Advertisement
5c) The sensor 3-7 has to be pressed onto the base plate. The coupling symbol ((•))
(measurement in action) is displayed, if measuring procedure has been established
successfully by the process of sound sending and receiving. On the display ap-
pears `5.0mm` (debit thickness of the base plate) and `CAL` in turn. As soon as the
value is stabilized, the `CAL` key 3-8 has to be pressed to confirm. Then the in-
strument changes back into the measurement mode.
5d) Calibration has been finished and automatically saved in the instrument.
6 Measuring procedure
6a) The Power key 3-4 has to be pressed to switch on the instrument.
6b) The mm/ inch key 3-3 has to be pressed to select the correct measurement unit.
6c) The sensor 3-7 has to be placed onto the material surface to be measured, pro-
vided that the material code has been selected correctly. Assure yourself that cou-
pling is fine and the symbol ((•)) 3-11 is active. The measurement result will be dis-
played.
6d) The measurement result is saved until a new measurement is performed. The
last value is conserved in the display until the instrument is switched off.
6e) The instrument can be switched off by the Power- on/ Power- off key or by Auto-
Power-off function, one minute from last key operation.
7 Measuring by velocity setting (not valid for TB 200-0.1 US-red)
7a) The last saved velocity appears in the display by pressing the VEL- key 3-13
7b) Measuring of coatings & materials by a known thickness
Velocity can be adjusted by pressing the Plus- or the Minus- key. By doing this, the
value shown on the display is changed higher or lower. First the increase is 10m/ s. If
the Plus- or Minus- key is pressed for longer than 4 seconds, the increase is 100m/ s.
A little oil has to be dropped onto the material to be measured. Now the sensor is
pressed onto the surface to be measured. The reading on the display is the material
thickness, assumed that coupling is well.
If velocity of a special material is known, it is easy to measure the material thickness
by means of step 7b)
7c) Measuring of coatings and materials with an unknown thickness
A test material of known thickness has to be selected.
6
TB-US-BA-e-1713
Advertisement
