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HM90 High - frequency Dynamic Pressure Transducer

Description

In such scientific test and modern instruments and meters as military engineering, chemical explosion test, petroleum investigation and mining as well as petroleum well test, material, mechanics, civil engineering, geo – mechanics, trauma medical, hydraulic power mechanical test etc, undistorted measurement of some frequently – changing, fast and steep pressure wave form rise is made for the dynamic pressure form, amplitude, and effective value, it is required that the pressure sensors used shall have high intrinsic frequency, very short rising time, and wide and good response frequency band to ensure sufficient dynamic pressure measuring accuracy. HM90 high - frequency dynamic pressure transducer is specially designed for this purpose. It adopts German HELM made high – performance chip, using micro machining technology to make the integrated silicon chip small effective dimensions, and high intrinsic frequency. It features good elastic mechanics characteristics, of which comprehensive perform is better than that of piezoresistive dynamic pressure sensor. It is ideal for dynamic pressure measurement.

Details

Technical Data 

 

HM90 High - frequency Dynamic Pressure Transducer

Measuring range

-100KPa ~ 0 ~ 1Kpa ...20KPa … 100MPa

Overloading capacity

Two times of FS pressure ((where over pressure for 100MPa is designed with 1.1 times of FS pressure)

Pressure type

Gauge pressure or absolute pressure

Medium to be measured

The gas or liquid compatible with 316 stainless steel

Overall accuracy

0.1% FS

0.25% FS

0.4% FS

Intrinsic frequency

150KHz ~ 700KHz

500KHz ~ 1MHz

1MHz ~ 2MHz

Band width of transducer

0 ~ 1KHz ~ 3KHz

0 ~ 20KHz

0 ~ 200KHz

Rising time

0 ~ 0.2mS ~ 75μS

0 ~ 12μS

0 ~ 1μS

Long-term stability

Typical: ± 0.1% FS / year

Maximum: ± 0.02% FS / year

Operating temperature

-40℃ ~ 85℃ (generally)

-10℃ ~ 250℃ (Specially)

Zero point temperature drifting

Typical: ± 0.02% FS  / ℃

Maximum: ± 0.05% FS / ℃

Sensitivity temperature drifting

Typical: ± 0.02% FS  / ℃

Maximum: ± 0.05% FS /  ℃

Range of power supplying

12 ~ 36V DC (24V DC generally)

Signal output

4  ~ 20mA / 1 ~ 5V DC / 0 ~ 5V DC

Load resistance

≤ (U-12) / 0.02Ω

Enclosure protective degree

Plug type (IP 65); Cable type (IP 67)

Response time

≤3 ms

Tolerance of vibration

≤ ± 0.01% FS ( Axles X, Y , Z, 200Hz / g )

Port and enclosure

Stainless steel 1Cr18Ni9Ti

O-ring

Fluorubber

Sensor membrane

Stainless steel 316L or mono – crystalline silicon

Safe explosion – proof

Ex ia II CT5

Insulation resistance

100MΩ 500V DC

Resolution

Infinite small (theoretical) 1 / 100000 (general)  

 


 HM90 High - frequency Dynamic Pressure Transducer

• • • Features of Product • • •

 

• • • Application of Product • • •

☆ Provided with enclosure fully made of stainless steel, with excellent corrosion resistant performance

 

 

☆military engineering

☆ Wide pressure measuring range

 

☆  Chemical explosion test

☆ Intrinsic frequency up to 2MHz

 

☆  Petroleum investigation and mining as well as petroleum well test

☆ Working stability

 

☆  Mechanics

☆ Strong disturbance immunity

 

☆  Civil engineering

☆ Genuine imported set with stable performance

 

☆  Geo – mechanic

☆ Small dimensions, light weight, full variants and high ratio of performance to costs

 

☆ Trauma medical

☆ Wide range of measuring medium

 

☆ Hydraulic power mechanical test

HM90

High - frequency Dynamic  Pres. Transducer 

 

Guideline of Selection

 

Type of pressure

Gauge pressure ( G, may not be indicated), Absolute pressure (A)

 

 

Range

Measuring Range

 

 

(0 ~ X KPa or 0 ~ X MPa

 

 

 

Code

Band width of transducer

 

 

 

H1

0 ~ 1KHz ~ 3KHz

 

 

 

H2

0 ~ 20KHz

 

 

 

H3

0 ~ 200KHz

 

 

 

 

 

Code

Overall accuracy (linear + repeatability + lagging)

 

 

 

 

 

1

 ± 0.4% FS

 

 

 

 

 

2

 ± 0.25% FS

 

 

 

 

 

3

 ± 0.15% FS

 

 

 

 

 

 

 

Code

Signal Output

 

 

 

 

 

 

 

A1

4 ~ 20mA

 

 

 

 

 

 

 

V1

1 ~ 5V DC

 

 

 

 

 

 

 

V2

0 ~ 5V DC

 

 

 

 

 

 

 

 

 

Code 

Additional functions

 

 

 

 

 

 

 

 

 

F1

M20 x 1.5 external thread

 

 

 

 

 

 

 

 

 

F2

G 1 / 4 external thread

 

 

 

 

 

 

 

 

 

F0

Special

 

 

 

 

 

 

 

 

 

W1

Cable type (IP67, 2m)

 

 

 

 

 

 

 

 

 

W2

Socket type (IP65, DIN 43650)

 

 

 

 

 

 

 

 

 

P

Flushed membrane

 

 

 

 

 

 

 

 

 

E

Intrinsically safe explosion - proof type Ex ia II CT5

 

 

 

 

 

 

 

 

 

T1

Free field (specially used for blasting)

 

 

 

 

 

 

 

 

 

T2

High - temperature resistant type: Up to 250 ℃ for balancing operating
Up to 2000 ℃ for transient

 

 

 

 

 

 

 

 

 

 

 

 

HM90    ( 0 ~ 500KPa)

 — H1

— 1

— V2

— F1

— W1 -E -T2  High - frequency Dynamic  Pres. Transducer 

Tips of Selection

  1. The frequency output of the product may be optional three items (H1, H2, and H3). The user may determine the most suitable range of frequency output to selection of product more economical according to industrial and mining requirements.
  2. Please contact us in case of the other special requirements and clearly indicate them when placing an order.

Document Download

 

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