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Sensor de pressão

Techno Supply  »  Produtos  »  Honeywell  »  Sensor de pressão
Sensor de pressão
Fabricante
Sensor de pressão
Principais características

Features

• ±0.1 % high accuracy BFSL;
±0.2 % standard accuracy BFSL
• All-welded one-piece, hermetically sealed, stainless-steel
construction
• Inconel® X-750 wetted parts for additional durability with
abrasive or corrosive media
• Multiple electrical connections
• Optional one-wire (with IS approval) or two-wire (without
IS approval) shunt calibration allows users the ability to
validate the offset signal in the field, ensuring the sensor is
actively plugged into the system
• RFI/EMI protected
• Intrinsically safe
• CE approved; CSA/ATEX certification

Potential Applications

• Acidizing
• Choke manifold
• Fracturing and cementing
• Mud pumps / mud logging
• New well development and extraction
• Oil and gas drilling
• Service and cement trucks
• Standpipe
• Stimulation
• Well head measurement 

VISÃO GERAL

Description

Honeywell’s Model 425 Wing Union/Hammer Union Pressure
Sensors are rugged devices designed for use with Weco® 1502
fittings for both offshore and land-based oil and gas applications.

Available in two accuracy levels [±0.2 % BFSL (Best Fit Straight
Line) - Standard] or (±0.1 % BFSL - High Accuracy), Model 425
is typically used in demanding applications such as well stimulation
and circulation systems. The higher accuracy option at ±0.1
% full scale provides more confidence in the actual measured
pressure value, particularly for smaller changes in pressure, allowing
drilling operation adjustments as needed.
Model 425 is constructed as an all-welded, stainless steel
assembly with the sensor diaphragm and wing union fitting machined
as one part. This helps ensure hermetic integrity, which
lessens the chance of media leakage vs. multi-piece parts, and
increases reliability. The isolated, pressure sensing diaphragm
minimizes zero-shift during hammer up and eliminates long term,
signal drift in the field. The Weco® 1502 (2 in) Wing Union compatible
fittings are machined of Inconel® X-750, which provides
additional durability with highly abrasive and corrosive media,
while the Honeywell proprietary stainless steel electrical connection
delivers enhanced secondary pressure containment.
Each sensor undergoes special assembly processes to test
shock and vibration for reliable performance in the field. 

DETALHES TÉCNICOS

Performance Specifications

Pressure ranges

0 psi to 5000 psi; 0 psi to 6000 psi; 0 psi
to 10000 psi; 0 psi to 15000 psi; 0 psi
to 20000 psi3
; 0 bar to 350 bar; 0 bar to
400 bar; 0 bar to 700 bar; 0 bar to 1000
bar; 0 bar to 1350 bar

Accuracy

±0.1 % (total error) best fit straight line
±0.2 % (total error) best fit straight line

Calibration

Standard 5-point calibration:
0 %, 50 %, and 100 % of full scale

Output

4 mA to 20 mA, two-wire

Resolution

Infinite

 

Environmental Specifications

Temperature, operating

-43 °C to 85 °C [-45 °F to 185 °F]*

Temperature, compensating

-34 °C to 82 °C [-30 °F to 180 °F]

Temperature effect, zero

0.018 % full scale/°C
[0.01 % full scale/°F]

Temperature effect, span

0.018 % reading/°C [0.01 % reading/°F]

Temperature effect, sealing

Hermetically sealed IP68/NEMA 6P

 

Electrical Specifications

Supply voltage

9 Vdc to 28 Vdc

Insulation resistance

>100 MOhm @ 50 Vdc

Max. loop resistance

950 ohm @ 28 V decreasing linearly to 0 ohm @ 9 V

Circuit protection

Reverse polarity protection of supply leads

RFI/EMI protection

Noise immunity from 5000 Hz to 1 GHz

Frequency response

Customer specified and factory installed
filter for frequency response of
min. 10 Hz to max. of 2500 Hz

Zero and span adjustment

Field adjustable by removing connector

Electrical termination (std)

Standard electrical termination:
MS series compatible, 4 pin, connector
designed in stainless steel specifically
for the oil and gas industry; offers full
hermetic sealing (see pages 3 and 4
for additional electrical terminations)

Shunt calibration

Optional one-wire (with IS approval) or
two-wire (without IS approval)

 

Mechanical Specifications

Media

Corrosive and abrasive service, Inconel® X-750

Overload, safe

150 % rated full scale pressure or limit of Weco® 1502 fitting

Overload, burst

250 % rated pressure or limit of Weco® 1502 fitting

Pressure port

Weco® 1502 wing union, 51 mm [2 in] pipe, male sub end

Wetted parts material

Inconel® X-750

Weight

2722 g [6 lb]

Housing material

316L stainless steel (labels are welded stainless steel with embossed characters)

 

Internal Amplifiers 

Intrinsically safe amp: Option 2n(2N)***

Output signal

4 mA to 20 mA

Input power (voltage)

9 Vdc to 28 Vdc

Input power (current)

4 mA to 24 mA

Frequency response (amp)

2500 Hz

Power supply rejection

60 db

Operating temperature

-43 °C to 85 °C [-45 °F to 185 °F]

Reverse voltage protection

Yes

Short circuit protection

Yes

Wiring code: connector (std)

A No connection
B (+) Output
C (+) Supply
D Case ground 

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FALE CONOSCO
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Vila Rezende - 13405-249

Piracicaba, SP - Brasil
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