7/25/2019 114 Using Electrical Meters -JOB PROCEDURE

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MASTSafe Work Procedure

Division: Analysis By: Date:

Department: Supervisor: Frequency:

Job Title: Approved By: JSA Number:

Job Title: 114 Using Electrical Meters Job Performed By:

REQUIRED PERSOA! PROTE"TI#E EQUIPMET$ Safety glasses rubber gloves !if "ands are #et or damp$ meters and test leads#"ic" are in good condition%

%EERA! OTES$ &a'e sure t"at you "ave been trained on t"e proper use of meters before you attempt to use one% T"is analysis isnot meant to replace a course on meter usage% Al#ays 'eep in mind t"at po#er can "ave more t"an one source and capacitors can store

large amounts of voltage% (old t"e test leads as far bac' from t"e metal tips as possible and never test #"ile you)re #et or in #ater%

&O' SA(ET) AA!)SIS$

Ste* Descri*tion +a,ard "ontrols

* +sing a multimeter to c"ec'resistance of a #ire ordevice

&eter could blo# an internal fuse orbe damaged beyond repairdepending on "o# "ig" t"e voltage#as%

,ear safety glasses% &eter "as a built in po#er source #"ic"it uses for c"ec'ing for resistance% Al#ays be certain toc"ec' only dead circuits% -apacitor #arning%

. +sing a multimeter to c"ec'amperage

&eter could be damaged or testleads could be ruined and internal

fuse could be blo#% Fire or in/urycould result%

,ear safety glasses% &ultimeters "ave a pair of connectorst"at are designed to allo# up to ten amps to 0o# safely

t"roug" t"e meter in a series connection #it" t"e load% T"eload must not e1ceed t"e voltage or amperage limits of t"emeter%

2 +sing a multimeter fortesting A%-% or D%-% voltage%T"e display #ill indicate#"ic" type of voltage youare touc"ing #it" t"e leads%

&eter could e1plode causing in/uryor blindness% -"ance ofelectrocution if voltage got past t"eleads to your body%

,ear safety glasses% T"e s#itc" position must be set for t"e"ig"est scale possible and t"en moved do#n to suit if t"evoltage is un'no#n to avoid a 0as"% 3f possible use only one"and to "old t"e test lead and "ave t"e ot"er lead clampedor pinned to t"e ot"er side of potential po#er or ground%T"is #ill prevent t"e c"ance of stray po#er 0o#ing t"roug"your "eart%

Page * of . Print Date: Jan4.54.667

7/25/2019 114 Using Electrical Meters -JOB PROCEDURE

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8 +sing a clamp9on ammeterto c"ec' amps

T"e meter could clamp onto a bare#ire or insulation or be pinc"ed oto cause a s"ort circuit and 0as"%Flas" could "ave severe resultssuc" as ;re or in/ury includingdeat"%

,ear safety glasses% A clamp on meter is usually appliedaround a cable% ,"en #iggling a cable to clamp t"e meterbe a#are t"at copper #ire loses its grip in a connector aftertime and t"e cable could pull out and s"ort circuit% Al#aysuse t"e "ig"est scale and never use on a voltage or currentt"at e1ceeds t"e meters safety ratings%

5 +sing a pigtail voltmeter toc"ec' voltage

&eter could e1plode causing in/ury%Po#er could travel from t"e meter to

cause electric s"oc' burn or deat"%

,ear safety glasses% T"e meter doesn)t "ave a setting butyou s"ould never e1ceed t"e meters safe rated voltage% T"e

one "and met"od for testing is t"e safest%< +sing a plug tester #it"

polarity c"ec'=lectric s"oc' burn or deat" T"e plug t"at you test #ill "ave t"e po#er turned on so you

must determine t"at t"e unit is solid and secure% 3f t"e plug#ere to fall to pieces as you tested it you could be "urt%

> +sing a neon voltage testlig"t

=lectric s"oc' burn or deat" T"e neon test lig"t is an e1tremely lo# cost met"od ofc"ec'ing for voltage but it usually doesn)t indicate t"eamount%

AUT+ORI-ED EMP!O)EE I(ORMATIO$

ID UM'ER$ !AST AME$ (IRST AME$ REMAR.S$

&O' +ISTOR) I(ORMATIO$

DATE$ REMAR.S$

Approval Signature: Date:

Page . of . Print Date: Jan4.54.667