Figure 3-4 Mains Power Supply - Honeywell 7866 Operation And Maintenance Manual

Installation
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AC/DC AC/DC
Line Line
Voltage Voltage
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PROTECTIVE BONDING (grounding) of this controller and the enclosure in which it is PROTECTIVE BONDING (grounding) of this controller and the enclosure in which it is
installed, shall be in accordance with National and local electrical codes. To minimize installed, shall be in accordance with National and local electrical codes. To minimize
electrical noise and transients that may adversely affect the system, supplementary electrical noise and transients that may adversely affect the system, supplementary
bonding of the controller enclosure to local ground using a No. 12 (4 mm bonding of the controller enclosure to local ground using a No. 12 (4 mm
conductor is recommended. Before powering the controller, see "Prelimnary Checks" in conductor is recommended. Before powering the controller, see "Prelimnary Checks" in
this section of the Product Manual. this section of the Product Manual.
2 2 It is the user's responsibility to provide a switch and non -time delay (North America), It is the user's responsibility to provide a switch and non -time delay (North America),
quick-acting, high breaking capacity, Type F (Europe), 1/2A, 250V fuse(s), or circuit - quick-acting, high breaking capacity, Type F (Europe), 1/2A, 250V fuse(s), or circuit -
breaker for 90-264 Vac applications; or 2 A, 125 V fuse or circuit breaker for 2 4 Vac/dc breaker for 90-264 Vac applications; or 2 A, 125 V fuse or circuit breaker for 2 4 Vac/dc
applications, as part of the installation. applications, as part of the installation.
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28 7866 Triple Range Digital H
Earth Earth
1 1
Ground Ground
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Hot Hot
Neutral Neutral
Applying 90-264 Vac to an instrument rated for 24 Vac/dc will severely Applying 90-264 Vac to an instrument rated for 24 Vac/dc will severely
damage the instrument and is a fire and smoke hazard. damage the instrument and is a fire and smoke hazard.

Figure 3-4 Mains Power Supply

and CO
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Analyzer/Indicator - Operation and Maintenance
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) copper ) copper
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