Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco

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Section 3 Scanner ® 2000 microEFM Grounding Procedures To power the Scanner 2000 microEFM with an external DC supply, route the ground conductor through a conduit opening in the top of the Scanner 2000 enclosure with the power conductors and connect it to the ground screw inside the enclosure (note the round sticker that marks this location in Figure 3.1). If national or local electrical codes require the enclosure to be grounded, a protective earth grounding conductor may be required. To install a protective earth ground, connect an earth ground conductor to the stainless ground lug near the top of the Scanner 2000 enclosure (also shown in Figure 3.1) or to the internal ground screw, and connect the other end to a ground rod or other suitable system earth ground. The ground lugs will accept wire sizes from 14 AWG solid conductor to 4 AWG stranded conductor. Figure 3.1—Ground screw locations 60 Internal ground screw External ground screw
Scanner ® 2000 microEFM Section 3 Power Supply Wiring Internal Power Supply The Scanner 2000 microEFM is shipped with a lithium battery pack. To supply power to the instrument, connect the battery cable to connector J1 on the main circuit assembly (Figure 3.2). Low-power microprocessor technology enables the Scanner 2000 to operate for an estimated 1 year on a lithium battery pack. The lithium battery pack is ideal for use in extreme temperatures, although extreme cold temperatures may reduce battery life. To maximize battery life, • operate the Scanner using the following default configuration settings: – calculation frequency: 1 minute – logging frequency (interval): 1 hour – download frequency: monthly • disconnect the Scanner 2000 from the RS-232 to RS-485 converter when ModWorX Pro software is not in use. When ModWorX Pro is running, the computer powers the converter; when the software is not running, the Scanner 2000 powers the converter, causing a current drain to the Scanner battery. • avoid the following conditions/activities: – operation at extremely cold temperatures – use of digital output (pulse or alarm) – use of analog input without external power (when expansion board is installed) 1 7 2 8 3 4 SCANNER 2000 Main Circuit Board PN: 9A-30160010 9 10 5 11 6 12 J2 TB1 TB2 RTD I+ R+ R- I- – TFM 1 + SWITCH DIG OUT 1 Figure 3.2—Lithium battery pack connection 13 14 TB3 BATTERY J1 POWER PORT 2 PORT 1 + – + – + – 61
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Table of Contents Scanner ® 2000 m
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Table of Contents Scanner ® 2000 m
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Section 1 Scanner ® 2000 microEFM
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Appendix C Scanner ® 2000 microEFM
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Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco

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