Axio MET AX-201 Manual de usuario

Pen probe style autorange digital

multimeter

AX-201

Owners manual

WARRANTY

This instrument is warranted to be free from defects in material and workmanship for a period of one

Lear. Any instrument found defective within one year from the delivery date and returned to the factory

with transportation charges prepaid, will be repaired, adjusted, or replaced at no charge to the original

purchaser. This warranty does not cover expandable items such as batteries or fuses. If the defect has

been caused by a misuse or abnormal operating conditions, the repair will be billed at a nominal cost.

AFETY INFORMATION

The digital multimeter has been designed according to I C-61010 concerning electronic measuring

instruments with a measurement category(CAT II 600V) and Pollution degree 2.

WARNING

To avoid possible electric shock or personal injury, follow these guidelines:

a. Do not use the meter if it is damage. Before you use the meter, inspect the case. Pay particular

attention to the insulation.

b. Inspect the test lead for damage insulation or exposed metal. Check the test lead and test probe

for continuity. Replace damage test lead before you use the meter.

c. Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt,

have the meter serviced.

d. Do not operate the meter around explosive gas, vapor or dust.

e. Do not apply more than the rated voltage, as marked on the meter, between terminals or

between any terminal and earth ground.

f. Before use, verify the meter’s operation by measuring a known voltage.

g. When measuring current, turn off circuit power before connecting the meter to the circuit.

Remember to place the meter in series with the circuit.

h. When servicing the meter, use only specified replacement parts.

i. Use caution when working above 30V ac rms, 42V peak, or 60V dc. Such voltages pose a shock

hazard.

j. When using the probes, keep your fingers behind the finger guards. Never use hand or skin to

touch the probes and any live conductor.

k. When making connections, connect the test lead before you connect the test probe. When you

disconnect them, disconnect the test probe first.

l. Remove the test lead and test probe from the circuit under test before you open the case or

battery door.

m. Do not operate meter with the battery door, portions of the case or the test probe removed or

loosened.

n. To avoid false readings, which could lead to possible electric shock or personal injury,

replace the battery as soon as the low battery indicator ( ) appears.

o. Remaining endangerment: When an input terminal is connected to dangerous live potential it is

to be noted that this potential at all other terminals can occur!

p. CATII-measurement Category II is for measurements performed on circuits directly connected to

low voltage installation. ( xamples are measurements on household appliances, portable tools and

similar equipments.) Do not use the meter for measurements within Measurement Categories III and

IV.

Caution:

To avoid possible damage to the meter or to the equipment under test, follow these guidelines:

•Disconnect circuit power and discharge all capacitors before testing resistance, diode or

continuity.

•Use the proper function, and range for your measurements.

•Before measuring current, check the meter’s fuse and turn off the power to the circuit before

connecting the meter to the circuit.

•Before rotating the function switch to change functions, disconnect the probes from the circuit

under test.

•Remove the probes from the circuit under test before opening the case or the battery cover.

GENERAL DE CRIPTION

This meter is a compact 3 ½-digit autorange digital multimeter for measuring DC and AC voltage,

DC and AC current, resistance, diode, continuity and logic level. It has the functions of polarity

indication, data hold, overrange indication, backlight, auto power-off, and flashlight. It can be

operated easily and is an ideal measurement tool.

YMBOL

AC (Alternating Current)

DC (Direct Current)

DC or AC (alternating current or direct current)

Caution, risk of danger, refer to the operating manual before use.

Caution, risk of electric shock

arth (ground) Terminal

Fuse

Conforms to uropean Union directives

The equipment is protected throughout by double or reinforced insulation

Diode

Continuity test

Low battery

LOGIC Logic level test

AUTO Autorange

PECIAL MARK

For your safety, there are some marks on the panel.

Be cautioious.

The max.

voltage the meter can measure is 600V DC or AC. The max.

current the meter can measure is 200mA DC or AC

The meter complies with CAT II 600

FEATURE

Dsiplay: 3 ½ - digit LCD with a max. reading of 1999

Polarity: Auto polarity indication

Overrange Indication: “OL” shown on the display

ampling Rate: About 3 times/sec.

Battery: 9V, 6F22 or equivalent

Low Battery Indication: “ ” show on the display

Operating condition: 0~40°C, relative humidity: 75%

torage condition: -20-60°C, relative humidity: <85%

ize: 230x57x30mm

Weight: about 182g (including battery)

PECIFICATION

Accuracy is specified for a period of one year after calibration and at 23±5°C with relative humidity

up to 75%. Accuracy specifications take the form of:

±([% of reading]+[number of Least Significant Digits])

Function Range Resolution

200mV ±(0.5% + 2)

2V-20V-200V ±(0.7% + 2)

600V ±(0.8% + 2)

2V ±(0.8% + 3)

20V-200V ±(1.2% + 3)

600 ±(1.5% + 3)

200Ω ±(1.2% + 3)

2kΩ,20kΩ.200kΩ, 2MΩ ±(1.0% + 2)

20MΩ ±(2.0% + 2)

Open circuit voltage ≈ 1.5V;

Test current ≈ 0.5mA

20mA ±(1.2% + 3)

200mA

20mA ±(1.5% + 5)

200mA

If R <about 50Ω, the built0in buzzer sounds

IN TRUCTION

1. Display

3 ½ digits LCD with max. reading 1999

2. Buton

To enable the flashlight function, Press and hold down this button.

3. Button

To hold the present reading on the display, press this button, will appears as an indicator.

To exit the Hold mode, just press this button again, “ ” will disappears.

This button can also be used to arouse the meter from Sleep.

4. Function witch

The switch is used for selecting the desired function. To preserve the battery’s life, set the switch

to “OFF” position when the meter is not in use.

5. Test Probe

Input probe (positive polarity) for the following teste: voltage, resistance, current (<200mA) and

diode.

6. Flashlight LED

It is used for illumination.

7. Button

This button can be used to switch the meter between the following measurement functions:

DC voltage/AC voltage; DC current/AC current; diode/continuity.

8. Button

To turn on or off the backlight, press and hold down this button for about 1 second. The backlight

will turn off automatically about 15 seconds later after it is turned on.

9. Probe of the Black Test Lead (negative)

10. Black Test Lead

OPERATION IN TRUCTION

Measuring DC Voltage

•Set the function switch to position,

•Press the button to select DC range, the display shows .

•Connect the test probe and black test lead across the source or load to be measured.

•The display will show the reading and the polarity of the test probe connection.

Note:

Input impedance: about 10MΩ

The max. permitted input voltage: 600Vdc

Measuring AC Voltage

•Set the function switch to position,

•Press the button to select AC range, the display shows

•Connect the test probe and black test lead cross the source or load to be measured.

•The display will show the reading.

Note:

Input impedance: about 10MΩ

Frequency: 40Hz~400Hz

The max. permitted input voltage: 600Vac

Measuring DC Current

•Set the function switch to position

•Press the button to select DC range, the display show

•Connect the test probe and the black test lead in series with the circuit to be measured.

•The display will show the reading and the polarity of the test probe connection.

Note:

The max. permitted input current is 200mA, overcurrent will cause blowing to the fuse.

Measuring AC Current

•Set the function switch to position.

•Press the button to select AC range, the display shows

•Connect the test probe and the black test lead on series with the circuit to be measured.

•Read the reading on the display.

Note:

The max. permitted input current is 200mA, overcurrent will cause blowing to the fuse.

Frequency: 40Hz~400Hz

Measuring Resistance

•Set the function switch to Ω position.

•Connect the test probe and the black test lead across the load to be measured.

•Read the reading on the LCD

Note:

If the resistance is more than 1MΩ, it may take several seconds to stabilize the reading. It is normal

for high resistance measurement.

If the probes are open, overload indication will be shown on the display.

Disconnect circuit power and discharge all capacitors before testing resistance.

Measuring Diode

•Set the function switch to position.

•Press the button to make the display show

•Connect the test probe to the anode of the diode, the black test lead to the cathode of the diode.

•Read the approximate forward voltage on the LCD.

Audible Continuity

•Set the function switch to position.

•Press the button to make the display show

•Connect the test probe and the test lead cross the circuit to be measures.

•If the resistance is less than about 50Ω, the built-in buzzer will sound.

Note:

When the resistance is between 50Ω and 120Ω, the buzzer may sound or may not sound. When the

resistance is more than 120Ω, the buzzer will not sound.

Measuring Logic Level (TTL)

•Set the function switch to LOGIC position.

•Connect the black test lead to the ground terminal of the circuit to be measured, the test probe

to the desired test point of the circuit.

•If the level of the test point is more than or equal to 2.3±0.2V, the LCD will show and the

voltage value, meanwhile the meter will sound discontinuously.

•If the level of the test point is less than or equal to 0.8±0.2V, the LCD will show and the

voltage value, meanwhile the meter will sound continuously.

•If the probes are open, the LCD will show a TTL logic level’s approximate midvalue: 1.0~1.4V.

Auto Power off

If the meter is not operated for about 15 minutes, it will turn off automatically and stay in Sleep

mode.

To arouse the meter from Sleep, turn the function switch or press the button.

BATTERY REPLACEMENT

When the symbol appears on the display, it indicates that the battery is low. To replace the

battery, remove the screw from the battery cover, replace the exhausted battery with a new

battery of the same type. Reinstall the battery cover and reinstall the screw.

Note:

Before replacing battery, set the function switch to OFF position.

FU E REPLACEMENT

Fuse rarely needs replacement and is blown almost always as a result of operator’s error. The meter

uses a fuse with specified ratings: F 250mA L 250V

To replace the meter’s fuse:

•Set the function switch to OFF position.

•Remove the battery door (“c”)

•Remove the “a” part by turning it.

•Remove the back cover’s screws, then remove the back cover (“b”).

•Remove the fuse by gently prying one end loose, then slide the fuse out of its bracket.

•Install a new fuse of the specified ratings.

•Reinstall the back cover, battery door the “a” part and all the screws.

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