23
1400500-101 Rev. A
Instructions for Use
(continued)
Zeroing
At least once a week you have to set your DENSITY4/5 to zero. Always set the DENSITY4/5 to zero
with the temperature you want to achieve higher stability. First select the target temperature as usual.
Always set your device to zero with water and air, so do both calibrations after another. To make the
unit zero correctly on your DENSITY4/5 follow the steps listed below:
4. Choose Zeroing with Water or Zeroing with Air.
Figure IU-07, Menu calibration
5. You will be prompted to clean the device and fill in double distilled water or dry air. You have the
opportunity to start and stop the pump or to start the process by pressing Ok.
a. Please clean the inner tube before starting the process: dry it with the pump and check,
if it is clean inside. Fill the tube with double distilled water or dry air now.
i. Water: fill in double distilled water with a syringe at the sample supply.
ii. Air: the outlet of the air pump has to be connected with one inlet of the sample
supply. The integrated air pump will blow dry air up to 10 seconds inside the tube.
Please do not remove that connection.
b. Start the internal calculations for the zeroing by pressing Ok now.
6. The process will be displayed visually and the message Instrument is set to zero with Water or
Instrument is set to zero with Air is shown. Your device will calculate the differences internally and
will set to zero after you confirm with Ok. You can still abort the process by pressing Cancel.
After the DENSITY4/5 finished zeroing, you will return to the measuring screen.
Info and Versions
General information about the software versions on the DENSITY4/5.
