The usage of an M12 coupler connector at the bond head of a thermometer, rather than standard cable outlet, enables quick and safe connection. In the hygienic, food and pharmaceutical industries such a design is also being demanded a lot more frequently.
Used, plant manufacturers prefer to rely on pre-assembled cables with fitted connectors, since this completely eliminates needing to fix the single strands into the thermometer head. Enough time required for assembly and for disassembly during calibration or when replacing the instrument can thus be reduced considerably. Constructive is that, in case of changing out any instrument, incorrect re-wiring can be avoided.
In general, additionally it is worth noting that, to guarantee the operational safety of plants and because of their maintenance and servicing, it really is imperative that equipment is simple to clean and that moisture protection reaches a maximum. These requirements apply for all process components, also beyond your process (in the ?splash zone?).
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WIKA has adapted the full-metal M12 coupler connector, familiar from the TR21 (TR21-A, TR21-B, TR21-C) products, to the cable outlet for thermometers with connection head and thus enabled a simple and reliable reference to a 4-pin M12 connection cable. Beaming -quality sealing idea of this connector has also shown in the extreme requirements of autoclavable sensors. In addition to the already established TR21 miniature resistance thermometers, which were designed for the high IP requirements of sanitary applications, WIKA now also offers thermometer products with connection heads ? models TR20, TR22 (TR22-A, TR22-B), TR25 ? with a hygienic M12 coupler connector for the hygienic, food and pharmaceutical industries.