Instruction/ maintenance manual of the product Marine Instruments Radio Shack
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Owner’s Manual Please read before using thi s equipm ent. Clamp-On AC Ammeter with Det achable M ultimete r.
2 Contents ˆ Contents Features ...... ................. ........... ................. ................. ........... ................. ........... 3 A Wor d About Safet y .................... ........... ................. ................. ...........
3 Features ˆ Features Your RadioSh ack Clamp-O n AC Am- meter wit h Detac hable M ultimeter is design ed with a precisio n meter movem ent to avoi d mechan ical sho ck damage . You r port able, com pa ct m ul- timeter i s ideal for fi eld, la b, shop, bench, and ho me appli cations.
4 Features A WORD ABOUT SAFETY We have ta ken ev ery precau tion in design ing this m ultimete r to ensure that it is as s afe as w e can make it. But safe op eration depe nds on you , the operat or.
5 Special Panel M arkings MEASURE CURRENT AND VOL T AG E IN COMMERCIAL ELECTRICAL P ANELS. UNLIKE A HOME AC OUTLET , A COM- MERCIAL ELECTRICAL P ANEL HAS TREMENDOUS CUR- RENT SURGE POTENTIAL. THIS IS ESPECI ALL Y TRUE FOR THREE-PHASE INDUS- TRIAL ELECTRICAL P ANELS.
6 Specifications ˆ Specifications RANGES AC/DC V olta ge .................... ...... ...... ..... ...... ........... ...... ..... ...... ... 15V , 150V , 500V DC Current .................... ................. ................ ............ ...........
7 A Quick Look at Your Multimeter ˆ A Quick Look at Y our Multimeter OHMS ADJU ST (le ft s ide o f AC AMMETER MUL TIMETER multimeter) Ω O H M S.
8 Preparation ˆ Preparation INSTALLING A BATTERY Your multi meter requires one AAA battery (not supp lied) f or power. Fo r the best p erforma nc e an d lo nge st life , we rec ommend a Radio Shack al ka- line ba ttery.
9 Preparation 4. Place the battery in the c ompart- ment as indicate d by the po larity symbol s (+ an d –) marke d insid e. 5. Repla ce the bac k cover an d the top cove r , then secure them with the screws.
10 Using the Multimeter 3. Use th e screw to se cure the ammete r to the multim eter , then put the top c over you rem oved in Step 1 in a safe pl ace.
11 Using the Multimeter MEASURING DC/AC V OLTAGE WARNINGS: • NEVER CLAM P A TEST LEAD TO A HOT WI RE (USUALL Y RED, BLACK, OR BLUE IN AC WIRING CIRCUITS). IF ONE LEAD IS CLAMPED TO A HOT WIRE AND YOU TOUCH THE MUL TIMETER’S OTHER PROBE, YOU COULD RECEIVE AN ELECTRIC SHOCK.
12 Using the Multimeter to 2, t he AC o r DC voltage is 100 vol ts (2 × 5 0 = 100V). • If th e functi on selec tor is set to 15 DCV , read the lower line of ACVA/DCVA on th e mul tim e- ter then mu ltiply the reading you se e by 5. Fo r example , if the need le points to 2, the DC voltage is 10 volts (2 × 5 = 10V) .
13 Using the Multimeter Measuring AC V oltage Riding on a DC Source Bias To mea sure A C volta ge supe rim- posed o n a DC voltage source bi as while ignoring the D C voltage , you must fir st measure the AC and DC voltage s sepa rately, the n compute the peak voltage using th is form ula: Peak vol tage = DC vo ltage + AC volt - age/0.
14 Using the Multimeter 1. Set the fun ction selec tor to 150 mA DC mA . 2. Remov e power from the circ uit under te st and discha rge all capac itor s.
15 Using the Multimeter 4. Hold d own the t rigger leve r on the amm eter . The amme ter ’s jaws open. Then inse rt the wire you ar e measurin g inside the probe 's jaws and rele ase t he trig- ger le ver. 5. Slide T/3A/15A/30A on the amme - ter to 3A , 15A , or 30A (to m easure current).
16 Using the Multimeter MEASURING W ATTAGE You can use the m ultimeter a nd am- meter to tel l h ow man y watts of powe r an appl iance u se s. Thi s hel ps y ou de - termine what t he el ectricity costs are for that a ppliance . The fo llow ing for mul a can hel p you make th e neces sary conv ersion.
17 Care • If the function se lector is set to R × × × × 1K Ω , multi ply that readi ng by 1000 t o compute th e resistan ce. For exa mple, i f the nee dle points to 1 , t he resist ance i s 1000 oh ms (1 × 1000 = 1000 Ω ).
18 Care REPLACING THE FUSE If the multi meter do es not work, you might nee d to replace the fus e with the suppl ied 315 mA, 250V ceram ic fuse. The spare fu se is next to the battery c ompartment. Caution: Do not use a fuse wi th rat- ings oth er than those s pecified here.
19 Notes ˆ Notes.
22-602 01A01 Printed in China Radi oSha ck Cor p orat ion Fort W orth, Te xas 7 6102 Limited Ninety-Day W arranty This pro duct is warr anted by RadioSh ack against man ufactur ing defec ts in materia.
An important point after buying a device Radio Shack Marine Instruments (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Radio Shack Marine Instruments 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 Radio Shack Marine Instruments - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Radio Shack Marine Instruments you will learn all the available features of the product, as well as information on its operation. The information that you get Radio Shack Marine Instruments will certainly help you make a decision on the purchase.
If you already are a holder of Radio Shack Marine Instruments, 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 Radio Shack Marine Instruments.
However, one of the most important roles played by the user manual is to help in solving problems with Radio Shack Marine Instruments. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Radio Shack Marine Instruments 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
