2150EX AV Flow Module - Isco

2150EX Area Velocity Flow System
Section 5 Maintenance
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.
CAUTION
Do not deep discharge the SLA2191EX battery packs, or you
will reduce their cycle life. Battery life is improved by regularly
scheduled recharging before a drop in voltage is indicated.
Charging Batteries
Charge the batteries only with Isco’s 8V2191SLA Lead-Acid
Battery Charger, P/N 60-2004-343 (Figure 5-3). The maximum
ambient temperature when charging is 50°C or 122°F. Never
charge the battery packs in a hazardous atmosphere!
WARNING
Charge SLA2191EX battery packs only with the 8V2191SLA
charger at an ambient temperature below 50°C (122°F), and
never in a potentially explosive atmosphere.
CAUTION
Due to the self-discharge characteristics of this type of battery,
it is imperative that the batteries be charged after 6 to 9
months of storage to avoid possible permanent loss of capacity
due to sulfation.
5-5