Hach NA5600 sc Na+ Mode D'emploi page 23

1. Wait until the overflow vessel is full of water.
2. If the water is higher than the top mark (+) or lower than the bottom mark (–) on the overflow
vessel, do the steps that follow:
a. Push menu, then select SETUP SYSTEM > CONFIGURE ANALYZER > OVERFLOW
COMPENSATION.
b. Select an option.
Option Description
+ Select when the water is higher than the top mark (+).
0 Select when the water is between the top mark (+) and than the bottom mark (–).
– Select when the water is lower than the bottom mark (–).
Section 5 Calibration
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.
5.1 Set the auto calibration settings
Note: Only do this task if the analyzer has a calibration bottle. Refer to Product overview in the installation manual
to identify the calibration bottle.
Set the auto calibration schedule and select the channel used for calibrations. The manufacturer
recommends that the analyzer is calibrated at 7-day intervals (weekly).
1. Push cal, then select SET AUTO CALIBRATION.
2. Select and configure each option.
Option
ENABLE AUTO
CAL
STD SOLUTION
TIME BASE
WEEK DAY
TIME
C A U T I O N
Description
NO—Sets auto calibration to off. YES (default)—Sets auto calibration to on.
Sets the concentration of the calibration standard that is in the analyzer
bottle (default: 10,000 ppb = 10 ppm).
Note: If the concentration of the calibration standard is 100 ppm or higher, set the
measurement units setting to ppm.
DAYS (default)—Sets calibration to occur on selected days at a selected
time (e.g., daily at 9:00 am). HOURS—Sets a time interval between
calibrations (e.g., 168 hours = 7 days).
Note: The WEEK DAY option only shows when TIME BASE is set to DAYS.
Sets the days a calibration is done. An auto calibration is done weekly on
Sunday by default. The recommended time interval between calibrations is
7 days.
Note: The TIME option only shows when TIME BASE is set to DAYS.
Sets the time a calibration is done (default: 02:00 = 2:00 am).
English 23