The controller provides access to a data log, event log and service log for each connected
instrument. The analyzer measurements are saved automatically to the data log at 150 second
intervals. The event log shows the events that have occurred. The event and data logs keep
approximately 2 weeks of data when the analyzer operates continuously. The service log keeps
approximately 24 hours of data when the analyzer operates continuously.
Refer to the controller documentation to download the data log, event log and/or service log. The
data log is an XML file that can be saved in CSV or Excel format. The event log and service log are
files in CSV format.
5.3 Modbus registers
A list of Modbus registers is available for network communication. Refer to the manufacturer's
website for more information.
5.4 Measure a GRAB SAMPLE IN
When necessary, use the GRAB SAMPLE IN menu to add a water sample of known chlorine
concentration to the cell for measurement. Measure a grab sample for verification or to measure a
water sample collected from another location.
1. Push menu, then select SENSOR SETUP > [select analyzer] > GRAB SAMPLE IN.
2. Complete the steps that show on the display. When prompted, remove the cell lid and add
100 mL of the grab sample to the cell. Some of the sample will flow to the sample drain.
Section 6 Calibration and adjustment
The calibration curve of the analyzer is set at the factory for performance to specifications.
Calibration can be done for performance verification.
No user adjustments to the factory calibration curve are recommended unless required by a
regulatory agency for compliance reporting purposes, or a large repair of the analyzer is done.
For more information, refer to the instructions in the Calibration Verification Kit or contact technical
support.
Section 7 Maintenance
C A U T I O N
Multiple hazards. Only qualified personnel must conduct the tasks described in this
section of the document.
N O T I C E
Do not disassemble the instrument for maintenance. If the internal components must be cleaned or
repaired, contact the manufacturer.
7.1 Maintenance schedule
Table 6 shows the recommended schedule of maintenance tasks. Facility requirements and
operating conditions may increase the frequency of some tasks.
Table 6 Maintenance schedule
Task 1 month 6 months As necessary
Clean the cell on page 20 X
2
Replace the reagent bottles on page 21 X
2
Clean the cell more or less frequently as necessary.
English 19
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