1.product introduction
    YT-3400(YT-3450) 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-3400	YT-3450
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.450Ω@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	Standard Type	(-30℃～85℃)/(-22～185°F)
	Low Temp Type	(-40℃～85℃)/(-40～185°F)
	Explosion Temp	(-40℃～80℃T5)/(-40℃～70℃T6)
	LCD Operaling Temp	(-30℃～85℃)/(-22～185°F)
Linearity		±0.5% F.S
Hysteresis		±0.5% F.S
Sensitivity		±0.2% F.S
Repeatability		±0.3% F.S
Air Consumption		Below 2LPM(sup=0.14MPa)
Flow Capacity		70LPM(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		3.4kg(7.5Ib)	7.0kg(15.4Ib)

3.selection coding

4.Appearance size