2Pcs 2M Barcoded Invar Levelling Staff for Topcon DL101 or DL102 digital Level

Description

Attribute
：
Leosurvey high precision Invar levelling staffs are used for First-order and Second-order leveling. They can be used on large scale construction sites, for example roads, dams, tunnels, mines, power plants and building monitoring.
This item can be used for Topcon DL101 or DL102 Digital Level.
Item contains 2pcs (one pair) with aluminum case.
Features:
Staff tape is made of Invar material. The coefficient of thermal expansion is very small (1.0
×
10-6/
℃
/M)
Superior graduation accuracy and high quality image of stripes.
Body of the Invar staff made of rigid aluminum profile with anodized surface. It makes sure it is not easy to get deformed in the process of measurements and very convenient to carry.
Invar tape seated in a protection groove of staff profile and tensioned by soft spring to compensate extension coefficient of staff profile.
Foot plate of chrome-alloy; hardened, smooth and ground.
Equipped with two circular bubbles and fold-away handles. Handles zinced and powder-coated.
Technical Specification
Invar Tape Specification:
0.7×25mm
Levelling Body Straightness:
≤
4mm
Error of Every Meter:
≤
0.04mm
Random Graduation Errors
：
≤
2μm
Error of Zero Point:
≤
0.005mm
General Specification
Length:
2M
Type
: Barcode mark
Net Weight
：
7.5KG/ 1Pc
Gross Weight (With package):
24KG/2Pcs
Package Detail:
Inner Aluminum Case; Outer Carton Box
Carton Dimension:
17cm*17cm*210cm
Storage Temperature
:
-40°C~70°C
Working Temperature:
-20°C~50°C
Service Life
: 8-10 years
Bubble:
2 circular bubbles
Other Types Options:
1. 3M 5mm graduation mark Invar staff for optical levels
2. 2M 10mm graduation mark Invar staff for optical levels
3. 3M 10mm graduation mark Invar staff for optical levels
4. 2M or 3M Barcode Invar staff for digital levels like Leica, Sokkia, Topcon, Trimble, South, FOIF, GeoMax, ect.
Please contact with our service to inform your digital level model.
Delivery
Within 1-3 working days of delivery arrangement. All products will be arranged by Express ( To USA 3-5 working days by FedEx)
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