Fluke PM 6685R
| Attribute | Value |
|---|---|
| Frequency Range | 0.001 Hz to 300 MHz |
| Resolution | Up to 12 digits |
| Input Impedance | 1 MΩ / 50 Ω selectable |
| Sensitivity | 25 mV RMS (50 Ω), 100 mV RMS (1 MΩ) |
| Time Base Accuracy | ±0.1 ppm (aging per year) |
| Measurement Functions | Frequency, Period, Time Interval, Pulse Width, Duty Cycle, Totalize |
| Display | Vacuum Fluorescent Display (VFD), 12-digit |
| Interface | GPIB (IEEE-488) and RS-232 |
| Power Supply | 100–240 V AC, 50/60 Hz |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Model | PM 6685R |
|---|
The Fluke PM‑6685R is a precision universal frequency counter and calibration instrument, powered by an ultra‑stable Rubidium timebase with a 4 GHz virtual clock. It achieves an outstanding resolution of 2.5 × 10⁻¹⁰ per second, delivering 10 fully reliable display digits within seconds—ideal for laboratories requiring atomic‑level accuracy and calibration assurance.
This highly integrated counter is designed for both laboratory and demanding field applications, ensuring consistent measurement confidence and unmatched performance across diverse environments.
Testwall can supply the used Fluke PM‑6685R, 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‑6685R.
