6. Electrical connections
Prior to installation refer to the transmitter control drawing 3000E3160 and remote sensor control drawing
3000E3157 shown in section 21.
Warnings
Series 3000 MkII is designed for installation and use in Zone 1 or 2 or 21 or 22 hazardous
areas in Europe and Class I Division 1 or 2 and Class II Division 1 or 2 area applications in
North America.
Installation must be in accordance with the recognized standards of the appropriate
authority in the country concerned.
Use copper wiring only.
Access to the interior of the detector, when carrying out any work, must only be
conducted by trained personnel.
Before carrying out any work ensure local regulations and site procedures are
followed. Appropriate standards must be followed to maintain the overall
certication of the detector.
To reduce risk of ignition of hazardous atmospheres, conduit runs must have a seal
tting connected within 18 inches of the enclosure.
To reduce the risk of ignition of hazardous atmosphere, de-classify the area or
disconnect the equipment from the supply circuit before opening the detector
enclosure. Keep assembly tightly closed during operation.
Never attempt to open a junction box / enclosure in potentially hazardous
atmospheres.
The detector must be earthed / grounded for electrical safety and to limit the effects
of radio frequency interference. An earth / ground point is provided inside and
outside the unit. The internal grounding shall be used as the primary equipment
ground. The external terminal is only a supplemental bonding connection where
local authorities permit or require such a connection.
Take care when handling sensors as they may contain corrosive solutions.
Do not tamper or in any way disassemble the sensor.
Do not expose to temperatures outside the recommended range.
Do not expose sensor to organic solvents or ammable liquids.
At the end of their working life, sensors must be disposed of in an environmentally
safe manner. Disposal should be according to local waste management
requirements and environmental legislation.
Alternatively, sensors may be securely packaged and returned to
Honeywell Analytics clearly marked for environmental disposal.
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