JF-1A Conductivity Sensor
A440-009
Page 8 of 56
FEBRUARY 2009
6.0 MECHANICAL INSTALLATION
See Installation and Safe Use Manual for detailed mechanical installation
instructions.
6.1 LOCATION
The JF-1A Sensor should be mounted in downstream proximity to the additive
injection site. The user MUST insure that additive will be completely mixed at
the point at which the fuel is sensed by the JF-1A sensor. An in-line mixer can
be used, or more conveniently the injection site can be followed by a pipe “T” or
bend to cause turbulent flow mixing of additive. Insufficient mixing will result in
poor controller results and erratic average load conductivities.
NOTE: The Sensor should be mounted well away from possible
sources of electromagnetic noise, such as large pump motors, AC
power Lines, or electrical circuits containing large transient switching
currents.
Note: Prior to arc welding in proximity to the JF-1A sensor (closer
than 10 meters (30 feet) the sensor should be either removed from
the product line or at a minimum disconnected from all electrical
connections to the sensor. Welding circulation voltages can exceed
protection ratings of the sensitive output circuits located in the JF-1A
sensor.
6.2 PIPE CONNECTIONS
See Installation and Safe Use Manual for detailed mechanical pipe connections
instructions.
6.3 PIPE VALVE
The nipple should be supplied with a 1” Open Throat Ball Valve.
NOTE: The Ball Valve MUST Have a Clear Opening of 1.0” through its
center to allow the D-2 sensor to pass unobstructed. Ball valves can be
purchased directly from D-2.