What Is an Optical Pyrometer?

Optical pyrometer is a non-contact temperature meter

Optical pyrometer

WGG2 optical pyrometer is a non-contact measuring instrument for measuring high temperature. When the measured temperature is higher than the range that the thermocouple can use, and the place where the thermocouple is impossible or inappropriate, the optical pyrometer can generally meet this requirement .

WGG2 optical pyrometer can be in relative humidity from 10 to 50 ° C

Continuous working under the condition of not more than 85%.

The distance between the objective lens and the target is not less than 700 mm. Ruler length is not less than 90 mm.

The net weight is about 1.8 kg.

WGG2-201 schematic

Measurement range	Range	Allowed basic error		Notes
700-2000	700-1500	800- <900	± 33	For reference only below 800
	900-1500 ± 22	900-1500	± 22
	1200-2000	± 30

Monochromatic radiation blackness coefficient of various metallic materials at effective wavelength = 0.66um

Material name [1]		No oxide layer on the surface		Oxidized smooth surface
		Solid	Liquid
aluminum				0.22-0.4
silver		0.07	0.07
copper		0.35	0.37	0.8
cast iron		0.37	0.4	0.7
copper		0.1	0.15	0.6-0.8
Constantan		0.35		0.84
nickel		0.36	0.37	0.85-0.96
Nichrome	90% Ni, 10% Cr	0.35		0.87
	80% Ni, 20% Cr	0.35		0.9
Nichrome 95Ni, Al, Mn, Si		0.37
Magnet				0.25-0.50
Graphite (powdered)		0.95
carbon		0.80-0.93