When you require solid fluid level checking in challenging mechanical situations, the QS-P400 liquid level transmitter conveys remarkable execution. This hydrostatic pressure-based sensor offers nonstop checking with exceptional exactness from 0.5m to 500m H2O estimation extend. Built for strength and accuracy, our transmitter guarantees your forms run easily whereas giving the information you require for ideal control and safety.

The QS-P400 stands out with its strong development and brilliantly plan. You'll appreciate the inherently secure explosion-proof certification that makes it reasonable for perilous situations. The submersible plan rearranges establishment - basically lower it into your tank or vessel for quick operation.
Qintai building group planned this sensor to handle extraordinary conditions. Working temperatures from -40℃ to 100℃ guarantee solid execution over different applications. The IP68 security rating ensures total assurance against water entrance and dust.
Flexibility things in mechanical computerization. That's why we offer both two-wire and three-wire arrangements. Select from 4-20mA current yield or voltage yields of 0-5V and 0-10V to coordinate your existing control frameworks perfectly.
The wide power supply range accommodates various installation requirements. DC power supplies from 9-36V work seamlessly with most industrial control panels. This liquid level transmitter integrates effortlessly into your current infrastructure.
Precision drives efficiency. Qintai QS-P400 accomplishes precision levels of ±0.1%F.S, ±0.25%F.S, or ±0.5%F.S depending on your application needs. The commonplace solidness of 0.1%F.S guarantees steady readings over time, lessening support prerequisites and progressing handle reliability.
Fast reaction time of fair 10ms empowers real-time checking for energetic forms. Whether you're overseeing stock levels or controlling computerized filling frameworks, you get the prompt criticism fundamental for exact control.
| Items | Specifications |
|---|---|
| Measurement Range | 0~0.5…500mH2O |
| Overload Pressure | 1.5 times of full range |
| Failure Pressure | 3 times of full range |
| Accuracy | ±0.1%F.S, ±0.25%F.S, ±0.5%F.S |
| Stability | Typical: 0.1%F.S, Maximum: 0.2%F.S |
| Operation Temperature | -40℃~100℃ |
| Offset Temperature | -10℃~70℃ |
| Medium Compatibility | All corrosive medium compatible with 1Cr18Ni9Ti and 316L |
| Signal Output | 4~20mA, 0~5V, 0~10V |
| Power Supply | 9~36Vdc, 10~36Vdc/ac, 12~36Vdc/ac |
| Load Resistance | (U-10)/0.02(Ω), >100kΩ |
| Insulation | >100MΩ@50V |
| IP Rating | IP68 |
| Response Time | 10ms |
| Pressure Form | Gauge pressure and absolute pressure |
| Certification | Intrinsic safety, CE |
Chemical compatibility sets our transmitter separated. The 1Cr18Ni9Ti and 316L stainless steel development stands up to erosion from forceful media. This makes it culminate for chemical handling, wastewater treatment, and petrochemical applications where conventional sensors fail.
You can unquestionably send this unit in acidic, soluble, or dissolvable situations. The strong materials guarantee long benefit life, decreasing substitution costs and support downtime.
Process businesses depend on precise level estimation for security and effectiveness. The QS-P400 exceeds expectations in:
Simple establishment spares time and cash. The submersible plan disposes of complex mounting strategies. Drop the sensor into position, interface the cable, and start observing immediately.
Cable choices incorporate 2-wire, 3-wire, and protected setups in PE, PUR, or PTFE materials. Select the cable sort that matches your natural conditions and establishment requirements.

Xi'an Qintai's commitment to quality appears in our comprehensive certifications. ISO9001 and IATF16949 quality administration frameworks guarantee reliable fabricating benchmarks. Our inborn security and CE certifications give certainty for worldwide installations.
With over 20 a long time of sensor fabricating involvement and 58 innovation licenses, we bring demonstrated mastery to each transmitter we create. Qintai position as China's No. 1 advertise share pioneer reflects the believe major producers put in our technology.
Modern mechanical situations request strong electromagnetic execution. Our transmitter meets EN50081-1/-2 radiation guidelines and EN50082-2 affectability necessities. This guarantees dependable operation close engines, drives, and remote equipment.




Every application has unique requirements. Qintai 86-person R&D team provides comprehensive technical support and customization services. Whether you need modified ranges, special materials, or custom outputs, we adapt our liquid level transmitter to your specific needs.
Ready to upgrade your level monitoring system? Contact us at info@qt-sensor.com for technical specifications, pricing, and application guidance. Our experienced engineers help you select the optimal configuration for reliable, long-term performance.
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.