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The Fluke/ Hart Scientific 1522 thermometers are the first standards thermometers to fit into a battery-powered handheld package. With accuracy to ±0.005°C, the Hart Scientific 1521 / 1522 thermometers are the two most powerful handheld thermometers in the world. You'll only find this level of accuracy in large desktop units that cost three times more. Fitting easily into your hand and weighing only 0.4 kg (1 pound), Hart Scientific 1521 / 1522 thermometers can go anywhere and will give you total confidence in the accuracy of your measurements. Additionally, the Hart Scientific 1522 thermometer has the power of a full data logger with memory to hold 10,000 readings. Fluke/ Hart Scientific 1522 thermometers read both Pt-25 and Pt-100 RTDs as well as thermistors with an accuracy unheard of for handheld instruments. From –200°C to 100°C, the Fluke/ Hart Scientific 1521 thermometer reads PRTs accurately to ±0.025°C. Even at 800°C, these are high-precision readouts, accurate to ±0.1°C. Fluke/ Hart Scientific 1522 thermometers also read thermistors to ±0.005°C at temperatures below 50°C. Accuracy at 100°C is ±0.02°C. Hart Scientific 1521 / 1522 thermometers let you select resolution from 0.1° to 0.001° and offer the accuracy to support even 0.001° resolution. Of course, Fluke/ Hart Scientific 1522 thermometers let you match the exact resistance-versus-temperature characteristics of an individually calibrated probe. This is true standards thermometry. Fluke/ Hart Scientific 1522 thermometers read ITS-90, Callendar-Van Dusen, or Steinhart-Hart coefficients for maximum system accuracy. These are real algorithms, not approximating conversion methods or electronic look-up tables. If you want to use common industrial curves, RTDs can be read using the common DIN 43760 (IEC 751) curve and thermistors can be read using the YSI 400 curve. The Fluke/ Hart Scientific 1522 thermometer has all the power and great features of the Hart Scientific 1521 thermometer plus the ability to log data. Two data acquisition modes are included. In "Auto Logging" mode, the Fluke Hart Scientific 1522 thermometer can store up to 10,000 measurements at user-selected intervals, including the value, unit of measure, date, and time of each measurement. If you need more than one data set, stop recording any time and record as many sets as you like up to a total of 10,000 values. Once the 10,000 value limit is reached, recording stops, so data is never lost unless you tell the Hart Scientific 1522 thermometer to clear its log. The Fluke Hart Scientific 1522 thermometer also holds as many as 25 data labels in its memory so that each set of data can be uniquely tagged. Simply select one of the 25 labels you've created before recording data. This label is then recorded with each measurement. In "Demand Logging" mode, up to 100 individual measurements can be recorded, each one tagged with one of the 25 data labels. Whether you need a lot of measurements from one source or single measurements from many sources, the Hart Scientific 1522 thermometer is a powerful data recording tool. INFO-CON Connectors Probes attach to the Fluke/ Hart Scientific 1522 thermometers using Hart's own "INFO-CON" connector. The INFO-CON allows you to change the probes you use without requiring you to reprogram your readout. A memory chip in the INFO-CON stores all the critical information about your probe, including its serial number, recall date, and calibration constants. When you connect your probe, the Fluke/ Hart Scientific 1522 thermometer automatically recognizes whether you're using an RTD or thermistor and downloads the calibration constants and type of conversion specific to your probe. It also checks the recall date stored in the INFO-CON to verify it has not expired. Fluke/ Hart Scientific 1522 thermometers also work with probes you already own by using spare connectors which easily connect to your probes and can be programmed.
