Hach CL17sc User Manual page 20

6. When "TASK COMPLETE" shows on the display, push enter.
The analyzer starts a measurement cycle in approximately 30 seconds.
7.3 Replace the reagent bottles
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.
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Replace the reagents bottles at 1-month intervals.
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 > CHANGE REAGENTS.
3. Push enter to stop measurements.
4. Select an option.
Option
HOLD
TRANSFER
5. Wait for the status light to flash.
6. Replace the buffer bottle as follows:
Note: (Optional) Use the top of the analyzer as a shelf.
a. Remove the cap and seal from the new buffer bottle.
b. Remove the used buffer bottle from the analyzer.
c. Put the buffer tubing in the new buffer bottle on the right side of the analyzer. Tighten the cap.
7. Replace the indicator bottle as follows:
a. Remove the cap and seal from the indicator bottle and the brown DPD bottle.
b. Fill the brown DPD bottle approximately ¼ full with indicator solution.
20 English
C A U T I O N
C A U T I O N
Description
The controller outputs are held at the last measured value.
The controller outputs change to the transfer value.