EVO EXPERT Manual
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8.2.4
Calibration (Calibration submenu)
This submenu contains the viscosity and temperature calibration options that the user can exploit to
recalibrate the viscometer. Moreover, it also contains the ‘RESET’ option to restore the factory-stage
calibration and erase the memory and the programming.
IMPORTANT:
The viscometer contains a default calibration element, the Factory Calibration,
which is installed during the manufacturing process. It is for this reason that it
is unnecessary to calibrate the equipment when using it for the first time.
Nevertheless, certain norms of quality recommend that the equipment be
recalibrated once a year. This is why it is offered the user the possibility of
realizing this calibration, the User Calibration, without needing to send the
viscometer back to the usual provider, or to Fungilab.
Fungilab cannot be held responsible for the measurements taken by an
independently recalibrated viscometer and it is essential to follow the
instructions given by Fungilab carefully when recalibrating.
Calibration Norms:
To execute a viscosity calibration it is necessary to have on hand at
least a little standard calibration oil and a thermo-statization system to
maintain the sample at a constant temperature. If you do not have this
equipment then you will not be able to guarantee good post-calibration
measurements. Fungilab provides upon request the standard oils
necessary for the calibration, as well as the accessories need to
thermostatize the oils.
There are two types of calibration:
o
Calibration of reference spindle: These spindles are coaxial
spindles, with which the accessories APM or APM/B must be
used. By calibrating these spindles, you’re changing the
calibration of all of the viscometer’s spindles. Reference
spindles:
Model L
TL5
Model R
TR8
Model H
TR8
o
Calibration of the rest of the spindles: The calibration of any
spindle, which is different from the reference spindle, will only
modify the values of that individual spindle. The rest of the
equipment’s spindles will not be affected by this calibration. If
you want to calibrate more than one spindle and you don’t do it
with the reference spindle, the spindles will have to be
calibrated one by one. The oils used for each spindle will also
be different, so for calibration you should have standard silicon
oil for each spindle you’re calibrating.
Tables 5, 6 and 7 (page 67 and 68) specify the standard oils necessary
for each spindle.
This submenu is accessed through the main configuration menu, by choosing the Calibration menu
and pressing ‘ENTER’. Once at the submenu, the following screen will appear:
