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E-127
Principles of Measurement
Illumination Area and Measurement Area
The CM-700d/600d allows selection from two measurement areas, SAV (
φ
3 mm) and MAV (
φ
8 mm),
according to the specimen and applications. A Target Mask (illumination area) suitable for the selected
measurement area must be attached to the instrument.
Note
With the CM-600d, only MAV (
φ
8 mm) is available.
Target Mask (illumination area)
The CM-700d/600d does not have a function to automatically detect whether the currently-attached
Target Mask is for SAV or MAV. You need to attach the correct Target Mask according to the selected
measurement area.
Since the Target Mask’s tip condition affects measured values, do not touch the inner surface by hand,
scratch it or allow it to get dirty.
Measurement Area
The measurement area can be switched by sliding the measurement area selector.
Note
With the CM-600d, only MAV (
φ
8 mm) is available. Consequently, it does not have a measurement area selector.
Simultaneous SCI/SCE Measurement
The CM-700d/600d offers simultaneous SCI (Specular Component Included)/SCE (Specular
Component Excluded) measurement by using “automatic SCI/SCE switching with an automatic optical
trap mechanism”.
Automatic optical trap mechanism
An optical trap automatically opens or closes according to the specular component mode (SCI/SCE/I +
E) specified with the instrument.
The light source flashes once for SCI measurement and once for SCE measurement respectively. When
Auto Averaging is specified, the flash is repeated for the specified number of measurements.
In either SCI or SCE mode, the automatic optical trap mechanism is not used. In I + E (SCE + SCE)
mode, the automatic optical trap mechanism is enabled. For the first flash, SCI measurement is
performed with the optical trap closed. For the second flash, SCE measurement is performed with the
optical trap open.
Communication Mode
The CM-700d/600d is set to the communication mode when it is connected to a PC. When the instrument
is controlled from the PC, the instrument's LCD screen shows “Communicating”. While this message is
displayed, the buttons of the instrument are disabled.
You can, however, send a command from the PC to the instrument to set it to the measuring button
enabled mode, so that you can start measurement by pressing the measuring button of the instrument. In
this case, the measured data is transferred to the PC and is not stored in the memory of the instrument.
If you want to control the instrument from a PC, you need software that allows the connection and
operation of the instrument.
If you want to develop your own program to control the instrument from a PC, contact a KONICA
MINOLTA-authorized service facility.