Description
The Fluke PM 6685R 300 MHz Rubidium Frequency Counter is a high-performance instrument designed for precise frequency measurements. It utilizes rubidium atomic frequency standards to provide exceptional accuracy and stability. With a frequency range of up to 300 MHz, this frequency counter is capable of accurately measuring a wide range of signals. The instrument features a large, easy-to-read display that provides real-time frequency measurements with high resolution. Its robust construction ensures durability and reliability in various working environments. The Fluke PM 6685R 300 MHz Rubidium Frequency Counter is a valuable tool for professionals in fields such as telecommunications, aerospace, and research, where precise frequency measurements are essential.
Specifications
– Frequency range: 10 Hz to 300 MHz
– Frequency resolution: 1 Hz
– Accuracy: ±(5 x 10^-10 + aging)
– Timebase: Rubidium atomic standard
– Gate time: 1 s to 10,000 s
– Input impedance: 50 Ω
– Input sensitivity: 30 mVrms to 100 Vrms
– Input coupling: AC/DC
– Input connector: BNC
– Display: 8-digit LED
– Timebase stability: <1 x 10^-11 per month, <5 x 10^-11 per year
– Operating temperature: 0°C to 50°C
– Power requirements: 100-240 VAC, 50/60 Hz
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.



