I Instruction Manual
1-1 Safety Precaution – read before use 1
1-2 Product Description 2
1 Application and Features 2
2 Names of Various Parts 2
1-3 Explanation of Functions 3
1 Description of Each Function 3
1-4 Measuring procedure 4
1 Pre-operation Check 4
2 Preparations for measurement 4
3 Measurement of DC Voltage (DCV ) 5
4 Measurement of AC Voltage (ACV ~) 6
5 Measurement of DC Current (DCA ) 7
6 Measurement of Resistance (Ω) 8
7 Battery Check (1.5V) 9
8 Other Measurements 10
1-5 Maintenance 12
1 Service Check 12
2 Calibration 13
3 Replacing the fuse and batteries 13
4 Storage 14
1-6 Troubleshooting 15
1-7 Repair Parts 15
1-8 Specifications 16
1 General Specifications 16
2 Working Range and Tolerance 16
II Basic Knowledge on Testers (Circuit Testers)
2-1 What is a tester? 17
2-2 Principle of a Meter 17
2-3 Structure of a Tester 18
2-4 Ohm’s Law 20
2-5 Calculation of Effective Resistance 20
2-6 SI Prefix 21
2-7 Multiplier 21
2-8 Shunt 22
2-9 Rectification Circuit 23
2-10 Principle of an Ohm Meter 24
2-11 Color Code and Rating Code 25
III Tester Assembly
3-1 Properties of Soldering 26
3-2 Soldering Method 26
3-3 Soldering Practice 27
3-4 Preparations for Assembling 27
3-5 Assembling and Wiring 28
IV Operation Test and Calibration
4-1 Quick Operation Check 43
4-2 Calibration of the Tester 45
4-3 Measurement Results 46
4-4 Summary of the Results 47
V Circuit Calculation of the Tester
5-1 Meter Circuit 48
5-2 DCA Circuit 49
5-3 DCV Circuit 49
5-4 ACV Circuit 51
5-5 Ohm Meter (Ω) Circuit 52
5-6 Battery Check Circuit (1.5V) 54
- KIT-8D Type Circuit Diagram 55
VI Assembly of Buzzer Kit
(Optional Accessory) 56
- Parts List Sheet 61
Introduction
Thank you very much for purchasing Sanwa Model KIT-8D Analog Multitester Kit.
The KIT-8D is an analog multitester kit that we have developed for educational use through a wealth
of our experiences and achievements.
Although primarily designed as a kit, this product provides ve modes including voltage and current,
as well as high durability, allowing you to use it for a broad range of purposes.
In order to ensure its best performance as a finished product, you need to learn the procedures for
properly assembling, adjustment and handling the KIT-8D and making measurements.
Please thoroughly read this manual and make the best use of the KIT-8D.
The instruction manual should be carefully kept along with the KIT-8D.
Contents
