User Manual

ManualsBrandsAOPUTTRIVER ManualsElectricalDigital Pen Multimeter AP-38B Handheld LCD Backlight Display, AC/DC Voltage Meter Resistance Tester 2000 Counts for measuring Voltmeter Resistance Diode tester with Data Hold, Backlight

PEN TYPE DIGITAL MULTIMETER

OPERATOR’S MANUAL

1. Overview

The pen type digital multimeter is characterized at slim size,

portable, stable performance and anti-dropping capacity. Using

2000 counts digit LCD monitor with character 12mm high, they

offer clear readings. With overall circuitry design centering on

large-scale IC A/D converters in conjunction and over-load

protection circuit, the meters give excellent performance and

exquisite making as a handy utility instrument.

The meters can be used to measure DC & AC voltage, resistance,

positive diode voltage fall and audible continuity. If the equipment

is used in a manner not specified by the manufacturer, the

protection provided by the equipment may be impaired.

2. Panel Layout

1. VΩ: V/ Input test lead.

2. Lamp light.

3. Test lead fixture: Fix the COM test lead.

4. LCD display: 3 1/2 digits LCD display, full function symbol

display.

5. Toggle Switch: Use this switch to select functions and ranges.

6. HOLD key: Press the “HOLD” key to lock display value, and the

“DH” sign will appear on the display, press it again to exit.

7. Key: Press the “ ” key over 2 seconds to light the back light,

press it again for more than 2 seconds to lights off it, it can lights

off automatically after 15 seconds too.

8. SELECT key: This key work on the " " range, press the

key to choose resistance, diode or continuity test, on the voltage

range, change to DC or AC.

9. Protective casing.

10. Battery cover.

11. COM: COM input test lead.

3. Safety Information

3-1 The meter is designed according to IEC-1010 concerning

electronic measuring instruments with an over-voltage category

600V (CAT Ⅲ) and pollution 2.

3-2 Follow all safety and operating instructions to ensure that the

meter is used safely and is kept in good operating condition.

3-3 safety symbols:

Important safety information, refer to the operating manual.

Dangerous voltage may be presence.

Double insulation (protection Class II)

4. Special Cautions for Operation

4-1 To avid risk of electric shock, do not use the meters before the

cover is in place.

4-2 The toggle switch should be right position for the testing.

4-3 To avoid electric shock and damaging the instruments, the

input signals are forbidden to exceed the specified limits.

4-4 When measuring TV set or switched power, attention should

be paid to the possible pulses that may bring destruction to the

circuit.

4-5 Toggle switch position is forbidden to be changed at random

during measurement.

4-6 Take caution against shock in the course of measuring voltage

higher than DC 60V & AC 30V.

4-7 After operation is finished, set toggle switch at OFF to save

battery power.

4-8 If the meter is without usage for long time, take out battery to

avoid damage by battery leakage.

5. GENERAL SPECIFICATIONS

5-1 Max Voltage between input terminal and Earth Ground: CAT Ⅲ

600V.

5-2 Over-range Indication: display “OL” for the significant digit.

5-3 Automatic display of negative polarity “-”.

5-4 Low Battery Indication: “ ” displayed.

5-5 Display: 3 1/2 digit LCD with a max. reading of 1999.

5-6 Auto range control.

5-7 Auto Power Off: When measurement exceeds 15 minutes

without switching mode and pressing key, the meter will switch

to standby mode. Press any key to exit standby mode.

5-8 Power supply: 1.5V×2 “AAA” R03P battery

5-9 Operating Temp.: 0℃ to 40℃ (relative humidity <85%)

5-10 Storage Temp.: -10℃ to 50℃ (relative humidity <85%)

5-11 Guaranteed precision Temp.: 23±5℃

(relative humidity <70%)

5-12 Dimension: 235 x 54 x 30mm

5-13 Weight: approx. 200g (including battery)

6. Testing Specifications

Accuracy is specified for a period of year after calibration and at

18℃ to 28℃ (64℉ to 82℉) with relative humidity to 70%.

6-1 DC Voltage

Range

Resolution

Accuracy

200mV

0.1mV

±(0.5% of rdg + 2 digits)

1mV

20V

10mV

200V

100mV

600V

±(0.8% of rdg + 2 digits)

-- Impedance: 10MΩ, More than 100MΩ on 200mV range

-- Overload protection: 600V DC or AC rms

6-2 AC Voltage

Range

Resolution

Accuracy

1mV

±(0.8% of rdg + 3 digits)

20V

10mV

200V

100mV

600V

±(1.2% of rdg + 3 digits)

-- Impedance: 10MΩ

-- Overload protection: 600V DC or AC rms

-- Frequency Range: 40 to 400Hz

-- Response: average, calibrated in rms of sine wave

6-3 Resistance

Range

Resolution

Accuracy

200Ω

0.1Ω

±(1.0% of rdg + 3 digits)

2kΩ

1Ω

±(1.0% of rdg + 2 digits)

20kΩ

10Ω

200kΩ

100Ω

2MΩ

1kΩ

20MΩ

10kΩ

±(1.5% of rdg + 3 digits)

-- Overload protection: 600V DC or AC rms

6-4 Diode and Audible continuity test

Range

Description

Test Condition

Display read

approximately

forward voltage of

diode

Forward DC current

approx. 0.4mA

Reversed DC voltage

approx. 1.5V

Built-in buzzer

sounds if resistance

is less than 50Ω

Open circuit voltage

approx. 0.5V

-- Overload protection: 600V DC or AC rms

7. OPERATING INSTRUCTIONS

7-1 Attention before operation

Summary of content (2 pages)

PAGE 1
PEN TYPE DIGITAL MULTIMETER OPERATOR’S MANUAL 1. Overview The pen type digital multimeter is characterized at slim size, portable, stable performance and anti-dropping capacity. Using 2000 counts digit LCD monitor with character 12mm high, they offer clear readings. With overall circuitry design centering on large-scale IC A/D converters in conjunction and over-load protection circuit, the meters give excellent performance and exquisite making as a handy utility instrument.
PAGE 2
7-1-1 Check battery. When the battery voltage drop below proper operation range, the “ ” symbol will appear on the LCD display and the battery need to changed. 7-1-2 Pay attention to the “ ” besides the input jack which shows that the input voltage should be within the specified value. 7-1-3 The toggle switch should be positioned to desired range for measurement before operation.