Factors affecting far-infrared thermometers
1, id-daqs ta' it-temperatura kejl target and the relationship between the temperature measurement distance: at different distances, the effective diameter of the measurable target D is different, and thus in the measurement of small targets to pay attention to the target distance. Infrared thermometer distance . Infrared thermometer distance C coefficient K is defined as: the measured target distance L and the target target D ratio, that is, 2c the target .C % 7b{1}} L/D
2, The Choice of the measured Substance Emissivity: infrared Termometru Is Ġeneralment Based On The Black Body (Emissivity ε=1.{{}}) gradwazzjoni, u in fact, the emissivity of the substance are less than 1.00. Therefore, in the need to measure the true temperature of the target, the emissivity value must be set. The emissivity of the material can BE Found from the "data about the emissivity of the object in the radiation thermometry".
3, Il kejl Of The Target In The Bright background: if The Target has a Brighter background light (Speċjalment by the Sun or Strong Lamps), The Accuracy of the Measurement Will be affected, So WE can use the object to block the Target's bright light to Eliminate the background light Interference.
4, the measurement of small targets
(1) il il pirometru għandu be fiss fuq il - ... tripod (fakultattiv aċċessorji)
(2) il-ħtieġa għal preċiża li tiffoka, li is: with the eyepiece in the small black dot on the target (il target should be full of small black dots), the lens will be adjusted back and forth, the eyes slightly shaken, if the measured small black dots with no relative movement between them, then the focusing has been completed
5. Temperatura output funzjoni
(1) digital signal output - RS232, RS485, temperature signal transmission
(2) Analogu sinjal output - 0 ~ 5V, 1 ~ 5V, 0 ~ 1{0V, 0/4 ~ 20 mA, can be added to the closed-loop control.
(3) għoli alarm, low alarm -the production process requires the control of the temperature in certain range, you can set the high and low alarm values. High alarm: In the case of high alarm setting open, when the temperature is higher than the high alarm value from the corresponding LED flashes, the buzzer sounds, and the AH normalment open relay turns turns on.
