Flowline LD35 DeltaSpan - Manual (Page 5)

Rev B MN301035 5 of 16
SAFETY PRECAUTIONS Step Four
About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS PRODUCT.
This manual includes information on all versions of the DeltaSpan™ Series Pressure Level Transmitter from
Flowline; series LD34‐S___ and LD35‐S___. Please refer to the part number located on the transmitter
label to verify the exact model which you have purchased.
User’s Responsibility for Safety: Flowline manufactures a wide range of liquid level sensors and
technologies. While each of these technologies are designed to operate in a wide variety of applications, it
is the user’s responsibility to select a technology that is appropriate for the application, install it properly,
perform tests of the installed system, and maintain all components. The failure to do so could result in
property damage or serious injury.
Proper Installation and Handling: Only properly‐trained staff should install and/or repair this product.
Use a proper sealant with all installations. Always check for leaks prior to system start‐up.
Wiring and Electrical: CAUTION: Do not exceed specified supply voltage rating of 33 VDC. Permanent
damage not covered by warranty will result. This device is not designed for 120 or 240 volt AC operation.
Use only on 10 to 33 VDC.
Temperature and Pressure: The LD34 and LD35 series are designed for use in application temperatures
from ‐20° to 80°C (‐4° to 176°F). Both series are designed for use at pressures up to 2 x the full span.
Material Compatibility: Both series are made of 316 Stainless Steel (316 SS) with a cable of Polyurethane
or Ethylene Tetrafluoroethylene (ETFE). The LD35 series has a sensor face of PTFE coated FKM
fluoroelastomer. Make sure that the model which you have selected is chemically compatible with the
application liquids.
Flammable, Explosive and Hazardous Applications: DO NOT USE THE DELTASPAN™ LD34 or LD35 SERIES
LEVEL TRANSMITTER IN HAZARDOUS LOCATIONS.
Make a Fail‐Safe System: Design a fail‐safe system that accommodates the possibility of transmitter
failure or battery power loss. In critical applications, Flowline recommends the use of redundant backup
systems and alarms in addition to the primary system.