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KOBOLD Instruments Inc.
1801 Parkway View Drive
Pittsburgh, PA 15205
PH: 412-788-2830
FAX: 412-788-4890
www.koboldusa.com
Series TED
Optical Liquid Level Sensor
Precautions
• User's Responsibility for Safety: KOBOLD manufactures
a wide range of process 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,
to install it properly , to perform tests of the inst alled system,
and to maintain all components. The failure to do so could
result in property damage or serious injury.
• Proper Installation and Handling: Use only PTFE pipe
tape as the thread sealant in all installations. Never
overtighten the sensor within its fittings. Always check for
leaks prior to system start-up.
• Wiring and Electrical: Because this is an electrically
operated device, only properly trained personnel should
install and maintain this product. Be sure that the power
supplied to the unit is appropriate for the electronics
version supplied. Electrical wiring of the sensor should be
performed in accordance with all applicable national, state
and local codes.
Specifications:
Wetted Parts: PFA: PFA / PTFE
Polysulfone: Polysulfone
SS: 303 SS, FKM,
Borosilicate Glass
• Temperature and Pressure: The TED is designed for
use in application temperatures and pressures as listed
below. Operation outside these limitations will cause
damage to the unit.
• Material Compatibility: The TED’s process wetted parts
for the various body materials are state d below . Make sure
that the TED is chemically compatible with the application
liquids. While the sensor’s outer housing is liquid resistant
when installed properly, it is not designed to be immersed .
It should be mounted in such a way that it does not
normally come into contact with fluid.
• Flammable, Explosive and Hazardous Applications:
The TED is not an explosion-proof design. It should not be
used in applications where an explosion-proof design is
required.
• Make a Fail-Safe System: Design a fail-safe system that
accommodates the possibility of sensor or power failure.
In critical applications, KOBOLD recommends the use of
redundant backup systems and alarms in addition to the
primary system.
Wiring Diagram:
Max. Pressure @ 70°F:PFA: 200 PSIG
Polysulfone: 200 PSIG
SS: 400 PSIG
Process Fitting: PFA: 3/8” MNPT
Polysulfone: 3/8” MNPT
SS: 1/2” MNPT
Temperature Range: -40°F to +230°F
Electrical Protection: NEMA 4
Power Supply: 5 - 35 VDC, 33 mA (excluding load)
Switch Type: NPN open collector, 300 mA max.
Electrical Connection: 18” wire leads, Polyethylene insulation,
1/2” male conduit (PS & SS models)
Installation Torque: PFA: 55 in.-lbs. max.
Polysulfone: 55 in.-lbs. max.
SS: 120 in.-lbs. max.
Part Number Information
Material Model Number
PFA
Polysulfone
303 SS
TED-3611
TED-2511F
TED-3212A
FM Rev. 12/03/13
Manual-TED_manual_1-28-02
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