ALTANA Haze-Gard Plus Operating Instructions - Manual (Page 14)

4. Operation
Select the parameter you want to
measure.
By pressing one of the three
buttons you can either switch bet-
ween parameters (in Continuous
Mode), or add a parameter to those
you have already chosen. Pressing
the button a second time displays this
parameter by itself.
Set the specimen at the appropriate
port.
Haze port (right side): For
transmittance and haze.
Clarity port (left side): For clarity.
Check for possible surface defects
such as scratches or fingerprints.
The specimen must lie flat during
measurements.
Start the measurement by pressing
the button or the foot
switch.