Instruction/ maintenance manual of the product 1526 Fluke
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Septemb er 2000 Rev.2, 2/03 © 2 0 00 - 2 0 0 3 F l u k e C or p o r at i o n. A ll r i g hts re s er v ed . P r i n te d i n U S A All produc t nam es are tradem arks of their respec tive c ompanies .
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i Table of Contents Title Page Unp acking the Me ter......................................................................................... 1 Safe ty Info rmatio n and S ymbo ls .......................................................................
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ii List of Tables Table Title Page 1. Key and S witch Descrip tions ..................................................................... 6 2. Di spl ay Descr ipti on ................................................................................... 8 List of Figures Figure Title Page 1.
1 Fluke 1520 Unpacking the Meter The Fluke Mode l 15 20 Meg OhmM eter (h erea fter, “th e me ter”) is a handheld instr ument designe d prim aril y to make resi stan ce/ ins ul ation r esista nce measur eme nts. The MegOhmMet er incl udes the f ollowi ng i tems, se e Figure 1: • 2 test leads, red and bl ack, 1.
Fluke 1520 Users Manual 2 acf02f. eps Figure 1. Shipme nt Cont ent.
MegOhmMeter Safety I nform at ion and S ymbols 3 Safety Information and Symbols A Cauti on identif ies co ndi tion s and act ion s t hat may dam age th e Met er. A Warning identi f ies con di tions a nd act ions that pose h az ard( s) to t he user. I nter nat ional sym bols on the Meter and i n the manual are expl ained b elow.
Fluke 1520 Users Manual 4 Safe ty Info rmatio n Use of inst r ument i n a manner not specif ied by t he ma nufact ur er may im pai r safety f eat ures/ pr otecti on provid ed by the eq uipment. Read t h e f ollowi ng safety infor mation car efull y befor e usi ng or servi cing the i nstru ment .
MegOhmMeter Safety I nform at ion and S ymbols 5 Safe ty Info rmatio n (co nt.) • Place test l ead s in pr oper input term i nals. • Disconnect t he live t est lead bef ore di sc onnect ing the neut ral t est lead. • Do n ot us e th e Me ter if the batte ry ind icato r ( ) shows a battery empty condition.
Fluke 1520 Users Manual 6 Key functions Table 1. Key and Switch Descriptions Rotary switch To select a measurement function. Used for the Insul ati on Resist ance and Low Resistance test funct i ons . Press and hold this button until the main readi ng is stable.
MegOhmMeter Key functi o ns 7 Table 1 (cont inued) Resistance Beeper function Turns the Beeper function ON and OFF. When ON, the icon appears on the display and t he Meter beeps at short circ uit. Low Resistance function Turns the test lead resistanc e compensation ON.
Fluke 1520 Users Manual 8 Display Table 2 and Fi gure 2 de scri be the di splay. Table 2. Display Description 1 Voltage appli ed to the probes in Insulat i on Resistanc e funct i on. 2 Low Resistanc e/Resistanc e funct i on indic ator. 3 Resistanc e reading held from the last measurement in Ins ul ati on Resist ance or Low Resistanc e function.
MegOhmMeter Key functi o ns 9 1 3 2 6 7 9 10 8 4 5 acf12f. eps Figure 2. D isplay.
Fluke 1520 Users Manual 10 Using the Meter Connecting to the Circuit Under Test Figure 3 sh ows the pr oper co nne cti on s. Warning To prevent electr ic shock wh en per form i ng resist ance t est s, remove al l power fr om t he circui t to be measured.
MegOhmMeter Using the Met er 11 acf04f. eps Figure 3. Connect ing to the C ircuit Under Test.
Fluke 1520 Users Manual 12 Auto-Shut-Off The Meter aut om ati cal ly tur ns off af t er 15 minut es of non- use. I n Lo Ohms mode, t he meter turns of f aft er 5 minut es of non- us e. To t ur n the met er back on, t urn t he r otar y swi tch to OFF, then t o t he desi r ed funct i on.
MegOhmMeter Using the Met er 13 To measure i nsulat ion r esi sta nce, do t he f ollowi ng: 1. Select t he t est volt age. 2. Connect t he prob es t o the cir cuit t o be measur e d. The meter aut omat i cally det ect s i f t he ci rcuit is energi zed, and displ ays the det ect ed volt age.
Fluke 1520 Users Manual 14 The Meter be eps whe n the readi ng is st able. Th e upper right display s hows t he same resist anc e readi ng as th e main di spl ay. When resist anc e i s higher t ha n the maximum di spla y range, t he meter r eacts as follows : • I f the 250V r ange i s sel ecte d, the displ ay r eads >1 000 M Ω .
MegOhmMeter Using the Met er 15 Using the LOCK Functi on to Measure I nsulation R esistance The LOCK funct ion hol ds th e t est volt age on the pr obes. Use LOCK to make l ong durat ion measurement s wi t hout ha vi ng to pus h a nd hol d the TEST but ton.
Fluke 1520 Users Manual 16 Measuring Low Resistance To measure l ow r esista nce: 1. Zero out t he test l ead re si stan ce ( see Tabl e 1) . 2. Connect t he prob es t o the cir cuit t o be measur e d. If vol t age is pr ese nt on t he pr obes, t he vol t age is dis play ed.
MegOhmMeter Using the Met er 17 5. Exchange t he red ( +) and bl ack (-) pr obes on the cir cuit and r epeat steps 3 an d 4 to reverse t he polar it y of the test curr ent .
Fluke 1520 Users Manual 18 Measuring Resist ance 1. Connect t he prob es t o the cir cuit t o be measur e d. Measure vol tag e f irst to ensur e t hat no ha zar dous v oltage i s present , then swi t ch to Ohms. 2. If t he r esist ance i s appr oxi mately 30 Ω or less, the Meter beeps.
MegOhmMeter Using the Met er 19 Checking the B attery This funct i on t est s the b at ter y und er si mul ated loa d per EN61557. Di scon nect all t est lead s fr om any circui t. acf09f. eps Fu ll Em pty Em pty 100% - Full 0% - acf13f. eps Figure 4.
Fluke 1520 Users Manual 20 Maintaining the Met er This sect ion provi des b asi c mai nten anc e inf or mati on, incl uding f use and b atter y replacem ent i nst ruct i ons.
MegOhmMeter Maintaini ng the Meter 21 Replacing and Dispo sing of the Batteries Warning To avoid ele ctri c shock, dis connect t he test l eads fr om t he inputs bef ore opening the Met er for bat tery r eplacement.
Fluke 1520 Users Manual 22 4. Place the Met er f ace down on a n onabr asi ve sur face an d loos en the two s crews wi th a flat - blade scr ewdr iv er . 5. Lift t he batter y access li d away fr om the Meter . 6. Replace t he C cells a s shown i n Fi gur e 5.
MegOhmMeter Maintaini ng the Meter 23 acf10f. eps Figure 5. R eplacing t he Batteries..
Fluke 1520 Users Manual 24 Testing and R eplacing the Fu se Warning To avoid ele ctri c shock, dis connect t he test l eads fr om t he inputs bef ore opening the Met er for f use replacem ent.
MegOhmMeter Maintaini ng the Meter 25 Replacin g the Fuse Warning To avoid ele ctri c shock, pers onal inj ury or damag e to t he Meter, use ONLY the specif i ed fuse, an d in accor d ance wi th the f ollowi ng procedur e.
Fluke 1520 Users Manual 26 acf11f. eps Figure 6. Re placing the F use.
MegOhmMeter Replacement Par ts an d Opt ional Ac cessor i es 27 Replacement Pa rts and Optional Accessor ies Replacement Part Part Number Battery 1.5 V Alk aline Size C 423582 Test Lead set 669058 Tes.
Fluke 1520 Users Manual 28 Principle of Me asurement f or Resistan ce The Meter mea sure s r esist an ce by i ndu cing a c urrent in t he ci rcuit under t est , meas ur ing the resul t ant pot e nti al acros s t he cir cui t, and t hen cal c ulat i ng the resi sta nc e of t he circui t.
MegOhmMeter Specifi cation s 29 Specifications Environmental Operating Temperat ure -10 ° C to +50 ° C Storage Temperature -40 ° C to +70 ° C Temperature Coeffi c ient 0.
Fluke 1520 Users Manual 30 Mechanical Specifi cations Size 23,4 x 10 x 6,4 cm (9.2 x 3.9 x 2.5 in) Weight 1 kg (2.2 lbs.) Drop requirement Per IEC 1010-1 Shock and Vibration Conf orms t o MIL-PRE F-28.
MegOhmMeter Specifi cation s 31 Electrical Speci fications Batter y C Size 1.5 V al kaline , AN SI/N EDA-1 4A, IEC - LR14 (4 pieces) Fuse 6 mm x 32 mm (0.25 x 1.25 inch), 0.5 A 660 V, Fast A cting , 50 A Min imum Inte rru pt ratin g Insulation Resistance Display Ranges 4.
Fluke 1520 Users Manual 32 Test Voltages 250 V, 500 V, 1000 V Accuracy +20 %, -0 % Nominal Current 1 mA Number of measurements 5,000 Circuit ry Prot ect ion test inhi bit ed if ≥ 30 V ac or dc at inputs Lo Ω Display Range 40.00 Ω Measurement Range 0.
MegOhmMeter Specifi cation s 33 Voltage Range 600 V, dc, 50/60 Hz Resoluti on 1 V Accuracy 2 % + 2 counts Analog Bar Graph 0 to 1000 V Resistance Range 4000 Ω Accuracy 2 % + 2 counts Resoluti on 1 .
Fluke 1520 Users Manual 34 Limited War ranty & Li mitation of Liabi lity Each Fluke produ ct is w arranted to be free from defe cts in mat erial an d workma nship und er norm al use and service . The warrant y period is three years an d begin s on t he da te of shipm ent.
MegOhmMeter Specifi cation s 35 the Buyer transport ation prep aid and the Bu yer will be bi lled for the repair and return t ransporta tion charges (F OB Ship ping P oint).
Fluke 1520 Users Manual 36.
An important point after buying a device Fluke 1526 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Fluke 1526 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 Fluke 1526 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Fluke 1526 you will learn all the available features of the product, as well as information on its operation. The information that you get Fluke 1526 will certainly help you make a decision on the purchase.
If you already are a holder of Fluke 1526, 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 Fluke 1526.
However, one of the most important roles played by the user manual is to help in solving problems with Fluke 1526. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Fluke 1526 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
