User manual SEARS C950-52475-5

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Manual abstract: user guide SEARS C950-52475-5

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[. . . ] Conract a qualified person for assistance before attempting to make measurements on any high energy circuit. Special equipment designed for use with these circuits SAFETY rS No ACCIpENT -2- 2. PROTECTION-UL Fully Overload hotected - Ot*l. . d 1244, VDE O4I1 3. SPECIFICATIONS and protection is accomplishcd orr rrll t;trtllcs For overvoltage protection' a seclected sparkgap witlr low capacidance is-used which proved superior in pcrlirrtttrtrrcc'than the varistors used in other instrumcnts Art ilrrrrslr ( tlrrcnt limiter combination protects 500V DC or lttrs A(l trrt all resistance rages. Geneil oi"pt"y, ZUdigit LcD. 0. 5tt height, with polarity LO BAT indication. Overrange Indication: 3 least significant digits blanked. [. . . ] (0. 5% rdg + 5 digits) 200V 100mV on all ranges + (l% ds + 5 disits) 750V lV cxcept 200mV 200mV 45Hz - 500H2 on all ranges 2004 2KA 20KO 200Ka 2Ms} 20Mo 100mO ls} 10sl 1000 1KO 10KO digits) x(0. 3% rdg+ 1 digit) x (0. 3% rdg + 1 digit) !(0. 3% rdg + 1 digit) X (0. 75Vo rdg + 2 digits) !(2. 5% rdg + 5 digits) (0. 5% rdg + 3 ! 2, 8v v mV mV mV mV Convcrsion: Calibrated for rms of sine wave lnput Impedance: 10M shunted by 100pF on all ranges Max aliowable input: 500V dc or rms. trnt". _ U _ -6- Continui9Test Resoonse ('ttl ) 4. OPERATING INSTRUCTIONS General Resistance range: Btzzer sounds with rcsistances less than 200O approximately. time: Less than 100 m Sec. Diode Test ( -t<- ) Test voltage: 2. 8 Volts Maximum test current: 3m Ampcres, Temperature Measurement Range OoF Re solution 1oF Accuracy ro 2000oF Sensor; type K (NiCr-NiAI) ! + (50 + 2 aigitr; 3% , p to ZZSof sturment that is accurate, reliable and always ready for use. Equipped with nine functions and 36 ranges, each test position is quickly and easily selected with a simple rurn of the single selector switch. Smail enough to fit in attache cases and equippid -*'rth a multi-position tilt stand. This instruments is equally suited for design engineering, production. testing, field servicing, and industriJl mainienance apprlcatlons. The Sears Model C950-52475-5182418 is completely portable, high level 3-112 dig:^t multimeter designed for use by the engineer, technician, and hobbyist who demands an in- of rdg ovcr 2250F Conductance Measurement Range 200nS wffi;s T. fo Resolution 0. 1nS Accuracy t(7. 5% rdg + 10 digits) ^-la electrical shock hazard and/or damage to the instrument, do not measure voltages that mighl exceed 500V above earth sround. Before the use oiinstrument, inspect test leads, connectors, and prodg for cracks, breaks, or any defects in the insulation. Capacitance Measurement Range Resolution 1pF 0. 001uF 0. 01uF Accuracy 2000pF 2uF 20uF !(r. s%F. S. +5disits) !(z7oP. s. Connect test leads to the circuit under test. Built-in buzzer sounds if the circuit under test is con_ tinuous. s2", and RANGE -9- ments th" -"t"t can be used for making temperature measureby connecting the tempelature probe (included) to , , v. o, , , and , , coM" jack. Do not exceed 150V continuously or 300V momentary (no more than l0 seconds) to avoid any dannge between the . . V. A" and "COM" jack or instrument. POWER/FUNCTION switch to "DC o" , and RANGE switch to "TEMP" position. Remove the protective plastic tube from the thermocouple place tihe probe or thermocouple tip on or in the material to be measured and take the temperature reading directly from the display. The reading is in Fahrenheit Connect test leads to the measuring point and read the value on Digital DisPlaY' , l q I ral A' r' S; SIMENS = -oh; = international unit of con- B. The readout is in terms cif conductance with unit ductance formerly known as the mho. 2. r "F). nS (10-95). If resistance rcading is required, yo11 can divide I by the t""Jo"i, ft"ti-"rtdly by'i010' Use conductance measurement as a leakage tester. The S conductance mngp effectively extends the resistance measurement capability of this DMM to the point up to 10, 000M ohm where it can be used to provide useful leakage measurement on variable components, diodes, cables, connectors, printed- circuit 6oards (pcb's), etc. In all cases the test voltage is The meter is designed to show temperature automatically when a thermocouple is plugged into the jack' but the display will show "1" when no thermocouple is connected. <5V DC. I x 1010 = 0. 1 X 1010 = Resistance Readout (ohm) For ExamPle; If the measurement result is 10, the resistance reading @leadto"coM". 2. switch to "S Conductance Neasyrenebt POWER/FUNCTION switch ) to "DC O" , and RANGE is =1" o I I J x toto = 0. 1 X loro = l, oooM ohm 10" If the measurement result is 1000 1. , ^*^ rvvv 1. | x l0ro . ^ It is necessary to replace battery when the words "LO BAT" appears in the upper left corner of the LCD scteen. =l0Xl06ohm = l0M ohm =0. 001 x1010 3. Range 2. Capacitance Measurement it inward. Unsnap the battery connector and replace with new 9 volt battery. [. . . ] CARBoN RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR 9OOO %W C. METAL 20Ka a)2 c1, 2, 3 C4 C5 ZENERDIODEl2V]N963 R22 R23 c6, 7, t7, 12, 73 c8 c9 ('1 0 cl5, c16 c14 17 cr8, 19, 20 c21, 26, 27 c22 c25 c28 8C1, , 2 R1 R2 R3 R4 RESISTOR l OMA IIW ( . MI-TA I ZENER DIODI] 1, 2V 1N 94918 CAPACITOR it}pF ]6V ELECTROLYTI. ] CAPACITOR 1p F 16V IANTAI_ CAPACITOIi. 4. 7p F 1 6V E T. ECTROLYTIC CAPACITOR 0. 1rJ F 63V ME tAL|ZF, D CAPACITOR 0. 022!F 630V MrCA CAPACITOR O. 04'1 1tF 63v METAI, IZED CAITACIIOR 0. 22pF 63y MHT, ALIZED CAPACITOR 100pF 50V MtCA CAPACITOR 0. 01p F 50V CERAMIC CIAItrACITOR 30pF 50V CERAMIC CAPACITOR 0. 33pF 16V ELECTROLYTTC CAPACITOR 0. 022pF 5Ov CERAMTC CAPACITOR 0. 22pF 50y CERAMIC CAPACITOR. [. . . ]

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