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4-5 リラティブ測定(相対値測定) : ボタンを押すと、 と が点灯し、 押した時点の入力値 を基準とし0と表示します。 解除にするにはボタンを再度押してください。 例)DC 30.00 V入力時にボタンを押した後の表示 実際の入力値 表示器の数値 DC 30.00 V DC 00.00 V DC 35.00 V DC 05.00 V DC 25.00 V DC −05.00 V 備考: ファンクションでは、使用できません。また 以外のファンク ションでは、リラティブ測定時はレンジが固定されます。 4-6 オートパワーオフ 電源ON時からスイッチやボタン操作が行われないとき、約30分後に 自動的に電源が切れ表示が全て消えます。 復帰する場合はいずれかのボタンを押すか、被測定物を一度DMMか...
5-6 Current Measurement ( 【6】MAINTENANCE 6-1 Maintenance and Inspection 6-2 Calibration and Inspection 6-3 Storage 6-4 Battery and Fuse Replacement 【7】After-Sale Service 7-1 Warranty and Provision 7-2 Repair 7-3 SANWA web site 【8】SPECIFICATIONS 8-1 General Specifications 8-2 Measuring Range and Accuracy...
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Before use, please read this manual thoroughly to ensure correct and safe use. After reading it, keep it together with the product for reference to it when necessary. Using this product in ways not specified in this manual may damage its protection function. The instructions given under the headings of “...
5. Never use the meter near equipment which generates strong electromagnetic waves or is charged. 6. Never use the meter if the meter or test leads are damaged or broken. 7. Never use the meter with the case or battery lid removed. 8.
[2] APPLICATIONS AND FEATURES 2-1 Applications This is a digital multimeter designed for measurement of low- voltage circuits. This meter is useful for measuring / analyzing circuits of small communication devices, home electric appliances and batteries. 2-2 Features The current terminal is protected with a safety cap. Easy-to-read display showing Eye-friendly large size LCD.
[3] NAMES OF COMPONENT UNITS 3-1 Meter Select button Range hold button Relative button Data hold button Power switch & function switch Safety cap Measuring terminal μ A/mA COM (common) terminal Measuring terminal 3-2 Test Leads — 4 —...
3-2 Display Indication of numerical value. Indication of relative mode operation. Indication of negative sign of numerical data. Indication of AC measuring function operation. Indication of DC measuring function operation. Indication of auto range mode operation. Not used with this meter. Indication of diode test function operation.
[4] DESCRIPTION OF FUNCTIONS 4-1 Power Switch & Function Switch Turn this switch to turn on and off the power and select a measuring function. 4-2 Measuring Function Selection: When the button is pressed, the functions change as follows: V position: DC voltage ( AC voltage ( DC voltage ( position: Resistance measurement (...
4-5 Relative Measurement: When the button is pressed, will light and the input value when the button was pressed will become 0 as the reference. To cancel it, press the button again. Example: Display after pressing the button at DC 30.00 V input Actual Input Value Value in Display DC 30.00 V...
[5] MEASURING PROCEDURE WARNING 1. Do not apply an input signal exceeding the maximum rated input of each function. 2. During measurement, do not change the function switch. 3. During measurement, do not touch the test pin side of the flange of the test lead.
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Always conduct the start-up inspection to ensure safety. (Inspection by the continuity check.) Inspection start Meter or Broken. test leads not broken? Check Not broken. Insert black plug of test lead to terminal and red plug to ) terminal. with function switch and select button.
5-2 Voltage Measurement ( Function Max. Rated Input Range DC 600 V 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 600 V AC 600 V 4.000 V, 40.00 V, 400.0 V, 600 V Example of DCV Example of ACV measurement measurement DCV and ACV Selection...
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5-3 Resistance Measurement ( ), Diode Test ( ), Continuity Check ( WARNING Never apply a voltage to the measuring terminals. 5-3-1 Resistance measurement ( Function Max. Rated Input Range 400.0 , 4.000 k , 40.00 k , 40.00 M 400.0 k , 4.000 M , 40.00 M Caution: Resistor...
5-3-3 Continuity check ( Remarks: Continuity buzzer sound range: Resistance ~ 85 (±45 ) measurement Diode test Continuity check Selection 5-4 Frequency Measurement ( CAUTION Measurement prohibited Never use the meter for measuring frequencies to ground as the earth leakage breaker may trip. Function Max.
Remarks: Input sensitivity: 3 Vrms or over. Zero cross (+ potential - potential + potential) frequencies can be measured. Frequencies of + potential only or – potential only such as logic pulses cannot be measured. Frequencies less than 1 Hz cannot be measured. When the Hz function is used, the data hold and relative functions cannot be used.
5-6 Current Measurement ( A/mA) WARNING 1. Never apply a voltage to the measuring terminals. 2. Never apply an input exceeding the maximum rated current. 3. Be sure to connect the meter in series via a load. Correct measuring Wrong measuring method method Power supply...
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A mA measurement Function Input Terminal Built-in Fuse 0.5 A/250 VFuse Breaking capacity1.5 kA If the indication will change little when an input signal is applied or a current value which is significantly smaller than the expected value is indicated, possible causes are the input terminals, incorrect setting of the function switch, or blown fuse.
If any of the above problems exists, stop using the meter and request for repair. 6-2 Calibration and Inspection For more information, please contact Sanwa’s authorized agent / distributors. service provider, listed in our website. See section 7-3. 6-3 Storage CAUTION 1.
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WARNING 1. To avoid electric shock, do not remove the rear case with an input being applied to the measuring terminals. Also, before starting replacement, make sure the power of the meter is OFF. 2. Be sure to use the replacement fuse of the same rating. Never use a substitute for the fuse nor short the meter.
(1) year from the date of purchase. This warranty policy is valid within the country of purchase only, and applied only to the product purchased from Sanwa authorized agent or distributor. Sanwa reserves the right to inspect all warranty claims to determine the extent to which the warranty policy shall apply.
Please contact Sanwa authorized agent / distributor / service provider, listed in our website, in your country with above information. An instrument sent to Sanwa / agent / distributor without above information will be returned to the customer. Note: 1) Prior to requesting repair, please check the following: Capacity of the built-in battery, polarity of installation and discontinuity of the test leads.
[8] SPECIFICATIONS 8-1 General Specifications Operation method - method AC measuring method Average value method 4000 counts Sampling rate Approx. 3 times/sec. Range selection Auto and Manual (Some with Manual only or Auto only) Over-range indication “OL” shown in numerical part. (600 V DC/AC excluded.) Polarity indication “...
8-2 Measuring Range and Accuracy Temperature: 23±5 ˚C, humidity: 80 % RH max. (no condensation), voltage 2.4 V or above. rdg (reading): Read value, dgt (digit): Number of counts of last digit Range Accuracy Input Resistance Remarks ±(0.5 %rdg+2dgt) 400.0 mV Approx.
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Frequency ・ Auto range only. 5.000 Hz ・ The data hold and relative functions cannot be used. ・ Sensitivity: 3 Vrms or over. 50.00 Hz ・ Frequency less than 1 Hz cannot be measured. 500.0 Hz ・ Input resistance Approx. 2 k ±(0.3 %rdg+3dgt) Because the input resistance is as low as approx.
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* Accurate measurement may not be possible in places near a transformer, large-current line, etc. where a strong magnetic field is present or near radio equipment, etc. that generates a strong electric field. Accuracy calculation Example: DCV function True value: 100 mV Range accuracy: 400 mV range …±(0.5 %rdg+2dgt) Error: ±(100.0 mV x 0.5 % + 2dgt) = ±0.7 mV Indicated value: 100.0 mV ±...
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