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Item
CONDUCTIVITY
TGAS
TWATER
6.2 Measure a grab sample
The analyzer can measure a water sample that is added to the overflow vessel. Make sure that the
specifications of the water sample are as follows:
• Sodium concentration
cationic pump: 20 ppb to 200 ppm.
• pH—Analyzers without cationic pump: 6 to 10 pH; Analyzers with cationic pump: 2 to 10 pH
6
• Temperature
—5 to 45 °C (41 to 113 °F)
• Acidity (equivalent CaCO
a cationic pump: less than 250 ppm
• Suspended solids—Less than 2 NTU with no oil or grease
Measure a water sample as follows:
1. Collect a minimum of 200 mL of a water sample in a clean container.
2. Push menu, then select GRAB SAMPLE/VERIFICATION.
3. Select GRAB SAMPLE, then push enter.
4. Follow the instructions on the display.
5. When prompted, add the water sample to the overflow vessel until the water level is between the
top mark (+) and the bottom mark (-). Push enter.
When the measurement is done, the results show on the display.
6.3 Show the measurement, calibration and event logs
Note: The analyzer stores a maximum of 18,000 data points. After 18,000 data points are stored, the oldest data
points are overwritten with new data.
1. Push menu and select VIEW DATA > LOG DATA.
2. Select an option.
Option
VIEW DATA LOG
VIEW EVENT LOG
VIEW CALIBRATION LOG
VIEW GRAB SAMPLE LOG
3. Select an option.
Option
START TIME
5
A grab sample that has a sodium concentration of less than 20 ppb is not recommended.
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For the best accuracy (± 5% from 20 ppb to 10 ppm), make sure that the grab sample is at the
same temperature (± 5 °C) as the calibration standard used for calibration.
26 English
Table 4 Measurement data descriptions (continued)
Description
The conductivity of the channel in use.
The time for gas (conditioning solution) during pH conditioning.
The time for water (sample) during pH conditioning.
5
—Analyzer without a cationic pump: 20 to 10,000 ppb; Analyzer with a
)—Analyzer without a cationic pump: less than 50 ppm; Analyzer with
3
Description
Shows the saved measurements.
Shows the events that have occurred.
Shows the saved calibrations.
Shows the saved grab sample measurements.
Description
Shows the data recorded after the selected date and time.
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