LX-1 Series Instrument
www.tensitron.com
pg. 12
▪
Scroll to VIEW DATA LOG and press ENTER.
o
Clear Single Point Log
To clear stored data, scroll to CLEAR SINGLE PT LOG, press ENTER,
and follow the prompts.
•
TENSION UNITS Screen
To change the unit of measure in which tension readings are logged:
▪
Scroll to Tension Units and press ENTER.
▪
Use the Up and Down arrows to select Kilograms,
DecaNewtons or Pounds and press ENTER.
•
SELECT MATERIAL Screen
Press ENTER while this display is shown to show the available options for the
material types. Use the up or down arrow to scroll to the option you want and
press ENTER to select it.
7. ADVANCED OPERATION
•
General Calibration Precautions
1. To verify the accuracy of your instrument, check the tension on a sample
length of material by suspending known weights from the opposite end.
2. When performing this test, use a micrometer to measure your material
diameter/thickness and ensure it is dimensionally within tolerance, +/-
.003” of size, and not out of round.
3. Only use free-hanging weights which are traceable to National Standards
on correctly-sized materials. (See Figure 8.)
4. Never use any tensioning device that attempts to convert rotational torque
values into tension loads, as these types of systems are highly inaccurate.
Also, any load cell system must be routinely checked for accuracy using
traceable weights as these types of systems are also highly inaccurate
and generally do not meet the minimum repeatable accuracy standards
required by ISO-17025.
5. NEVER SIMULATE TENSION LOADS ON THESE INSTRUMENTS BY
USING A CALIBRATION BAR!
•
Check Accuracy
1. Confirm that the size material
you’re working with is the same size
selected in your LX
’s display.
2. Before engaging the LX instrument onto the material, zero the instrument
by holding
it in the same attitude you’ll be taking the readings and press
the “Enter” or “Zero” button. This will eliminate any small tare effects.
3. Take readings along the material.
FOR
BEST
RESULTS
ALWAYS
TAKE
SEVERAL
READINGS
OF
THE
CABLE
TENSION
BY
DISENGAGING
AND
THEN
RE-ENGAGING
THE
INSTRUMENT
ONTO
THE
CABLE.
4.
Verify the tension value. For example, if your suspended weight is 40.0 lb.
your instrument should also indicate 40.0 lb. +/- 5.0 lb. once properly
engaged to the material.
This procedure confirms the instrument’s
accuracy and it is now ready for use.
