NDC BenchMike Pro 2025, Инструкция по эксплуатации

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1-4 BenchMike Pro Instruction Handbook: Introduction
The measurement area surrounds the Pass Line of the gauge and covers of the full measurement range of the
unit (1.0 in. for the Model 2025 and 2.0 in. for the Model 2050). The Pass Line of the gauge is located halfway
between the transmitter and the receiver. These areas are de-
fined as follows:
Model 2025: ±0.030 in. from the Pass Line
Model 2050: ±0.060 in. from the Pass Line
You will obtain the most accurate measurements from your
BenchMike Pro when the part is placed in this area.
NOTE: Specifications apply at the intersection of the Scan Centerline and the Pass Line.
1.5.1 Sources of Error
Please note that any motion of the part, while in a fixture or not, can induce measurement error.
Be conscious of the following potential sources of error during measurement.
Dust or film on the measured object will produce measurements greater than the actual size. Wipe oily or dusty
objects with a cloth before measuring them.
Dust or contamination on the transmitter or receiver scan window will also
produce incorrect measurements. Follow the cleaning procedure de-
scribed later in this manual as part of a routine maintenance program.
Incorrectly placing the object in the measurement area will also produce
incorrect measurements. Place the measured object perpendicular to the
scanning laser beam, and avoid tilting the measured object vertically with
respect to the scan path. The greater the object’s angle, the greater the
measurement error.
Temperature variations (see Troubleshooting section in the Operator
Guide) will cause expansion or contraction of the part. Accurate temperature measurements are necessary to
compensate for changes in product size.
As an object moves within the measurement area, certain errors will become more prominent, depending on the
direction and magnitude of this motion. In general, measurements are less affected by motion along the Scan
Centerline than by motion along the Pass Line.
Pass Line
Scan
Centerline
Ideal Lo-
cation
Direction of beam movement
Actual diameter
Measured
diameter