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【1】 SAFETY PRECAUTIONS : Before use, read the following safety precautions This instruction manual explains how to use your multimeter CD721 safely. Before use, please read this manual thoroughly. After reading it, keep it together with the product for reference to it when necessary.
9. Be sure to disconnect the test pins from the circuit when changing the function or range. 10. Be sure to disconnect the test pins from the circuit when changing the function or range. 11. Never use meter with wet hands or in a damp environment. 12.
【3】NAME OF COMPONENT UNITS 3-1 Multimeter, Test leads Holster Test leod fix Plug Data hold Display Test pin switch Range hold Shift switch switch Finger guards Power switch and function switch Test probe (Red) Test probe (Black) COM input terminal 12A input terminal (with safety cap) Test lead (TL-21)
【4】DESCRIPTION OF FUNCTIONS ○Power switch and function switch Turn this switch to turn on and off the power and select the functions of V,Ω,● /● ,●●,mA,12A. 1.5V ○Shift switch When this switch is pressed (→), the modes change as follows. →...
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START ▼ Main unit and Damaged test leads damaged? ▼ Stop using it and No damage ▼ have it repaired. Check continuity of test leads. ④Short the red and ▼ ① Connect the test black test pins. lead of black plug to ▼...
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1) Applications DCV : Measures batteries and DC circuits. ACV : Measures sine-wave AC voltage as lighting voltages. 2) Measuring ranges DVC : 320mV〜1000V (5 ranges) ACV : 3.2〜750V (4 ranges) 3) Measurement procedure (See fig4,5, page5) ①Connect the test lead of the black plug to the COM input termi- nal and the red plug to the "V"...
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Checking Continuity (●) WARNING Never apply voltage to the input terminals. : 1) Application Checking the continuity of wiring and selecting wires. Measurement procedure (See fig7, page6) ①Connect the test lead of the black plug to the COM input termi- nal and the red plug to the "●...
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5-6 Battery check WARNING Never apply an input signals exceeding the battery voltage (approx. 1.5V) to the input terminals. : 1) Application Measured battery voltage. : 2) Measuring ranges 1.5V (See fig9, page8) 3) Measurement procedure ①Connect the testlead of the black plug to the COM input termi- nal and the red plug to the "...
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5-7-1 DC/AC mA Measurement Maximum rating input value DC/AC 320mA : 1) Applications Current in DC and AC circuit is measured. : 2) Measuring ranges 32mA〜320mA 2 range) (See fig11, page9) 3) Measurement procedure ①Connect the testlead of the black plug to the COM input termi- nal and the red plug to the "...
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③Apply the black test pin to the negative potential side of the cir- cuit to measure and the red test pin to the positive potential side. ④Read the value on the display. ⑤After measurement, remove the red and black test pins from the circuit measured.
⑥the 20A range after multiplying indicated value by 10, and the 200A range after multiplying indicated value by 100. 5-8-3 DC・AC Clamp Probe(CL-22AD) Maximum measurement value DC/AC200A ①Set the function at DCV or ACV. Set the range is 320mV with range hold switch at DC measurement.
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For more information, please contact the dealer. 6-3 How to Replace Battery and Fuse WARNING 1. If the rear case is removed with input applied to the input termi- nals, you may get electrical shock. Before starting the work, always make ure that no inputs is applied.
6 -4 Storage CAUTION 1. The panel and the case are not resistant to volatile solvent and must not be cleaned with thinner or alcohol. For cleaning, use dry, soft cloth and wipe it lightly. 2. The panel and the case are not resistant to heat. Do not place the instrument near heat-generating devices (such as a soldering iron) .
【8】SPECIFICATIONS 8-1 General Specifications Measuring Method : Dual integration Display : Counter:approx.3200counts : Bar graph:32 segments max. Range Selection : Auto and Manual ranges Over Display : "O.L" mark indication Polarity : Automatic selection (only "−" is displayed) Battery Discharge : If the internal battery has been consumed Display and the voltage drops, the display shows...
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8-2 Optional Accessories ・Current prode: CL-22AD, CL-20D, CL33DC ・High voltage probe: HV-60 ・Soft case : C-C7 8-3 Measurement Range and Accuracy Accuracy assurance range:23±5℃ 80%RH MAX. No condensaition. Function Range Accuracy Input Resistance Remarks 320.0mV ± (0.5%rdg+2dgt) ≧100MΩ 3.200V Approx.11MΩ 32.00V ±...
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