The membrane box of the double flange remote diaphragm pressure transmitter is used in the pressure sensor assembly to prevent the medium in the pipeline from directly entering the transmitter. The filling liquid such as silicon oil is used between it and the transmitter.
The SM39PWB-SFLYC double flange remote diaphragm pressure transmitter is used to measure the liquid level, density and 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-SFLYC double flange remote diaphragm pressure transmitter (without migration) is 0-1 kPa ~ 2 MPa, and the rated pressure of remote flange is 1.6/4MPa, 6.4MPa 10MPa, 150 psi, 300 psi or 600 psi respectively.
2 operational principle
The SM39PWB-SFLYC double flange remote diaphragm pressure transmitter is composed of SM39PWB-CY series differential pressure transmitter and welded mounted capillary remote transmission flange. Its working principle is the same as that of CY series differential pressure transmitter (technical specifications of CY series differential pressure transmitter), but the pressure transmission path is slightly different: the pressure acting on the side of the remote flange, first through the diaphragm and filling liquid on the remote flange, then through the capillary, and finally to the corresponding positive and negative side of the measuring sensor.
Measurement parameters: differential pressure and liquid level measurement range
Lower limit: -100% URL (continuously adjustable)
Upper limit: to + 100% URL (continuously adjustable)
range
Table 1 Compartable of relationship between range code and range
Quota code
minimum range
metre fullscale
Rated pressure (max.)
B
1kPa
6kPa
Far pass flange rated pressure
C
4kPa
40kPa
E
25kPa
250kPa
E
200kPa
2MPa
Table 2 Control table of the relationship between distant flange and minimum range
Flange liquid level
nominal diameter
minimum range
Single remote transmission
Bilateral distant transmission
Flat type
DN50/2〞
10kPa
10kPa
DN80/3〞
6kPa
1kPa
DN4〞
6kPa
1kPa
plug-in
DN50/2〞
16kPa
16kPa
DN80/3〞
6kPa
1kPa
DN4〞
6kPa
1kPa
The minimum range of the remote transmitter shall be the larger value of the minimum range in Tables 1 and 2. The adjusted range shall not be less than the minimum range. The maximum range of the remote transmitter shall be the minimum value of the maximum range and the rated pressure of the liquid level flange.
Output output signal
Second-line system, 4 mA ~ 20 mADC HART output, digital communication, HART protocol loaded on 4 mA ~ 20 mADC signal. Output signal limit: I mi n = 3.9 mA and Imax = 2 0 .5 mA
2 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.
3 general conditions
Installation conditions
The transmitter body can be directly fixed in any position. The best state is to make the process flange axis in the vertical state, 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 remote transmission flange is connected to the supporting flange conforming to ANSI / DIN standard, which shall be equipped with soft gasket and fixed bolts and nuts (optional mounting bolts and nuts). For bilateral flanges, capillary parts and remote flanges shall only be installed in the same ambient temperature. The minimum bending radius of the capillary is 75mm, and winding is strictly prohibited!
3.2 ambient condition
ambient temperature
Minimum: depending on the filling fluid
The highest: 85℃
-20℃ ~65℃ with liquid crystal display and fluorine rubber sealing ring
Minimum: Depending on the filling fluid, maximum: 85℃
relative humidity: 0%～100%
shock resistance Acceleration: 50g
Duration: 11ms
Anti-vibration From 2g to 500Hz
Electromagnetic compatibility (EMC)
See Table 4 on the next page
3.3 Limit-temperature limit of the process medium
Temperature of the medium: -30℃ ~400℃
Table 3 Fill fluid, working temperature and minimum working static pressure relationship table
Filler
silicone oil（S）
High temperature silicone oil（H）
Ultra-high temperature silicone oil（U）
plant oil（V）
Density (25℃)
960kg/m³
980kg/m³
1020kg/m³
937kg/m³
operating temperature range
-30℃～200℃
-10℃～350℃
-10℃～400℃
0℃～250℃
temperature
Working 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 static pressure relationship range, the requirements can be met by special design. Transmitter body pressure limit
From 3.5kPa absolute pressure to rated pressure, the protection pressure can be 1.5 times the rated pressure and added to both sides of the transmitter. Far pass flange rated pressure
ANSI standard: 150 psi to 600 psi
DIN Standard: PN1.6MPa~PN 10MPa
One-way overload limit
The low pressure side is the rated pressure of the transmitter body, and the high pressure side is the rated pressure of the remote transmission flange, which may be a modifiable zero drift.
peso
The single remote transmission is 50 / 2 ″ DN about 7~10kg, DN 80 / 3 ″ about 8~11kg, and DN 4 ″ about 9~12kg;
The bilateral remote transmission is DN 50 / 2 ″ about 10~16.5kg, DN 80 / 3 ″ about 12~18kg, and DN 4 ″ about 14~21kg.
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
M20 X 1. 5 Cable seal buckle, wiring terminal is suitable for 0.5 m m 2~ 2.5 m m 2 wire.procedure linkage
1 / 4 NPT internal thread on the low pressure side of the transmitter.
The level flange on the high pressure side of the transmitter meets ANSI or DIN standards. Can be installed directly, according to the overall size. Housing protection level: IP67
Table 4 Table table for electromagnetic compatibility
order number
test item
basic criterion
test condition
Performance level
1
Radiation interference (enclosure)
GB / T 9254-2008 Table 5
30MHz～1000MHz
qualified
2
conducted interference(DC power supply port)
GB / T 9254-2008 Table 1
0.15MHz～30MHz
qualified
3
Electrostatic discharge (ESD) immunity
GB/T 17626.2-2006
4kV (contact point)8kV (air)
B
4
RF electromagnetic field immunity
GB/T 17626.3-2006
10V/m (80MHz～1GHz)
UM
5
Power-frequency magnetic field immunity
GB/T
17626.8-2006
30A/m
UM
6
Electric fast transient pulse populationnoise immunity
GB/T
17626.4-2008
2kV(5/50ns,5kHz)
B
7
Wave surge resistance
GB/T
17626.5-2008
1kV (between the lines)2kV (between lines and ground)（1.2us/50us)
B
8
Conduction of the RF field inductionInterference with perturbation
GB/T
17626.6-2008
3V(150kHz～80MHz)
UM
Note 1: A Performance grade description: normal within the limit of technical specification.
Note 2: B Performance rating description: During the test, the function or performance is temporarily reduced or lost, but it can be restored by itself, and the actual health, storage and data do not change.
4 outline dimension
unit (mm)
1 Figure of basic bilateral differential pressure far transmission seal device
Figure 2 Figure of basic unilateral differential pressure far transmission seal device
Note 1: The unilateral basic differential pressure far transmission seal device can be installed on the high pressure side of the transmitter body or on the low pressure side of the transmitter;
Note 2: The installation mode of the transmitter body for the unilateral or bilateral basic differential pressure remote transmission sealing device is the same as the SM39PWB-CY series differential pressure transmitter.
Table 5 Table of remote transmission flange structure dimensions
nominal diameter
rated pressure
ΦD
ΦK
Φ d1, insert set
Φ d2, Flat Eq
Φd3
para
b
Requires the bolt
countmeasure
screw thread
DN50
PN 1.6/4MPa
165
125
48.3
57
102
3+0.5
20
4
M16
(Seal face type DIN2526E)
PN 6.4MPa
180
135
48.3
57
102
3+0.5
26
4
M20
(Flange DIN2501)
PN 10MPa
195
145
48.3
57
102
3+0.5
28
4
M20
DN80
PN 1.6/4MPa
200
160
76
75
138
3+0.5
24
8
M16
(Seal face type DIN2526E)
PN 6.4MPa
215
170
76
75
138
3+0.5
28
8
M20
(Flange DIN2501)
PN 10MPa
230
180
76
75
138
3+0.5
32
8
M24
DN 2″(ANSI B 16.5 RF)
150psi 300psi 600psi
152.4165.1165.1
120.6127.0127.0
48.348.348.3
575757
92.192.192.1
3+0.53+0.56.35
17.420.631.75
488
M18 M18 M18
DN 3″(ANSI B 16.5 RF)
150psi 300psi 600psi
190.5209.5209.5
152.4168.3168.3
767676
757575
127127127
3+0.53+0.56.35
22.227.038.05
488
M16 M20 M20
DN 4″
150psi
229
191
89
89
157
3+0.5
30
8
M18
(ANSI B 16.5 RF)
300psi
255
200
89
89
157
3+0.5
32
8
M18
Note: Users can choose the mounting bolts and nuts.
Figure. 3 Diagram of bilateral thread mounting differential pressure remote transmission seal device
Figure 4 Unilateral thread-mounted differential pressure remote transmission seal device
Note: The single thread-mounted differential pressure seal device can be installed on the high pressure side of the transmitter body or the low pressure side of the transmitter; the transmitter body of the single-sided thread-mounted differential pressure seal device is the SM39PWB-CY series differential pressure transmitter.
Conexão elétrica
Figure 5. Electrical connection diagram
Note: The shortcut interface function is equivalent to the signal terminal.
Description of process connection of single remote / remote flange end
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