Product Overview
QTQ000-series universal pressure sensor encapsulate the metal sputtering film pressure sensitive element independently developed and produced by Chntek. It is suitable for pressure measurement of various gases and liquids. The series offers a combined precision of 0.2%FS, 0.5%FS and 1%FS at pressures ranging from 0.5MPa to 250MPa. It has a rugged stainless steel case, up to THE IP65IP67 protection class, moisture-proof. Accurate measurements can be made even under the most severe conditions. It has the advantages of long - term fatigue resistance, wide temperature range, impact resistance and high reliability. It has a variety of output forms, pressure joints and electrical joints to meet the needs of a wide range of applications.
QTQ001 accuracy 0.2%FS
QTQ002 accuracy 0.5%FS
QTQ003 accuracy 1%FS
l Sputtering thin film pressure sensitive chip ensures long-term stability better than ±0.2%FS/year
l Advanced anti-interference, anti-surge circuit protection and high insulation pressure-resistant film materials
l Non-oil filled, all stainless steel structure, high stability, no potential leakage
l Wide pressure selection range, from 0.5MPa to 250MPa
l Fast response, response time less than 1ms
l Full range precision is optional: 0.2%, 0.5%, 1%
l Output optional current output, voltage output and proportional output
l Low hysteresis and good repeatability
l The compact shape provides maximum flexibility for the designer
l Low cost, can be used in bulk OEM units
l IP65, IP67 high protection level
Performance Parameter
accuracy | ±0.2%FS、±0.5%FS、±1%FS |
long-term stability | ≤±0.2%FS per year |
zero temperature drift | ±0.1%FS/10℃ or customized |
full scale temperature drift | ±0.3%FS/10℃ or customized |
response time | ≤1ms |
durability | 107 pressure cycles |
Range、Over-load Pressure & Failure Pressure
Range | 0.5-2.5 | 4-10 | 16-40 | 60 | 70 | 100 | 120-180 | 200 | 250 |
Over-load Pressure | 2 times | 2 times | 2 times | ≤300MPa | |||||
Failure Pressure | 40 times | 20 times | 10 times | ≤400MPa | ≤400MPa | ||||
Note: Higher over-load pressure and failure pressure can be customized
Electric Parameter
supply voltage | 8-32VDC、5VDC |
load | current output type:RL≤50×(Vcc-8)Ω |
insulation resistance | ≥1000MΩ/500VDC |
Output | 4-20mA, |
Physical Properties
material of sensitive element | 17-4PH |
pressure interface | details below |
electrical interface | details below |
Protection Degree | IP65/IP67 |
Environment Parameter
medium temperature range | -40~+85℃ |
environment temperature range | -40~+85℃ |
storage temperature range | -40~+85℃ |
random vibration | 14.1g,GB/T2423.56-2006 |
sinusoidal vibration | 10g,GB/T2423.10-2008 |
impact | 20g,11ms GB/T2423.5-1995 |
EMC-electromagnetic immunity | GB/T 17626.3-2016 |
EMC-Electrostatic discharge immunity | GB/T 17626.2-2018 |
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