Fluke PM6685R
| Attribute | Value |
|---|---|
| Frequency Range | 0.001 Hz to 300 MHz |
| Resolution | 12 digits |
| Timebase Accuracy | ±0.1 ppm (high stability oven-controlled oscillator) |
| Input Impedance | 1 MΩ / 50 Ω selectable |
| Input Sensitivity | 25 mV RMS (typical) |
| Measurement Functions | Frequency, Period, Pulse Width, Duty Cycle, Rise/Fall Time, Time Interval |
| Display | Vacuum Fluorescent Display (VFD), 12-digit numeric readout |
| Gate Time | 0.1 ms to 1000 s |
| Power Supply | 90–265 V AC, 47–63 Hz |
| Interface | GPIB (IEEE-488) and RS-232 |
| Model | PM6685R |
|---|
The Fluke PM6685R is a precision time‑and‑frequency counter featuring a built‑in Rubidium atomic timebase. It delivers ultra‑stable measurements, achieving 4 × 10⁻¹⁰ stability within five minutes of warm‑up, and offers an exceptional long‑term aging rate of 1 × 10⁻⁹ over ten years. A buffered 10 MHz Rubidium reference output enables reliable synchronisation of ancillary equipment.
Compact and handheld, the device brings atomic‑level metrology accuracy to the lab without requiring cumbersome setups, ideal for portable, reference‑grade measurement tasks.
Testwall can supply the used Fluke PM6685R, 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 PM6685R.
