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이메일
wangguijiang@bjguancheng.com
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전화
18513000801
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주소
Room 104, Building C, Hongxianghong Enterprise Incubation Base, Beiqijia Town, Changping District, Beijing
Beijing Guancheng Measurement Technology Co., Ltd
wangguijiang@bjguancheng.com
18513000801
Room 104, Building C, Hongxianghong Enterprise Incubation Base, Beiqijia Town, Changping District, Beijing
Product Features
Adopting a diffused silicon sensor with 0.075% high precision, 20:1 wide range ratio, high stability and reliability, and equipped with HART communication function,
It has intrinsic safety, explosion-proof type, optional isolation membrane structure, multiple process connection standards, and is suitable for micro pressure, high temperature and high pressure
Pressure measurement under low temperature and corrosive conditions.
working principle
Using semiconductor planar process technology to fabricate resistance bridges on silicon wafers. The medium pressure causes the metal diaphragm to shift,
Transfer pressure to the resistance bridge circuit through an intermediary fluid. The resistance bridge circuit will output a line with the pressure signal when subjected to pressure
The pressure signals of sexual relationships are further processed by electronic components and converted into standard signal outputs.
Technical Specifications
·Measurement range
The minimum measurement range of relative pressure is (0-400) Pa; Maximum measurement range (0-35) MPa
Minimum measurement range of absolute pressure (0-1.75) KPa; Maximum measurement range (0-35) MPa
Minimum measurement range of negative relative pressure (-500~500) Pa; Maximum measurement range (-0.1~3.5) MPa
·Measurement accuracy
The comprehensive error (including linearity, repeatability, and hysteresis) is better than 0.1%, and can be set at 0.075 for special requirements
1: 1~10:1 range ratio of 0.1% set range,
10: 1~20:1 Range ratio: (0.05%+0.01% × TD)% Set range
·Long term stability
Exceeding 0.15% F.S annually; Better than 0.2% F.S in five years
·Allowable medium temperature
(-40~120)℃
·Allow ambient temperature
(-40~85)℃
·Allow storage temperature
(-40~85)℃
·Temperature influence
Relative to the standard range of 25 ℃≤± 0.4%
·Damping
0~40S continuously adjustable
·Anti vibration
2g 1000HZ ±0.05%g
·Impact resistance
50g 11mesc
·Electromagnetic compatibility characteristics
Compliant with IEC801 standard
·Sensors allow for overvoltage
3 times the standard range pressure
·Signal output
4-20mA linear output two-wire system with HART communication protocol
Zero point minimum alarm current range: 3.8mA
Maximum alarm current range at full capacity: 21mA
·Start time
3S without preheating required
·Contact with medium
Process connectors: Stainless steel 316, Hastelloy C
Partial materials
Sensor diaphragm: stainless steel 316, Hastelloy C
·Non contact with the medium
Shell: Die cast aluminum strip with epoxy resin coating
Partial materials
Sensor filling liquid silicone oil anaerobic oil
·On site display
LCD 3 1/2 precision digital display LCD analog strip display
·Protection level
IP66
·Weight
About 1kg
·Explosion proof grade
Explosion proof Ex d Ⅱ C T5, intrinsically safe Ex ia Ⅱ C T5
·Allow environmental humidity
100%RH
Exterior structure
Connection Standard (1)
1. External thread screw in connection, 2. Thread standard G1A, G1 half A, G2A, 3. Connection material is stainless steel 3044. Diaphragm corrugated sheet material: stainless steel 316L, 5HastelloyC, 6. Special requirements agreed uponConnection Standard (2)
1. Sanitary lock female pressure rotary connection, 2. Connection standard DIN11851, 3. DN32, DN40, DN50, PN4MPa
4. The material of the connecting piece is stainless steel 304, and the material of the diaphragm corrugated sheet is stainless steel 316L,6. Special requirements agreed upon
Connection Standard (III)
1. Flange connection, 2. Connection standard GB9123-2000, 3. DN50, DN80, PN4MPa
4. Material of connector: stainless steel 304, 5. Material of diaphragm corrugated sheet: stainless steel 316L, 6. PTFE coating7. Hastelloy C276, tantalum, 316L, 8. Special requirements agreed upon
Connection Standard (IV)
Order Selection Table
1. Welded threaded connection, 2. Connection standard M20 × 1.5 inner hole with a diameter of 10, 3. Connection material stainless steel 304
4. Diaphragm corrugated sheet material: stainless steel 316L, 5. Hastelloy C276, 6. Special requirements agreed upon