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Note:
1. After replacing the sample tubes, the prime
volume of the water sample needs to be adjusted
according to the length of the sample tubes.
2. After moving the sensor (including replacing the
liquid buffer ring, repairing the electronic rotary
valve (ERV), etc.), the liquid sensor needs to be
recalibrated.
3. It is recommended to conduct autocalibration at
least once a month (More accurate if auto-
calibrated once a week; It can be set under
calibration
mode:
instrument automatically calibrate itself once its
calibration frequency is set.
Cleaning
This instrument supports two cleaning functions: Clean
and Deep Clean .
Clean uses the special cleaning solution to clean the
reaction/measurement cell, tubing and electric rotary valve
(ERV). The necessary cleaning function has been
integrated into the analysis process of the instrument.
Additional cleaning can be performed manually by the
user using the manual cleaning function. Cleaning is built-
in to run automatically when the instrument has been idle
for longer than two hours. Clean procedure removes
residual contamination in the fluidic system when system
is idle for over 2 hours. It can remove high concentrations
of silica contamination from the sample delivery system or
measurement cell.
The Deep Clean function uses the special cleaning
solution (P/N: 8030CL) to thoroughly clean the tubes of the
entire instrument and electronic rotary valve (ERV), thus
killing bacteria and removing silica deposit and dirt in the
tubes system. During long-term operation of the
instrument, it is recommended that the user shall conduct
a deep cleaning of the instrument pipeline system at least
once a month and replace the cleaning solution once
every 3 months. Deep Cleaning can also be used as a
troubleshooting procedure. It is only recommended when
the cell or tube is dirty. If the instrument does not
provide correct reading after a few calibrations and
validations, then deep cleaning can be used to clean the
40 | Chapter 6
Regular Maintenance
interval
frequency).
The
fluidic system. After deep cleaning, an instrument
calibration is needed to correct the instrument reading bias.
Liquid Leakage Maintenance
The instrument has the function of liquid leakage alarm to
ensure the safety of the instrument.
If any liquid leaks to the bottom of the instrument, the
system will give out an alarm. For the sake of safety, the
instrument will automatically stop measuring. If the
instrument sends a liquid leakage alarm, please follow the
following steps:
Step 1: Power off the instrument.
Step 2: Please wear protective gloves, goggles and
protective clothing.
Step 3: Remove the reagent bottles, standard solution
bottle(s), cleaning solution bottle, validation solution bottle
and other items from the instrument.
Step 4: Dry the tray and all liquid leakage.
Step 5: After confirming the leakage source and
completing repair, switch on the power supply again to
operate the instrument.
Long-term Shutdown
If a long-term shutdown is required (over a month), in order
to prevent the crystallization of residues or sediment of
other particulates in the instrument tubes, especially in
the electronic rotary valve (ERV), which may block the
tubes and cause the failure when restarting the instrument,
please follow these steps to clean the system.
Step 1: Perform the manual cleaning procedure twice or
more in succession.
Step 2: Execute the manual draining procedure, drain the
residual liquid in the reaction/measurement cell.
8030cX Silica Analyzer
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