à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁẺ Air flow áÅÐ Datalogger Sper Scientific 840001 Description This datalogging anemometer automatically records up to 16,000 data points in the field along with time and date. These can later be downloaded to a computer via the anemometer’s RS232 port and the results viewed instantly on software which comes with the unit. The software also enables real time data logging directly from the anemometer to the computer. The microprocessor calculates air volume (CFM) as well as air velocity and min/max and simultaneously displays air temperature in ºC or ºF. Also reads type-K or J thermocouple probes. Features a calendar/clock, auto power off, and hold functions. This well made anemometer has a detachable probe, fold-out tripod and a large easy to read LCD. Comes ready to use in a protective foam lined carrying case complete with metal vane anemometer probe, software, RS232 computer connection cable, 4 AA batteries, and a 3V button cell battery. Meter Dimensions: 7 ¾” x 3” x 1½” (200 x 76 x 37 mm) Weight: 31 oz (515 g) Specifications: Air Volume Range Resolution Area CMM (m3/min): 0 ~ 999,900 0.001 ~ 100 0.001 ~ 9,999 CFM (ft3/min): Air Velocity Range Resolution Accuracy M/s: 0.4 ~ 25.0 0.1 ±(2% + 0.2d) Km/h: 1.4 ~ 90.0 Mile/h: 0.9 ~ 55.9 Knots: 0.8 ~ 48.6 Ft/min: 80 ~ 4921 1 ±(2% + 20 ft/min) Air Temperature Range Resolution Accuracy TempºF: 32 ~ 122ºF 0.1º 1.5ºF TempºC: 0 ~ 50ºC 0.8ºC Thermocouple Probes Range Resolution Accuracy Type K: -58 ~ 2372ºF -50 ~ 1300ºC 0.1º ±(0.2% + 1ºF) ±(0.2% + 0.5ºC) Type J: -58 ~ 2012ºF -100 ~ 1100ºC ±(0.2% + 1.8ºF) ±(0.2% + 1ºC) 840001 Anemometer Flow Meter SPER Scientific à¤Ã×èͧÇÑ´¤ÇÒÁàÃçÇÅÁ Ẻ㺾Ѵ