WeiHai DuoTeRui Automation Equipment Co., Ltd. was established on July 15, 2016. It mainly engages in the R&D, production and sales of flow meters, and is a technology-based enterprise integrating science, ind...
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The 3051S LD Differential Pressure Remote Transmitter is structurally composed of an FD3051S series differential pressure transmitter and a remote flange with capillary tubes installed via welding. The pressure acting on the remote flange side first passes through the diaphragm and filling fluid on the remote flange, then through the capillary tubes, and finally reaches the corresponding positive and negative sides of the measuring sensor.
The 3051S LD Differential Pressure Remote Transmitter is used to measure the level, density, pressure, and flow rate of liquids, gases, or vapors, and then converts these measurements into a 4~20mA DC HART current signal for output. The FD3051S LD can also communicate with the FDT375 handheld terminal and FDM100 Modem, through which operations such as parameter setting and process monitoring can be performed.
The 3051S LD Differential Pressure Remote Transmitter is structurally composed of an FD3051S series differential pressure transmitter and a remote flange with capillary tubes installed via welding. The pressure acting on the remote flange side first passes through the diaphragm and filling fluid on the remote flange, then through the capillary tubes, and finally reaches the corresponding positive and negative sides of the measuring sensor.
The 3051S LD Differential Pressure Remote Transmitter is used to measure the level, density, pressure, and flow rate of liquids, gases, or vapors, and then converts these measurements into a 4~20mA DC HART current signal for output. The FD3051S LD can also communicate with the FDT375 handheld terminal and FDM100 Modem, through which operations such as parameter setting and process monitoring can be performed.
Technical Specifications Table | |||||
Range and Range | Comparison Table 1 of Range Relationship | ||||
Range code | Minimum range | Maximum range | Rated pressure (maximum value) | ||
B | 1kPa | 6kPa | Rated pressure of remote transmission flange | ||
C | 4kPa | 40kPa | |||
D | 25kPa | 250kPa | |||
F | 200kPa | 3MPa | |||
Measurement range | |||||
Lower limit value: Starting from -100% URL (continuously adjustable) | |||||
Upper limit value: Starting from+100% URL (continuously adjustable) | |||||
Functional specifications | Output signal | ||||
Two wire system, 4-20mA DC output, digital communication, programmable linear or flat settings | |||||
Root output method. The HART protocol is loaded on a 4-20mA DC signal. | |||||
Output signal limit: Imin=3.9mA, Imax=20.5mA | |||||
Alarm current (mode can be set) | |||||
Low alarm mode (minimum): 3.6 mA | |||||
High alarm mode (maximum): 21 mA | |||||
Non reporting mode (hold): Maintain the effective current value before the fault | |||||
Alarm current standard setting: high alarm mode | |||||
Response time | |||||
The damping constant of the amplifier component is 0.1s; the time constant of the sensor and liquid level flange is | |||||
0.2~2s， Depends on the range and range ratio. | |||||
The additional adjustable time constant is 0 1~60s | |||||
Working conditions | Installation requirements | ||||
The transmitter body can be directly fixed in any position. The optimal state is to make the process flange | |||||
The axis is in a vertical state, and positional deviation will result in a correctable zero offset. electron | |||||
The case can rotate up to 360 °, and the positioning screw can fix it in any position | |||||
The remote transmission flange is connected to a matching flange that complies with ANSI/DIN standards | |||||
Lan should be equipped with soft gaskets and bolts and nuts for installation and fixation (users can choose to install them) | |||||
Install bolts and nuts. For bilateral flange remote transmitters, capillary components and | |||||
Remote transmission flanges should only be installed in the same ambient temperature. The minimum of capillary tube | |||||
The bending radius is 75mm, and winding is strictly prohibited! | |||||
Technical Specifications Table | ||
Working conditions | Ambient temperature | |
Minimum: depends on the filling liquid Maximum: 85 ℃ | ||
-20 ℃~65 ℃ (LCD display, sealed with fluororubber ring) | ||
-40 ℃~70 ℃ (OLED display) | ||
Storage temperature/transportation temperature | ||
Minimum: depends on the filling liquid Maximum: 85 ℃ | ||
Relative humidity | ||
0 ~ 100% | ||
Impact-resistant | ||
Acceleration: 50g | ||
Duration: 11ms | ||
Shockproof | ||
2g to 500Hz | ||
Electromagnetic Compatibility (EMC) | ||
Refer to the table "Electromagnetic Compatibility Appendix" on the next page | ||
Temperature limit of medium | ||
-30 ~ 400℃ | ||
Working temperature and pressure of filling fluid | ||
Refer to the table "Relationship between Filling Fluid, Working Temperature, and Minimum Working Static Pressure" | ||
Pressure limit of transmitter body | ||
From an absolute pressure of 3.5kPa to the rated pressure, the protective pressure can be greater than the rated pressure | ||
1.5 times, simultaneously applied to both sides of the transmitter. | ||
Rated pressure of remote transmission flange | ||
ANSI standard: 150psi~600psi | ||
DIN Standard: PN 1.6MPa ~ PN 10MPa | ||
Unidirectional 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 liquid level flange, | ||
Possible correctable zero drift may occur. | ||
Explosion proof performance | ||
NEPSI Flameproof Certification: Ex dIICT6 | ||
NEPSI Intrinsically Safe Certification: Ex iaIICT4 | ||
Permissible operating temperature: -40℃ ~ 65℃ | ||
Electromagnetic Compatibility Appendix
serial number | Test Project | Basic standards | Test Vonditions | Performance level |
1 | Radiation interference (shell) | GB/T 9254-2008 Table 5 | 30MHz ~ 1000MHz | Qualified |
2 | Conducted interference (DC power port) | GB/T 9254-2008 Table 1 | 0. 15MHz ~ 30MHz | Qualified |
3 | Electrostatic discharge (ESD) immunity | GB/T 17626.2-2006 | 4kV (contact) 8kV (air) | B |
4 | Radio frequency electromagnetic field immunity | GB/T 17626.3-2006 | 10V/m (80MHz ~ 1GHz) | A |
5 | Power frequency magnetic field immunity | GB/T 17626.8-2006 | 30A/m | A |
6 | Electrical fast transient burst immunity | GB/T 17626.4-2008 | 2kV(5/50ns,5kHz) | B |
7 | Surge immunity | GB/T 17626.5-2008 | 1kV (between lines) 2kV (between lines and ground) (1.2us/50us) | B |
8 | Immunity to Conducted Interference Induced by Radio Frequency Field | GB/T 17626.6-2008 | 3V (150KHz ~ 80MHz) | A |
Note: (1) A Performance Level Description: During testing, the performance is normal within the technical specification limits.
(2) B Performance Level Description: During testing, the functionality or performance may temporarily decrease or be lost, but it can recover on its own without changing the actual operating conditions, storage, and data.
Differential pressure remote transmission transmitter body selection table
Model | Specification code | Instructions | ||||||
Low voltage side process connection accessories | N | .............................. | No process connection accessories (double flange)/clamp with 1/4 inch NPT internal thread (single flange) | |||||
C1 | .............................. | 1/2 inch NPT internal thread stainless steel oval flange | ||||||
C2 | .............................. | M20x1.5 external thread stainless steel T-shaped joint with M20X1.5 to φ 14 welded pipe | ||||||
C3 | .............................. | NPT1/4-M20 × 1.5 adapter, equipped with a φ 14 welded pipe | ||||||
C4 | .............................. | NPT1/2-M20 × 1.5 adapter, with a welded pipe of diameter 14 | ||||||
Electrical Connection | M | .......................... | Standard product ISO M20 × 1.5 internal thread | |||||
A | .......................... | ANSI NPT1/2 (F) internal thread | ||||||
LCD (Liquid Crystal Display) | L | ...................... | LCD display (-20 ℃) | |||||
S | ...................... | Low temperature LCD display (-30 ℃) | ||||||
E | ...................... | OLED display (-40 ℃) | ||||||
Explosion proof options | N | ................... | Basic type | |||||
i | ................... | Intrinsic Safety NEPSI | ||||||
d | ................... | Explosion proof NEPSI | ||||||
Tag plate | N | ............... | None | |||||
1 | ............... | The tag number is inside the nameplate | ||||||
2 | ............... | Hanging stainless steel sign | ||||||
Instruction Manual | C | ............ | Chinese | |||||
E | ............ | English | ||||||
Comparison Table of Capillary Length for Remote Transmission Device Range
Remote transmission flange form |
nominal diameter | minimum range | Maximum length of capillary tube at minimum range |
Maximum capillary length | |||||
Material of differential pressure remote transmission isolation membrane | Gauge pressure/absolute pressure remote transmission isolation membrane material | ||||||||
316L | Hastelloy C | Tantalum / Coating | 316L | Hastelloy C | Tantalum / Coating | ||||
FFW flat flange PFW flat flange | DN25/DN1" 仅 FFW | 15kPa | 20kPa | 20kPa | 30kPa | 3m | 6m | ||
DN50/DN2" | 8kPa | 12kPa | 20kPa | 12kPa | 15kPa | 20kPa | 3m | 8m | |
DN80DN/3" | 4kPa | 6kPa | 12kPa | 8kPa | 10kPa | 15kPa | 3m | 11m | |
DN100/DN4" | 4kPa | 5kPa | 10kPa | 6kPa | 8kPa | 12kPa | 3m | 11m | |
EFW plug-in cylinder flange | DN50/DN2" | 8kPa | 12kPa | 20kPa | 15kPa | 20kPa | 20kPa | 3m | 8m |
DN80DN/3" | 4kPa | 6kPa | 12kPa | 10kPa | 12kPa | 15kPa | 3m | 11m | |
DN100/DN4" | 4kPa | 5kPa | 10kPa | 8kPa | 10kPa | 12kPa | 3m | 11m | |
RTW threaded installation flange | DN50/DN2" | 5kPa | 7kPa | 10kPa | 12kPa | 3m | 8m | ||
Note: The minimum range of the remote transmitter should be the larger of the minimum range in this table and the sensor range
FFW Flat/EFW Insertion Tube Remote Transmission Device Selection Table
Model | Specification code | Instructions | ||||||||||
FFW- | ................................................ | Flat remote transmission device | ||||||||||
EFW- | ................................................ | Insert cylinder type remote transmission device | ||||||||||
Location of remote transmission device | H | ............................................ | Positive pressure side remote transmission device | |||||||||
L | ............................................ | Low voltage side remote transmission device | ||||||||||
Flange size and specifications | ........................................ | Nominal diameter sealing surface form | ||||||||||
A | ........................................ | DN50 DIN 2501 E-type DN2526 | ||||||||||
B | ........................................ | DN80 DIN 2501 E-type DN2526 | ||||||||||
D | ........................................ | DN2 "ANSI B 16.5 RF type ANSI B 16.5 | ||||||||||
E | ........................................ | DN3 "ANSI B 16.5 RF type ANSI B 16.5 | ||||||||||
F | ........................................ | DN4 "ANSI B 16.5 RF type ANSI B 16.5 | ||||||||||
rated pressure | ..................................... | pressure rating Flange pressure standard | ||||||||||
1 | ..................................... | PN 1MPa/4MPa DIN 2501 | ||||||||||
2 | ..................................... | PN 6.4MPa DIN 2501 | ||||||||||
3 | ..................................... | PN 10MPa DIN 2501 | ||||||||||
6 | ..................................... | 150psi | ANSI B 16.5 | |||||||||
7 | ..................................... | 300psi | ANSI B 16.5 | |||||||||
8 | ..................................... | 600psi ANSI B 16.5( 不包括 DN4″ ANSI B 16.5) | ||||||||||
Diaphragm material | L | ................................ | Stainless steel 316L | |||||||||
H | ................................ | Hastelloy C | ||||||||||
T | ................................ | Tantalum (flat only) | ||||||||||
M | ................................ | Monel (flat only) | ||||||||||
Insertion tube length | 0 | ............................ | None (flat) | |||||||||
1 | ............................ | Insertion length 50mm (insertion tube type) | ||||||||||
2 | ............................ | Insertion length 100mm (insertion tube type) | ||||||||||
3 | ............................ | Insertion length 150mm (insertion tube type) | ||||||||||
T | ............................ | Special length (insert cylinder type) | ||||||||||
Fill Fluid | S | ........................ | Silicone oil -30~200 ℃ | |||||||||
H | ........................ | High temperature silicone oil -10~350 ℃ | ||||||||||
U | ........................ | Ultra high temperature silicone oil -10~400 ℃ | ||||||||||
V | ........................ | Vegetable oil 0~250 ℃ | ||||||||||
Capillary protective cover | N | .................... | none | |||||||||
P | .................... | Capillary tube with PVC protective layer | ||||||||||
capillary length | S() | ................ | Capillary length, unit meter, standard length is 1, 2, 3, 4, 5, 6 | |||||||||
Surface form of liquid receiving flange membrane box | N | ........... | none | |||||||||
1 | ........... | Coat 316L with FEP (fluorinated ethylene propylene copolymer) (temperature ≤ 180 ℃) | ||||||||||
2 | ........... | PFA (perfluoroalkyl compound) coated on 316L (temperature ≤ 260 ℃) | ||||||||||
3 | ........... | Membrane with PTFE film (PTFE film, only flat type) (temperature ≤ 200 ℃) | ||||||||||
model | Specification code | Instructions | ||||||
RTW- | ..................................................... | Threaded installation remote transmission device | ||||||
Location of remote transmission device | H | ..................................................... | Positive pressure side remote transmission device | |||||
L | .................................................... | Low voltage side remote transmission device | ||||||
Membrane/sealing surface material | L | ................................................. | Stainless steel 316L | |||||
C | ................................................. | Hastelloy C | ||||||
Rinse spare hole | 1 | ............................................. | none | |||||
0 | ............................................. | have | ||||||
Fill Fluid | S | ......................................... | Silicone oil -30~200 ℃ | |||||
H | ......................................... | High temperature silicone oil -10~350 ℃ | ||||||
U | ......................................... | Ultra high temperature silicone oil -10~400 ℃ | ||||||
V | ......................................... | Vegetable oil 0~250 ℃ | ||||||
capillary length | S() | ..................................... | Capillary length, unit meter, standard length is 1, 2, 3, 4, 5, 6 | |||||
Characteristics of capillary components | N | ............................... | none | |||||
P | ............................... | Capillary tube with PVC protective layer | ||||||
Example of selection:
Example: 3051SLD2-BC2A1NNN2NMLN1C, FFW-HA1L0SPS(4)N, FFW-LA1L0SPS(4)N
[3051SLD2]: Dual-Flange Remote Differential Pressure Transmitter
[B]: Basic error of ±0.075%
[C]: Measuring range: 0-400Pa ~ 40kPa (0-40 ~ 4000 mmH₂O)
[2]: Static pressure compensation: 10MPa
[A]: Wetted parts: 316L stainless steel diaphragm, filled with silicone oil
[1]: Rated operating pressure: 16MPa
[N]: No relief valve
[N]: Wetted sealing ring: Nitrile Butadiene Rubber (NBR)
[N]: No special options
[2]: Galvanized carbon steel mounting bracket
[N]: No process connection accessories on the low-pressure side
[M]: Electrical interface: M20*1.5 female thread
[L]: LCD display
[N]: Basic type (non-explosion-proof)
[1]: Tag number marked on the nameplate
[C]: User manual in Chinese
[FFW-]: Flat-Type Remote Transmission Device
[H]: Wetted sealing device on the positive pressure side
[A]: Flange specification: DN50 DIN 2501 Type E DN2526
[L]: Diaphragm material: 316L stainless steel
[1]: Flange pressure class: PN 1MPa/4MPa (DIN 2501)
[0]: Wetted surface: flat diaphragm capsule
[S]: Filling fluid: silicone oil
[P]: Capillary tube with PVC protective layer
[S(4)]: Capillary tube length: 4m
[N]: No special treatment on the diaphragm capsule surface of the wetted flange
[FFW-]: Flat-Type Remote Transmission Device
[L]: Wetted sealing device on the low-pressure side
[A]: Flange specification: DN50 DIN 2501 Type E DN2526
[L]: Diaphragm material: 316L stainless steel
[1]: Flange pressure class: PN 1MPa/4MPa (DIN 2501)
[0]: Wetted surface: flat diaphragm capsule
[S]: Filling fluid: silicone oil
[P]: Capillary tube with PVC protective layer
[S(4)]: Capillary tube length: 4m
[N]: No special treatment on the diaphragm capsule surface of the wetted flange
Notes
When selecting the remote flange sealing device, the selection of the main body of the 3051SLD differential pressure transmitter shall be completed first.
Diaphragms with PTFE coating (also known as F4 diaphragms) are suitable for negative pressure measurement where the absolute pressure exceeds 50kPa.
The minimum range of the remote transmitter shall be the larger value between the minimum ranges specified in Table 1 and Table 2. The adjusted range shall not be less than the minimum range. To optimize the performance of the remote transmitter, the range ratio shall be selected to be <10:1.
When the measured pressure or operating static pressure is <50kPa (absolute pressure), special remarks shall be made, and special treatment is required during the manufacturing process to ensure performance.
If a certain code refers to a non-standard item with special requirements, it can be replaced by the code "X" or "Y", and the corresponding description of X or Y shall be provided.
Technical Specifications Table | |||||
Range and Range | Comparison Table 1 of Range Relationship | ||||
Range code | Minimum range | Maximum range | Rated pressure (maximum value) | ||
B | 1kPa | 6kPa | Rated pressure of remote transmission flange | ||
C | 4kPa | 40kPa | |||
D | 25kPa | 250kPa | |||
F | 200kPa | 3MPa | |||
Measurement range | |||||
Lower limit value: Starting from -100% URL (continuously adjustable) | |||||
Upper limit value: Starting from+100% URL (continuously adjustable) | |||||
Functional specifications | Output signal | ||||
Two wire system, 4-20mA DC output, digital communication, programmable linear or flat settings | |||||
Root output method. The HART protocol is loaded on a 4-20mA DC signal. | |||||
Output signal limit: Imin=3.9mA, Imax=20.5mA | |||||
Alarm current (mode can be set) | |||||
Low alarm mode (minimum): 3.6 mA | |||||
High alarm mode (maximum): 21 mA | |||||
Non reporting mode (hold): Maintain the effective current value before the fault | |||||
Alarm current standard setting: high alarm mode | |||||
Response time | |||||
The damping constant of the amplifier component is 0.1s; the time constant of the sensor and liquid level flange is | |||||
0.2~2s， Depends on the range and range ratio. | |||||
The additional adjustable time constant is 0 1~60s | |||||
Working conditions | Installation requirements | ||||
The transmitter body can be directly fixed in any position. The optimal state is to make the process flange | |||||
The axis is in a vertical state, and positional deviation will result in a correctable zero offset. electron | |||||
The case can rotate up to 360 °, and the positioning screw can fix it in any position | |||||
The remote transmission flange is connected to a matching flange that complies with ANSI/DIN standards | |||||
Lan should be equipped with soft gaskets and bolts and nuts for installation and fixation (users can choose to install them) | |||||
Install bolts and nuts. For bilateral flange remote transmitters, capillary components and | |||||
Remote transmission flanges should only be installed in the same ambient temperature. The minimum of capillary tube | |||||
The bending radius is 75mm, and winding is strictly prohibited! | |||||
Technical Specifications Table | ||
Working conditions | Ambient temperature | |
Minimum: depends on the filling liquid Maximum: 85 ℃ | ||
-20 ℃~65 ℃ (LCD display, sealed with fluororubber ring) | ||
-40 ℃~70 ℃ (OLED display) | ||
Storage temperature/transportation temperature | ||
Minimum: depends on the filling liquid Maximum: 85 ℃ | ||
Relative humidity | ||
0 ~ 100% | ||
Impact-resistant | ||
Acceleration: 50g | ||
Duration: 11ms | ||
Shockproof | ||
2g to 500Hz | ||
Electromagnetic Compatibility (EMC) | ||
Refer to the table "Electromagnetic Compatibility Appendix" on the next page | ||
Temperature limit of medium | ||
-30 ~ 400℃ | ||
Working temperature and pressure of filling fluid | ||
Refer to the table "Relationship between Filling Fluid, Working Temperature, and Minimum Working Static Pressure" | ||
Pressure limit of transmitter body | ||
From an absolute pressure of 3.5kPa to the rated pressure, the protective pressure can be greater than the rated pressure | ||
1.5 times, simultaneously applied to both sides of the transmitter. | ||
Rated pressure of remote transmission flange | ||
ANSI standard: 150psi~600psi | ||
DIN Standard: PN 1.6MPa ~ PN 10MPa | ||
Unidirectional 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 liquid level flange, | ||
Possible correctable zero drift may occur. | ||
Explosion proof performance | ||
NEPSI Flameproof Certification: Ex dIICT6 | ||
NEPSI Intrinsically Safe Certification: Ex iaIICT4 | ||
Permissible operating temperature: -40℃ ~ 65℃ | ||
Electromagnetic Compatibility Appendix
serial number | Test Project | Basic standards | Test Vonditions | Performance level |
1 | Radiation interference (shell) | GB/T 9254-2008 Table 5 | 30MHz ~ 1000MHz | Qualified |
2 | Conducted interference (DC power port) | GB/T 9254-2008 Table 1 | 0. 15MHz ~ 30MHz | Qualified |
3 | Electrostatic discharge (ESD) immunity | GB/T 17626.2-2006 | 4kV (contact) 8kV (air) | B |
4 | Radio frequency electromagnetic field immunity | GB/T 17626.3-2006 | 10V/m (80MHz ~ 1GHz) | A |
5 | Power frequency magnetic field immunity | GB/T 17626.8-2006 | 30A/m | A |
6 | Electrical fast transient burst immunity | GB/T 17626.4-2008 | 2kV(5/50ns,5kHz) | B |
7 | Surge immunity | GB/T 17626.5-2008 | 1kV (between lines) 2kV (between lines and ground) (1.2us/50us) | B |
8 | Immunity to Conducted Interference Induced by Radio Frequency Field | GB/T 17626.6-2008 | 3V (150KHz ~ 80MHz) | A |
Note: (1) A Performance Level Description: During testing, the performance is normal within the technical specification limits.
(2) B Performance Level Description: During testing, the functionality or performance may temporarily decrease or be lost, but it can recover on its own without changing the actual operating conditions, storage, and data.
Differential pressure remote transmission transmitter body selection table
Model | Specification code | Instructions | ||||||
Low voltage side process connection accessories | N | .............................. | No process connection accessories (double flange)/clamp with 1/4 inch NPT internal thread (single flange) | |||||
C1 | .............................. | 1/2 inch NPT internal thread stainless steel oval flange | ||||||
C2 | .............................. | M20x1.5 external thread stainless steel T-shaped joint with M20X1.5 to φ 14 welded pipe | ||||||
C3 | .............................. | NPT1/4-M20 × 1.5 adapter, equipped with a φ 14 welded pipe | ||||||
C4 | .............................. | NPT1/2-M20 × 1.5 adapter, with a welded pipe of diameter 14 | ||||||
Electrical Connection | M | .......................... | Standard product ISO M20 × 1.5 internal thread | |||||
A | .......................... | ANSI NPT1/2 (F) internal thread | ||||||
LCD (Liquid Crystal Display) | L | ...................... | LCD display (-20 ℃) | |||||
S | ...................... | Low temperature LCD display (-30 ℃) | ||||||
E | ...................... | OLED display (-40 ℃) | ||||||
Explosion proof options | N | ................... | Basic type | |||||
i | ................... | Intrinsic Safety NEPSI | ||||||
d | ................... | Explosion proof NEPSI | ||||||
Tag plate | N | ............... | None | |||||
1 | ............... | The tag number is inside the nameplate | ||||||
2 | ............... | Hanging stainless steel sign | ||||||
Instruction Manual | C | ............ | Chinese | |||||
E | ............ | English | ||||||
Comparison Table of Capillary Length for Remote Transmission Device Range
Remote transmission flange form |
nominal diameter | minimum range | Maximum length of capillary tube at minimum range |
Maximum capillary length | |||||
Material of differential pressure remote transmission isolation membrane | Gauge pressure/absolute pressure remote transmission isolation membrane material | ||||||||
316L | Hastelloy C | Tantalum / Coating | 316L | Hastelloy C | Tantalum / Coating | ||||
FFW flat flange PFW flat flange | DN25/DN1" 仅 FFW | 15kPa | 20kPa | 20kPa | 30kPa | 3m | 6m | ||
DN50/DN2" | 8kPa | 12kPa | 20kPa | 12kPa | 15kPa | 20kPa | 3m | 8m | |
DN80DN/3" | 4kPa | 6kPa | 12kPa | 8kPa | 10kPa | 15kPa | 3m | 11m | |
DN100/DN4" | 4kPa | 5kPa | 10kPa | 6kPa | 8kPa | 12kPa | 3m | 11m | |
EFW plug-in cylinder flange | DN50/DN2" | 8kPa | 12kPa | 20kPa | 15kPa | 20kPa | 20kPa | 3m | 8m |
DN80DN/3" | 4kPa | 6kPa | 12kPa | 10kPa | 12kPa | 15kPa | 3m | 11m | |
DN100/DN4" | 4kPa | 5kPa | 10kPa | 8kPa | 10kPa | 12kPa | 3m | 11m | |
RTW threaded installation flange | DN50/DN2" | 5kPa | 7kPa | 10kPa | 12kPa | 3m | 8m | ||
Note: The minimum range of the remote transmitter should be the larger of the minimum range in this table and the sensor range
FFW Flat/EFW Insertion Tube Remote Transmission Device Selection Table
Model | Specification code | Instructions | ||||||||||
FFW- | ................................................ | Flat remote transmission device | ||||||||||
EFW- | ................................................ | Insert cylinder type remote transmission device | ||||||||||
Location of remote transmission device | H | ............................................ | Positive pressure side remote transmission device | |||||||||
L | ............................................ | Low voltage side remote transmission device | ||||||||||
Flange size and specifications | ........................................ | Nominal diameter sealing surface form | ||||||||||
A | ........................................ | DN50 DIN 2501 E-type DN2526 | ||||||||||
B | ........................................ | DN80 DIN 2501 E-type DN2526 | ||||||||||
D | ........................................ | DN2 "ANSI B 16.5 RF type ANSI B 16.5 | ||||||||||
E | ........................................ | DN3 "ANSI B 16.5 RF type ANSI B 16.5 | ||||||||||
F | ........................................ | DN4 "ANSI B 16.5 RF type ANSI B 16.5 | ||||||||||
rated pressure | ..................................... | pressure rating Flange pressure standard | ||||||||||
1 | ..................................... | PN 1MPa/4MPa DIN 2501 | ||||||||||
2 | ..................................... | PN 6.4MPa DIN 2501 | ||||||||||
3 | ..................................... | PN 10MPa DIN 2501 | ||||||||||
6 | ..................................... | 150psi | ANSI B 16.5 | |||||||||
7 | ..................................... | 300psi | ANSI B 16.5 | |||||||||
8 | ..................................... | 600psi ANSI B 16.5( 不包括 DN4″ ANSI B 16.5) | ||||||||||
Diaphragm material | L | ................................ | Stainless steel 316L | |||||||||
H | ................................ | Hastelloy C | ||||||||||
T | ................................ | Tantalum (flat only) | ||||||||||
M | ................................ | Monel (flat only) | ||||||||||
Insertion tube length | 0 | ............................ | None (flat) | |||||||||
1 | ............................ | Insertion length 50mm (insertion tube type) | ||||||||||
2 | ............................ | Insertion length 100mm (insertion tube type) | ||||||||||
3 | ............................ | Insertion length 150mm (insertion tube type) | ||||||||||
T | ............................ | Special length (insert cylinder type) | ||||||||||
Fill Fluid | S | ........................ | Silicone oil -30~200 ℃ | |||||||||
H | ........................ | High temperature silicone oil -10~350 ℃ | ||||||||||
U | ........................ | Ultra high temperature silicone oil -10~400 ℃ | ||||||||||
V | ........................ | Vegetable oil 0~250 ℃ | ||||||||||
Capillary protective cover | N | .................... | none | |||||||||
P | .................... | Capillary tube with PVC protective layer | ||||||||||
capillary length | S() | ................ | Capillary length, unit meter, standard length is 1, 2, 3, 4, 5, 6 | |||||||||
Surface form of liquid receiving flange membrane box | N | ........... | none | |||||||||
1 | ........... | Coat 316L with FEP (fluorinated ethylene propylene copolymer) (temperature ≤ 180 ℃) | ||||||||||
2 | ........... | PFA (perfluoroalkyl compound) coated on 316L (temperature ≤ 260 ℃) | ||||||||||
3 | ........... | Membrane with PTFE film (PTFE film, only flat type) (temperature ≤ 200 ℃) | ||||||||||
model | Specification code | Instructions | ||||||
RTW- | ..................................................... | Threaded installation remote transmission device | ||||||
Location of remote transmission device | H | ..................................................... | Positive pressure side remote transmission device | |||||
L | .................................................... | Low voltage side remote transmission device | ||||||
Membrane/sealing surface material | L | ................................................. | Stainless steel 316L | |||||
C | ................................................. | Hastelloy C | ||||||
Rinse spare hole | 1 | ............................................. | none | |||||
0 | ............................................. | have | ||||||
Fill Fluid | S | ......................................... | Silicone oil -30~200 ℃ | |||||
H | ......................................... | High temperature silicone oil -10~350 ℃ | ||||||
U | ......................................... | Ultra high temperature silicone oil -10~400 ℃ | ||||||
V | ......................................... | Vegetable oil 0~250 ℃ | ||||||
capillary length | S() | ..................................... | Capillary length, unit meter, standard length is 1, 2, 3, 4, 5, 6 | |||||
Characteristics of capillary components | N | ............................... | none | |||||
P | ............................... | Capillary tube with PVC protective layer | ||||||
Example of selection:
Example: 3051SLD2-BC2A1NNN2NMLN1C, FFW-HA1L0SPS(4)N, FFW-LA1L0SPS(4)N
[3051SLD2]: Dual-Flange Remote Differential Pressure Transmitter
[B]: Basic error of ±0.075%
[C]: Measuring range: 0-400Pa ~ 40kPa (0-40 ~ 4000 mmH₂O)
[2]: Static pressure compensation: 10MPa
[A]: Wetted parts: 316L stainless steel diaphragm, filled with silicone oil
[1]: Rated operating pressure: 16MPa
[N]: No relief valve
[N]: Wetted sealing ring: Nitrile Butadiene Rubber (NBR)
[N]: No special options
[2]: Galvanized carbon steel mounting bracket
[N]: No process connection accessories on the low-pressure side
[M]: Electrical interface: M20*1.5 female thread
[L]: LCD display
[N]: Basic type (non-explosion-proof)
[1]: Tag number marked on the nameplate
[C]: User manual in Chinese
[FFW-]: Flat-Type Remote Transmission Device
[H]: Wetted sealing device on the positive pressure side
[A]: Flange specification: DN50 DIN 2501 Type E DN2526
[L]: Diaphragm material: 316L stainless steel
[1]: Flange pressure class: PN 1MPa/4MPa (DIN 2501)
[0]: Wetted surface: flat diaphragm capsule
[S]: Filling fluid: silicone oil
[P]: Capillary tube with PVC protective layer
[S(4)]: Capillary tube length: 4m
[N]: No special treatment on the diaphragm capsule surface of the wetted flange
[FFW-]: Flat-Type Remote Transmission Device
[L]: Wetted sealing device on the low-pressure side
[A]: Flange specification: DN50 DIN 2501 Type E DN2526
[L]: Diaphragm material: 316L stainless steel
[1]: Flange pressure class: PN 1MPa/4MPa (DIN 2501)
[0]: Wetted surface: flat diaphragm capsule
[S]: Filling fluid: silicone oil
[P]: Capillary tube with PVC protective layer
[S(4)]: Capillary tube length: 4m
[N]: No special treatment on the diaphragm capsule surface of the wetted flange
Notes
When selecting the remote flange sealing device, the selection of the main body of the 3051SLD differential pressure transmitter shall be completed first.
Diaphragms with PTFE coating (also known as F4 diaphragms) are suitable for negative pressure measurement where the absolute pressure exceeds 50kPa.
The minimum range of the remote transmitter shall be the larger value between the minimum ranges specified in Table 1 and Table 2. The adjusted range shall not be less than the minimum range. To optimize the performance of the remote transmitter, the range ratio shall be selected to be <10:1.
When the measured pressure or operating static pressure is <50kPa (absolute pressure), special remarks shall be made, and special treatment is required during the manufacturing process to ensure performance.
If a certain code refers to a non-standard item with special requirements, it can be replaced by the code "X" or "Y", and the corresponding description of X or Y shall be provided.
