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803-CL Length Reference Kit
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Configurable length reference bar for laser trackers
(English units) |
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Our 803-CL Kit provides a reference length for use during
laser tracker or scanner jobs.
Use it to establish system scale when using single measuring
instruments or when bundling multiple instruments together.
Or use it to verify system accuracy and stability during a
measurement job. Many of our customers shoot a length
reference bar at the beginning, middle, and end of a job to
gain confidence that nothing moved or changed during the
shoot.
The 803-CL consists of a kit of our Invar tubing and connectors, two
of our 1.5INV magnetic
SMR nests (for a 1.5" SMR), and four
15199 square support feet. SMRs
are not included with this kit. The Invar tubing
elements are individually NIST-traceable.
Invar is an excellent
material for this application due to its extreme stability
over a wide temperature range.
| Invar tubes |
12587 Series |
| Tube length tolerance |
±0.0001" |
| Total stackup error |
±0.0005" |
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803-CL Invar Kit Components |
Individual components may be assembled to produce lengths from 7" to
112", in 5" increments. The table below specifies all
included components.
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Picture legend |
Part number |
Description |
Quantity |
| A |
12587-G3 |
20" Invar tube |
4 |
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12587-G2 |
10" Invar tube |
2 |
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12587-G1 |
5" Invar tube |
2 |
| B |
1.5INV-1000 |
SMR holder |
2 |
| C |
15199 |
Clamp-on Foot |
4 |
| D |
12406-G1 |
Stainless steel Invar
system connectors |
10 |
| no photo |
12421-G1 |
Plastic case |
1 |
| n.a. |
n.a. |
NIST
traceable certification for kit |
yes |
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Approximate weight: kit and case, 17 lbs. (7.7 kg); shipping,
22 lbs. (10 kg)
Thermal expansion coefficient:
0.68 x 10−6 in./in.°F for temperature range of
0-200°F
(1.26�10−6 m/m/°C for temperature range of
−18°C to 93°C)
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Invar tubing: 1" (25.4 mm) diameter Invar with stainless
steel end caps, having 3/8" x 24 internal threads on each end.
Finish: Oil and stain resistant PVC jacket, red.
Case: Plastic case with foam insert |
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