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UC800 Project Special Pressure Transmitter
Description
UC800 Project Special Pressure Transmitter is the result of a combination of self-developed anti-jamming, high stability digital circuits and the introduction of foreign Single crystal resonant silicon sensor technology. Its performance much better than our domestic metal capacitive sensor technology transmitter, and main show in the field zero stability and long-term operation stability, and rapid response.
Feature
Single crystal resonant silicon sensor technology
Super performance, use to measure pressure, differential pressure and temperature..
Accuracy: ±0.075%~±0.1%F.S/±0.2%F.S
Stability: ≤0.2%
Standard 4～20mA,RS-485 communication interface
Support upgrade of basic scene control technique
Little temperature effect
Little static effect
Overload can reach 2 times
Application
Compatible with 316LSS,noncorrosive liquids.
Shipping and aviation industry.
Hydraulic pressure and pneumatic control system
Apply in Petroleum industry, chemical industry, electric power, metallurgy, hydrology etc process control.
Range
| Range code | Range | Measuring range | |
| Min. | Max. | ||
| 4 | 0.374KPa | 37.4KPa | -37.4～37.4KPa |
| 5 | 1.868KPa | 186.8KPa | -186.8～186.8KPa |
| 6 | 6.9KPa | 690KPa | -690～690KPa |
| 7 | 20.68KPa | 2068KPa | -2068～2068KPa |
Technical Data
| Output | Analog output: two –wire 4-20mADC |
| Digital output: two –wire 4-20mADC and superimposing variable digital signal accord with HART | |
| Power supply | supply voltage 24VDC |
| Limit load | Max load resistor Rmax in loop decided by the supply voltage, see the below drawing. HART PROTOCOL require the load resistor not less than 250Ω,not more than 600Ω |
| Communication distance | Max. 1.5Km, multi-address communication can connect 15 smart transmitters Max. |
| Display | 4 digital display,5 digit LCD display, pointer type. |
| Explosion-proof | ExiaIICT5;explosion suppression type |
| Zero offset | Can positive transfer or negative transfer, but can not overstep the utmost value |
| Temperature | ambient temperature -40-85℃(When choose LCD : -20-70℃) |
| Medium temperature | -40～104℃ |
| Static pressure and single side overpressure | 3.45KPa(absolute pressure)～31.2MPa（gauge pressure） |
| Relative humidity | 5～98%RH |
| Run-up time | less than 5 sec. |
| Capability change | Less than 0.16cm3 |
| Damp adjust | 0.20～25 second |
| Malfunction alarming | If occur malfunction, automatism diagnose function will output 3.9 or 21.0mA |
| Configuration protection | To avoid the datas are modified random, can utilize software or protect switch lock the record data |
Performance Data
| Reference condition | zero is the lower limit and not offset, temperature 25℃, Atmospheric pressure, 24VDC power, silicon oil , diaphragm 316L, data adjust range the same as the up and lower limit of the range. |
| Accuracy | ±0.075～±0.2% |
| Stability | ≤0.2%URL/year |
| Tem. influence | ±（0.05%URL＋0.15%FS＋200Pa）20℃ |
| Static pressure influence | zero error 0.1URL/6.9Mpa; Zero error 0.1URL/1.7MPa |
| Vibration influence | withstand frequency 200Hz at any direction, arouse error ±0.05%URL |
| Power influence | ＜0.005%/V |
| Load influence | no load influence |
| Mounting position influence | about 250Pa zero offset, can be eliminate via calibration, no range influence. |
| RF interference influence | drift is ±0.1%span in the condition of 30-1000MHz frequency and the most field intensity 10V/m |
Configuration parameter
| wetted material | Diaphragm: 316LSS, Hastelloy , Monel or Tantalum Vent /drain valve:316LSS, Hastelloy , Monel or Tantalum Flange and joint : steel coated with cadmiumed ,galvanized steel, 316L SS, Hastelloy O-ring: Fluorin rubber |
| other material | Filled: silicon oil Bolt: galvanized steel Electric housing: low copper and aluminium alloy. Cover O-ring: NBR Coating: polyester epoxy resin |
| Pressure port | Flange connection: 1/4-18NPT Joint pressure port：1/2-14NPT |
| Electrical connection | Lead tube connection: M20X1.5、1/2-14NPT |
| Weight | 5kg（no include option parts） |
Note:The model belongs to the project special pressure transmitter ,all data can be custom according to the customers requirements.
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