Depth micrometer
150 - 300 mm
MITUTOYO
SERIES 329, 129 — Interchangeable Rod Type
FEATURES
• ø4mm interchangeable rods, with lapped measuring end, provide a wide measuring range in 25mm increments.
• Ratchet stop provides constant force.
• Measuring rod lock.
• SPC output (Series 329).
Technical Data
Accuracy: ±3μm/±.00015” for micrometer head feed
(excluding quantizing error for digital models)
±(2+L/75)μm for interchangeable rod,
L = Max. measuring length (mm)
±[.0001+.00005 (R/3)]”
R = Max. measuring length (inch)
Fraction rounded up
Resolution*: 0.001mm or .00005"/0.001mm
(.0001”/0.001mm: 329-351-10)
Graduation**: 0.01mm or .001”
Flatness of reference face: 1.3μm (.00005”) for 63.5mm
(2.5”) width base,
2μm (.0001”) for 101.6mm (4”) width base
Flatness of measuring rod face: 0.3μm
Parallelism between reference face and measuring rod face:
(4+L/50)μm, L = Max. measuring length (mm)
[.00016+.00004 (R/2)]” ,R = Max. measuring
length (inch)
Fraction rounded up
Measuring rod diameter: ø4mm
Display*: LCD
Battery*: SR44 (1 pc.), 938882
Battery life*: Approx. 1.2 years under normal use
*Digital models **Analog models
Functions of Digital Model
2-point Preset, Zero-setting, Data hold, Automatic power
ON/OFF, Data output, Preset inch/mm conversion (inch/mm
models) Function lock
Alarm: Low voltage, Counting value composition error
