Allows external voltage to control the frequency (typically 0-10V).
: Check the Protek Design Download Center for technical specifications and user guides related to their electronic utility equipment.
: These models generally offer analog bargraphs, dual displays, and high-count resolutions (e.g., 20,000 to 50,000 counts). protek b801 manual link
the Square wave option and set the SYMMETRY control knob to the "CAL" position.
The device features a 0 to 40dB attenuator, typically organized into a 20dB step and a variable 0-20dB control. Allows external voltage to control the frequency (typically
| Symptom | Likely Cause (from manual) | Solution (page reference) | |---------|----------------------------|---------------------------| | Device won't turn on | Dead internal battery or blown input fuse | See Section 3.2 (Fuse replacement) | | Inaccurate AC readings | Incorrect calibration mode activated | See Section 5.1 (Exit calibration) | | Display flickers | Low battery warning (even if on AC) | See Section 2.4 (Power conditioning) | | Beeps continuously | Input jack alarm (probe not fully seated) | See Section 1.7 (Input warnings) |
Less than 2% total harmonic distortion from 10Hz to 100kHz. the Square wave option and set the SYMMETRY
Establishing a manual link involves several steps:
Check if the DC Offset is pulled out and set too high. Excessive offsets combined with a high amplitude can clip the waveform against the internal rail voltage limits.