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Introduction
This manual contains instructions for installing the components for Veeder-Root Digital Pressurized Line Leak
Detection (DPLLD). The DPLLD equipment performs 3.0 gph line leak tests following each dispense. Depending
on the software enhancement module installed, the DPLLD equipment will also allow, with certain pump types, 0.2
and/or 0.1 gph line tests at full pump pressure. The DPLLD equipment executes leak tests automatically to
eliminate the need for separate annual line leak testing.
1. The DPLLD, Digital Pressure Line Leak Detector, Form Number 8590, is Intrinsically Safe when
installed according to Control Drawing Number 331940-008.
2. The TLS-450PLUS/TLS-450 console/DPLLD sensors are not supported by the Red Jacket Variable
Speed Flow Controller (VSFC). The VSFC is designed for use with PLLD sensors/TLS-350
consoles only!
3. You must consult the Veeder-Root Line Leak Detection Systems Application Guide (P/N 577013-
465) for all information relating to DPLLD applicable pipe types, equipment requirements,
installation kits, and pump compatibilities.
4. A Sump Sensor is recommended for sites with line leak in the event the pump develops a leak.
Line leak will only detect a leak in the line, not in the pump.
Contractor Certification Requirements
Veeder-Root requires the following minimum training certifications for contractors who will install and setup the
equipment discussed in this manual:
Service Technician Certification (Previously known as Level 2/3):
Contractors holding valid Technician
Certifications are approved to perform installation checkout, startup, programming and operations training, system
tests, troubleshooting and servicing for all Veeder-Root Series Tank Monitoring Systems, including Line Leak
Detection.
TLS-4xx Technician Certification:
Contractors holding valid TLS-450 Technician Certifications are approved to
perform installation checkout, startup, programming and operations training, troubleshooting and servicing for all
Veeder-Root TLS-450 Series Tank Monitoring Systems, including Line Leak Detection and associated accessories.
All service personal on site must comply with all recommended safety practices identified by OSHA and your
employer.
Review and comply with all the safety warnings in the manuals listed in this document above and any other
Federal, State or Local requirements.
Warranty Registrations
may only be submitted by selected Distributors.
Product Marking Information
RELATED DOCUMENTS
Documents Required to Install Equipment
This intrinsically safe apparatus is only for use as part of a Veeder-Root Automatic Tank Gauging System (ATG
Console with probes and sensors). To install intrinsically safe apparatus, use the specific control drawing that
appears on the nameplate of the applicable associated apparatus (ATG Console):
Associated Apparatus
UL/cUL Control Drawing Number
TLS-450PLUS&TLS-450/8600
331940-008
