Fluke PM 6685
| Attribute | Value |
|---|---|
| Frequency Range | 0.001 Hz to 300 MHz |
| Resolution | Up to 12 digits |
| Timebase Accuracy | ±1 ppm aging per year |
| Input Impedance | 1 MΩ / 50 Ω selectable |
| Sensitivity | 25 mV RMS (50 Ω), 100 mV RMS (1 MΩ) |
| Measurement Functions | Frequency, Period, Time Interval, Pulse Width, Duty Cycle, Totalize |
| Display | 8-digit vacuum fluorescent display (VFD) |
| Power Supply | 90–265 V AC, 45–66 Hz |
| Interface | GPIB (IEEE-488) and RS-232 |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Model | PM 6685 |
|---|
The Fluke PM 6685 combines portable convenience with lab‑grade accuracy, using smart triggering that automatically optimizes input sensitivity for clean, stable frequency readings. It delivers 10 digits‑per‑second resolution with extended overflow capability, measures up to 300 MHz, and can be expanded with GHz options. Versatile measurement modes include burst frequency, period, pulse width, ratio, and more—providing precise results across complex signals and timing tasks.
An optional battery maintains oven timebase stability for around 20 hours, enabling dependable performance during field use and transport—ideal when accurate, repeatable measurements are required away from the bench.
Testwall can supply the used Fluke PM 6685, fully tested. With expert support and global delivery, Testwall ensures high‑performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Fluke PM 6685.
