Pressure Sensor

QTM

Electronic pressure switch with no mechanical moving part
Fast response 1ms
Measuring range 0~150MPa
PDF：QTM
INQUIRY

Series QTM

Electronic Pressure Switches

QTM sensing element has excellent temperature properties by adopting a self temperature compensation Glass on Titanium or Stainless 316L. It can control the system without any controller due to the output of 1 or 2 channel NPI open collector switch.

Feature

-Electronic pressure switch with no mechanical moving part

-Fast response 1ms

-Measuring range 0~150MPa

-One or two pressure setting points

-Piezoresistive silicon cell

-Stainless steel 316L or Titanium Diaphragm

Applications

-Process control

-Hydraulics & Pneumatic

-Compressor Control

-Chillers

-Refrigeration Equipment

SPECIFICATIONS

	QTMU		QTMW
Range
		0~20，30，50，100，200，300，500，700kPa / 2，3.5，5，10，20，30，35，50，100，150MPa(Gauge) 0~100，200，300，500，700kPa / 2，3.5MPa（Absolute）
Performance
Accuracy		±1%FS
Hysteresis		Hysteresis adjustable(2~10%)	3%FS
Thermal Effect on Zero		±0.1%FS/℃
Thermal Effect on Span		±0.1%FS/℃
Compensated Temperature Range		-10~70℃
Operating Temperature Range		-20~80℃
Electrical
Excitation		11-28VDC
Output		1Channel NPN Open Collector	2 Channel NPN Open Collector
Switch Load Current		28V 80mA Max.
Electrical Connection		Cable
Physical
Proof Pressure		150%FS Max.
Burst Pressure		200%FS Min.
Vibration		49.1m/s²{5G}，10~500Hz
Shock		4903/s²{50G}
Pressure Port		R(PT)1/8”,G(PF)1/8”,R(PT)1/4”,G(PF)1/4”,R(PT)3/8”,G(PF)3/8”
Media - Wetted Materials		Stainless Steel 304 / Titanium 87% or Stainless Steel 316L
Weight		Approx.150g（include cable 100cm）