Xi'an Dehou Electronic Technology Co., Ltd.
Xi'an Dehou Electronic Technology Co., Ltd.
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Discounted Hygienic 20mA NP-93420-IQ Pressure Sensor Transmitter
NP-93420-IQ Pressure Sensor Transmitter Working Principle
NP93420 series is the use of semiconductor piezoresistive effect and micro machining technology, in a single crystal silicon wafer of a specific crystal up, with photolithography, diffusion and other semiconductor processes to produce - Wheatstone bridge, the formation of sensitive diaphragm, when subjected to the action of external forces produce a slight change in resistivity changes, so that the bridge arm resistance changes (a pair becomes larger and a pair becomes smaller) in the excitation voltage signal output, after computer temperature compensation, laser resistance adjustment, signal amplification and other processing means and strict assembly testing, calibration and other processes to produce a pressure transmitter with a standard output signal.
NP-93420-IQ Pressure Sensor Transmitter Technical Parameters
| Typical application | liquid, gas, steam |
| Measurement Range | upper limit URL |
| Power supply | (12-36)VDC(±30%) |
| Environment temperature | -40~+85℃ |
| Process temperature | -25~+125℃(>+125℃ can be customized) |
| Signal Output | 4...20mADC/HART/RS485. |
| Damping time | 0.1～16s adjustable |
| Allowable overload | Less than or equal to twice the rated range |
| Long-term stability | ≤±0.2%F.S/year |
| Accuracy Level | 0.1 grade,0.2 grade |
| Housing material | Aluminum, stainless steel (optional) |
| Process connection | Flange, thread (optional) |
| Protection level | IP65(optional) |
| Explosion-proof grade | Exia II CT6,Exd II BT5(optional) |
NP-93420-IQ Pressure Sensor Transmitter Design Feature
1. Aluminum alloy die-casting shell, three-terminal isolation, electrostatic spraying protection layer, sturdy and durable.
2. 4-20mA DC two-wire signal transmission, strong anti-interference ability, long transmission distance.
3. LED, LCD, pointer three kinds of indication meter head, field reading is very convenient. Can be used to measure viscous, crystalline and corrosive media.
4. When applied to dangerous and explosive fields, the diffusion silicon pressure transmitter is used, the product has the characteristics of low current, low voltage, low power consumption, etc. It is an intrinsically safe explosion-proof product, and is equipped with an explosion-proof certificate.