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

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Installing the <strong>BVM</strong>5. Installing the <strong>BVM</strong>This section describes how to mount the <strong>BVM</strong>, install the voltage sense leads, and terminate thewires at the <strong>BVM</strong> and jar ends. The <strong>BVM</strong>-<strong>40</strong> system consists of the <strong>BVM</strong>-<strong>40</strong> unit and cables thatconnect the unit to the jars being monitored. Refer to the system drawings and verify allcomponents are available before starting installation.WARNING: Do not energize the <strong>BVM</strong> or any component with 115VAC or battery voltage untilafter the installation is complete.The maximum length for each voltage sense lead is 100 feet (≈30.5 meters) from <strong>BVM</strong> to jar.Consider this length and locate the <strong>BVM</strong> reasonably close to the jars (batteries). Mount the <strong>BVM</strong>to allow for front and rear panel access. You will need the following tools (or equivalents) tomount and connect the <strong>BVM</strong>:• Panduit CT-260 crimper for terminals.• Flat blade and Phillips screwdrivers for <strong>BVM</strong> connectors and mounting hardware.• Drill and 7/32" (0.218") drill bit.5.1. Mounting the <strong>BVM</strong>Normally, mount the <strong>BVM</strong> directly to the outside top or inside top of the battery cabinet.Four threaded mounting holes on the <strong>BVM</strong> top and bottom allow mounting from either side.Refer to drawing BDS-363-A572 for typical installation.If you are securing the <strong>BVM</strong> to the inside top of the cabinet, use the four standoffs providedto ensure adequate ventilation through the top cover. A template drawing (included) identifieswhere to drill the holes in the battery cabinet. Using the template, drill the holes using a 7/32"(0.218") drill bit, remove any burrs from the drilled holes, and mount the unit with thesupplied screws (and standoffs if required).WARNING: The four mounting screws must not hit the internal components in the <strong>BVM</strong>-<strong>40</strong>.Do not substitute the four screws supplied (#10-32x3/8"). The screws must not go more than3/8" into the unit. The supplied screws will provide sufficient holding strength for mountingthe <strong>BVM</strong>-<strong>40</strong> to surfaces up to 1/8" thick.After mounting, ensure the ventilation holes on the top of the <strong>BVM</strong> are not blocked.5

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