Checkline DX2 User Manual

Page 2

1.0 Overview & Operating Principle

DX2 and Tension Meters are hand-held, mechanical instruments which accurately
measure the running as well as static tensions of a wide variety of process materials
including yarns, fibers, wires, optical fibers, tapes, etc. They employ the 3-roller
principle for tension measurement where the outer two reference guide rollers
remain fixed during measurement to establish a wrap angle over the middle sensing
roller. The middle roller, acting against an internal calibrating spring, is displaced
relative to the running line tension. This displacement is converted to a rotary
motion to turn a pointer on a scale to give a reading in grams tension.

NOTE: While illustrations show the Type DX2 Tension Meter, all references

apply to the Special Purpose Tension Meters as well.

NOTE: DX2 Special Purpose Types, including FX2, TX2, DX2F, RX2/BX2 and

KXB, are shown in the Appendix at the end of these instructions. They

all use the3-roller principle for tension measurement except that head

configurations and roller assemblies are different, having been designed

for special applications, as noted in the Appendix.

8.0 DX2 Special-Purpose Models

Essentially, all DX2 Special Purpose
models operate in a manner similar
to the standard Type DX2. In addition,
however, they offer special rollers an
head configurations for specific
applications.

OpTic FibErs — FX2

limiTEd accEss —dX2F

TapEs —TX2

WEbs & TapEs — rX2/bX2

Warp — KXb