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Passameters are adjustable snap gauges which are mostly used for measuring and testing of round-cut and milled parts. They replace a large number of fixed gauges whilst this device also has the advantage of a number display if there are deviations to the preset value. The Passameter 3901 requires no additional display device and can be used immediately.
Gageblocks, gages, or a selected test piece is used to set the instrument to the nominal size. For this purpose, turn the adjusting nut to move the adjusting bolt in the axial direction, until the pointer approximates zero. Tighten the clamping nut to prevent an unintentional displacement.
The exact zero adjustment is made by turning the knurled knob on the rear panel. The dial adjustment can be fixed by means of the set screw.
Description
Application
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Technical Data
| Article | Passameter 3901 | |
| Version | Graduation 1 µm | Graduation 2 µm |
| Standard | DIN 863 | DIN 863 |
| IP protection class | Splash-proof measuring mechanism for safe measurement on the machine | |
| Measurement | analog | analog |
| Product type | Passameter, adjustable dial indicator, precision pointer micrometer, precision pointer dial indicator | |
| Resolution / Display Precision indicator | 1 µm (0,001 mm) | 2 µm (0,002 mm) |
| Flatness (measuring surfaces) | ≤ 0,3 µm (< 0,0003 mm) | ≤ 0,3 µm (< 0,0003 mm) |
| Parallelism (measuring surfaces) | ≤ 1 µm (≤ 0,001 mm) | ≤ 1 µm (≤ 0,001 mm) |
| Diameter (measuring surfaces) | 10 mm | 10 mm |
| Measuring stroke of the sensor | 2,5 mm | 2,5 mm |
| Measuring force generation | spring | spring |
| Measuring force standard | 5 - 10 N | 5 - 10 N |
| Display | precision pointer | precision pointer |
| Precision pointer display range | ± 70 µm (± 0,007 mm) | ± 140 µm (± 0,0014 mm) |
| Precision pointer scale division size | ≈ 0,8 mm | ≈ 0,8 mm |
| Precision pointer dial adjustment | ± 8 μm (± 0,008 mm) | ± 15 μm (± 0,0015 mm) |
| Anvil | adjustable | adjustable |
| Adjusting bolt adjustment range | 25 mm | 25 mm |
| Versions / Application range | 0 - 100 mm | 0 - 200 mm |
| Measuring surfaces made of CBN | on request | on request |
| Packing | stable box | stable box |
| Weight (Version 0 - 200 mm) | 0,8 - 1,3 kg | 0,8 - 1,9 kg |
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