Levelling Staffs and Accessories
NA Automatic Levels
The levelling staff carries the reading, and its graduation and material stability set the limit for the accuracy that can be reached. The range covers telescopic staffs for site work and invar staffs with centimetre graduation for precise levelling with the NA2 and NAK2. The matching accessories belong here as well: parallel plate micrometer, interchangeable and autocollimation eyepieces, struts for supporting long staffs, illumination with battery box and wooden transport cases. Selection follows length, graduation, material and design as telescopic or folding staff.
| Item | Type | Feature |
|---|---|---|
| CLR104 | telescopic staff | 5 m, 5 sections, 1.2 m transport length |
| GPLE2N | invar staff | 2 m, centimetre graduation, for precise levelling |
| GPM3 | parallel plate micrometer | 10 mm range, reading to 0.1 mm, for NA2 and NAK2 |
| FOK73 | interchangeable eyepiece | 40x magnification for NA2 and NAK2 |
| GOA2 | autocollimation eyepiece | bayonet coupling, with GEB62 plug in lamp and GEB63 battery box |
| GSL3 | pair of struts | support for the 3 m invar staffs GPCL3 and GPLE3N |
Typical applications: Readings during site levelling with the telescopic staff, precise levelling and settlement monitoring with invar staff and parallel plate micrometer. The eyepieces and the illumination extend the NA2 and NAK2 for adjustment work and for measurements in poor light.
