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QTQ100 intrinsically safe explosion-proof pressure 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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QTQ100 intrinsically safe explosion-proof pressure transmitter

Oil and natural gas equipment requires pressure sensors to be reliable and able to withstand extreme environmental and pressure conditions. The QTQ100 intrinsically safe explosion-proof pressure transmitter is packaged with a metal-based pressure-sensitive chip independently developed and produced by our company. The wetted parts are 17-4PH Stainless steel material can provide a variety of electrical and pressure connections and electrical output. The manufacturing process adopts the most advanced automation equipment to ensure consistent quality and performance of the sensor. It can provide 0.2% in the pressure range from 0.5MPa to 250MPa

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Category：Pressure sensor/transmitter

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Product description

Parameters

1

product description

Oil and natural gas equipment requires pressure sensors to be reliable and able to withstand extreme environmental and pressure conditions. The QTQ100 intrinsically safe explosion-proof pressure transmitter is packaged with a metal-based pressure-sensitive chip independently developed and produced by our company. The wetted parts are 17-4PH Stainless steel material can provide a variety of electrical and pressure connections and electrical output. The manufacturing process adopts the most advanced automation equipment to ensure consistent quality and performance of the sensor. It can provide 0.2% in the pressure range from 0.5MPa to 250MPa

The comprehensive accuracy of 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 accurately measure even under the most severe conditions and is suitable for various gases , Liquid pressure measurement. The pressure transmitter has a compact structure and is an ideal choice for installation in tight spaces in hazardous areas.

QTQ100 type is current output type

2

Core capacity advantage

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

3

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 QTQ100 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 has a protection level of IP67 and a solid internal structure design to ensure that the sensor can work normally in a high vibration environment.

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product features

◆The sputtering film ensures long-term stability better than ±0.2%FS/year

◆No oil filling, will not cause thermal instability or leakage

◆ Wide range of pressure selection, from 0.5MPa～250MPa

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

◆ Compact appearance, providing designers with maximum flexibility

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

◆ Reverse connection protection

◆ No glue, small creep

◆ The accuracy can be ensured in the temperature range of -40℃～+105℃

◆ Fully welded stainless steel structure

◆ IP65, IP67 protection level

7

application

* Ship * Refining

* Petroleum drilling * Chemical

* Gas pipeline network * Oil pipeline

* Coal* Flammable and explosive industries

8

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℃
Full-scale temperature drift	±0.3%FS/10℃
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	20 times	20 times	10 times	≤400MPa	≤400MPa

Note: higher overload pressure and failure pressure can be customized

Electrical parameters

Supply voltage	24VDC
load	Current output type: RL≤50×(Vcc-8)Ω
Insulation resistance	≥1000MΩ/500VDC
Output	4-20mA

Physical properties

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

Environmental parameters

Medium temperature range	-40～+105℃
Ambient temperature range	-40～+105℃
Storage temperature range	-40～+105℃
Random vibration	20g, GB/T2423.56-2006
Sinusoidal vibration	14.1g, GB/T2423.10-2008
Shock	50g,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
QTQ100	055 0.5 MPa	G2 G1/4 -19	A 4-20mA	01 M12X1
	105 1 MPa	N2 NPT 1/4		02 Direct outlet
	165 1.6 MPa	M6 M20X1.5
	255 2.5 MPa	M3 M12X1.5
	046 4 MPa	G1 G1 / 8
	066 6 MPa	G5 G1/4-19A
	106 10 MPa	G4 G1 / 2
	166 16 MPa	M4 M14X1.5
	256 25 MPa	M1 M8X1.25 internal thread
	406 40 MPa	Selection example: QTQ100 055 G2 A 01 =QTQ100 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.