2150EX AV Flow Module - Isco
2150EX AV Flow Module - Isco
2150EX AV Flow Module - Isco
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<strong>2150EX</strong> Area Velocity <strong>Flow</strong> System<br />
Section 5 Maintenance<br />
5.2 Maintenance Kits<br />
Teledyne <strong>Isco</strong>, Inc.<br />
Customer Service Dept.<br />
P.O. Box 82531<br />
Lincoln, NE 68501 USA<br />
Phone: (800) 228-4373<br />
(402) 464-0231<br />
FAX: (402) 465-3022<br />
E-mail:<br />
<strong>Isco</strong>Info@teledyne.com<br />
Many of the parts called out in the Installation and Maintenance<br />
sections of this manual are available in maintenance kits. Kit<br />
number 60-2059-001, which supports the <strong>2150EX</strong> <strong>Module</strong>, contains<br />
O-rings for the connectors and desiccant cartridge, a hydrophobic<br />
filter, and a one-pound container of indicating silica gel<br />
desiccant. Kit number 60-2009-332, which supports the 2191EX<br />
Battery <strong>Module</strong>, contains O-rings for the connectors, gaskets for<br />
the battery doors, humidity indicators, and bags of desiccant. You<br />
can order the kits by calling Teledyne <strong>Isco</strong>’s Customer Service<br />
Department.<br />
5.3 2191EX Batteries When connected to a 2191EX battery module, the <strong>2150EX</strong> is<br />
powered by either two LTC2191EX 8 volt lithium battery packs or<br />
two SLA2191EX 8 volt lead-acid battery packs, which are stored in<br />
the 2191EX. These packs are sealed and explosion protected, so<br />
they can be safely removed and replaced in a potentially explosive<br />
atmosphere.<br />
WARNING<br />
To avoid overloading the fuses in the LTC2191EX lithium<br />
battery packs, disconnect the <strong>2150EX</strong> module(s) before<br />
installing or replacing the lithium battery packs. The<br />
SLA2191EX lead-acid battery packs do not contain fuses,<br />
and do not require that the <strong>2150EX</strong> module(s) be<br />
disconnected.<br />
The two types of battery packs differ in that the lead-acid batteries<br />
are rechargeable. Because they do not contain fuses, the<br />
lead-acid batteries do not require the same installation precautions<br />
as the lithium batteries.<br />
5.3.1 LTC2191EX Lithium<br />
Batteries<br />
Measuring Input Voltage<br />
The lithium battery packs should give you several months of<br />
service, depending upon your data storage intervals (see<br />
Table 1-5). Because the fuses in the battery packs can blow if<br />
overloaded, take care when installing the packs.<br />
Input voltage can be monitored while you are connected to the<br />
<strong>2150EX</strong> with <strong>Flow</strong>link. The <strong>2150EX</strong> also can record input voltage<br />
readings. Keep in mind that battery discharge rates vary widely<br />
depending on the your system’s operating environment.<br />
If the fuse in a lithium battery pack is overloaded, it will blow the<br />
fuse and the battery pack will need to be replaced. To avoid overloading<br />
the fuses, be sure to disconnect the <strong>2150EX</strong> module(s)<br />
before installing or replacing battery packs. If you suspect a<br />
blown fuse, or cannot connect to <strong>Flow</strong>link to check the input<br />
voltage, you can use a volt meter to measure the voltage. DO<br />
NOT remove the battery packs and apply a volt meter directly to<br />
the packs. For safety reasons, the packs have an internal voltage<br />
regulator that shuts the voltage off when the battery packs are<br />
not installed.<br />
5-2
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