â·ÃÊͺ¶ÒÁÃÒ¤Ò FLUKE 51-2 à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ¤ÇÒÁÅÐàÍÕ´ÊÙ§ -250 ͧÈÒC ¶Ö§ 1,767 ͧÈÒC à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ FLUKE 51-2 Fluke 51-2 Thermometer Features Relative time clock on MIN, MAX, and AVG provides a time reference for major events Electronic Offset function allows compensation of thermocouple errors to maximize overall accuracy Measures J, K, T, and E-types of thermocouples Readout in °C, °F, or Kelvin (K) Splash and dust resistant case protected by impact absorbing holster User-friendly front panel is easy to set up and operate Sleep mode increases battery life; typical 1000-hour battery life Battery door allows easy battery replacement without breaking the calibration seal Optional ToolPak accessory allows the thermometer to hang from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation Specifications Temperature accuracy Above -100 °C: J, K, T, E, and N-type: ±[0.05% + 0.3°C]* R and S-type: ±[0.05% + 0.4°C]* Below -100 °C: J, K, E, and N-types: ±[0.20% + 0.3°C]* T-type: ±[0.50% + 0.3°C] Temperature Range J-type: -210 °C to 1200 °C K-type: -200 °C to 1372 °C T-type: -250 °C to 400 °C E-type: -150 °C to 1000 °C N-type: -200 °C to 1300 °C * R and S-type: 0 °C to 1767 °C * Temperature scale ITS-90 Applicable standards NIST-175 Display Resolution 0.1 °C, 0.1 K < 1000 1°C, 1 K >=1000 Note * Only the Fluke Models 53 II and 54 II thermometers are capable of measuring N, R, and S-type thermocouples. Environmental Specifications Operating Temperature -10 °C to 50 °C Storage Temperature -40 °C to 60 °C Humidity (Without Condensation) 0% to 90%; 0 °C to 35 °C 0% to 70%; 0 °C to 50 °C Safety Specifications Overvoltage category CSA C22.2 No. 1010.1 1992; EN 61010 Amendments 1,2 Agency Approvals CE, CSA, TÜV (pending) Mechanical & General Specifications Size 173 mm L x 86 mm W x 38 mm Weight 400 g Batteries 3 AA batteries; typical 1000-hour life Fluke FLUKE 51-2 Temperature Thermometer à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ à·ÍÃìâÁÁÔàµÍÃì