An indentation in the stem indicates the area of the stem that is the temperature sensing region. An alternative reference temperature for example is the target end temperature of a product. Instrument calibration is not only a food safety issue but also an economic consideration since the accuracy of temperature monitoring devices also affects product yields. Calibration of non-product contact thermometers such as Resistance Temperature Detector (RTD), oven temperature recording devices, and infrared thermometers are also described. Bi-metal coil thermometer calibration method. If this is still not working, check with the manufacturer of the NIST reference thermometer. Compare this item. Batteries Included: Includes : Each: Thermometers with Calibration Certificate Traceable to NIST . What is Top 10 Thermometer Made In the USA in 2020? The calibration adjustment should be noted in the thermometer calibration log. The food industry is keenly aware of the critical nature of processing temperature requirements. Share sensitive information only on official, secure websites. Extreme fluctuation in temperature along the sensing region can affect the extension of the bi-metal coil, which affects thermometer accuracy. Supplied with NIST traceable, ISO/IEC 17025 accredited report of calibration at test points -20, 0, 50, 100, 150°C : 650.011.3210: Reference THERMAPEN thermometer. So if you go the glass thermometer route as your reference, you just need one. Place the NIST reference thermometer in the ice water bath. Supplied with NIST traceable, ISO/IEC 17025 accredited report of calibration at test points -4, 32, 122, 212, 302°F: Learn About Our Temperature Calibration Services. Immerse the stem to a minimum depth of 2 1⁄2 inches (6.4 cm). A major consideration when using any thermometer is the consistency of the product and temperature distribution throughout the product. The different types of thermometers include liquid-in-glass (LiG), thermistors, thermocouples (<200 °C), and industrial platinum resistance thermometers (IPRTs). This is a service usually provided by the manufacturer of the thermometer or a NIST calibration laboratory. A similar calibration procedure can be used for thermometers intended to be used in cold processes and products. Contained within the stem of the thermometer is a coil made of two different metals bonded together to a temperature indicator. The Durac® Plus™ NIST Traceable non-mercury reference thermometer is made with permanently fused marking and fractional degrees to provide precision and ensure accuracy. July 2020, Calibrated thermometer with certificate of traceability. The calibration method used at your facility depends on the temperature monitoring instrument, monitoring frequency, and intended use, and whether for a product or environmental monitoring. Spirit Filled Glass Thermometers, NIST Certified. New equipment must be calibrated upon receipt and before putting it into service. Thermometers with Calibration Certificate The long stem reaches the bottom of deep beakers and flasks, and the water-resistant housing stands up to washdown conditions and outdoor use. Heat distilled water to a specific reference temperature. Once a bi-metal coil thermometer has been calibrated for high-temperature use, label the thermometer for use in this temperature range. Calibration is the process of standardizing a temperature monitoring instrument to ensure that it will measure within a specific temperature range in which the instrument is designed to operate. For example, a bi-metal coil thermometer can detect a 1.0-degree temperature change, while a thermistor may detect a 0.1-degree temperature change. NIST traceable Large, 10" dial Quartz-crystal timing Clock has 0.01% accuracy. INFRARED THERMOMETER … How to Use If the temperature is above 32°F (0°C), add more crushed ice to the beaker. $46.79 $ 46. The boiling point of water changes with altitude. To find the correct boiling point for your area, refer to Figure 1, Boiling point of water with relationship to altitude. For temperature critical applications, a calibrated standard thermometer is… There are a variety of commercial temperature monitoring devices available. Official websites use .gov Supporting accurate measurements of temperature for various applications, such as semiconductor processing. thermometer, LiG thermometer measurement system, reference temperature measurement system, comparison baths, and the ice melting point [ice MP, (0 °C)]. Also, thermometers that have been dropped on the floor or used frequently must be calibrated more often. A .gov website belongs to an official government organization in the United States. Cranes and Machinery is a page dedicated to offering information on machinery and industrial equipment; publishing articles every week. Reference THERMAPEN thermometer. Either or is fine as long as you have a calibration policy.

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