Flowline LD35 DeltaSpan - Manual (Page 2)

2 of 16 MN301035 Rev B
INTRODUCTION / TABLE OF CONTENTS Step One
The DeltaSpan™ LD34 Series General Purpose Water Small Bore or LD35 Series General Purpose Wastewater
Level Transmitters are manufactured for years of trouble free service. The pressure transmitter measures the
height of liquid above the position in the tank referenced to atmospheric pressure. Lightning and surge
protection (not guaranteed or covered by standard warranty) is included standard to stand up in harsh
applications. The transmitters are vented for barometric pressure compensation. Vent is covered with a
maintenance‐free filter preventing particulate or water droplets from entering the transmitter. For extra
protection against humidity we offer the LD90‐3000 desiccant filter that can be attached to the vent tube.
Applications
 LD34 Series
o Ballast tanks; Ground water monitoring; Surface water monitoring; Dewatering; Down hole;
Remediation and other environmental monitoring applications.
 LD35 Series
o Sewage lift stations, industrial slurries, industrial sumps, landfill leach ate, reservoirs, sludge
pits, oil tanks, etc. reservoirs, sludge pits, oil tanks, etc.
Table of Contents
Specifications: ............................................................................................................................................. 3
Dimensions .................................................................................................................................................. 4
Safety Precautions: ..................................................................................................................................... 5
Components: ............................................................................................................................................... 6
Getting Started ............................................................................................................................................ 7
How to convert Pressure into Liquid Height? ................................................................................. 7
How does Specific Gravity affect pressure transmitters? .............................................................. 8
How to select the correct pressure transmitter? ........................................................................... 9
How to configure a panel meter when a pressure transmitter is used? ...................................... 10
Electrical Installation ................................................................................................................................. 11
Wiring ....................................................................................................................................................... 12
Wiring to a Loop Powered Display: ............................................................................................... 12
Wiring to a Generic PLC: ............................................................................................................... 12
Wiring to the DataView™ LI55 Series Level Controller: ................................................................ 12
Wiring to the Commander™ LI90 Series Multi‐Tank Level Controller: ......................................... 12
Wiring to the DataPoint™ LC52 Series Level Controller: .............................................................. 13
Wiring to a DataLoop™ LI25 Series Level Indicator without the Backlight: ................................. 13
Wiring to a DataLoop™ LI25 Series Level Indicator with the Backlight: ....................................... 13
Installation ................................................................................................................................................ 14
Interference .................................................................................................................................. 14
Termination ................................................................................................................................... 14
Maintenance ............................................................................................................................................. 15
Testing the transmitter ................................................................................................................. 15
Warranty ................................................................................................................................................... 16