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Eaton MTL7700 Instruction Manual

Manual is about: CROUSE-HINDS Series, Shunt-diode safety barriers

Summary of MTL7700

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    Mtl7700 range shunt-diode safety barriers september 2017 inm 7700 rev 12 instruction manual mtl intrinsic safety solutions.

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    Ii inm 7700 rev 12 declaration of conformity a printed version of the declaration of conformity has been provided separately within the original shipment of goods. However, you can find a copy of the latest version at http://www.Mtl-inst.Com/certificates note the following mtl7700 range of shunt dio...

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    Iii inm 7700 rev 12 declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ii note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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    Iv inm 7700 rev 12 iv atex safety instructions the following information is in accordance with the essential health and safety requirements (annex ii) of the eu directive 2014/34/eu [the atex directive - safety of apparatus] and is provided for those locations where the atex directive is applicable....

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    1 inm 7700 rev 12 mtl7700 range shunt-diode safety barriers figure 1: mtl7700 range of shunt-diode safety barriers 1 overview this instruction manual contains all information needed to install, maintain, fault-find and test mtl7700 range of shunt-diode safety barriers. Section 3 includes a checklist...

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    2 inm 7700 rev 12 2 .3 mtl7700 range – accessories mtl7700 range of barriers mount directly onto din-rail. A comprehensive selection of mounting, tagging, power and earthing accessories is available. Installation details are given in section 4.3. Essential accessories the following are usually consi...

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    3 inm 7700 rev 12 figure 3: mtl7700 range of earthing accessories note: module earth terminals may be used for cable screen earth connections. See figure 17 erb57o nickel-plated offset earth-rail bracket, supplied with two push fasteners, one 14mm earth-rail clamp and one 9mm earth clamp 2 . Erl7 ni...

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    4 inm 7700 rev 12 figure 4: dimensions (mm) of an mtl7700 range of barrier tagging accessories section 4 .3 .5, 4 .3 .6 power links section 4 .3 .7, 4 .3 .8 4 .3 .1 din-rail (thr2 and thr7000) eaton can supply both standard (thr2) and plated (thr7000) low- profile t-section din-rail. Although standa...

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    5 inm 7700 rev 12 figure 5: clearance for accessories note : for high profile (15mm) din rail, add 7.5mm to vertical dimension 1 2 3 1 2 figure 6: clamping an mtl7700 range of barrier on to a din-rail figure 7: removing an mtl7700 range of barrier from a din-rail 250mm low-profile rail (7.5mm) high-...

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    6 inm 7700 rev 12 high - profile din rail or low - profile din rail 2 off m4 x 16 m6 x 16 50mm 62mm 14.6mm 20mm figure 9: mounting isp7000 insulating spacers etl7000 earth terminal clamping screw earth terminal screws figure 10: mounting an etl7000 din-rail earth terminal figure 11: installing a th7...

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    7 inm 7700 rev 12 5 wiring connections 5 .1 general this section describes wiring connections as follows: a) barrier connections section 5.2 b) connections to plant earth section 5.3 c) connections to dummy barriers section 5.4 5 .2 barrier connections each barrier has 4 or 8 terminals, 2 or 4 on ea...

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    8 inm 7700 rev 12 5 .3 .2 earthing an installation see figure 15. Connections from the din-rail to a suitable plant earth are made from etl7000 earth terminals. These clip onto the din-rail as described in section 4.3.3 to make the vital earth connection with the rail and the barriers. They are prov...

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    9 inm 7700 rev 12 5 .3 .5 bonding practice when hazardous-area equipment cannot meet prescribed insulation standards where hazardous-area equipment is connected to earth (either directly or indirectly) and/or it will not withstand a 500v insulation test to ground or the alternative described in sect...

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    10 inm 7700 rev 12 check that: a) barriers are of the types and polarities specified in the safety documentation. B) the barriers are attached securely and correctly to the din-rail to make sure the earth connection is safe. C) there are no apparent signs of damage or corrosion to the barriers, the ...

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    11 inm 7700 rev 12 7 .2 power supply check check that the power supply to an individual barrier circuit (or to an mtl7798 power feed module or an mtl7799 dummy barrier sourcing the power bus ) is functional and that the voltage across the supply with respect to earth is correct. For example, in figu...

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    12 inm 7700 rev 12 12 8 .2 .2 multimeter tests see tables 4 to 10. The use of a digital multimeter for testing barriers is described in section 7. The tables assume that the multimeter is set to a suitable Ω range for the end-to-end resistance tests (except for diode return channels) and for the con...

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    13 inm 7700 rev 12 input output line fault open circuit open closed short circuit closed closed 620Ω closed open 10kΩ open open 8 .3 .3 .2 testing mtl7742 barriers the mtl7742 is a single channel switch/prox input barrier with an open collector solid state interface to the safe area equipment. To ve...

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    14 inm 7700 rev 12 8 .4 test tables for passive barriers tables 4 to 10 detail the tests for all mtl7700 range of ‘passive’ barriers. In the ‘diode test’ columns, the figures adjacent to the diode description indicate the number of forward-biased diodes used in the barrier chain. Using the multimete...

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    15 inm 7700 rev 12 table 6: single channel table 7: dual-channel ac barriers table 9: dual-channel star-connected ac barriers table 8: 2/3 channel low voltage ac barriers note: vf d is the voltage dropped by a forward biased rectifier diode - 0.6v typically barrier data multimeter tests constant-cur...

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    16 inm 7700 rev 12 table 10: diode return barriers note: vf z is the voltage dropped by a forward biased zener diode - 0.6v typically barrier data multimeter tests constant-current tests model no . Safety description end-to-end resistance Ω diode test +ve diode test -ve terminal voltage @ 10µa termi...

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    17 inm 7700 rev 12 appendix a: typical wiring connections for specific applications . Hazardous area hazardous area figure a1: 2- wire transmitters hazardous area figure a5: 2-channel switch inputs hazardous area figure a6: low-level analogue inputs (rtd’s) figure a2: 2- wire transmitters with 250Ω ...

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    18 inm 7700 rev 12 hazardous area safe area 3 4 1 2 mtl7728+ 3 4 1 2 mtl7787+ mtl7787p+ 3 4 1 2 mtl7787+ mtl7787p+ figure a9: analogue output hazardous area safe area 3 4 1 2 +7v 3 4 1 2 mtl7761ac mtl7764ac 3 4 1 2 mtl7761ac --7v 0v output (mv) sense + — figure a13: strain-gauge bridges hazardous ar...

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    19 inm 7700 rev 12 model no . V Ω ma mtl7706+ 28 300 93 mtl7707+ 28 300 93 28 - mtl7707p+ 28 164 171 28 - mtl7710+/- 10 50 200 mtl7715+ 15 100 150 mtl7715p+ 15 50 291 mtl7722+/- 22 150 147 mtl7728+ 28 300 93 mtl7728– 28 300 93 mtl7728ac 28 300 93 mtl7728p+ 28 234 119 mtl7729p+ 28 164 170 mtl774x 10 ...

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    Europe (emea): +44 (0)1582 723633 mtlenquiry@eaton.Com the americas: +1 800 835 7075 mtl-us-info@eaton.Com asia-pacific: +65 6 645 9888 sales.Mtlsing@eaton.Com the given data is only intended as a product description and should not be regarded as a legal warranty of properties or guarantee. In the i...