Cameron Scanner 2000 microEFM, Руководство пользователя по оборудованию

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A-3
Scanner
®
2000 microEFM Appendix A
dates will appear on the LCD. The log display will remain in view for 30 seconds before the LCD resumes its
automatic scroll of display parameters.
RTD Assemblies
Weatherproof RTD Assembly (CSA, Class I, Div. 2)
Cameron’s weatherproof RTD is CSA-certified for use in Class I, Div. 2 hazardous area installations. This
4-wire, 100-ohm RTD assembly has a standard 6-in. adjustable probe and can be ordered with cable lengths of
5, 10, 20, or 30 ft. It is fitted with two 1/2-in. MNPT strain reliefs and a 1/2-in. × 3/4-in. reducer for adapting
to various size conduit openings and threadolets. For wiring instructions, see Figure 3.5, page 66 . For part
numbers, see Table 6.1—Scanner 2000 microEFM Spare Parts, page 83.
Explosion-Proof RTD Assembly (CSA, Class I, Div. 1)
The Barton Model 21 RTD, shown in Figure A.6 is a 4-wire, 100-ohm weatherproof and explosion-proof RTD
assembly that can be connected to the Scanner 2000 enclosure without conduit in a Class I, Div. 1 installation.
Factory-sealed, armored leads are covered in PVC. The RTD assembly can be ordered with tech cable lengths
of 5, 10, 30, or 50 ft, and is available with a 6-in. or 12-in. RTD probe. Cable length and probe length are
specified in the model part number: 9A-21-XX-YY where XX is the cable length and YY is the probe length.
The Model 21 RTD is CSA-certified for use in Class I, Groups B, C, and D; Class II, Groups E, F and G; and
Class III hazardous area environments.
Each RTD assembly is fitted with 1/2-in. and 3/4-in. connectors for adapting to various size conduit openings
and threadolets. The RTD is field-adjustable for insertion lengths of up to 12 in. For wiring instructions, see
Figure 3.5, page 66 . For part numbers, see Table 6.3—RTD and Cable Assemblies (CSA-Approved), page
85.
Probe length
Cable length
Figure A.6—Explosion-proof (Div. 1) RTD assembly
Flameproof RTD Assembly (ATEX, Zone 1)
Cameron offers a flameproof RTD that is ATEX-certified for use in Zone 1 installations. The 4-wire, Class A
sensor is encapsulated in a stainless steel sheath long enough to accommodate line sizes from 2 to 12 inches.
It is attached to a 3500-mm armoured cable. For wiring instructions, see Figure 3.5, page 66 . For part numbers,
see Table 6.2—Scanner 2000 microEFM Spare Parts (ATEX-Approved), page 84.