Use the variable DC offset feature to raise or lower the signal, ranging from <-10V to >+10V. Troubleshooting and Support
The FREQ dial and RANGE switches work together; the frequency controls affect both pulse width and repetition rate.
You don’t need to read all 24 pages immediately. As an experienced user, focus on these five sections:
A: Yes. Page 23 lists the DC input jack as a 5.5mm x 2.1mm center positive barrel connector . protek b801 manual link
Replace the battery with a premium lithium or alkaline cell. Clean the battery contacts with a cotton swab dipped in isopropyl alcohol. Symptom: Erratic or Drifting Readings
On that page, you can:
Here's what to do:
PSA: Finding the Protek B801 Manual (It's trickier than it should be)
According to technical specifications, the B801 is straightforward to operate.
You can externally control the output frequency by applying a voltage level (0 to -10V) to the VCF input, which is useful for sweep testing applications. Use the variable DC offset feature to raise
Pull or turn the Amplitude knob to safely regulate your voltage ceiling between 2V and 20V P-P. If testing sensitive components, engage the to drop signal power by up to 40dB. 3. Utilizing Advanced Functions
A large dial paired with range selectors (multiplying factors) determines the coarse frequency output.