Table 6 Maintenance schedule (continued)
Task 1 month 6 months As necessary
Replace the stir bar and tubing harness
3
X
Clean the screen in the Y-strainer on page 22 X
7.2 Clean the cell
C A U T I O N
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
personal protective equipment appropriate to the chemicals that are handled. Refer to
the current safety data sheets (MSDS/SDS) for safety protocols.
Clean the cell at 1-month intervals or more frequently if necessary.
Items to collect:
Cotton swabs
4
5.25 N Sulfuric Acid Solution
5
1. Put on the personal protective equipment identified in the safety data sheets (MSDS/SDS).
2. Push menu, then select SENSOR SETUP > [select analyzer] > TASKS > CLEAN CELL.
Note: To stop a selected task, push home.
3. Push enter to stop measurements.
4. Select an option.
Option Description
HOLD The controller outputs are held at the last measured value.
TRANSFER The controller outputs change to the transfer value.
5. When the status light flashes, do the illustrated steps that follow. When done, push enter.
At illustrated step 5, make sure that there is no unwanted material in the cell. Use a flashlight to
look for unwanted material as necessary.
3
Refer to the instructions supplied with the Tubing Kit.
4
Refer to Replacement parts and accessories on page 27.
5
Do not use other cleaning solutions. Refer to Replacement parts and accessories on page 27.
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