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QTQ001/002/003 general pressure sensor

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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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QTQ001/002/003 general pressure sensor

The QTQ000 series general pressure sensor is packaged with a metal sputtering film core independently developed and produced by our company. This series of products can be provided in the pressure range of 0.5MPa to 250MPa The comprehensive accuracy of 0.2% FS, 0.5% FS and 1% FS has the advantages of long-term fatigue resistance, wide temperature range, impact resistance, and high reliability. It can carry out accurate measurement even under the most severe conditions and is suitable for various Kind of gas and liquid pressure measurement.

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Category：Pressure sensor/transmitter

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Product description

Parameters

1

product description

The QTQ000 series general pressure sensor is packaged with a metal sputtering film core independently developed and produced by our company. This series of products can provide a comprehensive accuracy of 0.2% FS, 0.5% FS and 1% FS in the pressure range of 0.5 MPa to 250 MPa. It has the advantages of long-term fatigue resistance, wide temperature range, impact resistance, and high reliability. It can measure accurately even under the most severe conditions and is suitable for pressure measurement of various gases and liquids. This product breaks the monopoly of metal sputtering film pressure sensors by foreign manufacturers. The product quality has reached a world-class level, and some parameters are better than similar foreign products, which can completely replace foreign imported products.

It uses a sturdy, fully welded stainless steel shell, with IP65, IP67 protection grades, moisture-proof and moisture-proof. It has a variety of output forms, pressure connectors and electrical connector selections to meet a wide range of application requirements.

QTQ001 accuracy level 0.2%FS

QTQ002 accuracy level 0.5%FS

QTQ003 accuracy level 1%FS

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Core capacity advantage

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

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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.

4

Quality Assurance

Qitai has a mass-produced metal-based pressure-sensitive chip production line, a 100-level purification workshop, a fully automatic bonding 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 an engineer, the worst thing is to stop work because of quality problems. Qitai attaches great importance to this problem and makes unremitting efforts to 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 do not Worry about quality problems again.

5

strong and sturdy

The QTQ000 series 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.

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product features

◆Metal base pressure-sensitive chip ensures long-term stability better than ±0.2%FS/year

◆Advanced anti-interference, anti-surge circuit protection and high-insulation withstand voltage film material

◆No oil-filled, all stainless steel structure, high stability, no leakage hazard

◆Double gold wire lead technology, the lead is firm and reliable

◆Wide pressure range, from 0.5MPa ~ 250MPa

◆Fast response speed, response time less than 1ms

◆0.2%FS, 0.5%FS, 1%FS full scale accuracy optional

◆The output can choose current output, voltage output and proportional output

◆Small hysteresis, good repeatability

◆Compact appearance, providing designers with maximum flexibility

◆Low cost, can be used for mass OEM devices

◆Identifiable, unique ID number of sensitive chip

◆IP65, IP67 high protection level

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application

* Ship * Transportation

*Chemicals*Pharmaceuticals

* Food hygiene * Water supply

* Hydraulic * Refrigeration

* Industrial automation control

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Product parameter

Performance parameter

Accuracy	± 0.2% FS 、 ± 0.5% FS 、 ± 1% FS
Long-term stability	±0.2%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
Durability	10⁷ pressure cycles

Range, overload pressure and failure pressure

Range MPa	0.5-2.5	4-10	16-40	60	70	100	120-180	200	250
Overload pressure	2 times	2 times			1.5 times				≤300MPa
Breaking pressure	40 times	20 times	10 times	≤400MPa	≤400MPa

Note: higher overload pressure and failure pressure can be customized

Electrical parameters

Supply voltage	8-32VDC、5VDC
load	Current output type: RL≤50×(Vcc-8)Ω, voltage output type: RL≥2 KΩ
Insulation resistance	≥1000MΩ/500VDC
Output	4-20mA, 0.5-4.5V voltage output, 0.5-4.5V proportional voltage output, 0.5-2.5V voltage output, 0-5V voltage output, 0-10V voltage output, CAN protocol digital output, millivolt signal

Physical properties

Sensitive component material	17-4PH
Pressure port	See back pressure port
Electrical link	See the electrical interface
Protection level	IP65 、 IP67

Environmental parameters

Medium temperature range	-40～+85℃
Ambient temperature range	-40～+85℃
Storage temperature range	-40～+85℃
Random vibration	14.1g, GB/T2423.56-2006
Sinusoidal vibration	10g,GB/T2423.10-2008
Shock	20g,11ms 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
QTQ001 accuracy 0.2%	055 0.5 MPa	G2 G1/4 -19	A 4-20mA	01 M12X1
	105 1 MPa	N2 NPT 1/4	B 0.5-4.5V voltage output	02 Direct outlet
QTQ002 accuracy 0.5%	165 1.6 MPa	M6 M20X1.5	C 0.5-4.5V proportional voltage output	03 Packard connector
	255 2.5 MPa	M3 M12X1.5	D 0-5V voltage output	04 Hessman connector
QTQ003 accuracy 1%	046 4 MPa	G1 G1 / 8	E 0.5-2.5V voltage output	05 AMP connector
	066 6 MPa	G5 G1/4-19A	G 0-10V voltage output	06 JS.T connection
	106 10 MPa	G4 G1 / 2	I millivolt signal output	07 DEUTSCH DT04-4P
	166 16 MPa	M4 M14X1.5	J CAN protocol digital output	08 DEUTSCH DT04-3P
	256 25 MPa	M1 M8X1.25 internal thread
	406 40 MPa