Small-size in­frared tem­per­a­ture sen­sor for in­dus­trial equip­ment

DEMM Engineering & Manufacturing - - PRODUCT WATCH -

THE NEW RS Pro low- cost and high-per­for­mance in­frared tem­per­a­ture sen­sor is now avail­able at what the man­u­fac­turer says is a highly at­trac­tive price. Key fea­tures in­clude its ex­tremely small size – 31mm di­am­e­ter by only 30mm high – and side- en­try ca­ble, mak­ing it ideal for mount­ing in ar­eas were space is lim­ited. Other fea­tures in­clude fast 125ms re­sponse time, built-in tem­per­a­ture dis­play and con­trols.

RS says the de­vice is es­sen­tially a non- contact ther­mome­ter that is de­signed to mea­sure tem­per­a­ture from a dis­tance. In­frared ther­mome­ters are typ­i­cally used for a wide va­ri­ety of tem­per­a­ture mon­i­tor­ing func­tions, pri­mar­ily in ap­pli­ca­tions where contact sen­sors are un­suit­able, such as when the tar­get ob­ject is mov­ing or in­ac­ces­si­ble, or when a fast re­sponse time is re­quired. Use of the sen­sor’s ana­logue volt­age out­put en­ables the set­ting of alarms, or con­nec­tion to a data log­ger for qual­ity check­ing.

Al­though the new unit is sim­i­lar in op­er­a­tion to hand­held tem­per­a­ture mea­sure­ment guns, the RS Pro de­vice is in­tended as a per­ma­nent mea­sure­ment unit for fixed mount­ing via a bracket, for ex­am­ple to in­stall on man­u­fac­tur­ing ma­chin­ery to mea­sure product tem­per­a­ture, or to mon­i­tor the con­di­tion of ma­chine parts. Key in­dus­trial ap­pli­ca­tion ex­am­ples in­clude: product tem­per­a­ture mea­sure­ment in pa­per and card­board man­u­fac­tur­ing; food man­u­fac­tur­ing; phar­ma­ceu­ti­cals; ther­mo­form­ing; cur­ing and dry­ing; as well as con­di­tion mon­i­tor­ing on me­chan­i­cal or elec­tri­cal equip­ment.

The unit fea­tures two si­mul­ta­ne­ous and con­fig­urable out­puts: selectable volt­a­ge­out­put ranges from 0 to 5V, 1 to 5V or 0 to 10V DC, prov­ing a lin­ear volt­age out­put with mea­sured tem­per­a­ture; and an open col­lec­tor alarm out­put for tem­per­a­ture thresh­old and hys­tere­sis. Other fea­tures of the sen­sor in­clude tem­per­a­ture mea­sure­ment from 0 to +1000°C; ac­cu­racy of ±1.5 per­cent of read­ing or ±1.5°C; IP65 pro­tec­tion, and op­er­a­tion over the am­bi­ent tem­per­a­ture range from

0 to +70°C.

Elec­tri­cal char­ac­ter­is­tics in­clude: op­er­at­ing sup­ply volt­age from 28V down to 6V DC, or 12V DC if the out­put is set to 0 to 10V, and a max­i­mum cur­rent draw of 30mA. The unit also meets in­dus­trial EMC stan­dards, in­clud­ing EN61326-1 and EN61326-2-3 for use in elec­tri­cal equip­ment for mea­sure­ment, con­trol and lab­o­ra­tory ap­pli­ca­tions.

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