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PRODUCT BULLETIN

Precision Tilting

Prism Assemblies

High-Quality Precision

Prism Assemblies for Long

Term Monitoring

Features & BeNeFIts

` Silver-coated prism canister

` 42 mm precision prism

` Holder is constructed of aluminum

` Prism can pivot vertically and

rotate with the plug-in pin

` Measuring point is always at center

` Available with prism constant of

-30 mm, -34 mm, and -35 mm

applIcatIoNs

` Mining, tunneling, monitoring and

rail

Part No. tiltiNg axis height tiP tyPe Weighs

4 520 001 40 mm 10 mm Stud 0.44 lb (0.20 kg)

4 520 002 70 mm Swiss-Style Quick-Release 0.66 lb (0.30 kg)

www.surveying.com

4 520 001

4 520 002

Contact your local SECO dealer today!

Summary of content (3 pages)

PAGE 1
PRODUCT BULLETIN Features & BENEFITS ``Silver-coated ``42 prism canister mm precision prism ``Holder is constructed of aluminum ``Prism can pivot vertically and rotate with the plug-in pin ``Measuring point is always at center High-Quality Precision Prism Assemblies for Long Term Monitoring Precision Tilting Prism Assemblies ``Available with prism constant of -30 mm, -34 mm, and -35 mm Applications ``Mining, tunneling, monitoring and rail 4 520 002 4 520 001 www.surveying.
PAGE 2
PRODUCT BULLETIN ``Special prism for simple and robust assembly ``Precision mini prism holder constructed of aluminum ``25 mm diameter prism ``Prism constant is -17 mm ``Tilting axis height 30 mm ``10 mm stud type ``Weighs 0.22 lb (0.10 kg) 4 520 200 — 25 mm Prism for Building Monitoring 4 520 020 — Mini 25 mm Diameter Prism Tilting Holder ``Prisms with a 12.5 mm diameter in a wedge-shaped aluminum ``Prism center is located in center of the ball ``50 mm diameter ``25 mm prism ``Weighs 0.75 lb (0.
PAGE 3
PRODUCT BULLETIN ``Track rod remeasures the track axis ``Can be accurately measured over the track center ``The holder for the prism mounted in the track axis and is rotatable ``When using the prism in the tilt holder of the measuring point is 100 mm perpendicular to the track axis ``Insulation prevents electrical shorting between the two rails ``The stop on the opposite end ensures a clean application to the rail inner edge ``The attack pushes exactly on the reference height of 14 mm below the top of rail