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QTQ401/402 weighing pressure sensor

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CONTACT US

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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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QTQ401/402 weighing pressure sensor

The QTQ400 series weighing pressure sensor is packaged with a metal-based pressure-sensitive chip independently developed and produced by our company. It is designed for weighing equipment that uses hydraulic loading such as loaders, forklifts, forklifts, and excavators. The pressure sensor has an accuracy rating of 0.2% FS, which is very suitable for dynamic and static measurement tasks. It can weigh objects in the excavator bucket or determine the weight on forklift forks, and can be used as a weight measurement in trade applications. The product has a wide selection of output forms, electrical and pressure connections, impact resistance, high reliability, and high temperature resistance. It can work stably for a long time at -40 to 105°C and is suitable for most applications.

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Category：Pressure sensor/transmitter

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Product description

Parameters

1

product description

The QTQ400 series weighing pressure sensor is packaged with a metal-based pressure-sensitive chip independently developed and produced by our company. It is designed for the weighing of hydraulically loaded equipment such as loaders, forklifts, forklifts, and excavators. The accuracy level of the pressure sensor can reach 0.2% FS, which is very suitable for dynamic and static measurement tasks. It can weigh objects in the excavator bucket or determine the weight on forklift forks. It can be used as a weight measurement in trade applications. The product has a wide range of output forms, electrical and pressure connections, impact resistance, high reliability, and high temperature resistance. It can work stably for a long time at -40 to 105°C, and is suitable for most applications.

QTQ401 mV signal

QTQ402 type with conditioning

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.

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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 QTQ400 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

◆ Small size, light weight, easy installation

◆Good long-term stability and high precision

◆It can be matched with various weighing instruments

◆Good anti-vibration, anti-shock and overload capacity

◆Corrosion resistance, high temperature resistance, small temperature drift

◆Can be installed in any location

◆Static and dynamic pressure measurement

◆Multiple connection methods

◆Voltage and current output signals are optional

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application

* Loader * Forklift

* Forklift * Excavator and other weighing

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Product parameter

Performance parameter

Accuracy	± 0.2% FS 、 ± 0.3% 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	10 ⁷ pressure cycles

Range, overload pressure and failure pressure

Range MPa	1-6	16-60	70	100
Overload pressure	2 times	2 times	1.5 times
Breaking pressure	20 times	10 times and ≤400MPa	≤400MPa

Note: higher overload pressure and failure pressure can be customized

Electrical parameters

Supply voltage	8-32VDC、5VDC
load	Current output type: RL≤5 0×(Vcc-8)Ω Voltage output type: RL≥2KΩ
Insulation resistance	≥1000MΩ/500VDC

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 deg.] C ~ + 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
QTQ401 mV signal	166 16 MPa	G2 G1/4 -19	A 4-20mA	01 M12X1
QTQ401 mV signal	206 20 MPa	M3 M12X1.5	I millivolt signal output	02 Direct outlet
QTQ402 with conditioning	256 25 MPa	G1 G1 / 8		03 Packard connector
QTQ402 with conditioning	406 40 MPa	G5 G1/4-19A		04 Hessman connector
	506 50 MPa	G4 G1 / 2		05 AMP connector
	606 60 MPa	M4 M14X1.5
		M1 M8X1.25 internal thread
		M2 M10X1

Selection example: QTQ401 166 G2 A 01 =QTQ401mV Signal range: 16MPa 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 Kai Thai Sensing sales engineer, request more detailed information and selection suggestions. Qitai Sensing serves you wholeheartedly.