Instruction/ maintenance manual of the product 81079 Craftsman
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Owne r's Ma nua l True RM S M ultimete r with IR The rm ometer Mode l No. 81079 © Sears, R oebuck and Co., Hoff man Estates, IL 60179 U .S.A. www.
2 TABL E OF CON T ENTS Warranty Page 3 Safety I nstructions 4 Safety Sym bols 5 Control and Jacks 6 Symbols and Annunci ators 6 Specificatio ns 7 Battery I nstallation 10 Operating Instructions 11 DC .
3 ONE YEA R FUL L WARR ANT Y ONE YEAR FULL WARRANTY ON CR AFTSMAN PROFE SSIONAL TRUE RMS MULTIM ETER If this CRAFTSMAN Professional True RM S Multimeter fa il s to give complete satisfaction w ithin o.
4 SAFE TY INSTR UC TION S This meter has bee n designed for safe use, but must be o perated with cautio n. The rul es liste d below must be car efully fo llowed f or safe opera tion.
5 SAF ETY SYMB OL S This symbo l adjace nt to anot her symb ol, terminal or operatin g device indicates that the operator m ust refer to an expl anatio n in the Operating Instructions to avo id person al injury or damage to the m eter.
6 CONTR OL S A ND JA CK S 1. IR Thermo meter an d laser po inter 2. 4000 cou nt LCD disp lay 3. HOLD and Backlite button 4. SELECT b utton 5. Function switc h 6. mA, uA a nd A input jack s 7. COM in put jack 8. Positive inp ut jack 9. RANGE h old butto n 10.
7 SPEC IFICA TI ON S Function Range Resolution Accuracy 400mV 0.1mV ± (0.3% re ading + 2 digits) 4V 0.001V 40V 0.01V 400V 0.1V ± (0.5% re ading + 2 digits) DC Voltage 600V 1V ± (0.8% re ading + 3 digits) 50 to 400Hz 400Hz to 1kHz 400mV 0.1mV ± (1.
8 Function Range Resolution Accura cy 400 ! 0.1 ! ± (0.8% read ing + 4 d igits) 4k ! 0 .001k ! ± (0.8% readin g + 2 d igits) 40k ! 0. 01k ! 400k ! 0 .1k ! 4M ! 0 .001M ! ± (1.0% re ading + 2 digits) Resistanc e 40M ! 0.01M ! ± (3.0% re ading + 5 d igits) 40nF 0.
9 Diode Test Test curre nt of 0.3mA maxi mum, open circ uit voltage 1.5V DC ty pical Continuit y Check Audible s ignal will s ound if th e resistance is less t han 150 ! (approx.), t est curr ent <0.7mA Temperatur e Sensor Requires ty pe K th ermocouple IR Spectr al respons e 6 to 16 ! m IR Emissi vity 0.
10 BATT ER Y IN STALLA TI ON WARNING : To avo id electric s hock, disconnect the test leads from any so urce of v oltage before rem oving the battery cov er. 1. Di sconnect t he t est leads fr om the me ter. 2. Re move the rear b attery cov er by r emoving th e two screws using a Ph illips hea d screw driver.
1 1 OPERA TIN G IN STRUC TION S WARNING : Risk of electrocuti on. Hig h-voltage c ircuits, b oth AC and DC, ar e very da ngerous and sh ould be meas ured w ith great care. 1. ALWAYS t urn the fu nction sw itch to th e OFF posit ion whe n the meter is n ot in use .
12 AC VO LT AG E MEASURE MEN TS AC VOLTAG E: The probe tips may n ot be long e nough to contact t he live parts i nside so me 24 0V outlets for appliances because the contacts are recess ed de ep in the ou tlets. As a result, the reading may show 0 volts w hen the o utlet actu ally has voltage on it.
13 DC CURRENT MEASU REMEN TS CAUTION: Do not make curr ent me asurements on the 20A scale for longer tha n 30 seco nds. Exce eding 30 s econds may cause da mage to t he meter and/or t he test leads. 1. I nsert the black test lead b anana plug into the neg ative (CO M) jack.
14 AC CURRENT MEASU REMEN TS WARNING: To avo id electr ic shock, do not att empt to measure AC A in circ uits that have volt ages wh ich exc eed 250V AC. CAUTION: Do not make curr ent me asurements on the 20A scale for longer tha n 30 seco nds. Exce eding 30 s econds may cause da mage to t he meter and/or t he test leads.
15 RESISTAN CE MEASU RE MENTS WARNING: To avo id electric sh ock, d isconnect power to th e unit under test and discharge all capacit ors bef ore takin g any resistance measur ements. R emove th e batteries and un plug the line cor ds. 1. Se t the f unction switch to t he ! position.
16 CONTINUIT Y CHECK WARNING: To avo id electric sh ock, n ever measu re cont inuity on circuits or wires t hat have voltage on them. 1. Se t the f unction sw itch to t he ! position. 2. I nsert the black lead banan a plug into the n egative (CO M) jack Insert the r ed test l ead bana na plug into the positiv e ( ! ) jack .
17 CONTACT TEMPERA TURE MEASURE MENT S 1. Se t the f unction switch to t he (K) ºF or ºC positi on. 2. I nsert the Temperatur e Probe into the i nput jacks , making sur e to observe t he correct polarity. 3. T ouch t he Temperatur e Probe head to th e part whose tem perature you wish t o measure.
18 NON-CO NTACT TE MPERATUR E MEA SURE MENTS 1. Set the funct ion switch to the N on-Cont act (IR) ºF or ºC p osition. 2. Point the meter at th e surface to be measured. 3. If needed, press th e red IR Laser Pointer button to locate the exact sp ot being measured.
19 CAPACITANC E MEASUREM ENTS WARNING: To avo id electric sh ock, d isconnect power to th e unit under test and discharge all capacit ors bef ore takin g any capacita nce measur ements. R emove th e batter ies and unplug the line cor ds. 1. Se t the f unction switch to t he CAP posit ion.
20 FREQUENC Y MEASUR EMEN TS 1. Set the f unction switch to the “FREQ %” position. 2. Insert the black lead banana plug into th e negativ e COM jack and th e red test lead banana pl ug into t he positive Hz jack. 3. T ouc h the test prob e tips to the circuit unde r test.
21 AUTORAN GE/MANUA L RANG E SELE CTION When the meter is first turn ed on, it aut omatically goes int o AutoRang ing. This automatica lly selects t he bes t range for the measur ements bei ng made and is gen erally the b est mo de for most meas urements.
22 DATA HOLD The hold f unction fr eezes the r eading in the display. Press t he HOLD key moment arily to act ivate or to exit the hold funct ion. Note: In the Freque ncy mode, D ata Hold will fu nction only while a frequenc y is appli ed. AUTO POW ER OF F The aut o off feature w ill turn the meter off after 2 0 minutes.
23 MAIN TENA NC E WARNING : To av oid electric shock, disconnec t the test le ads from any so urce of v oltage before rem oving the b ack cov er or the battery c over. WARNING: To avo id electric sh ock, do not operat e your meter until the battery cov er is in plac e and fastened s ecurely.
24 B A TTERY REP LACE MENT WARNING : To avo id electric s hock, disconnect the test leads from any so urce of v oltage before rem oving the battery cov er. 1. W hen th e battery becomes exhausted or drops below th e operating vo ltage, “ ” will a ppear i n the left-ha nd side o f the LCD display .
25 FUSE REPLAC EMEN T WARNING : To avo id electric s hock, disconnect the test leads from any so urce of v oltage before rem oving the battery cov er. 1. Di sconnect t he t est leads fr om the me ter. 2. Re move the protective rubb er holster . 3. Re move the battery c over (tw o “B” sc rews).
26 TROUB LE SH OOTIN G There m ay be times wh en you r meter does not operate pr operly. Here are so me co mmon prob lems that y ou may have and some easy soluti ons to th em. Meter D oes Not Op erate: 1. Always r ead all th e instr uctions in t his man ual before use .
An important point after buying a device Craftsman 81079 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Craftsman 81079 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Craftsman 81079 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Craftsman 81079 you will learn all the available features of the product, as well as information on its operation. The information that you get Craftsman 81079 will certainly help you make a decision on the purchase.
If you already are a holder of Craftsman 81079, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Craftsman 81079.
However, one of the most important roles played by the user manual is to help in solving problems with Craftsman 81079. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Craftsman 81079 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
