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Pressure sensor/transmitter

QTQ801 series special equipment pressure sensor/transmitter

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Contact number:: 0731-81809600; 0731-85128155

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E-mail：: qitai@chntek.com

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Company address:: No. 22, Dingsheng Road, Liuyang Economic Development Zone (High-tech Zone)
Address of Marketing Center:: Room 1108, Floor 11, Building 2, Modern Service Industry Park, No. 118 Xiongtian Road, Furong District, Changsha City

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QTQ801 series special equipment pressure sensor/transmitter

The core components of the pressure sensor/transmitter of the QTQ801 series of special equipment adopt the metal-based pressure-sensitive chip independently developed and produced by our company, and the integrated circuit chip for conditioning also adopts completely independent domestic products to ensure that the product is completely independent and controllable. The electronic components of the product have been strictly tested to ensure the reliability and safety of the product. The product structure design is reasonable, the detection is accurate, the performance is stable, the measurement accuracy is high, the anti-interference ability is strong, and the appearance adopts a fully sealed stainless steel structure, which can meet the requirements of harsh working conditions such as moisture-proof, explosion-proof, anti-corrosion, and dust-proof.

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Category：Pressure sensor/transmitter

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Product description

Parameters

product description

Core capacity advantage

With an annual production capacity of 6 million cores, it has completely broken the pattern of foreign monopoly of the cores.

Packaging capacity advantage

The first packaging line with an annual output of 2 million pressure sensors was successfully put into production. Follow-up will continue to expand production.

Quality Assurance

Qitai has a mass-produced metal-based pressure-sensitive chip production line, a 100-level purification workshop, a fully automatic binding machine, and fully complies with the ISO9001 quality management system to ensure product quality and consistency. The company is well aware of the importance of quality in product applications, and for this reason we have been doing everything possible to improve product quality. For engineers, the worst thing is to stop work because of quality problems. Qitai attaches great importance to this issue and makes unremitting efforts for it. We promise to provide you with the greatest quality assurance. Qitai uses sputtering film technology, complete products and 100% final inspection quality assurance measures to ensure that customers will no longer be Worry about quality problems.

strong and sturdy

The QTQ801 special pressure sensor adopts a compact design of fully welded stainless steel, which can effectively protect the sensor under harsh working conditions. The electrical connector protection level reaches IP65, IP67, and has a sturdy internal structure design to ensure that the sensor can work normally in a high-vibration environment.

product features

◆Quickly install the pressure interface, easy to install

◆Metal base pressure-sensitive chip, with good long-term stability, high precision, anti-vibration, anti-shock, and good overload capacity;

◆Corrosion resistance, high temperature resistance, small temperature drift

◆Fully welded structure, high protection level

◆The transmitter adopts stainless steel as a whole, which has strong corrosion resistance

◆Using stable and mature ASIC high-reliability integrated circuits, designed for pressure transmitters such as 4-20mA, 0.5-4.5V, etc.

◆Fast response speed

◆High cost performance

◆High overload and high destruction pressure products can be customized

Applications

Applied to pressure measurement of special equipment system.

Product parameter

Performance parameter

Accuracy	0.2% FS 、 ± 0.5% FS 、 ± 1% FS
Long-term stability	±0.1%FS/year
Zero temperature drift	±0.1%FS/10℃ or customized
Full-scale temperature drift	±0.3%FS/10 ℃ or customized
Response time	≤1 millisecond
Non-linear	± 0.2% FS 、 ± 0.5% FS
Repeatability	0.1%FS
Hysteresis	±0.1%FS
Durability	10 ⁸ pressure cycles

Range, overload pressure and failure pressure

Range MPa	0.5-6	10-60	70	100
Overload pressure	2 times	2 times	1.5 times
Breaking pressure	20 to 40 times	10 times and ≤400MPa	≤400MPa

Electrical parameters

Supply voltage	8～32VDC
Supply current	≤ 30mA
load	Current output type: RL≤50×(Vcc-8)Ω, voltage output type: RL≥250Ω
Insulation resistance	≥1000MΩ/500VDC

Physical properties

Sensitive component material	17-4PH
shell	316 stainless steel
Pressure port	See back pressure port
Electrical connections	See below Electrical connection port
Protection level	IP65 、 IP67

Environmental parameters

Medium temperature range	-40～+125℃
Ambient temperature range	-40～+95℃
Storage temperature range	-40～+95℃
Random vibration	20g, GB/T2423.56-2006
Sinusoidal vibration	14.1g, GB/T2423.10-2008
Shock	50g,11ma GB/T2423.5-1995
EMC- electromagnetic field radiation immunity	GB/T 17626.3-2016
EMC-electrostatic discharge immunity	GB/T 17626.2-2018

Wiring

Pressure port

Electrical Interface

Ordering guide

model	Range	Pressure port	Output	Electrical Interface	Options
QTQ801 accuracy 0.2%	055 0.5 MPa	G2 G1/4 -19	A 4-20mA	01 M12X1
QTQ801 accuracy 0.2%	105 1 MPa	N2 NPT 1/4	B 0.5-4.5V voltage output	02 Direct outlet
QTQ802 accuracy 0.5%	165 1.6 MPa	M6 M20X1.5	C 0.5-4.5V proportional voltage output	03 Packard connector
QTQ802 accuracy 0.5%	255 2.5 MPa	M3 M12X1.5	G 0-10V voltage output	04 Hessman connector
QTQ803 accuracy 1%	046 4 MPa	G1 G1 / 8	D 0-5V voltage output	05 AMP connector
QTQ803 accuracy 1%	066 6 MPa	G5 G1/4-19A	E 0.5-2.5V voltage output	07 DEUTSCH DT04-4P
	106 10 MPa	W5 M12X1.5 metal gasket seal	J CAN protocol digital output	08 DEUTSCH DT04-3P
	166 16 MPa	G4 G1 / 2	I millivolt signal output	81 Custom interface
	256 25 MPa	M4 M14X1.5
	406 40 MPa	M1 M8X1.25 internal thread
	606 60 MPa
	706 70 MPa
	107 100 MPa

Selection example: QTQ801 055 G2 A 01 =QTQ801 accuracy 0.2% Range: 0.5MPa Pressure interface: G1/4-19 Output: 4-20mA Electrical interface: M12X1

If you have any questions during the selection process or need special customization, please contact Qitai Sensing sales engineer for more detailed information and selection suggestions. Qitai Sensing serves you wholeheartedly.