JTC300ADigital measuring projector (reflection)
JTC300BDigital measurement projector (positive image)

1、 Instrument usage
Digital measuring projector is a precision and efficient measuring instrument that integrates light, machine, and electricity. It can be divided into two types: reflection image and positive image, and is widely used in industries such as dry machinery, instruments, electronics, light industry, universities, research institutes, and metrological verification departments. This instrument can efficiently detect the contour dimensions and surface shapes of various complex shaped workpieces, such as templates, stamped parts, cam threads, gears, forming milling cutters, etc.

IIInstrument characteristics
The optical system of the instrument has excellent quality, with clear objective imaging and accurate magnification. Under transmitted light illumination, the contour measurement error is less than 0.08%; The measurement indication error can reach (3+L/75) μ m, where L is the measured length (unit: mm)

3、 Product parameters

Instrument model			JTC300A(JTC300B)-1505				JTC300A(JTC300B)-2010
workbenches	Metal table size (mm)		320×220				355×200
	Glass table size (mm)		φ190				260×150
	X-coordinate travel (mm)		150				200
	Y-coordinate travel (mm)		50				100
	Instrument measurement accuracy		4+L／50				4+L／50
	X. Y coordinate digital display resolution: 0.001
projection screen	Size (mm): * 312, range of use>* 300 (engraved with meter line)
	Projection rotation range: 0~360 °
	Rotation angle digital display resolution: 1 'or 0.01 °
	magnification	10 x (mandatory)			20 x (optional)	50 x (optional)		100 x (optional) (Optional only for JTC300A)
	Object field of view	φ30mm			φ15mm	φ6mm		φ3mm
	Material working distance	85.17mm			81.94mm	16.99mm		16.39mm
	Reflection method	External reflection			External reflection	internal reflection		internal reflection
	Focusing stroke	70mm
data processing system	3000 type multifunctional data processing system
Instrument lighting	Both transmission and reflection lighting sources are 24V, 150W halogen tungsten lamps
Instrument power supply	220V (AC), 50/60HZ, total power 350W
Cooling method	Forced air cooling (3 axial fans)
External dimensions	Length x Width x Height (mm)			720×390×1100			720×390×1100
Instrument weight	Company: kg			175			175