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Ceramic Band Heater Check List: •The surface where a heater willbe mounted must be clean and the heater maintained free of all contaminants that might cause a short circuit in the heater (typically conductive liquids).•To prevent overheating, Watlowrecommends installing an appro- priate temperature controller and checking the correct performance of the thermocouple.•Do not use in environmentscontaining combustible gases or vapors.•Keep all electrical connectionsproperly protected to avoid electrical hazards to machine operators.•Do not over tighten clamps to thepoint where serrated side folds begin to collapse. Ceramic band heaters utilize radiation heating and excessive force may breakceramic insulators.

W A T L O W

Plastics catalog - 7347 Barrel Heaters

Ceramic KnuckleBand

Options:Terminal box T/C bracket provides protection forelectrical connections in hazardous environments. Partial coverage helps heating oflarge pipes and covers large dia- meters with two or more sections. Dimensional drawings are required when ordering. •Dual voltage (factory approvalrequired)•Stainless steel sheath •Ground stud •Ground lead •Three-phase voltage (factoryapproval required) Ceramic terminal covers Other Options: provideeasy installation and protect electri- cal connections on each individual terminal.
Injection Molding 3 �
8 NPT necessary forinstrumentation. A dimensional drawing is required when ordering. Holes and notches necessary forinstrument access, etc. Heater must be 63.5 mm (2.5 in.) minimum width and 63.5 mm (2.5 in.) minimum I.D.; dimensional drawing required when ordering.
Barrel Heaters 17