بيتمنتجاتجهاز إرسال درجة الحرارة والضغطDifferential pressure transmitterSingle flange remote transmission diaphragm pressure transmitter
  • SM39PWB-DFLYC single flange remote transmission diaphragm pressure transmitter
  • SM39PWB-DFLYC single flange remote transmission diaphragm pressure transmitter

Single flange remote transmission diaphragm pressure transmitter

وصف المنتج

1 Apply

The membrane box of the remote transmission transmitter is a pressure sensor assembly used to prevent the medium in the pipeline from directly entering the transmitter, and the filling liquid such as silicone oil is used to transfer the pressure between the transmitter and the transmitter.

The SM39PWB-DFLYC series surface pressure / absolute pressure far transmission transmitter is used to measure the liquid level, density, pressure of liquid, gas or steam, and then convert it into 4 mA to 20 mADC HART current signal output.

It can also communicate with HART handheld terminals for parameter setting, process monitoring, etc.

The measurement range of SM39PWB-DFLYC series (without migration) is 0-6 kPa ~ 25 MPa, and the rated pressure of remote flange is 1. 6 / 4M P a, 6. 4 MPa 10MPa, 150 psi, 300 psi or 600 psi, respectively.

2 Working principle and structure

SM39PWB-DFLYC series gauge pressure / voltage remote transmission transmitter structure consists of SM39PWB-DFLYC series gauge pressure / voltage transmitter and welded mounted capillary remote transmission flange. The working principle is the same as that of the SM39PWB-DFLYC series pressure / pressure transmitter, but the pressure transfer path is slightly different: the pressure acting on the side of the remote flange, first through the diaphragm and filling fluid on the remote flange, then through the capillary, and finally to the measuring end of the measuring sensor.

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Single flange remote transmission diaphragm pressure transmitter input

Measurement parameters: surface pressure, absolute pressure, liquid level measurement range

Mege pressure remote transmitter:

Lower limit: -100% URL (continuously adjustable)

Upper limit: to + 100% URL (continuously adjustable)

Pressure remote transmitter:

Lower limit: from 0% ~ 100% URL (continuously adjustable)

Upper limit: to + 100% URL (continuously adjustable)

Table 1 Compartable of relationship between range code and range

Quota codeminimum rangemetre fullscaleRated pressure (max.)
C6kPa40kPa    Rated pressure of a single flange
د25kPa250kPa
F30kPa3MPa
G1MPa10MPa
ح2.1MPa21MPa
I4MPa40MPa
L6kPa absolute pressure40kPa absolute pressure
م25kPa absolute pressure250kPa absolute pressure
OAt 30kPa of absolute pressure3MPa absolute pressure

Table 2 Control table of the relationship between distant flange and minimum range

 flange nominal diameter Minimum / maximum range Longest capillary length
  Flat typeDN25/1〞160kPa/25MPa10m
DN50/2〞10kPa/10MPa12m
DN80/3〞6kPa/10MPa16m
DN4〞6kPa/3MPa16m
 plug-inDN50/2〞16kPa/10MPa10m
DN80/3〞6kPa/10MPa16m
DN4〞6kPa/25MPa16m
Threaded installationTerrestrial transmissionexternal diameter109mm 160kPa/25MPa 10m

Note: The minimum range of the surface pressure / remote transmitter shall be the larger value of the minimum range in Table 1 and Table 2. The adjusted range shall not be less than the minimum range. The maximum range of the gauge / pressure remote transmitter shall be the minimum value of the maximum range and the rated pressure of the remote flange.

Single flange remote transmission diaphragm pressure transmitter الناتج

output signal

Second-line system, 4 mA ~ 20 mADC HART output, digital communication, HART protocol loaded on the 4 mA ~ 20 m ADC signal. Output signal limit: I mi n = 3.9 mA and Imax = 2 0 .5 mA

Single flange remote transmission diaphragm pressure transmitter response time

The damping constant of the amplifier component is 0.1s; the time constant of the sensor and remote flange is 0.2s~6s, depending on the range of the sensor, the length of the capillary, and the viscosity of the filling fluid. The additional adjustable time constant is: 0.1s~60s.

Single flange remote transmission diaphragm pressure transmitter general conditions

  • Installation conditions

The surface pressure / absolute pressure remote transmission transmitter without capillary can be installed directly through the remote transmission flange, and the position deviation will produce a correctable zero offset. The electronic watch case can rotate up to 360°, and the positioning screws can hold it in any position.

The pressure / remote flange is connected to supporting flanges conforming to ANSI / DIN standard, which shall be provided with soft gasers and mounting bolts and nuts (optional mounting bolts and nuts).

For the surface pressure / absolute pressure remote transmitter with capillary, if the remote seal device is lower than the transmitter body, the maximum height drop between the remote seal device and the transmitter body should be <5m.

When the working pressure is below 100kPa absolute pressure, the transmitter body must be below the remote transmission seal. The minimum bending radius of the capillary is 75mm, and winding is strictly prohibited!

Single flange remote transmission diaphragm pressure transmitter ambient condition

ambient temperature

Minimum: Depending on the filling fluid, maximum: 85℃

-20℃ ~65℃ with liquid crystal display and fluorine rubber sealing ring

Minimum: Depending on the filling fluid, maximum: 85℃

Relative humidity: 0%~100% impact resistance

Acceleration: 50g

Duration: 11ms for vibration resistance

2g to 500Hz electromagnetic compatibility (EMC)

See Table 4 on the next page

  • Process medium limit temperature Limit medium temperature: -30℃ ~400℃

 

 

Table 3 Table of filling fluid, working temperature and minimum working pressure

 Fillersilicone oil(S)High temperature silicone oil(H)Ultra-high temperature silicone oil(U)plant oil(V)
Density (25℃)960kg/m³980kg/m³1020kg/m³937kg/m³
operating temperature range-30℃~200℃-10℃~350℃-10℃~400℃0℃~250℃
 
temperatureWorking static pressure range (kPa pressure)
20℃>10>10>10>25
100℃>25>25>25>50
150℃>50>50>50>75
200℃>75>75>75>100
250℃ >100>100>100
350℃ >100>100 
400℃  >100 

Note: Beyond the above working temperature and pressure relationship range, the requirements can be met by special design. Transmitter body pressure limit: Vacuum to maximum pressure remote flange rated pressure:

ANSI standard: 150 psi ~ 600 psi DIN Standard: PN1.6MPa~PN 10MPa

weight:

DN 50 / 2 ″ about 7kg~10kg, DN 80 / 3 ″ about 8kg~11kg, and DN 4 ″ about 9kg~12kg.

Explosion proof performance:

NEPSI Isolation permit: Ex dⅡC T6 NEPSI License: Ex iaⅡC T4 allowed temperature: -40℃ ~65℃

  • Power supply and load condition power supply voltage is 24V

R (Us-12 V) / I ma x kΩ of which I ma x = 2 3  mA

Maximum power supply voltage: 42VDC

Minimum power supply voltage: 12VDC, 15VDC (backlit liquid crystal display) digital communication load range: 250 Ω ~600 Ω

material quality:

Measurement membrane box: stainless steel 316L

Membrane:, stainless steel 316L, Hab C, tantalum process flange: stainless steel 304

Filler liquid: silicone oil, high temperature silicone oil, ultra-high temperature silicone oil, vegetable oil transmitter shell: aluminum alloy material, exterior spraying epoxy resin

Housing sealing ring: nitrile rubber (NBR)

Nameplate:, Stainless steel 304 Electrical connection:

M201.5 cable sealing buckle, the wiring terminal is suitable for 0.5 m m 2~ 2. 5 m m 2 wire.procedure linkage:

Remote pass flanges meet ANSI standards or DIN standards. Can be installed directly, refer to the dimension table. Level of enclosure protection:

IP67

Table 4 Table table for electromagnetic compatibility

order numbertest itembasic criteriontest conditionPerformance level
1Radiation interference (enclosure)GB / T 9254-2008 Table 530MHz~1000MHzqualified
 2conducted interference(DC power supply port) GB / T 9254-2008 Table 1 0.15MHz~30MHz qualified
 3Electrostatic discharge (ESD) immunity GB/T 17626.2-20064kV (contact point)8kV (air) B
 4 RF electromagnetic field immunity GB/T 17626.3-200610V/m (80MHz~1GHz) A
5Power-frequency magnetic field immunityGB/T 17626.8-200630A/mA
 6Electric fast transient pulse populationnoise immunity GB/T 17626.4-2008 2kV(5/50ns,5kHz) B
 7 Wave surge resistance GB/T 17626.5-20081kV (between the lines)2kV (between lines and ground)(1.2us/50us) B
 8Conduction of the RF field inductionInterference with perturbation GB/T 17626.6-2008 3V(150kHz~80MHz) A

(2) B performance level description: during the test, the function or performance is temporarily reduced or lost, but it can be restored by itself, and the actual operation status, storage and data do not change.

Outline dimension

nominal diameter       ت bRequires the bolt
quantityscrew thread
DN50      3+0.5204M16
(Seal surface DIN2526E3+0.5264M20
(Flange, DIN2501)3+0.5284M20
DN80      3+0.5248M16
(Seal surface DIN2526E3+0.5288M20
(Flange, DIN2501)3+0.5328M24
 DN 2″(ANSI B 16.5 RF type      3+0.53+0.56.3517.420.631.75 488 M18 M18 M18
       3+0.522.2 488 M16 M20 M20
DN 3″3+0.527.0
(ANSI B 16.5 RF type6.3538.0
  5
DN 4″      3+0.5308M18
(ANSI B 16.5 RF type3+0.5328M18

Table 6 Structural dimensions of remote transmission seal device with internal diaphragm conforming to DIN 2501 standard

 DN PNsize,mmweight(kg)
دKd4bfحd2G2
251MPa/4MPa1158568222-14-1.5
 256.3MPa/10MPa1401006824252-4×M163.2
16MPa1401006824252-4×M163.6
25MPa1501056828296-4×M204

Table 7 Structural dimensions of remote transmission seal device with internal diaphragm conforming to ANSI B 16.5 standard

 DN psisize,mmweight(kg)
دKd2d4bfحG 2 UNC
 1″15011079.51651222--1.4
300125892051222--1.7
 1″60012589-51257534×5/8″3.6
1500150101.5-51367644×7/8″4
  1. Electrical connection

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