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Dh-21 – Xylem DH-21 User Manual

Page 57

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DH-21

Using the Graphical “W

ATER

LOG” Software 4-11

4.4.1.2 Stop Logging Option

The sensor can be paused and the logging operation halted by entering the OFF mode. The OFF
mode allows the execution of the options not allowed in the RUN mode except for Time/Date
and Diagnostics, which can only be executed in the RESET mode of operation. Figure 4-4 shows
how the OFF mode is invoked. You must confirm this option by clicking on the OK button to
prevent inadvertent operation.

Figure 4-4. Stop Logging Option

4.4.1.3 Start Logging or RUN Option

In the RUN mode of operation, the “

W

ATER

LOG” will make measurements at an interval set by

the Logging Option specified in Logging Mode. The data from the samples will be stored in the
FLASH EEPROM in the “

W

ATER

LOG”. The “

W

ATER

LOG” will enter a low-power mode of

operation to conserve battery power during the wait times. You can cause the “

W

ATER

LOG” to

enter the RUN mode shown in Figure 4-5 by selecting the Operation Mode button. You will be
asked to verify the selection to prevent inadvertent operation.