Hach 910, Инструкция по эксплуатации инструмента

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Section 4
Page 33
MeterInstallation.fm
Mounting the Flow Meter
• Temperature (colder temperatures decrease battery life)
• Site hydraulics (second order effect caused by excessive turbulence)
The chart below provides typical expected battery life for each logger model:
You can access a real-time battery voltage check via InSight
®
software.
Select the 'Current Status' display. The chart below shows the estimated dc
voltage readings when approximately 30 days of battery life remain.
4.2 Mounting the Flow Meter
Important Note: Before using the flow meter, insert the port/vent plug into the
top hole of the unit with a
7
/
16
” wrench.
DANGER
Not for use in hazardous
locations where combustible
gases may be present.
When mounting the flow meter, remember to:
• Mount the meter so that the connectors face down. The end of the
meter that contains the batteries should face up. If the connectors face up,
they may corrode and allow water to seep into the instrument. See
Figure
13 .
• When not in use, cover the connectors with their protective caps to
prevent corrosion.
Use the appropriate manhole support bracket/spanner bar. See Replacement
Parts and Accessories on page 47 .
Table 4Estimated Battery Life
Model Battery Life in Days
910 60
920 90
930 365
Table 5Battery Voltage when a 30-Day Battery Capacity Remains
Model Battery Voltage (dc)
910 3.8
920 9.0
930 9.0