15
Maintenance
2. On the controller Test/Maintenance menu, start a cleaning
cycle with distilled water using the Flushing.
3. Clean the canister lid with distilled water.
4. Take the tubing out of the water and start the Flushing function
to pump the tubing and the analysis instrument empty.
5. Wipe the canister lids dry and seal the canisters with the
corresponding lids.
6. Remove the canisters and store them in a frost-free place and
in accordance with local regulations.
7. Isolate the system from the mains and the data network.
8. When using a Filter Probe sc, refer to the Filter Probe sc User
Manual for storage information.
9. Install all transport locks.
10. Depending on the duration, remove the system from its
mounting and wrap the system in a protective film or dry cloth.
Store the system in a dry place.
6.5 Scheduled maintenance
Table 3 lists items that need to be maintained by service personnel
ONLY. Contact the manufacturer for more information.
6.6 Modify from single channel to dual channel
The sc analyzer can be converted from single channel to dual
channel operation and/or continuous sampling. Contact the
manufacturer for more information. Refer to Table 4 for
configuration options.
Table 3 Repair maintenance items
Description When to replace Warranty
Reagent pump for sc analyzer (Valve pumps) According to wear 1 year
Pump head piston pump 10 mL
(Pre-greased cylinder and piston) 1 year 1 year
Switchable Compressor 115/230V 2 years recommended 2 years
Table 4 Conversions
From To With Conversion kit
1-channel operation 2-channel operation AMTAX sc, PHOSPHAX sc LZY170
Filter Probe sc Continuous sampling AMTAX sc, PHOSPHAX sc LZY241
Continuous sampling Filter Probe sc AMTAX sc, PHOSPHAX sc LZY242

16 English
Section 7 Troubleshooting
7.1 Troubleshooting the controller
If entries are only implemented with a delay or are not accepted for a short time, the delay
may be caused by a busy data network. Refer to the troubleshooting section in the sc1500
User Manual.
If, in normal operation, problems occur that are apparently caused by the controller, restart
the system.
After a software update, a system expansion or after an interruption in the power supply, it
may be necessary to set the system parameters again.
Note all the values that are changed or entered so all the necessary data can be used to
configure the parameters again.
1. Save all important data.
2. Isolate the supply of power and wait for 5 seconds.
3. Reapply power to the controller.
4. Check all relevant settings.
5. If the problems still occurs, contact Technical Support.
7.2 Troubleshooting the analyzer
If the complete analysis instrument is not working, check whether the humidity sensor has
tripped. Fix the damage, dry the humidity sensor and restart the system.
If the problems still occurs, contact Technical Support.
7.2.1 LED status
Table 5 LED Status and definitions
LED status Definition
green LED No errors of warnings
red LED Error
orange LED Warning
LED flashing No communication with controller
7.2.2 Error messages
Error displayed Instrument
reaction Cause Solution Reset error
Temperature <
0°C/32°F
Warms up and
goes into the
service state
instrument was
below 4 °C (39 °F)
on power up
Check whether instrument is frozen
(Cleaning solution/sample/reagent/
standards). If necessary use
pre-warmed reagents. Thaw electrode,
delete error. Instrument will then
continue to warm up and start
Reset error
manually
Test/Maintenance>
Reset error
Analyzer is too
cold.
Instrument goes
into the service
state
Instrument interior
has been below
4 °C (39 °F) for
more than
5 minutes
Close instrument, check heating
Reset error
manually
Test/Maintenance>
Reset error

English 17
Troubleshooting
The analyzer is not
heating up.
Instrument goes
into the service
state
Instrument cannot
heat interior
adequately.
(internal temp
<20°C (68°F) for
30 min)
Close instrument, check heating Reset error
manually
Cooling failed!
Service state,
starts
automatically after
cooling down
Instrument interior
is too warm (>57°C
(135°F))
Check air filter and clean/replace, check
fan.
Manual reset or
automatically when
temperature falls
2 °C (3.6 °F) below
limit
Humidity in
analyzer Service state There is liquid in the collecting tray Identify cause and rectify Reset error manually
Humidity in
filtration probe
Service state, the
filtration probe sc
is isolated from the
mains
There is liquid in
the filtration probe
enclosure
Immediately take filtration probe sc out
of operation and contact service. Take
the filtration probe sc out of the tank and
store the filter modules so that they
remain moist. (See operating
instructions for the filtration probe sc).
Reset error
manually
Filtration probe is
missing.
Service state, the
filtration probe sc
is isolated from the
mains
The filtration probe
sc is faulty or not
connected
Immediately take filtration probe sc out
of operation and contact service. Take
the filtration probe sc out of the tank and
store the filter modules so that they
remain moist. (See operating
instructions for the filtration probe sc).
Reset error
manually
Temperature
sensor is
defective.
Service state, fan
running, heating off
The temperature
sensor for the
internal instrument
temperature is
faulty
Immediately switch off instrument,
contact service, replace main circuit
board
Reset error
manually
Cuvette sensor is
defective
Service state,
cuvette heating off
The temperature
sensor for the
cuvette is faulty
Contact service, replace cuvette/sensor Reset error
manually
Cuvette heating is
defective
Continued
measurement
The cuvette is not
being heated
adequately
Close instrument door, contact service,
check cuvette heating, check main
circuit board
Reset error
manually
Cuvette is too hot. Service state,
cuvette heating off!
The cuvette is
over-heated.
Sample too hot/ heating regulation
faulty, check main circuit board, contact
service
Reset error
manually
Photometer level is
low / Photometer
level channel 2 is
low.
Continued
measurement
Photometer signal
too low (1channel,
2 channel
operation ,
depending on
channel that
triggered the
error). Not enough
sample available.
Trigger cleaning (several times).
Manually clean photometer. If this action
solves the problem, increase automatic
cleaning, otherwise contact service.
Check sample delivery.
Reset error
manually or
automatic if level is
OK again
7.2.2 Error messages (fortgesetzt)
Error displayed Instrument
reaction Cause Solution Reset error

18 English
Troubleshooting
Photometer level is
high / Photometer
level channel 2 is
high.
Continued
measurement
Photometer signal
too high (1
channel, 2 channel
operation ,
depending on
channel that
triggered the error)
Contact service
Reset error
manually or
automatic if level is
OK again
Filter modules are
contaminated
Continued
measurement
Filter modules
heavily soiled Clean filter modules immediately Reset error manually
Drain is blocked. Service state Drain is blocked Clean drain line Reset error
manually
Sample 1 / Sample
2
Continued
measurement
the amount of
sample is not
sufficient
(channel1 /
channel2) This
occurs as error if
SAMPLE
DETECTION is set
to ERROR
Check sample delivery, make sure that
sample line has no negative pressure,
check tightness of piston pump, check
overflow and air valve
Automatic reset
when enough
sample is
available, or
manuell reset
7.2.2 Error messages (fortgesetzt)
Error displayed Instrument
reaction Cause Solution Reset error
7.2.3 Warnings
Warning displayed Instrument
reaction Cause Solution Reset warning
Device is starting up
Instrument is
warming up sample
tubing after start
(de-frosting)
If there is a risk that the
sample tubing is frozen, a
warning is displayed
As far as possible, wait until
end of the warm-up phase
(except if certain there is no
frost), to cancel please
place instrument in service
state and start
measurement again
Automatic
Cooling down
Fan 100 % ,
standstill until cool
enough
Instrument is cooling down
after start using ventilation,
if it was heated
excessively
Wait until instrument has
cooled down enough
Reset,
automatically as
soon as cool
Analyzer is too cold. Measurement Instrument has cooled
below 15°C (59 °F)
Close instrument door, if
necessary check heating
Reset,
automatically as
soon as warmer
Analyzer is too hot.
Measurement, but
no more air
cleaning
At very high internal
temperature, the air
cleaning of the filter
modules is disabled to
generate less wasteheat of
the internal compressor.
(internal temp. =
55°C(131°F ))
Change/clean air filter,
check air ducts for blockage,
check enclosure fan, is
ambient temperature
allowed?
Reset,
automatically as
soon as cool
Cuvette is too cool. Continued
measurement
The cuvette is not being
heated adequately. 2 min
after sample change:
temp. = ((target temp. of
cuvette) - 1 °C(34°F))
Close instrument door,
check/fit cuvette insulation. Automatic

English 19
Troubleshooting
Photometer level is low
/ Photometer level
channel 2 is low.
Continued
measurement
Photometer signal low
(dependent on chanel if 2
chanel mode is used) .
Not enough sample.
Trigger cleaning (several
times). Manually clean
photometer. If this action
solves the problem,
increase automatic
cleaning, otherwise contact
service. Check sample
delivery.
Automatic
Filter modules are
contaminated
Continued
measurement Filter modules soiled Clean filter modules soon Automatic
Maintenance mode Service state
The instrument is in the
service state or is
switching to this state
–
Automatic when
the service state
is left
Reagent level Continued
measurement
Amount of reagent has
dropped below warning
level set
Check reagent level and
replace if necessary, then
reset reagent level. The
level is indicated
mathematically and can only
function reliably if the
counter is only reset when
the solution is changed
On the Main
menu
Maintenance>
Test/Maintenance
>Maintenance
Counter>
Reagent
Cleaning solution level Continued
measurement
Amount of cleaning
solution has dropped
below warning level set
Check cleaning solution
level and replace if
necessary, then reset
cleaning solution level.
The level is indicated
mathematically and can only
function reliably if the
counter is only reset when
the solution is changed
On the Main
menu
Maintenance>
Test/Maintenance
>Maintenance
counter>
Cleaning solution
7.2.3 Warnings (fortgesetzt)
Warning displayed Instrument
reaction Cause Solution Reset warning

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