Power Supply
Shield
Jacket
Shield
Wires
TFF Torque Sensor Family Manual
9
Sensor Solution Source
Load · Torque · Pressure · Multi-Axis · Calibration · Instruments · Software
www.futek.com
Shield Usage and Connections
• Cable shielding should be grounded on one
end, either the sensor side or instrument
side to avoid ground loops .
• A shield connection listed as floating on a
sensor’s spec sheet means the cable shield
is not connected on the sensor side and may
be connected on the instrument side
to ground .
• Shield connections are located
on the sensor’s spec sheet .
Calibration
• A yearly calibration is recommended . But
verification and calibration period shall be
defined based on application, conditions,
endurance and usage .
• FUTEK offers NIST calibrations as well
as A2LA certified calibrations for total
uncertainty .
• For more information on available
calibrations visit FUTEK calibration web
page at:
http://www .futek .com/calibration-
services .aspx
• For recalibration orders visit the FUTEK
recalibration page at:
http://www .futek .com/
recalibration .aspx
• An online summary of calibration results
is available at:
http://www .futek .com/
calibrationData .aspx
SHUNT
A shunt is an external resistance applied across
two points on the load cell’s Wheatstone
bridge to generate a known, fixed output from
the sensor .
Shunt results can be used to set up instruments
as well as compare changes to the load cell
output over time and usage .
When selecting the appropriate shunt
resistance for your load cell, we recommend a
resistance that generates an output of about
80% of the sensor’s rated output . It is important
to have a shunt resistance that results in an
output that is less than the full output of the
load cell .
An online shunt calculator can be found at
http://www .futek .com/shuntcalc .aspx
to find
a resistance that will generate a certain shunt
output level, or to estimate the output for a
known shunt resistance .
TEDS
Transducer Electronic Data Sheet (TEDS)
standard is available for FUTEK sensors and is
utilized by select FUTEK instruments .
Through the use of TEDS load cell calibration
information can be stored with sensor, or
sensor cable, for use with TEDS capable
instruments .
FUTEK utilizes the Bridge Sensor template 33
for the TFF family .
The following FUTEK instruments are TEDS and
TFF compatible:
IPM650
Panel Mount Display
IHH500
Handheld Instrument
Bridge Sensor
XXX
Ω
+ Excitation
+ Signal
Sh
un
t C
al
– Signal
– Excitation
