cthot LT0 pages

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-^optris

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opt ris® Ctex

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optris® CT for the use in hazardous areas

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Scope of supply

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- CTLT - Sensor (optics 2:1, 15:1, 22:1) with cable length

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3 m, 8 m or 15 m (selectable)

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- aluminum housing with mounting appliance for two zener

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barriers and CT electronics

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- 2 zener barriers, type 9002/22-032-300-111 (R. STAHL

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AG)1)

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FEATURES

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Cost saving solution by simple concept

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Sensing head as simple electrical device enables

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installations in hazardous locations without problems

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Energy limitation with appropriate zener barriers

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(STAHL) with approval for zone 1 (PTB 01 ATEX 2053/

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E II (1/2) GD [EExia/ib] IIC/IIB)

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Concept

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- optris® CT sensing heads are defined as simple electrical

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devices (according to EN 50014)

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- no special approval for intrinsic safety necessary

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- optris® CT gets intrinsically safe by limitation of the energy

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with two double zener barriers, type 9002/22-032-300-111

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(R. STAHL AG)11

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"NOTE: The functionality and correct reading of the CT sensor

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can only be guaranteed, if the recommended barriers are used

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Connection diagram

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hazardous area

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R2

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C1 C2

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TP+ (yellow)

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TP- (green)

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PT1000 (white)

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PT1000 (brown)

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shield

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1-----------J shielded cable

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type FEP TD 833CF, ma. 15m

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Sensing head: "simple electrical device"

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(according to EN 50014)

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sate area

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housing CA-215

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aluminum

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¿ / PA

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mounting

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rail

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9002/22-032-300-111

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_zener barrier_

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9002/22-032-300-111

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zener barrier

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A / PA §rl PA

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1" p		TP+ (yellow)
		TP- (green)
		PT1000 (white)
		PT1000 (brown)

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The PA-terminals of the barriers must be grounded,

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shield

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Optris CT

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electronics

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