• Useful for measuring workpieces with grooves that cannot be measured by a two-point or three-point inside micrometer.
• Carbide-tipped measuring faces.
• Equipped with a constant measuring-force device.
• An optional reference gage, such as Gauge Block Accessory Set, CERA Inside Micro Checker (more than 25 mm) or a setting ring (nominal size below 300 mm),
is required for accurately setting the micrometer before measuring.
SPECIFICATIONS
Metric
Order No. | Range (mm) | Resolution (mm) | Maximum permissible error J MPE (μm | Jaw | Mass (g) |
345-250-30 | 5 - 30 | 0.001 | ±5 | Pin | 320 |
345-251-30 | 25 - 50 | ±6 | Anvil | 325 |
Inch / Metric
Order No. | Range (in) | Resolution | Maximum permissible error J MPE (in) | Jaw | Mass (g) |
345-350-30 | 0.2 - 1.2 | 0.00005 in/ 0.001 mm |
±0.00025 | Pin | 320 |
345-351-30 | 1 - 2 | ±0.0003 | Anvil | 325 |
• Power source: SR44 battery (1 pc.), 938882 included as standard (for operational checks)
• Battery life: Approx. 2.4 years under normal use
• Position detection method: Electromagnetic induction-type rotary encoder
Note 1: For the functions, refer to SERIES 293 with SPC data output on page 02-7.
This model is NOT water-proof. Also, the origin setting is the free preset type.
Note 2: The minimum pitch circle measurement is ø5 mm with pin type (345-250-30, 345-350-30).
แบรนด์สินค้า | MITUTOYO |
---|---|
Digital/Analog | Digital |