• • • Overview of Product • • •
MS1148 micro differential pressure / air pressure transducer is designed with German HELM made high – quality set, adopting normalized deign of circuit and assembly process as well as unique sensor stress isolating technology, to convert the differential pressure signal of the medium measured into 4 ~ 20mA or 1 ~ 5V DC standard signal through temperature compensation and amplification process of high – stability signal. High – quality sensor, normalized design of circuit, advanced encapsulated technology as well as improved assembling process ensure superior quality and best performance of this series of product.
• • • Features of Product • • •
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1.High ratio of performance to ratio
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2. From 0 ~ 0.5KPa to 0 ~ 700KPa
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3. Continuously adjustable zero point and full scale
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4. Reverse pole protection and current limit protection
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5. Lightning, radio frequency immunity
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6. Compact structure, beautiful appearance, and easy installation
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7. Normalized design and production to ensure stable quality and performance of the product
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8. May be designed or improved as per the customer’s specific requirements
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• • • Application of Product • • •
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1. Measurement of air pressure and flow rate in industrial process
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2. HVAC
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3. Hearth pressure or hearth negative pressure
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4. Monitoring in – the – well ventilation
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5. Purification equipment and cleaning engineering
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6. Flue dust control and protection of environment
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7. Drying chamber pressure boosting and furnace ventilation control
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8. Medial instrument and equipment
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9. Air fan measurement and control
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• • • Technical Data• • •
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Measuring range
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Differential pressure / air pressure : 0 ~ 500Pa…700KPa
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Negative pressure: 0 ~ -500Pa…-1KPa…-5KPa…-10KPa…-50KPa…-100KPa
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Permissible over pressure
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Three times of FS pressure
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Pressure type
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Gauge pressure or absolute pressure
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Medium to be measured
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Non – corrosive, dust and powder free, and dry fluid
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Overall accuracy
(Non-linear, repeatability, lagging)
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± 0.1% FS
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± 0.25% FS
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± 0.4% FS
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Medium temperature
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-20 ~ +85 °C
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Compensating temperature
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-10 ~ +55 °C
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Ambient temperature
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-10 ~ +80 °C
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Zero point temperature drifting
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Typical: ± 0.02% FS
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Maximum: ± 0.05% FS / °C
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Sensitivity temperature drifting
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Typical: ± 0.02% FS
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Maximum: ± 0.05% FS / °C
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Long – term stability
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Typical: ± 0.1% FS / year
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Maximum: ± 0.2% FS / year
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Range of power supplying
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12 ~ 36V DC (24V DC generally)
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Signal output
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4 ~ 20mA / 1 ~ 5V DC/ 0 ~ 5V DC/ 0.5 ~ 4.5V DC
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Load resistance
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≤ (U-12) / 0.02Ω
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Protection degree
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IP 65 or IP 67
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Process Connection
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φ8 tip, with M10×1 installing screws
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Explosion – proof marking
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Ex ia II CT5
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Weight
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Approx. 0.35kg
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Response time
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≤2 ms
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Thermal lagging
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± 0.01% FS (typical)
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Vibrating tolerance
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≤ ± 0.01% FS ( Axles X, Y , Z,200Hz / g )
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Structural material
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Hard aluminum alloy surface plastic injection or 304 stainless steel
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Dielectric strength / RF degree
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EN 50081–1; EN 50082–2; IEC 61000–4–3
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Pressure connection
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See product selection table and process connecting drawing (may be defined by the customer).
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Electrical wiring connection
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See product selection table and process connecting drawing (may be defined by the customer).
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Insulation resistance
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100MΩ, 500V DC
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