7 Test Procedure
28 DHV0017 b2 EN © b2 electronic GmbH
7.4 Instrument Activation
Model without printer
1. Turn ON the instrument, by pressing the On/Off button
2. After a few seconds, the display will indicate the version of firmware and
other information related to the test instrument.
3. The test instrument will perform a self- test during startup to alert the user
to of any power supply or device abnormalities.
Model with printer
1. Turn ON the instrument, by pressing the On/Off button.
(If the instrument fails to start under internal battery power, the battery must
either be charged or is in need of replacement. To activate the instrument in
this case, connect the instrument to a power supply.)
2. After a few seconds, the display will indicate the version of firmware and
other information related to the test instrument.
3. The test instrument will perform a self- test during startup to alert the user
to of any power supply or device abnormalities.
4. The printer will print and line feed to inform the user that that printer
is ready for operation (i.e. paper is not jammed and ink ribbon is in
adequate condition).
7.5 Test Vessel Preparation
To maximize the quality and accuracy of the test results adhere to the following
recommendations and instructions:
1. Select the appropriate test vessel.
2. Clean the test vessel and electrodes with lint-free wipes and a suitable
solvent such as hexane, heptane or petroleum ether.
3. Remove residual solvent from the test vessel.
4. Install the test vessel in the test chamber
5. Insert the spacer gauge between the electrode pair.
6. Rotate the spacing control arms until the electrodes contact the spacer
gauge with light pressure.
7. Remove the spacer gauge. The gap is set.
5. Once the test instrument is activated, fill the test vessel according to local
filling standards for sampling. Avoid agitating the test liquid in order to
prevent air bubbles.
6. Verify that the test sample liquid covers the electrodes.
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