Flowline LD30 DeltaSpan - Manual (Page 12)

12 of 14 MN301030 Rev B
INSTALLATION Step Nine
The LD30 series is designed to operate with only the installation thread being exposed to the fluid. Avoid
installing the level transmitter along the bottom of the tank as materials such as sludge will build up and
coat/cover the port.
1. Location: Select a location where the temperature of the transmitter will be between 0 and 175°F (‐18 to
79°C). Distance from the receiver is limited only by total loop resistance. The tubing or piping supplying
pressure to the unit can be practically any length required but long lengths will increase response time
slightly.
2. Position: The transmitter is not position sensitive. However all standard models are originally calibrated
with the unit in a position with the pressure connection downward. Although they can be used at other
angles, for best accuracy it is recommended that units be installed in the position calibrated at the factory.
3. Pressure Connection: Use a small amount of plumber’s tape or other suitable sealants to prevent leaks.
Be sure the pressure passage inside the port is not blocked.
4. Electrical Connections: Wire Length ‐ The maximum length of wire connecting the transmitter and
receiver is a function of wire size and receiver resistance. Wiring should not contribute more than 10% of
the receiver resistance to total loop resistance. For extremely long runs (over 1000 feet), choose receivers
with higher resistance to minimize the size and cost of connecting leads. Where wiring length is under 100
feet, wire as small as 22 AWG can be used.