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Phone/Fax: +7-(48532) 546-74; 533-53 E-mail: info@sktbelpa.ru

 

DOWNHOLE QUARTZ PRESSURE AND TEMPERATURE TRANSDUCER PDTK-P-MS

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PDTK-P-MS30 mix rus


 APPLICATIONS
Quartz pressure transducer PDTK-P-MS provides the precision pressure measurement of hostile environment with a capability of compensation of a temperature error in an interval of operation temperatures.
The remarkable performance of these transducers is achieved through the use of a precision quartz crystal resonator whose frequency of oscillation varies with pressure-induced stress. A quartz crystal temperature signal is provided a capability to thermally compensate the measured pressure and achieve high accuracy over a broad range of temperatures.
The transducer has a stainless steel bellow or membrane as a separator. The remarkable performance of these transducers is achieved through the use of a precision quartz crystal resonator whose frequency of oscillation varies with pressure-induced stress. A quartz crystal temperature signal is provided a capability to thermally compensate measured pressure and achieve high accuracy over a broad range of temperatures.

-     Geophysical and barometric reference
-     Pressure diagnostics equipment in a hole
-     High accuracy pressure standard (0.06%FS*)
-     Stainless steel or duraluminium case

ITEM SPECIFICATIONS REMARKS
Pressure ranges P from 0.07% FS to 20 MPa
from 0.07% FS to40 MPa
from 0.07% FS to60 MPa
from 0.07% FS to80 MPa
Operating Temperature Range, TOPR typical (limiting TOPR) 0 ... +100 (120)°C
higher (limiting TOPR) 0 ... +125 (130)°C
maximum possible (limiting TOPR) 0 ... +150 (160)°C

For MS-22,23,25 till 20;40;60 MPa

For MS-30 till 40 Mpa

Average working time under the limiting TOPR not less 1000 hours
Pressure Accuracy (γ) with application of algorithm of indemnification in a typical range of temperatures no more: 0.15%
0.1 %
0.06%
Additional error in operating temperature range on each     10 °C from 20 °C no more: ± 0.05γ
Temperature Accuracy ± 0.3 °С
Pressure Resolution ± 0.0005 %
Temperature Resolution ± 0.005 °С
Frequency output Pressure signal output “4” (Fp). Frequency ranges 46 kHz .. 48 kHz **
0.4 kHz .. 0.6 kHz ***
Frequency deviation (sensitivity) in pressure range not less 1.3 .. 4.0 kHz
Temperature signal output “3” (Ft). Frequency ranges 32 kHz...33 kHz **
0.3 kHz .. 1 kHz ***
Zero drift no more γ till 125 °C 2γ till 150 °C

Dependence of pressure on frequency of the temperature channel and the pressure channel is presented by a polynomial:
1) P=P0+a1(Ft)+a2(Ft)2+a3(Fp)+a4(Fp)2+a5(Ft)*(Fp);
2) P=P0+b1(Ft)+b2(Ft)2+b3(Fp)+b4(Fp)2+b5(Ft)*(Fp)+b6(Ft)2*(Fp)+b7(Ft)*(Fp)2+b8(Ft)2*(Fp)2+b9*(Fp)3+b10*Ft*Fp3+b11*Ft2*Fp3,
where Р0, а1-a5, ,b1-b11 – coefficients from the data set on the transducer

Output amplitude at Rl≥0.5 kOm and Cl≤20 nF ≤0.7xVsup V
Consumption current no more 0.8 mA;2 mA; 10 mA
Inputsupplyvoltage, Vsup 2.8.. 5 V
Weight no more 350 gm For MS-24,30 - 130 gm
Calibration interval 1 year

Possible variants of the PDTK-P-MS

Example for order:

PDTK-20-MS-22-1-2-1-1-3 - pressure transducer with:
- pressure range from 0.07% FS to 20 MPa,

- higher temperature range from 0 to +125 °C (limiting temperature +130) °C,
- pressure accuracy 0.06 %,

- frequency output on self-resonant frequency,
- consumption current – 0.8 mA.  

  PDTK-P-MS-22 

PDTK-P-MS-22

PDTK-P-MS-23

pdtk mc 23

 

  PDTK-P-MS-24

pdtk p ms24 en

 

PDTK-P-MS-25

PDTK-P-MS-25

PDTK-P-MS-30

pdtk p ms30 en

 

Plug in

rs4tv-eng

 

 

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ВЫ НА СТРАНИЦЕ: Products Quarttz pressure and temperature transducers DOWNHOLE QUARTZ PRESSURE AND TEMPERATURE TRANSDUCER PDTK-P-MS
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