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2150EX Area Velocity Flow Module
Section 5 Maintenance
5-4
Note
For storage, the battery packs may be rotated 180 degrees
and inserted into the 2191EX. This disconnects the packs for
storage.
5.3.2 SLA2191EX Lead-Acid
Batteries
The lead-acid battery packs should give you several weeks of
service before they need recharged, depending upon your data
storage intervals (see Table 1-5 and Figure 5-2).
Figure 5-2 SLA2191EX Battery Pack Voltage Chart
Measuring Input Voltage Input voltage can be monitored while you are connected to the
2150EX with Flowlink. The 2150EX also can record input voltage
readings.
The Flowlink voltage readings will drop lower when the batteries
are nearly depleted. The chart in Figure 5-2 shows the noticeable
voltage drop that starts to occur when the battery pack begins to
discharge. Keep in mind that battery discharge rates vary widely
depending on the your system’s operating environment.
Input voltage can also be checked manually by disconnecting the
2150EX module(s) from the 2191EX battery module and
attaching the volt meter to the connector on top of the 2191EX.
Check the battery packs individually, not as a pair.
WARNING
When using the above method to check voltage, use care
not to short any pins.