PF3W series digital water flow switch, 3-color display

*1) When the actual flow rate is lower than the minimum flow rate display range, the display will show “0.00”, “0.0” or “0”.
*2) If 0.5 s is selected as the switch output response time, the repeatability will be ±3% of full scale (F.S.).
*3) Cleared when power is turned off. Hold function can be selected. (2 or 5 minute intervals can be selected).
If the 5 minute interval is selected, the life of the memory element (electronic components) is limited to 1 million cycles.
(If it remains energized 24 hours, the lifespan is calculated as: 5 minutes × 1 million = 5 million minutes = approx. 9.5 years.)
Therefore, if you use the retention function, calculate the memory life according to your operating conditions and use it within that limit.
*4) Response time until reaching 90% of the set value with respect to a step input (the response time is 7 s for the temperature sensor output).
*5) Response time until reaching 90% of the set value with respect to a step input (the response time is 7 s for the analog output of the temperature sensor).
*6) In the case of the temperature sensor, the withstand voltage is 250 V AC.
*7) If the pipe diameter or pitch is restricted, the specifications may not be met.
*8) Products that have small scratches, marks or variations in the color or brightness of the screen, as long as they do not affect the performance of the product, are considered compliant.