Page 30 of 42 pages
Zero setting of the measuring system MINILEVEL „NT“ 11 with LEVELMETER C25/DC
Prior to adjusting the zero point, the instrument should be allowed time to acquire the ambient, respectively the
work-piece temperature. Also the measuring system should have been switched on for about 1 min. (for
sensitivity of 1 µm/m about 3 minutes)
The absolute zero setting can be done in two ways.
a) with the MINILEVEL NT
- Slide the MINILEVEL NT onto a flat, horizontally levelled surface (e.g. engineer's surface plate)
- The position of the MINILEVEL NT is to be marked on the surface.
- Press the pushbutton "M" once until the ZERO is flashing, use the + or - keys to bring the
display to "0"
- Now the MINILEVEL NT is to be turned 180 degrees and slid exactly onto the previously marked
position.
- By means of the + / - keys set the display to half the value now showing.
- Now reverse the MINILEVEL NT once more. The display should now show the same value as before
but with reversed indication.
- The display on the LEVELMETER C25/DC must be adjusted with the potentiometer ZERO to indicate
the same value as on the MINILEVEL NT
b) using the LEVELMETER C25/DC
- Slide the MINILEVEL „NT“ onto a flat, horizontally levelled surface (e.g. engineer's surface plate)
- The position of the MINILEVEL „NT“ is to be marked on the surface.
- The display is to be set to zero by means of the potentiometer "ZERO" on the LEVELMETER C25
- Now the MINILEVEL „NT“ is to be turned 180 degrees and slid exactly onto the previously
- By means of the potentiometer set the display on the LEVELMETER C25 to half the value now
showing.
- Now reverse the MINILEVEL „NT“ once more. The display should now show the same value as
before but with reversed indication.
Zero setting
of the measuring system MINILEVEL „NT“ 11 with LEVELMETER 2000
Prior to adjusting the zero point, the instrument should be allowed time to acquire the ambient, respectively the
work-piece temperature. Also the measuring system should have been switched on for about 1 min. (for
sensitivity of 1 µm/m about 3 minutes)
Condition:
Only one channel "A" or "B" active to be set to ZERO at a time. Select Channel „A or B“
Select channel "A" or "B"
press repeatedly, until the cursor is flashing under SENSOR
confirm selection.
press repeatedly until the required channel, "A" or "B" is displayed, flashing
confirm selection. The Levelmeter 2000 now searches the address of the
instrument connected.
confirm displayed address
Displayed mode changes to ABSOLUTE, respectively to the last set-up mode
Start reversal measurement
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