Mastech MS8910 - Smart SMD Tester Manual

Introduction

The Tester is a handheld and battery operated very convenient small.

Tool that is specially used to measuring SMD (Surface Mounting Device), there are Chip type resistor, Chip type capacitor and diode, for example.

Moreover, the Tester have the continuity checking function The Tester is automatically identified the passive Component as has been indicated above. Therefore, the measurement are allowed by fully automatic detection. The Tester is designed to meet IEC1010-1 standard and Stipulation of 2-Poulation Grade. The Tester conform to the European Union's following Requirement: CE regulation 89/336 (EMC Electromagnetic Compatibility).

The entire outer surface of the Tester case has been with thermo plastic elastomer, and the two testing pins has been gold-plated, so that it is reduce pin contact resistance and prevent to get rusty.

This operating instruction covers information on safety and caution, so please read relevant information carefully and observe all the warming and note strictly.

Check the Meter and accessories thoroughly before using the Meter. Contact your local distributor if the Meter or any components are damaged or malfunction.

Safety Note

The following safety notes should be observed prior to using This Tester and any associated accessory. Although the Tester do not used to measuring DC/AC Voltage or Current, but there are situations where hazardous condition may be present.

• Inspect the Tester case before using. Do not use damaged device.
• Inspect the Pin Holder and Pin gold-plated state.
• Do not attempt use the Tester as tweezers to prevent the pin tip from damage.
• Do not apply external voltage between the two pins.
• Do not used in the environment with explosive gas, vapor, or dust.

Never use the Tester on alive circuits.

Explanation Of Control And Indicators

Product Illustration

Push Buttons

[1] "FUNC": it is the function select key that acts trigger.

Use the Push Button as switch of Resistanc/ Capacitance/Diode/Continuity. The Tester is have not Power Key. When install the 3V Lithium Battery, the Tester immediately power ON.

Once powered on, the Tester will perform the Scanning Mode and then the 'SCAN' and ' - - - - ' sign is displayed on the LCD. This is indicate the Tester is inter to the auto scanning mode and will be automatically identify the resistor, capacitor, diode and continuity measurement mode.

The 'FUNC' Button is used to selecting some one measurement mode manually.

[2] "HOLD": Press "HOLD" Button to enter or exit the hold mode In any measurement mode. This key is act with trigger. In the data hold mode, the Tester stop updating LCD, stored current measuring data and displayed the measured data, and then holding the data until press the "HOLD" key once again.

Note: after auto power-OFF is active, pushing any of the push button can turn on the Tester again.

LCD Display

NO	Indicator	Meaning
1	SCAN	Auto Scanning Mode
2	AUTO	Auto Ranging
3		Data Hold
4		Diode checking Mode
5		Continuity Checking Mode
6	numF	Capacitance Units(nF, uF, mF)
7	MKΩ	Resistance Units(Ω, KΩ, MΩ)
8		Low Battery Indicator

Specification

General Feature

Electrical Specification

Function	Range	Best Resolution	Accuracy
Resistance	300Ω/3KΩ/ 30KΩ/300K /3MΩ 30MΩ	0.1Ω	±(1%rdg+ 2dgt) ±(1.2%rdg+ 3dgt)
Capacitance	3nF/30nF/300nF/ 3uF/30uF/ 300uF/3mF /30mF	1pF	±(2%rdg+ 3dgt) ±(3%rdg+ 3dgt)
Diode Check	Open Voltage: 2.8V Testing Current: 2mA
ContinuityCheck	When the resistance is less than 30Ω, the Buzzer is sounded.

Accessory:

1. Spare Test Pin: 2 pcs

Testing Operation

Scanning Mode

When install the 3V Lithium Battery, the Tester immediately power ON. In this case, the 'SCAN' and ' - - - - ' sign is displayed on the LCD. This is indicate the Tester is inter to the auto scanning mode and automatically identified the resistor, capacitor, diode and continuity, and then enter to the corresponding measurement mode.

In the Scanning Mode, when two pins are in touch with the object being measured, the measured value will be displayed on the LCD.

When measuring SMD device on the PCB, You must be
Disconnect power and discharge all high- voltage Capacitors.

Resistance Measurement

[1] Auto scanning Mode & Auto range:
300.0Ω - 3.000MΩ

[2] Selected Resistance measurement Mode by the "FUNC" key:
The range is extended to 30 MΩ, i.e.300.0Ω-30.00MΩ
When over load, the 'OL' symbol will be displayed on the LCD.

Capacitance Measurement

[1] Auto scanning & Auto range: 3.000nF - 300.0uF.

[2] Selected Capacitance Mode by the 'FUNC' key: The range is extended to 30.00mF, i.e.
3.000nF-30.00mF.

To avoid damage to the Meter or to the equipment under test, disconnect power and discharge all high-voltage capacitors before measurement capacitance.

Diode Check

You can selecting the Scanning Mode or the Diode Mode by The 'FUNC' push button.

Continuity Check

May selecting Scanning Mode or Continuity Mode by 'FUNC' push button.

When the resistance reading is less than 30Ω, the buzzer generates 2KHz beep to indicate continuity.

Maintenance

Replacing The Battery

When meter display , the battery must be replace to maintain normal operation.

1. Open the battery cover on the bottom case by screwdriver.
2. Remove old battery and snap new one into battery holder

Note:
Lithium Battery type: 3V CR2032

Cleaning

The meter can be cleaned with soft clean cloth to remove any oil, grease or grim.

Do not use liquid solvent or detergent.