- Contact Person : Ms. moshu caren
- Company Name : Xi'an Moshu Instrument Co., Ltd.
- Tel : 86-029-87305086
- Fax : 86-029-87305086
- Address : Shaanxi,xi'an,Room 21704, Unit 2, Kaichuang International Business Center,No. 31, Gaoxin Road, High-Tech Area
- Country/Region : China
- Zip : 710075
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• • • Overview of Pressure Transmitter • • •
MS327 series of vacuum / absolute pressure transmitter is a new series of product specially used for vacuum measuring
control released in China by German HELM, which fully has solved the problem of difficult vacuum measurement.
This series of product has three variants i.e. MS327G negative pressure transducer, MS327A absolute pressure
transducer, MS327CA capacitor thin membrane absolute pressure transducer, which has widely been used for
such fields as pharmaceutical, medical equipment, airspace and aerospace, scientific research, leakage detection,
accessories of automation equipment.
MS327G negative pressure transmitter adopts HELM mono – crystalline silicon thick – membrane sensor,
provided with high –accuracy signal processing circuit, with performance stability and reliability, which has
solved such disadvantages of domestic diffused silicon – type negative vacuum product as unstable signal
and short service life. The normal ranges are 0 ~ 100KPa and 0 ~ 50KPa etc.
MS327A negative pressure transmitter adopts such new high technologies of German HELM as advanced absolute
pressure chip, temperature automatic compensation, and normalized circuit commissioning etc. to expand the
absolute pressure range to 5KPa, as a minimal, and to greatly enhance the overall accuracy of the product.
This variant features advanced technology, superior performance, reliable quality, small dimensions.
It features more advantages and high ratio of performance to cost
comparing with the same type of domestic absolute pressure product.
MS327CA capacitor thin – membrane absolute pressure transmitter is a vacuum pressure gauge made in China through
introduction of capacitor thin membrane from German HELM and internationally advanced calibration and production
equipment.This product adopts the capacitor capacity changing principle to work, of which minimum scale may be up to
0.02MPa ~ 200MPa of absolute pressure, without influenced by the category and composite of the medium to be detected
when detecting, with output of standard electrical signal, may be remote transferring, easily intellectual control by
micro – processor. It is ideal for measurement of low vacuum pressure.
• • • Technical Data of Pressure Transmitter • • •
Medium to be measured | The gas or liquid, and compatible with 316 stainless steel | |||
Type of pressure | gauge pressure, absolute pressure, differential pressure | |||
Overloading capacity | Two times of full–scale over pressure (where over pressure for 100MPa is designed with 1.1 times of FS pressure) | |||
Measuring range | Negative gauge pressure: 0 ~ -5KPa…-50KPa…-100Kpa Silicon – type absolute pressure: 0 ~ 5KPa…10KPa…20KPa ~ 100KPa…200KPa…1Mpa Capacitor thin – membrane absolute pressure: 0.02Pa ~ 200Pa, 1Pa ~ 1KPa | |||
Overall accuracy | ± 0.1% FS | ± 0.25% FS | ± 0.5% FS | |
Long – term stability | Typical: ± 0.1% FS | Maximum: ± 0.15% FS | ||
Range of operating temperature | -20~+85°C | |||
Range of Compensating temperature | -10~+60°C | |||
Ambient temperature | -20~+80°C | |||
Zero point temperature drifting | Typical: ± 0.01% FS / °C | Maximum: ± 0.15% FS / °C | ||
Sensitivity temperature drifting | Typical: ± 0.01% FS / °C | Maximum: ± 0.15% FS / °C | ||
Range of power supplying | 12 ~ 36V DC ( generally 24V DC) | |||
Signal output | 4~20mA / 1-5V DC / 0~5V DC/0.5~4.5VDC | |||
Load resistance | ≤(U - 12) / 0.02Ω | |||
dielectric resistance | >2000MΩ(100VDC) | |||
Enclosure protection degree | Plug type (IP65); cable type (IP67) | |||
Safe explosion – proof | Ex ia II CT5 | |||
Weight | Approx.500g | |||
Tolerance of vibration | The change of output< 0.01% FS, when mechanical vibration frequency between20HZ and 1000Hz) | |||
Dielectric strength / RF degree | EN 50081–1; EN 50082–2; IEC 61000–4–3 | |||
Pressure connection | See product selection table and process connecting drawing (may be defined by the customer). | |||
Electrical wiring connection | See product selection table and process connecting drawing (may be defined by the customer). | |||
Signal wire jack | φ8 for cable port | |||
Response time (10% ~ 90%) | ≤1ms | |||
The material of structure | 1Cr18Ni9Ti | |||
Sealing structure | NBR, PTFE or Fluorubber |
• • • Features of Pressure Transmitter • • •
Fully provided with German HELL made high – accuracy sensing elements, with maximum accuracy up to 0.1% FSStable and reliable performance, may be continuously operated for a long time, with good long – term stabilityMay apply to measure corrosive medium under special requirementsStrong overloading immunityFast responsMay be used for hazardous site, with intrinsically safe type Ex ia II CT5Structural diversification, design may be customized at the customer’s special requirements.Best Price and High accuracy Vacuum Pressure Tansmitter MS327