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The OMEGA HH501DK is a portable 3½ digit, compact-sized digital thermometer designed to use external K-type thermocouple as temperature sensor. Specifications. Temperature Scale: Celsius or Fahrenheit user-selectable. Measurement Range: -50°C to 1300°C, (-58°F to 2000°F). Resolution: 1°C or 1°F, 0.1°C or 0.1°F. Accuracy (Accuracy is specified for operating temperatures over the range of 18°C to 28°C (64°F to 82°F), for 1 year, not including thermocouple error.) : ±(0.3% rdg + 1°C) -50°C to 1000°C, ±(0.5% rdg + 1°C) 1000°C to 1300°C, ±(0.3% rdg + 2°F) -58°F to 2000°F. Temperature Coefficient: 0.1 times the applicable accuracy specification. per °C from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F). Input Protection: 24V dc or 24V ac rms maximum input voltage on any combination of input pins. Reading Rate: 2.5 times per second.
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