DC Clamp Probe (CL33DC) ……………………………043 【6】MAINTENANCE Maintenance and inspection ………………………………044 Calibration ……………………………………………………044 How to Replace Battery and Fuse ………………………044 Storage ………………………………………………………045 【7】AFTER-SALE SERVICE Warranty and Provision ……………………………………046 Repair …………………………………………………………046 Sanwa web site ……………………………………………047 【8】SPECIFICATIONS General Specifications………………………………………047 Optional Accessories ………………………………………049 Measurement Range and Accuracy ………………………049...
【1】 SAFETY PRECAUTIONS : Before use, read the following safety precautions This instruction manual explains how to use your multimeter CD731, 751 safely. Before use, please read this manual thoroughly. After reading it, keep it together with the product for reference to it when necessary.
5. Never use meter if the meter or test leads are damaged or broken. 6. Never use uncased meter. 7. Be sure to use a fuse of the spesified rating or type. Never use a substitute of the fuse or never make a short circuit of the fuse.
・3200 counts and circular bar graph available. ・A stand has adhered. ・Data hold and range hold. ・Auto power off(CD731)、Auto power save (CD751)(10min.) ・The current function is the auto range. (except 32μA、20A) ・The testlead fixing feature and holster has adhered. ・AC Measurement is the True RMS (CD751) .
【4】DESCRIPTION OF FUNCTIONS ○Power switch and function switch Turn this switch to turn on and off the power and select the functions V,Ω,● /● ,μA,mA,A. ○Shift switch When this switch is pressed (→), the modes change as follows. ・In the case of current function the mode change as ●...
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○How to Use the Stand Please use the stand that there is on the side of rear case like a figure. Fig 3 − 34 −...
【5】MEASUREMENT PROCEDURE 5-1 Start-up Inspection WARNING 1. Never use meter if the meter or test leads are damaged or broken. 2. Make sure that the test leads are not cut or otherwise damaged. START ▼ Main unit and Damaged test leads damaged? ▼...
5-2 Voltage measurement WARNING 1.Never apply an input signals exceeding the maximum rating input value. 2.Be sure to disconnect the test pins from the circuit when changing the function. 3.Always keep your fingers behind the finger guards on the probe when making measurements. 5-2-1 DCV Measurement (●) Maximum rating input value 1000VDC 1) Applications...
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[Caution for ACV measurement of CD731] ●Since this instrument employs the means value system for its AC voltage measurement circuit, AC waveform other than sine wave may cause error. ●There occurs error under such frequencies other than specified specification. [Caution for ACV measurement of CD751]...
5-3 Resistance Measurement (Ω) WARNING Never apply voltage to the input terminals. 1) Application Resistance of resistors and circuits are measured. 2) Measuring ranges 320Ω〜30MΩ (6 range) (See fig7, page11) 3) Measurement procedure ①Connect the black plug of the test lead to the COM input terminal and the red plug to the "Ω"...
●The buzzer sounds when the resistance in a circuit to measure is less than about 20Ω. ●The input terminals release voltage is about 1.3V. Testing Diode (● WARNING Never apply voltage to the input terminals. 1) Application The quality of diodes is tested. (See fig9, page13) 2) How to use ①Connect the test lead of the black plug to the COM input...
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The ranges can also be fixed using the range hold switch. ●The accuracy guaranteed frequency range 40Hz to 400Hz (CD731), 40Hz〜1kHz (CD751) . ●For the μA・mA range, no unit symbol will be indicated. − 40 −...
(measurement is not possible), a probable cause is a blown fuse. ●The accuracy guaranteed frequercy range is 40Hz to 400Hz (CD731), 40Hz〜1kHz (CD751) ●For the 20A range, no unit symbol will be indicated. ●5A Continuous : 20A for 10 secound max. with 5 minutes cool down interval.
5-7 How to use optional products WARNING 1.Never apply input signals exceeding the maximum rating input value of optional products. 2.Be sure to disconnect the test pins from the circuit when changing the function. 5-7-1 HV Probe (HV-60)Maximum measurement value DC30kV WARNING 1.The probe is designed for the measurement of very small DC circuit.
③Select either 20A or 200A with selector knob of clamp probe. ④Open the clamp part, have electric line(one line) clamped. ⑤Read the value on the display in A unit and when current probe of the 20A range after multiplying indicated value by 10, and the 200A range after multiplying indicated value by 100.
【6】MAINTENANCE WARNING 1. This section is very important for safety. Read and understand the following instruction fully and maintain your instrument properly. 2. The instrument must be calibrated and inspected at least once a year to maintain the safety and accuracy. Maintenance and inspection 1.
〈How to replace the fuse〉 Fuse of the Specified Rating and Type 0.5A/250V φ5.2×20mm Blowout capacity:300A 20A/250V φ6.3×32mm Blowout capacity:1000A Ceramic ①Remove the holster from the meter. ②Opening the stand of the meter reverse side and remove the screw with a screwdriver. ③Pull out the fuse out of holder on the circuit board and replace it.
(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.
3)Repair after the warranty period has expired: In some cases, repair and transportation cost may become higher than the price of the product. Please contact Sanwa authorized agent / service provider in advance. The minimum retention period of service functional parts is 6 years after the discontinuation of manufacture.
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10 min. (auto power save) Fuse protection 0.5A/250V φ5.2×20mm Blowout capacity 300A 20A/250V φ6.3×32mm Blowout capacity 1000A Dimension and Weight 165.5 (H) ×78 (W) ×41.5 (D) mm approx.310g(CD731) 165.5 (H) ×78 (W) ×41.5 (D) mm approx.315g(CD751) Accessories Instruction manual 1, Holster (H-70)
8-2 Optional Accessories ・Clip adapter CL-11・HV probe HV-60 ・Corrent probe CL-20D, CL-22AD, CL33DC・Carring casc C-C7 8-3 Measurement Range and Accuracy Accuracy assurance range:23±5℃ 80%RH MAX. No condensaition. ●CD731 Function Range Accuracy Input Resistance Remarks 320.0mV ±(0.5%rdg+2dgt) ≧100MΩ 3.200V Approx.11MΩ DCV ( 32.00V...
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●CD751 Accuracy of ACV : Specified at 5%-100% of the range. CF: < 3:1 Function Range Accuracy Input Resistance Remarks 320.0mV ±(0.5%rdg+2dgt) ≧100MΩ 3.200V Approx.11MΩ 32.00V DCV ( ±(0.9%rdg+2dgt) 320.0V Approx.10MΩ 1000V 3.200V Approx.11MΩ Accuracy in the case * 32.00V of sine wave AC : ...
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