BTMETER BT-90EPD Bluetooth APP Digital Multimeter

1. Rhagymadrodd

The BTMETER BT-90EPD Auto-Ranging Digital Multimeter is designed for troubleshooting electrical problems in a wide array of industrial and household devices. It is compact, lightweight, durable, and easy to operate. This multimeter can measure AC/DC current, AC/DC voltage, resistance, continuity, transistor, and diodes with high accuracy. It features Bluetooth connectivity for real-time data transmission to mobile phones (iOS & Android) and allows data export to Excel files. The device is CATIV 600V / CATIII 1000V certified for safety.

Key features include an auto-backlit LCD display for dark environments, attachable test leads, a stand for hands-free use, and protective rubber corner guards for drop protection.

2. Cynnwys Pecyn

Wrth agor y pecyn, gwiriwch fod yr holl eitemau a restrir isod yn bresennol ac mewn cyflwr da:

• 1x BTMETER BT-90EPD Digital Multimeter
• 1x 9V (6F22) Battery (Pre-installed)
• 1x Pair of High-Quality Test Leads (Red and Black)
• 1x Temperature Probe
• Llawlyfr Defnyddiwr 1x
• Achos Cario 1x

Image: Contents of the BTMETER BT-90EPD package.

3. Cynnyrch Drosview a Rheolaethau

Familiarize yourself with the components and controls of your BT-90EPD multimeter.

Image: Front panel of the BT-90EPD multimeter with labeled controls and input jacks.

• Arddangosfa LCD: Yn dangos darlleniadau mesur, unedau a dangosyddion swyddogaeth.
• Allwedd DEWIS: Toggles between different measurement modes within a rotary switch position (e.g., AC/DC voltage, deuod/parhad).
• Allwedd HOLL: Yn rhewi'r darlleniad arddangos cyfredol. Pwyswch eto i ryddhau.
• RANGE Key: Switches between auto-ranging and manual ranging modes.
• REL Key: Activates the relative measurement function, displaying the difference from a stored reference value.
• Hz/% Key: Toggles between frequency and duty cycle measurements.
• Switsh Rotari: Selects the primary measurement function (e.g., Voltage, Current, Resistance, Temperature).
• CDS Sensor: Light sensor for automatic backlight control.
• Jaciau Mewnbwn:
• VHzΩ+))|-- Input Jack: Ar gyfer cyftage, frequency, resistance, continuity, and diode measurements.
• COM and Temperature '-' Input Jack: Common terminal for all measurements and negative input for temperature.
• µAmA/BATT and Temperature '+' Input Jack: For microampere, milliampere, battery test, and positive input for temperature.
• Jac Mewnbwn 20A: For high current (up to 20A) measurements.

4. Gosod

4.1. Gosod Batri

The BT-90EPD comes with a pre-installed 9V (6F22) battery. If replacement is needed:

1. Gwnewch yn siŵr bod y multimedr wedi'i ddiffodd a bod y gwifrau prawf wedi'u datgysylltu.
2. Lleolwch yr adran batri ar gefn yr uned.
3. Dadsgriwiwch y sgriw(iau) cadw a thynnwch glawr y batri.
4. Carefully remove the old battery and replace it with a new 9V (6F22) battery, observing polarity.
5. Rhowch glawr y batri yn ôl a'i sicrhau gyda'r sgriw(iau).

Image: Back of the BT-90EPD multimeter showing battery compartment access.

4.2. Cysylltu Gwifrau Prawf

Always connect the black test lead to the COM jack. Connect the red test lead to the appropriate input jack based on the measurement type:

• Am Voltage, Resistance, Frequency, Duty Cycle, Diode, and Continuity measurements, connect the red lead to the VHzΩ+))|-- jac.
• For microampere (µA), milliampere (mA), and Battery tests, connect the red lead to the µAmA/BATT jac.
• For high current (up to 20A) measurements, connect the red lead to the 20A jac.

5. Cyfarwyddiadau Gweithredu

5.1. Mesuriadau Sylfaenol

To perform basic measurements:

1. Turn the rotary switch to the desired function (e.g., V~ for AC Voltage, V- ar gyfer Cyfrol DCtage, Ω for Resistance).
2. Connect the test leads to the appropriate input jacks and then to the circuit or component under test.
3. Darllenwch y gwerth mesur ar yr arddangosfa LCD.

Image: Measuring resistance with the BT-90EPD multimeter.

5.2. Mesur Tymheredd

I fesur tymheredd:

1. Turn the rotary switch to the Temperature (℃/℉) function.
2. Connect the temperature probe to the COM (negative) and µAmA/BATT and Temperature '+' (positive) jacks.
3. Place the tip of the temperature probe on or in the object whose temperature is to be measured.
4. Read the temperature value on the LCD display. Use the SELECT button to toggle between Celsius and Fahrenheit if available.

Image: Measuring liquid temperature using the BT-90EPD multimeter and its probe.

5.3. Battery Testing (1.5V~12V)

To test battery voltage:

1. Trowch y switsh cylchdro i'r BATT function (usually combined with µA/mA).
2. Cysylltwch dennyn y prawf du â'r COM jac a'r gwifren brawf goch i'r µAmA/BATT jac.
3. Connect the red test lead to the positive terminal of the battery and the black test lead to the negative terminal.
4. Darllenwch y batri voltage ar yr arddangosfa LCD.

Image: Testing a 9V battery with the BT-90EPD multimeter.

5.4. Bluetooth App Connection and Data Logging

The BT-90EPD can connect to your smartphone for remote monitoring and data logging.

1. Download the 'iMultimeter' app from your mobile phone's app store (iOS/Android). You can find the app via this link: iMultimeter App.
2. Sicrhewch fod Bluetooth wedi'i alluogi ar eich ffôn clyfar.
3. Turn on the BT-90EPD multimeter.
4. Open the 'iMultimeter' app on your phone and follow the in-app instructions to connect to your device.
5. Once connected, you can remotely monitor measurements, log data, view on-screen graphs, and export data in EXCEL or TXT files.

Image: Screenshots of the iMultimeter mobile application interface.

5.5. Auto Backlight Display

The multimeter features an auto-backlight display that senses ambient brightness and automatically turns the backlight ON or OFF, improving readability in various lighting conditions without manual intervention.

5.6. Dal Data

Gwasgwch y DALWCH button to freeze the current reading on the display. This is useful for recording measurements in situations where it's difficult to view the display directly. Press DALWCH again to resume live readings.

5.7. Relative Value Measurement

Mae'r REL function allows you to measure a value relative to a stored reference value. Press the REL button to store the current reading as a reference. Subsequent measurements will display the difference from this reference. Press REL again to exit relative mode.

6. Gwybodaeth Diogelwch

To ensure safe operation and avoid damage to the meter, observe the following safety precautions:

• Always ensure the multimeter is set to the correct function and range before making a measurement.
• Peidiwch byth â gwneud cais cyftage or current that exceeds the maximum rated input for any function.
• Byddwch yn ofalus iawn wrth weithio gyda chyftaguwchlaw 60V DC neu 30V AC RMS, gan fod y rhain yn peri perygl sioc.
• Peidiwch â defnyddio'r mesurydd os yw'n ymddangos ei fod ef neu'r gwifrau prawf wedi'u difrodi.
• Ensure the test leads are fully seated in the input jacks.
• Disconnect the test leads from the circuit before changing functions or ranges.
• Amnewidiwch y batri ar unwaith pan fydd y dangosydd batri isel yn ymddangos i sicrhau darlleniadau cywir.
• Adhere to all local and national safety codes.

7. cynnal

7.1. Glanhau

Sychwch yr achos gyda hysbysebamp cloth and mild detergent. Do not use abrasives or solvents. Periodically clean the input jacks with a cotton swab and alcohol to prevent poor contact from dirt or moisture.

7.2. Amnewid Batri

Refer to Section 4.1 for instructions on replacing the 9V battery when the low battery indicator is displayed.

7.3. Amnewid Ffiws

If the current measurement function fails, the fuse may need replacement. Fuse replacement should only be performed by qualified personnel. Refer to the specifications for the correct fuse type and rating.

8. Datrys Problemau

If the multimeter does not function correctly, check the following:

• Dim arddangosfa neu arddangosfa wan: Gwiriwch y batri. Amnewidiwch ef os oes angen.
• Darlleniadau anghywir:
• Ensure test leads are correctly connected to the appropriate input jacks.
• Verify the rotary switch is set to the correct measurement function and range.
• Check for damaged test leads.
• Mesur cerrynt ddim yn gweithio: Gwiriwch y ffiws.
• Problemau cysylltiad Bluetooth:
• Ensure Bluetooth is enabled on your phone and the multimeter.
• Restart both the multimeter and the phone app.
• Ensure the phone is within the specified range (32.8 ~ 49.2 ft).

9. manylebau

10. Gwarant a Chefnogaeth

BTMETER products are designed for reliability and performance. For warranty information or technical support, please refer to the documentation included with your purchase or contact BTMETER customer service directly. Contact details can typically be found on the official BTMETER websafle neu drwy eich manwerthwr.