Table of Contents
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Table of Contents
Summary of Contents for Hung Chang HC-5050E
- Page 2 SAFETY RULES Waming This tester has been designed with safety in mind. However, no design tan completely protect against incorrect use. Electrical circuits tan be dangerous and/or lethal when lack of caution or poor safety practices are used. Read The Manual Read this Instruction Manual carefully and completely.
- Page 3 High Voltage 1s Dangerous Always Start with the power off. Be sure there is no volt@e f%\: present before making connections to the circuit. Don’ t tauch the tester, its test leads, or any part of the circu\\* ,:i’ I, while it is switched on.
- Page 4 SECTION 1 FIG. l-l. Controls, Indicators and Connectors - 3 -...
- Page 5 Table l-l. Controls, Indicator and Connector ment off or on. Working sign lamp: The lamp will glow, indicating that 9;Vi’:‘:G BAT in this instrument is applied and in good condition. If not glow, the 9V BAT should be Change as soon as possible.
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Page 6: Specifications
PAT. No KOREA 9546 USA 4139821 FRANCE 7709426 JAPAN 1063542 TAIWAN 11114 easy reading & more accuracy. For Bench-Top using & Slip preventing rubber feet. SPECIFICATIONS Dc Volts Ranges 0-0.3, 1.2,12,30,120, 300, 1200v 0- 2 1.5, 0.6, 6, 15, 60, 150, 600V at Center 0. Approx lOMG!, 3Ms2 at 30OmV range. - Page 7 A C C u r r e n t s Ranges: O-12A, within + 3.5% full scale. DC, AC 12 Amp range o$..,;: ,:.’ Separate jack. DC Resistance Ranges RX 1 Rx 10 R x 1K R X 1M Accuracy : “2.5” Arc Range slector switch, power on-off switch, switch, “0”...
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Page 8: Operating Instructions
SECTION 11 OPERATING INSTRUCTIONS Be extremely careful when working in high voltage circuits. Even though meter and. test leads are well insulated, it is not advisable to handle the instrument or leads while power is on in the circuit being measured. N O T E If the value of the voltage or current to be measured is unknown, always Start with the highest range to avoid... - Page 9 3. Connect the black test lead to the negative side of the circuit circuit . . & * -,i 4. Set reversing switch to the + Position. Turn the power onin ’ :it:; the circuit to be, tested. If the pointer deflects to the lefthf., J. In this case, turn off power in the circuit to be tested, set the reversing switch to the 5.
- Page 10 Measuring Decibels D B = 10 log ~c)~~~l’ or, 0 log E when RI = RZ This instrument is calibrated with 0 DB referenced to 1 milli- E (reading) watt at 6OOs2. i.e., DB reading corresponds to 20 log (E measured across 600~2). The decibel scale at the bottom of the dial is numbered from -10 through 0 fo + 11 To measure decibels, proceed according to instructions for AC Voltages, and read the DB arc.
- Page 11 4. Observe the instrument indication. It should read “0” on the OHMS arc. which is at the top of the dial. 5. If the pointer does not read “O”, rotate the ZERO OHMS&A~:Y at the left on the front Panel until it does. If the pointer ca&ot be brought up to the “0”...
- Page 12 Connect the black test lead in the COM - jack, and the red test lead in the V+n Set the range switch for the appropriate milliampere range. With the circuit power turned off, open the circuit at the Point where its current is to be measured. Connect the instrument in series with the circuit, observing proper polarities when making connection.
- Page 13 W h e n the meter pointer tan no longer be adjusted to”Fer&:’ ohms on the all ohm ranges,replace the 1.5 volt battery. the bottom of the case. Simply remove the old and replace with Care A little precaution in handling and caring for your teste-r tan pay big dividends in satisfaction.
- Page 14 SCHEMATIC DIAGRAM 2 25K “ 7 2 2 r* 9 3 b I R I O 2 5 0 IK 0 01 bl 0 9 7 5 0 4 KLR206E a b 2N3905 9 0 0 x 3 0 0...
- Page 15 C.P.O. Box 3125 Seoul, Korea Tel : [02) 732~&3611/20 Fax: (021 733-5385 MADE IN KOREA...
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