Hach-Lange HACH 5500 sc SiO2 Operations - Manual (Page 9)

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 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.
PRIME REAGENTS Starts the flow of all reagents through the tube and
valve 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 measure 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.
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.
1. Select GRAB SAMPLE>GRAB SAMPLE OUT.
2. Complete the instructions on the display.
3. Put the grab sample out tube in a clean container. The grab sample
tube is located in the lower unit of the cabinet on the left side.
4. Push down on the spigot (upper left corner of the lower
compartment) for the grab sample tube to dispense a grab sample.
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