1.product introduction
　YT-2500 Smart Valve Positioner accurately controls valve stroke, according to input signal of 4-20mA, which is being input from the controller. In addition, built-in micro-processing operator optimizes the positioner's performance and provides unique functions such as Auto calibration, PID control, Alarm, and Hart protocol.
2.The basic technical parameters

Item.Type			YT-2500	YT-2550
Input Signal			4-20mA DC
Supply Pressure			0.14-0.7MPa(1.4-7bar)
Stroke		Linear Type	10-150mm
		Rotary Type	0-90°
Impedance			Max.500Ω@20mA DC
Air Connection			PT(NPT)1/4	NPT1/4
Gauge Connection			PT(NPT)1/8	NPT1/8
Conduit			PF1/2(G1/2)
Ambient Temp		Operating Temp	(-30℃～80℃)/(-22～176°F)
		Explosion Temp	(-40℃～60℃T5)/(-40℃～40℃T6)
Linearity			±0.5% F.S
Hysteresis			±0.5% F.S
Sensitivity			±0.2% F.S
Repeatability			±0.3% F.S
Air Consumption	Fail Freeze		0.01LPM(sup=0.14MPa)
	Fail Safe		6LPM(sup=0.14MPa)
Flow Capacity			60LPM(sup=0.14MPa)
Output Characteristics			Linear,EQ%,Quick Open user set(16 Point)
Material			Aluminum Diecasting	Stainless Steel316
Enclosure			IP66
Explosion Proof Type			Exia IIC T5/T6
Weight			1.5kg(3.3Ib)	2.9kg(6.4Ib)

3.selection coding


4.Appearance size