22 Clamp-on Meter Models 670 and 6754.8 Temperature MeasurementWARNING: Make sure that there is no powerin the tested sample or circuit (dead circuit).• Turn the rotary range switch to the TEMP range.• To measure the temperature, connect the K-typethermocouple probe to the input terminals, observingthe polarity.• The main display is in degrees Celsius (°C) by default,and the secondary display in degrees Fahrenheit (°F).The user can change the main display to degreesFahrenheit (°F) and the secondary display to degreesCelsius (°C) by pressing the DISPLAY button.DISPLAYMIN MAXPEAKHOLDDUAL TRMS DISPLAY1000A1000V CAT III600V CAT IV1000VCAT IIIMODEL 670TRMS CLAMP METER