Schmidt ETB, Operating Instructions Manual, Page: 10 / 24

10
3.3.6 Zero Adjustment of the Measuring Position (Auto Zero)
Requirements :
- Tension meter switched on as described in Chapter 3.3.2.
- Unit of measure selected as described in Chapter 3.3.5.
To carry out zero adjustment
:
- Hold the ETB in the desired measuring position. Be careful to hold the instrument
absolutely steady.
- Press the POWER key.
The DISPLAY momentarily shows
0 0 0 0
and then switches to
0
cN
.
The ETB is now adjusted for the new material path and is ready to measure.
Zero adjustment is automatically carried out for the current measuring position.
Zero adjustment must be carried out whenever the tension meter does not
display “0” in measuring position.
The process material must not yet be inserted!
3.4 Operating Procedure
Requirements:
- Tension meter switched on (Ch. 3.3.2).
- Unit of measure selected (Ch. 3.3.5)
- Damping factor set, if necessary
(Ch. 3.4.1).
- Zero adjustment performed,
if necessary (Ch. 3.3.6).
To insert the process material
:
- Press the LEVER to tilt the outer GUIDE
ROLLERS sidewards.
- Thread the PROCESS MATERIAL
through the MEASURING ROLLERS
(FILAMENT GUIDE)
- Slowly release pressure on the LEVER
until the GUIDE ROLLERS return to their
original position.
It is important to assure that the PRO-
CESS MATERIAL runs smoothly between
the MEASURING- and GUIDE ROLLERS
To measure the process material
:
The DISPLAY now shows the measured tension values.
Error messages which might be displayed are described in Chapter 3.6.
To remove the process material
:
- Press THE LEVER and remove the PROCESS MATERIAL.
- Slowly release pressure on the LEVER until the GUIDE rollers return to their original
position.
fig. 3.4
PROCESS
MATERIAL
MEASURING
ROLLER
LEVER
GUIDE
ROLLERS