Setting up the F100
F100-14-001.2 Page 1-11
ASL 2005
1.0 Introduction
1.1 Overview
The F100 Precision Handheld Thermometer is a highly accurate instrum ent designed for laboratory,
commercial and industrial temperature measurement and calibration applications.
Features include:
• Two input channels
• A large graphic LCD display for ex cellent viewing of temperature measurement values and
instrument settings
• USB communication interface as standard for automated monitoring and calibration
applications
• Calibration against traceable external standards
The F100 will operate with all 4-wire Pt100 (100 ohm) Platinum Resistance Thermom eter s (PRTs) and
with virtually all NTC thermis tors.
Temperature measurement units are user-selectable and can display °C, °F, K and Ω. Overall system
accuracy will depend on the sensor quality and calibration - see the specification section.
1.2 Definitions and Terminology
i. 0°C = 273.15 K
ii. 1 mK (milli-Kelvin) = 0.001°C (one milli-degree Celsius)
iii. 1 milli-degree C = 0.001 °C = 1m°C = 1mK = 1.8m°F
iv. 1 milli-degree F = 0.001°F = 1m°F = 0.56mK = 0.56m°C
v. Alpha, or α, is the temperature coefficient, or temperature sensitivity, of the platinum wire used
in PRTs. In general, the greater the alpha value, the better the PRT thermometer
measurement reproducibility, stability and per formance
vi. Abbreviations for platinum r esistance thermometers include -
PRT (Platinum Resistance Thermometer)
Pt100 (PRT with nominally 100Ω resistance at 0°C)
RTD (Resistance Temperature Device)
vii. NTC is an abbreviation for Negative Temperature Coefficient thermistors
viii. System accuracy ref ers to the overall, combined accuracy of the F100 and thermometer.
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