Overview; Warnings And Precautions - GMC EL-53200 User Manual

The EL-53200 Battery Enclosure Seal Pressure Tester (BESPT) is used for low pressure leak testing on
battery electric vehicle (BEV) battery packs for leaks as small as 10 SCCM. It is designed to perform leak
tests at low pressure (-0.5 psi) to prevent damage to the battery compartment and the associated
seams/seals.
The tool utilizes an internal pump that supplies low pressure or vacuum without external sources.
The BESPT is powered by an external 12VDC 4A power supply that connects via a 2.1mm plug. Pressure
and Vacuum ports on the side of the BESPT mate to a 6-Ft. hookup hose through quick connects that
also mate to battery pack specific adapters. The BESPT is operated through a dedicated
PC application using the USB cable.

Warnings and Precautions

• Leak testing of battery packs is only to be performed when indicated by diagnostic procedures.
Consult GM vehicle service procedures for specific applications.
• The battery pack must be fully disconnected from the vehicle prior to leak testing.
• Battery pack safety interlock systems must not be modified or disabled.
• Only approved adapters are allowed for sealing off electrical connector housings and vent covers.
Consult GM vehicle service procedures for specific applications.

Overview

BESPT PC Application V1.36, Tester Firmware V1.03, 10/21/2021
41