Nhanganyaya
This manual provides instructions for the safe and effective operation of the BST-58F Digital Multimeter. This auto-ranging multimeter is designed for measuring AC/DC voltage, AC/DC current, resistance, capacitance, and frequency, featuring 4000 counts for precise readings. It is suitable for maintenance testing of various electronic products.
Product Features

Tsanangudzo yemufananidzo This image displays the BST-58F Digital Multimeter from the front and back, highlighting its general characteristics. The text on the image indicates 'Product Usage' and 'CHARACTERISTICS', stating that the product is used for maintenance testing of various electronic products, features a metal shielding plate, anti-magnetic and anti-interference performance, full protection, anti-high voltage ignition circuit design, and automatic gear position recognition for convenient operation.
- Automatic identification within 3 seconds for simplified operation.
- Data hold function to freeze readings on the display.
- Kudzima otomatiki simba remagetsi kuchengetedza hupenyu hwebhatiri.
- Yakaderera voltage display indicator.
- Anti-vibration design for durability.
- Streamlined design for comfortable handling.
- Large screen display for clear character visibility.
- Strong anti-interference capability.
- Full protection and anti-high voltage circuit design.
- Self-recovery fuse protection circuit.
- Isiri-Yekubatanidza Voltage (NCV) kuonekwa.
- Yechokwadi RMS kuyerwa kwekuverenga chaiko pane asiri-sinusoidal waveforms.
- Screen backlight for easy reading in low-light conditions.
- Flashlight lighting.
Safety Information
Kuti uve nechokwadi chekuti mita inoshanda zvakanaka uye inogadziriswa zvakanaka, tevera mirairo iyi:
- Read and understand all instructions and safety information in this manual before operating the meter.
- Usapfuure huwandu hwemapoinzi hunotsanangurwa pachiyero chega chega.
- Shandisa kungwarira paunenge uchishanda nevoltages pamusoro pe30V AC RMS, 42V peak, kana 60V DC. Aya voltages inokonzeresa njodzi.
- Gara uchibvisa ma "test leads" kubva mu "circuit" usati wachinja mashandiro kana kuti "ranges".
- Ongorora matinji ekuyedza kuona kana paine chinhu chakakuvara kana simbi yakafumuka. Tsiva kana yakakuvara.
- Usashandise mita kana ichiita seyakakuvadzwa kana kesi yakavhurwa.
- Ita shuwa kuti chivharo chebhatiri chakavharwa zvakachengeteka usati washanda.
- Do not use the meter in wet environments or in the presence of explosive gas or dust.
- When measuring current, ensure the meter is connected in series with the load and the circuit is de-energized before connecting.
Product Overview uye Zvikamu
Familiarize yourself with the components of your BST-58F Digital Multimeter.

Tsanangudzo yemufananidzo This image displays the BST-58F Digital Multimeter with various components labeled. Key labels include: LED light, Indicator light, Screen, Model, Case, Data Hold/Backlight button (H/*), NCV/LED button (NCV/B), Power/Capacitance button (O/H), Current Terminal (10A UNFUSED), COM terminal, and Voltage, Resistance, Capacitance, Continuity terminal (VΩ-4-). The screen shows "APO" indicating Auto Power Off.
- Sikirini Displays measurement readings and indicators.
- Chiedza che LED: For illumination.
- Chiedza chechiratidzo: Provides visual feedback.
- NCV/LED Button: Inoshanda neNon-Contact Voltage detection and LED light.
- H/* Button: Activates Data Hold and Backlight functions.
- O/H Button: Power On/Off and function selection.
- Current Terminal (10A UNFUSED): Zvinodiwa pakuyera simba remagetsi rakawanda.
- COM Terminal: Zvakajairwa (negative) kuisa muzviyero zvese.
- VΩ-4- Terminal: Input yevoltage, resistance, capacitance, and continuity measurements.
Gadzirira
Kuiswa kweBattery
The BST-58F multimeter requires 2 x 1.5V AAA batteries for operation. To install or replace batteries:
- Iva nechokwadi chekuti multimeter yadzimwa uye bvisa ma lead ese ekuyedza.
- Tsvaga chivharo chebhatiri kuseri kwemudziyo.
- Shandisa screwdriver kuvhura kamuri yebhatiri.
- Isa mabhatiri maviri e1.5V AAA, uchicherechedza polarity chaiyo (+ na -).
- Tsiva chivharo chekamuri yebhatiri uye chengetedza nescuru.
Kubatanidza Miedzo Inotungamira
Always connect the black test lead to the COM terminal. Connect the red test lead to the appropriate input terminal based on the measurement type:
- For Voltage, Resistance, Capacitance, and Continuity: Connect the red lead to the VΩ-4- terminal.
- For Current (up to 10A): Connect the red lead to the 10A UNFUSED terminal.
Operating Instruction
Powering On/Off and Automatic Identification

Tsanangudzo yemufananidzo This image illustrates the power-on process and automatic measurement function. The left panel shows the multimeter off, with text "1: Long press the yellow button to start the device". The right panel shows the multimeter with test leads connected, indicating "2: Automatic measurement of gear position". The screen displays "APO" and "HOLD" indicators.
- To power on the device, long press the yellow O/H button. The multimeter will automatically identify the measurement type (voltage, resistance, continuity) within 3 seconds when test leads are connected to a circuit.
- The multimeter features an automatic power-off function to save battery.
Isiri-Yekubatanidza Voltage (NCV) Test

Tsanangudzo yemufananidzo This image shows the multimeter's NCV (Non-Contact Voltage) test feature. The text "NCV Non-contact Test" is prominent, with an arrow pointing to the NCV sensing area at the top of the device. The screen shows "APO" and the NCV/B button is visible.
To perform a Non-Contact Voltage bvunzo:
- Long press the NCV/B button to enter induction mode.
- Move the NCV sensing area (located at the top of the multimeter) close to the conductor being tested.
- Iyo multimeter inoratidza kuvepo kwe AC voltagkuburikidza nekurira kunonzwika uye/kana chiratidzo chinoonekwa.
Data Bata uye Backlight
Press the H/* button briefly to activate the Data Hold function, which freezes the current reading on the display. Press it again to release. Long press the H/* button to turn the screen backlight on or off for improved visibility in dark environments.
General Measurement Principles
The BST-58F automatically identifies the measurement type. Ensure test leads are correctly connected for the desired measurement.
- Voltage Kuyera (AC/DC): Connect leads in parallel with the circuit.
- Chiyero Chazvino (AC/DC): Connect leads in series with the circuit. Ensure the circuit is de-energized before connecting.
- Resistance Chiyero: Ensure the circuit is de-energized before measuring resistance. Connect leads across the component.
- Capacitance Measurement: Ensure the capacitor is discharged before measuring.
- Frequency Kuyera: Connect leads to the signal source.
- Continuity Test: For checking circuit continuity. An audible beep indicates continuity.

Tsanangudzo yemufananidzo This image displays the multimeter and lists its key measurement capabilities: 1KHz True RMS, NCV induced voltage, AC and DC current, AC and DC voltage, Zero fire line identification, and Resistance on and off. It also shows icons for various measurement types like voltage, current, frequency, and diode test, indicating the multimeter's versatility.
Maintenance
Kuchenesa
Pukuta mita yacho neadamp cloth and mild detergent. Do not use abrasives or solvents. Keep the terminals free of dirt and moisture.
Kutsiviwa kwebhatiri
When the low battery indicator appears on the display, replace the batteries as described in the "Battery Installation" section under Setup. Remove batteries if the meter is not used for an extended period.
Storage
Store the multimeter in a cool, dry place, away from direct sunlight and extreme temperatures. The recommended storage environment is -20°C to 60°C with humidity less than 80%.
Kugadzirisa matambudziko
| Dambudziko | Zvinogona Kukonzera | Solution |
|---|---|---|
| Chiyero chemita hachibatidzi. | Mabhatiri akafa kana kuti akaiswa zvisirizvo. | Tarisa polarity yebhatiri, tsiva mabhatiri. |
| Hapana kuverenga kana "OL" kunoratidzwa. | Open circuit, out of range, or incorrect function/lead connection. | Check circuit, ensure correct function selected, verify lead connections. |
| Kurava kusina kururama. | Low battery, dirty test leads/terminals, external interference. | Replace batteries, clean leads/terminals, move away from strong electromagnetic fields. |
| Auto power-off too quickly. | Normal operation (default setting). | Engage in a measurement or press a button to reset the timer. |
Zvinotsanangurwa
The following tables detail the technical specifications and measurement ranges of the BST-58F Digital Multimeter.

Tsanangudzo yemufananidzo This image shows a table of general product parameters for the BST-58F multimeter. It lists: Product number (BST-58F), LCD (4000word), Range (automatic), Material (ABS-PCV), Sampling rate (3 times/sec), True RMS (✓), Data retention (✓), Screen backlight (✓), Flashlight lighting (✓), Low battery prompt (✓), Automatic shut-down (✓). Under "parameter", it lists: product weight (133g), Product Size (126*61*28mm), power supply (1.5V AAA battery*2), working environment (Temperature 0~40°C, Humidity <75%), Storage environment (Temperature -20~60°C, Humidity <80%).
| Parameter | Value |
|---|---|
| Product Number | BST-58F |
| Display | LCD ye4000 Counts |
| Ranging | Automatic |
| Material | ABS-PCV |
| Sampling Rate | 3 nguva/sec |
| Chokwadi RMS | Ehe |
| Kuchengeta Data | Ehe |
| Chidzitiro Backlight | Ehe |
| Tochi | Ehe |
| Low Battery Prompt | Ehe |
| Otomatiki Shut-pasi | Ehe |
| Product Weight | 133g |
| Kukura Kwechigadzirwa | 126 x 61 x 28mm |
| Magetsi | 2 x 1.5V AAA bhatiri |
| Nzvimbo Yekushanda | 0~40°C, Humidity <75% |
| Nzvimbo Yekuchengetedza | -20~60°C, Humidity <80% |
Measurement Ranges uye Kururama:

Tsanangudzo yemufananidzo This image presents a table outlining the functions, ranges, and accuracy of the BST-58F multimeter. It includes specifications for DC voltage (4V/40V/400V/500V, ±(0.5%+3)), AC voltage (4V/40V/400V/500V, ±(1.0%+3)), DC current (999.9mA/9.999A, ±(2.0%+4)), AC current (999.9mA/9.999A, ±(1.0%+3)), Resistance (4Ω/40Ω/400Ω, ±(1.5%+3); 4kΩ/40kΩ/400kΩ, ±(0.5%+3); 4MΩ/40MΩ, ±(1.5%+3)), Capacitance (20nF/200nF, ±(10%+40); 2uF/20uF/200uF, ±(2.5%+20); 2000uF, ±(5%+10)). It also indicates "On and off" and "NCV detection" with checkmarks. The frequency response in AC mode is 40Hz~1kHz.
| Function | Range | Kururama |
|---|---|---|
| DC Voltage | 4V/40V/400V/500V | ± (0.5%+3) |
| AC Voltage | 4V/40V/400V/500V | ± (1.0%+3) |
| DC Nhasi | 999.9mA/9.999A | ± (2.0%+4) |
| AC Yazvino | 999.9mA/9.999A | ± (1.0%+3) |
| Resistance | 4Ω/40Ω/400Ω | ± (1.5%+3) |
| 4kΩ/40kΩ/400kΩ | ± (0.5%+3) | |
| 4MΩ/40MΩ | ± (1.5%+3) | |
| Capacitance | 20nF/200nF | ± (10%+40) |
| 2uF/20uF/200uF | ± (2.5%+20) | |
| 2000uF | ± (5%+10) | |
| On and off (Continuity) | Ehe | - |
| Kuonekwa kweNCV | Ehe | - |
| Frequency response in AC mode: 40Hz~1kHz | ||
Warranty uye Support
Specific warranty information for this product is not provided in the available documentation. For warranty claims or technical support, please refer to the retailer or manufacturer's contact information provided at the point of purchase.