FMF Supply
SZBJ BM3548 1000V Digital Insulation Tester Multimeter
SZBJ BM3548 1000V Digital Insulation Tester Multimeter
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SZBJ BM3548 1000V Digital Insulation Tester Multimeter
The BM3548 is a portable digital insulation resistance tester and multimeter for electrical inspection, maintenance and troubleshooting. It combines 250V, 500V and 1000V insulation test ranges with everyday multimeter functions for AC/DC voltage, AC/DC current, resistance, capacitance, frequency, diode check and continuity buzzer testing.
The product photos show the SZBJ BM3548 front panel with a backlit LCD, TEST/STOP button, RANGE button, DH/BL data-hold/backlight button, SELECT button, rotary function selector and four input terminals marked L, V/ohm/mA/Hz/CAP, COM/G and E. Photos also show the protective case, test leads, clips, strap and user manual beside the meter.
Key Features
- 2-in-1 digital insulation resistance tester and digital multimeter.
- Selectable insulation test voltages: 250V, 500V and 1000V.
- Insulation resistance range listed as 200k ohm to 40G ohm.
- Auto range multimeter operation with overload indication.
- 3 3/4 digit display with maximum display of 3999 in the product listing.
- Backlight and data hold function for easier reading during field work.
- Continuity buzzer and diode test functions.
- Panel calibration function listed in the product data.
Specifications
| Brand shown on product | SZBJ |
| Model | BM3548 |
| Product type | Digital insulation tester and multimeter |
| Insulation test voltage | 250V / 500V / 1000V |
| Insulation resistance range | 200k ohm to 40G ohm |
| Insulation resistance accuracy | 200k ohm to 200M ohm: +/-3% +/-5; 200M ohm to 4G ohm: +/-5% +/-5; 4G ohm to 40G ohm: +/-10% +/-5 |
| Short-circuit current | 1.5mA |
| Measurement time | 1 / 2 / 10 minutes |
| DC voltage range | 400mV / 4V / 40V / 400V / 1000V |
| AC voltage range | 4V / 40V / 400V / 700V |
| DC current range | 40mA / 400mA |
| AC current range | 40mA / 400mA |
| Resistance range | 400 ohm / 4k / 40k / 400k / 4M / 40M ohm |
| Capacitance range | 40nF / 400nF / 4uF / 40uF |
| Frequency range | 40Hz / 400Hz / 4kHz / 40kHz / 400kHz / 4MHz |
| Display | Backlit LCD; 3 3/4 digit, max 3999 display in listing |
| Power supply | 6 x AA 1.5V batteries |
| Size | 170 x 156 x 64 mm |
| Listed weight | About 650 g including battery |
| SKU | FMF-BM3548-13657 |
Typical Uses
- Insulation resistance checks on cables, motors, transformers, switches and electrical equipment.
- Maintenance and troubleshooting where insulation testing and multimeter measurements are both needed.
- AC/DC voltage and current checking within the listed meter ranges.
- Continuity, diode, resistance, capacitance and frequency checks during electrical inspection.
Selection Notes
- Choose this model when you need a 250V/500V/1000V insulation tester with built-in digital multimeter functions.
- Use only the insulation test ranges shown for this product and confirm the test requirement before ordering.
- Product photos show a case, user manual, test leads, clips and strap beside the meter. Confirm exact included accessories before ordering if accessories are critical.
- The meter uses high voltage during insulation testing. Follow the user manual and disconnect from live circuits before insulation testing.
FAQ
What insulation test voltages does the BM3548 support?
This listing supports 250V, 500V and 1000V insulation test voltage ranges.
What is the maximum insulation resistance range?
The listed insulation resistance range is 200k ohm to 40G ohm.
Can it also work as a multimeter?
Yes. The BM3548 includes digital multimeter functions for AC/DC voltage, AC/DC current, resistance, capacitance, frequency, diode check and continuity buzzer testing.
