Specifications 7
Pulse Laser Station NPL-302 Series Instruction Manual 179
Dual-axis tilt sensor (NPL-332 single-axis) 71.3
Angle measurement 71.4
Precision 71.5
* These precisions apply to measurements of 5 m (16 ft) or more to a reflector sheet and 10 m (33 ft) or more
to a mini or standard prism. For measurements at shorter distances than these, the precision is ± 5 mm.
Method Liquid-electric detection
Compensation range ±3'
Reading system Photoelectric incremental encoder
NPL-352 Diametrical reading on HA
Single reading on VA
NPL-332 Single reading on HA/VA
Circle diameter (reading) 88 mm (3.46 in.) (79 mm (3.11 in.))
Minimum display increment
360° 1''/5''/10''
400G 0.2 mgon/1 mgon/2 mgon
MIL6400 0.005 MIL/0.02 MIL/0.05 MIL
DIN18723 accuracy NPL-362: 3''/1.0 mgon
NPL-352/332: 5''/1.5 mgon
Precise mode
Prism ± (3 + 2 ppm × D) mm* (–10 °C to +40 °C)
± (3 + 3 ppm × D) mm* (–20 °C to –10 °C), (+40 °C to
+50 °C)
Reflectorless ± (5 + 2 ppm × D) mm (–10 °C to +40 °C)
± (5 + 3 ppm × D) mm (–20 °C to –10 °C), (+40 °C to
+50 °C)
Normal mode
Prism ± (10 + 5 ppm × D) mm
Reflectorless ± (10 + 5 ppm × D) mm
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