Appendix A. Specifications; Table 1 - Model 1900 Specifications - Geokon 1900 Instruction Manual

Magnetic extensometer
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APPENDIX A. SPECIFICATIONS

Temperature Range:
Probe Dimensions (L x ∅): 178
Probe Construction: Stainless Steel and Delrin
Telescoping Section: 1 m (3.28 ft.)
Telescoping Section
Range of movement:
Plate Magnet Material: PVC
Plate Magnet Dimensions:
Spider Magnet Material: Body: PVC
Spider Magnet Dimensions:
Leaf Spring (Spider Leg) Stiffness: > 20N
Datum Magnet Material: PVC
Datum Magnet Dimensions: 54
Notes:
¹ Other ranges available on request
² Other sizes available
Cable Lengths: Metric Cable Lengths 30 m, 100 m, 150 m, 200 m
Standard cable lengths 100 ft., 125 ft., 200 ft., 300 ft.
Resolution: ±1 mm (±0.04")
Repeatability: ±3 mm (±0.12")
−30 to +80° C
1
-30 to 110° F
Access Tube: 33 mm (1.3") O.D. Sch. 80 PVC
Fully compressed: 460 mm (18.1")
300 mm
(11.8")
300 mm
(11.8"
(L
W
D)
Legs: Hardened 17-7 SS
Closed: 445
Released: 445
(L
O.D.
I.D.)
Borehole Size:² 102-152 mm (4-6")
Power: 9V Alkaline Battery

Table 1 - Model 1900 Specifications

19 mm (7"
0.75")
300 mm
9.5 mm
11.8"
0.37")
70
34 mm (17.5"
203
34 mm (17.5"
60
34 mm (2.13"
2.75"
1.34")
8"
1.34")
2.36"
1.34")
7

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