Topcon BM-7AC - Using the Unit in a Other Device; Reducing Instrumental Error between a Plurality of Instruments

2. Measurement Operation
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2.1.3 Using the Unit in a other device
It is possible to use the BM-7AC in a system. A system is presumed to be an apparatus in
which the BM-7AC is mounted on an XY stage, and measurement is performed while moving.
When using the unit in a system, refer to the followings.
Communication Specifications
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「4. Communication With a PC」
Installation Materials
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「Appendix: External Dimensions」
2.1.4 Reducing instrumental error between a plurality of
instruments
It is possible for the BM-7AC to perform correction between a pair of BM-7AC or with this
company's high-end models SR-3,SC-777 to reduce instrumental error.
There are two methods for performing correction between instruments.
・ Use Colorimetry program CS-900A.
・ Use the Direct Correction function.
■ Using CS-900A
The reference light source sample should be the same kind of light source as the light source
actually being measured, and should have stable light output.
The procedure for performing correction between instruments using CS-900A, refer to the [CS-
900A INSTRUCTION MANUAL].
■ Using the Direct Correction Function
In the method of using the Direct Correction function, a RS-232C cable and a reference light
source sample are necessary.
Request
・ The reference light source sample should have stable light output and be the
same type as the light source to be measured.
・ To use the Direct Correction function, the RS-232C parameters of the two
luminance colorimeters must be the same.
When using the Direct Correction function, first, measure the light source using the reference
instrument, and write that measurement data to the BM-7AC to be corrected.
SR-3
Source
BM-7AC
RS-232C
Data