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Summary of Contents for Center 251
- Page 1 HVAC CLAMP METER...
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY INFORMATION ............1 GENERAL SPECIFICATION ..........1 ELECTRICAL SPECIFICATION ........... 2 3-1 D ..............2 IRECT OLTAGE 3-2 D ............2 IRECT OLTAGE 3-3 A ............2 LTERNATING OLTAGE 3-4 A ........... 2 LTERNATING OLTAGE 3-5 D .............. -
Page 3: Safety Information
Clamp Meter SAFETY INFORMATION Do not operate the tester if the body of meter or the test lead look broken. Check the main function dial and make sure it is at the correct position before each measurement. Do not perform resistance and continuity test on a live power system. Do not apply voltage between the test terminals and test terminal to ground that exceed the maximum limit record in this manual. -
Page 4: Electrical Specification
Clamp Meter Power Source: 1.5V size AAA battery X 2 Typical battery Life: 50 hours (without buzzer, backlight function) Auto Power Off: If there is no key or dial operation for 30 minutes, the meter will power itself off to save battery consumption. This function can be disabled by press and hold the “... -
Page 5: Direct Current
Clamp Meter 3-5 Direct Current Range Resolution Accuracy 600 μA 0.1μA ±1% + 2dgts 3-6 Direct Current Peak Range Resolution Accuracy 600μA 0.1μA ±1.5% + 10dgts 3-7 Alternating Current Range Resolution Accuracy 60 A 0.01 A ±1.9% + 10dgts 600 A 0.1 A 3-8 Alternating Current Peak Range... -
Page 6: Description Of The Instrument
Clamp Meter 4. DESCRIPTION OF THE INSTRUMENT 4-1 Description Of The Display Auto power off indication Polarity indication Low battery indication Alternative source indication Direct source indication Current measurement indication Voltage measurement indication Temperature measurement indication Capacitance measurement indication Data hold indication Peak data indication Continuity test indication Measurement unit... -
Page 7: Description Of Front And Rear
Clamp Meter 4-2 Description Of Front And Rear Current sensing Clamp ○ Clamp opening handle ○ Function select dial ○ Peak button & Backlight button ○ AC/DC button & °C/°F button ○ Data hold button ○ LCD display ○ COM input terminal ○... -
Page 8: Button Instruction
Clamp Meter 5. BUTTON INSTRUCTION 5-1 HOLD Function It is possible to freeze the value displayed by pressing on the "HOLD" button. To deactivate this function, press the "HOLD" button a second time. 5-2 PEAK Function If you press on the "PEAK" button , the display will show " "... -
Page 9: Dc Voltagem
Clamp Meter 6-2 DC Voltage Measurement： Switch the main function selector range. Connect red test lead to “ + ＂ terminal and black one to the “COM＂terminal. Measure the voltage by touch the test lead tips to the test circuit where the value of voltage is needed. - Page 10 Clamp Meter 6-4 DC Micro Ampere Measurement： Switch the main function selector to range. Connect red test lead to“+＂Terminal and black one to the “ COM ＂ terminal. Cut the power to the circuit to be tested and connect the instrument in series with the circuit with the black test lead on the negative“－...
- Page 11 Clamp Meter 6-7 Continuity Test With Buzzer： Switch the main function to range. Connect red test lead to “ + ＂ terminal and black one to the “COM＂terminal. Connect tip of the test leads to the points where the conduction condition needed.
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Page 12: Battery Changing
When take current measurement, keep the cable at the center of the clamp will get more accurate test result. Repairs or servicing not covered in this manual should be performed only by qualified personal. - Page 13 CENTER TECHNOLOGY CORP. 4 / F NO. 415, Jung-Jeng Rd., 238 Shu-Lin, Taipei, Taiwan TEL : 886-2-26763926 E-Mail : center@centertek.com FAX : 886-2-26763925 http : / / www.centertek.com GCA000251-02000...
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