Mid-West Model 220 Installation And Maintenance Instruction Download | Manualshive

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Installation & Maintenance Instructions

Model 220

Hazardous Locations Division Classified
Electrical Configurations: A,B, J, & K

Reading Office

Cutbush Park, Danehill, Lower Earley,
Reading, Berkshire. RG6 4UT. UK.
Tel: +44 (0)118 9311188
Email: [email protected]

Aberdeen Office

Unit 6 Airside Business Park, Kirkhill Industrial Estate,
Dyce, Aberdeen. AB21 0GT. UK.
Tel: +44 (0)1224 725999
Email: [email protected]

Internet: www.able.co.uk
e-procurement: www.247able.com
Registered in England No: 01851002
VAT No: GB 417 2481 61

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Summary of Contents for Model 220

Page 1: ...Park Danehill Lower Earley Reading Berkshire RG6 4UT UK Tel 44 0 118 9311188 Email info able co uk Aberdeen Office Unit 6 Airside Business Park Kirkhill Industrial Estate Dyce Aberdeen AB21 0GT UK Tel 44 0 1224 725999 Email ab able co uk Internet www able co uk e procurement www 247able com Registered in England No 01851002 VAT No GB 417 2481 61 ...

Page 2: ...integrity of the flame proof enclosure is dependent upon this metal to metal seal If cover bolts are lost or damaged they SHALL be purchased from Mid West Instrument for replacement The bolts are non standard and have been designed specifically for the referenced Hazardous Locations in this document Clean Metal joint area with non abrasive cloth after any maintenance activity that requires the cov...

Page 3: ...able suitable for the specified temperature class Maximum internal cable entry temperature rise is 15 ºC Cabling to be suitable WARNING Electrical connection shall be made with a cable entry or stopping box certified for use for the desired hazardous location certified for condition of use and correctly installed The cable entry device and any thread adaptor shall be suitable for the equipment the...

Page 4: ...COM 7 NO 6 NC RAE 1 SPST NO 1 2 No Connection RAF 1 SPST NC 1 3 No Connection SAE 2 SPST NO 1 2 8 7 SAF 2 SPST NC 1 3 8 6 SAG 2 SPST 1 NO 1NC 1 3 NC 8 7 NO Table II Chassis connection is to position 12 or 13 Customer Interface for the Reed Switch Output Option will be via connections 1 through 8 and connections 12 or 13 Do not loosen the connections at positions 9 10 11 14 15 or 16 All switch type...

Page 5: ...stem that the switch could be installed in a location outside of the Hazardous Locations marking identified on the ratings plates s Relay Output Interface Electrical Specification Input Option B through H identifies that your unit will need input power to operate the relay output output option R Depending on the electrical configuration specified on the order R or S your unit will be equipped with...

Page 6: ...oper voltage to the unit if you ordered the power relay unit The reed switch output units do not require power B Check that you are wiring to the correct Interface terminals C Check the reed switch interfaces to the terminal board for loose connections For the power relay the reed switch es connect to the terminal strip on the underside of the PCB For the reed switch outputs the reed switch es con...

Page 7: ...Other options Viton is a Registered Trademark of DuPont Dow Elastomers 7 ELECTRICAL CONFIGURATIONS Select One Switch Adjustable Range 10 90 except where stated below T6 Temperature Class unless specified otherwise A One Control Switch in NEMA4X Enclosure 1 6 8 B Two 2 Control Switches in NEMA4X Enclosure 1 6 7 8 J One 1 Control Switch in NEMA7 Exp Proof Encl 2 K Two 2 Control Switches in NEMA7 Exp...

Page 8: ...l internal volumes result in Mid West Instrument products falling below category I for non hazardous gases hazardous liquids and non hazardous liquids They also fall below category I for hazardous gases at or below pressures of 200 bar Per article 3 paragraph 3 these products shall not bear the CE marking and shall be designed and manufactured with sound engineering practice Our sound engineering ...

Page 9: ...Options A through H a seal is not required This configuration can also be classified as a Simple Apparatus for use in an Intrinsically Safe System For Electrical Specification Input options B through H in combination with Output option R a seal is required within 18 of the enclosure Please refer to National Electrical Code requirements Caution Do not scratch nick or dent mating surfaces of the gau...

Page 10: ...ur unit is equipped with Hermetically Sealed Reed switches The A option matched with Output Options A E F G H identifies the output capability of your unit Depending on the electrical configuration specified on the order A B J or K your unit will be equipped with 1 or 2 independently adjustable reed switches Interface to the 16 position terminal strip shown in Figure 1 is defined in Table II Termi...

Page 11: ...rface Electrical Specification Input Option B through H identifies that your unit will need input power to operate the relay output output option R Depending on the electrical configuration specified on the order A B J or K your unit will be equipped with 1 DPDT relay output or 2 independently adjustable SPDT relay outputs Table I identifies the load ratings and the adjustability range of the outp...

Page 12: ...ible for wire ranges from 12 22 AWG 3 3 32 mm2 Optionally each connection can be field wired with multiple wires connected to one contact You may connect two 2 22 16 AWG 0 33 1 3 mm 2 wires into one connection Recommended screw torque is 6 in lbs 0 113 newton meter to tighten the terminal strip screw Each Assembly is provided with strain relief clamps Use these clamps to provide strain relief when...

Page 13: ...Tag with S S Screw Y S S End Fittings with Al Body Material Option A Z Special Uncoded Options NOTE Not all options available in combination with Other options Viton is a Registered Trademark of DuPont Dow Elastomers Teflon is a Registered Trademark of DuPont 7 ELECTRICAL CONFIGURATIONS Select One Switch Adjustable Range 10 90 except where stated below T6 Temperature Class unless specified otherwi...

Page 14: ...ries differential pressure gauges either conform to and or are designed to the requirements of the following standards ASME B1 20 1 UL Std No 50 508 698 and 1203 ASME B40 1 NEMA Std No 250 CSA C22 2 No 14 25 and 30 SAE J514 Warning The suitability of the application and installation of this differential pressure switch is the responsibility of the end user The applicable certifications listings ap...

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