7418 East Helm Drive • Scottsdale, Arizona 85260 • 480.948.5555 • www.interfaceforce.com
Oper
at
or Ins
tructions IS
TL T
ension Link v1.2 12-01-2017
Page 3 of 5
1.6
Warnings / Hazards
Tension links are highly stressed devices and commonly have safety factors between three and five times
the rated capacity under static conditions. Fatigue applications and environmental factors can contribute to
reducing this margin. The user should determine media effects on the exposed tension link materials. Where a
corrosive environment is present, tension links can often be manufactured from corrosion resistant materials
or, alternatively, isolation barriers can be employed between the corrosive environment and the tension link.
•
When applying load to the tension link, the output should increase in the positive direction. Use the
calibration certificate for reference as to the output observed at certain loads.
1.5
Calibration
All Interface tension link load cells are calibrated in traceable test machines to best simulate normal loading
conditions.
Our goal is to match the loading conditions that would be experienced in service but it is not possible to totally
simulate the on-site structure for every tension link manufactured. It is for this reason that for optimum
system accuracy, a calibration in the final assembly is recommended. On-site calibration should be performed
with the instrument that is being used with this tension link load cell.
The following points should be followed to avoid potentially hazardous situations:
•
Do not weld near to installed tension links, as leakage currents may destroy the tension link's electric
circuits.
•
Tension links are sealed units which must not be dismantled. Damaged tension links should be returned to
Interface for repair and re-calibration.
•
The accuracy of the system is dependent upon correct installation of the tension link.
•
Tension link load cells must not be subjected to shock loads, such as using a hammer to force an assembly
together (fitting clevis pins into the mounting holes).
•
The tension link load cell should never be placed in a potential explosive environment unless the product is
suitably certified (ATEX or IECEx).
1.7
Inspection and Repair
Repair
Interface reccomends that all prepared and service of tension link load cells be performed by Interface.
