Hach 500sc SiO2, Операции

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Set up the reagents and standards
Make sure to set the sample flow rate and install the reagent bottles before this task is started.
1. Push menu and then go to REAGENTS/STANDARDS.
2. Select one of the options. Use the SET options when the volume of existing reagents/standards
needs to be adjusted. Use the RESET options when reagents/standards are replaced or renewed
(bottles are replaced).
Option Description
SET REAGENT LEVEL Sets the volume of a specific reagent in the reagent bottle to an estimated value.
Range: 1–100%.
SET STANDARD LEVEL Sets the volume of a specific standard solution in the standard bottle to a
calculated approximate value. Range: 1–100%.
SET CLEANING LEVEL Sets the volume of the cleaning solution in the cleaning solution bottle to an
estimated value. Range: 1–100%.
RESET REAGENT
LEVELS Sets the volume of reagent in the reagent bottles to 100% full.
RESET STANDARD
LEVELS Sets the volume of standard solution in the standard bottle to 100% full.
RESET CLEANING
SOLUTION LEVELS Sets the volume of the cleaning solution in the cleaning solution bottle to 100%
full.
PRIME REAGENTS Starts the flow of all reagents through the tube and valve system. IMPORTANT:
prime the reagents each time the reagents are changed to remove bubbles
and push the new reagents through the system.
ENTER BLANK VALUE Sets the blank to a specific value printed on the R1 bottle label.
Grab sample options
The grab sample menu allows the user to analyze a specific sample or standard. Two options are
available:
• GRAB SAMPLE IN: This option is used to analyze an external sample or standard.
• GRAB SAMPLE OUT: This option is used to extract a sample directly from a sample line for
external analysis.
Measure a grab sample or standard
Use the grab sample funnel to measure grab samples taken from other areas in the system or to
measure a standard for a calibration verification.
1. Collect 250–500 mL of the sample or standard in a clean container.
2. Rinse the funnel outside of the unit with the collected sample.
3. Install the funnel again.
4. Select GRAB SAMPLE>GRAB SAMPLE IN.
5. Complete the instructions on the display. The result shows for 5 minutes.
Note: To see the result after 5 minutes, go to the Event Log.
Get a grab sample from the analyzer
Use the grab sample tube to manually dispense a grab sample from one of the sample sources for
external analysis.
The sample source is measured by the analyzer immediately after the sample is dispensed. The
value of the sample source and the job identification number for the grab sample are shown on the
display.
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