Hach NA5600 sc Na+, Руководство по эксплуатации

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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
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.
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 Description
ENABLE AUTO
CAL NO —Sets auto calibration to off. YES (default)—Sets auto calibration to on.
STD SOLUTION 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.
TIME BASE 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).
WEEK DAY 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.
TIME 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).
SET INTERVAL Note: The SET INTERVAL option only shows when TIME BASE is set to HOURS.
Sets the time interval between calibrations. Options: 2 to 255 hours (default: 168 hours =
7 days). The recommended time interval between calibrations is 7 days.
SELECT CAL
CHANNEL Selects the channel used for calibrations (default: Channel 1).
Note: Do not select a channel that contains the symbol "~" (e.g., 4-~SAMPLE4).
Channels that contain the symbol "~" are not measured.
5.2 Do a calibration
Let the analyzer operate for 2 hours after initial startup (or storage) to become stable, then do a
calibration.
Over time readings can drift to higher or lower than they should be. For the best accuracy, calibrate
the analyzer at 7-day intervals (weekly).
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