User: Swiss Beznau Nuclear Power Plant 
Overview: The Beznau nuclear power plant is the first nuclear power plant in Switzerland. The water pumped into the core from the main pump of the nuclear power plant of the nuclear power plant is heated to 290°C and 10MPa high-temperature and high-pressure water. The contact-type flowmeter is generally flanged or threaded, thus breaking the pipeline. The flow meter will also be affected by pressure, temperature, and medium. Once a failure occurs, the consequences will be disastrous. The time-differential principle of the FLEXIM Ultrasonic Flowmeter can be installed on existing pipelines without cutting off the process piping, clamping connection, and piping without leakage, thus avoiding any possible risks. The ultrasonic flowmeter FLUXUS® ADM is suitable for pipes with a pipe diameter of 100mm and a wall thickness of 10mm. The FLEXIM ultrasonic flow meter can measure very low flow rates (0.1-25 m/s). The clip-on probe has no interference to maintain the best and most accurate measurement. 
Measuring conditions:
Medium: high temperature water temperature of primary circuit of pressurized water reactor in nuclear power plant: 290°C
FLEXIM Ultrasonic Flowmeter Model:
Mainframe shell weight: ~ 1.9kg
Protection class: IP65 (according to EN60529)
Material: Aluminum Alloy, Powder Coating Size: (226 x 213 x 59)mm (WxHx D)
Channel: 2
Danger Zone: Zone 2
Power supply: rechargeable battery (6V/4Ah); external power supply (100 ~ 240) VAC
Battery operating time: >14h
Display: 2 x 16 characters, dot matrix, with backlight Operating temperature: -10 ~ 60°C
Power Consumption: < 6W
Average signal: (0 ~ 100)s, adjustable measurement rate: (100 ~ 1000)Hz (1 channel)
Response time: 1s (1 channel), 70ms optional.
Probe: F601/G601 (high temperature resistance)
Product advantages:
Uninterrupted to 450°C
Dynamic Range --- Small Flow Rate Measurement Accurate