Dixon Bayco
4740T Interstate Dr. Cincinnati, OH 45246
Rev: Oct 2008
PH: 513 874 8499 FX: 513 874 8399
Page 1
Instruction Manual 10564
SST Thermo-Optic Sensors and Thermistor Dummy
2 Wire Black & White
PRODUCT DESCRIPTIONS:
These instructions cover the following FloTech products:
FT150S
Replacement SST Thermo-Optic Overfill Probe
FT151S
SST Thermo-Optic Sensor with 3”NPSM Probe Holder
FT155
Electronic 5 Channel Dummy
FloTech Thermo-Optic sensor and Thermistor Dummy are mechanically and functionally
compatible with Scully Thermistor, Thermo-Optic and Thermistor Dummy components.
These “Electronic” Thermistor sensors will provide reliable operation when installed as
replacements to conventional “Green Tipped” Thermistor sensors. FloTech Thermo-Optic
sensors and electronic dummy provide high reliability, long life, and quick start up in cold
weather.
INSTALLATION INSTRUCTIONS:
FloTech model FT151S can be mounted on a 3”NPT male pipe nipple. After the sensor is
mounted remove the lid.
To adjust sensor length, use ¾” NPT pipe nipples cut and threaded to desired length. Use
Teflon pipe dope or pink Teflon tape to seal the threads.
IMPORTANT: The actual sensing point adjustment should be determined by the total
response time required to prevent a tank overfill condition. The FloTech sensor reaction time
is one half second. The loading rack will also have a reaction time.
