Albér BVM-40 Battery Voltage Monitor User's Guide - Alber

Installing the BVM5.2. Voltage Sense Lead Harness RoutingThe installer normally determines the wire routing. If the BVM is not located directly on or inthe battery cabinet, do not route the wires in the same conduit as other wires in the facility.Use a Panduit (or equivalent) insulated, slotted cable tray with cover to distribute wires to thejars. Suggested cable trays and covers are Panduit E1X1L66 with C1L66, or E5X5L66 withC5L66. When installing the tray along the length of each battery tier, make sure the tray doesnot interfere with jar replacement and the jars remain accessible for servicing afterinstallation.If the BVM is located on or in the battery cabinet, a cable tray is not needed. Neatly tie wrapthe wires in bundles, with appropriate service lengths available.5.3. Voltage Sense Lead ConnectionsThe supplied wiring harness is for batteries with up to 40 jars. Some batteries will have fewerthan 40 jars, and all the sense leads will not be needed. In this case, you should remove anddiscard the extra leads (see below).Route each sense lead from the BVM to the jar and cut to length. Before connecting to thejar, install a tab washer or "C" clamp on the battery for making connection; refer to drawingBDS-1165-A568 for details. Also, you must install a current limiting resistor (supplied) at theend of each lead nearest the battery; refer to BDS-120-A373. Use drawing BDS-2268-B946for identifying harness assemblies and locating sense leads.If the battery has fewer than 40 jars, connect the lead that would normally connect to thepositive post of the next jar to the negative post of the last jar. For example, if the battery has32 jars, connect the lead that normally connects to jar 33 positive to the negative post of jar32. Albér recommends you remove the connector cover and cut off and discard any unusedharness leads.5.4. Alarm Relay Contact ConnectionsThe alarm relay contact connections are for the user to monitor high or low system cell voltages,alarm contacts will indicate higher or lower cell voltage on the harness. These connections areused for accessing the three connections on the Mux board (P2) to the alarm contacts.Alarm contacts on P2 on mux board 1101-677D exist on the following three connections: Pin 11 (common) (C) Pin 12 Normally Closed (NC) Pin 13 Normally Open (NO)7