The Brymen user manual provides safety warnings, operation instructions, and specifications for the BM821, BM822, BM827, BM829, BM521, and BM525 digital…
This manual outlines safety requirements for indoor use of Brymen digital multimeters, including double‑insulation protection, warnings about moisture, high voltage exposure, and proper handling of test leads. It also describes the measurement categories for voltage, current and resistance, ensuring users select the correct CAT rating for their work environment.
The document details the multimeter’s functions such as AutoCheck™ mode, dual‑display 4‑digit resolution, various measurement modes (voltage, current, resistance, continuity, temperature, frequency, duty cycle, etc.), and provides accuracy tables, input current ratings, and warranty information.
| Measurement Category (Voltage) | Category IV 1000 V AC & DC (BM821‑BM829) |
|---|---|
| Measurement Category (Voltage) | Category I 1000 V AC & DC (BM521‑BM525) |
| Display Resolution | 4 digits, 9999 counts dual display |
| Input Current Rating | 10 A (20 A for 30 s max) |
Do not expose the instrument to rain or moisture, avoid measuring voltages above 60 V DC or 30 V AC, keep fingers behind the test‑lead guards, inspect leads for damage, and replace a blown fuse with the correct rating.
The BM821, BM822, BM827 and BM829 models are rated Category IV for voltage up to 1000 V AC & DC.
AutoCheck™ automatically selects the appropriate measurement function (DCV, ACV or resistance) based on the input signal and shows “Auto” when ready.
They provide a 4‑digit dual display with up to 9999 counts.