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Working principle/working--------------------------------------------------------------------◆◆
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| The medium pressure is transmitted to the measuring diaphragm located at the center of the δ chamber through the isolation diaphragm and silicone oil. The measuring diaphragm is a tensioned elastic element that produces corresponding displacement with the pressure difference on both sides. The displacement of the measuring diaphragm is proportional to the differential pressure, with a maximum displacement of 0.1mm. It is detected by the capacitor plates on both sides, and the differential capacitance between the measuring diaphragm and the capacitor plate is converted into a two-wire (4-20) mA DC output signal using electronic circuits. |
Structural composition/Structural components-----------------------------------------------------◆◆
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|
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| 1 |
Front cover of header |
6 |
Explosion proof joint |
11 |
clamp |
| 2 |
Header (Options) |
7 |
terminal block |
12 |
Sensor sealing ring |
| 3 |
Metal cover |
8 |
Header back cover |
13 |
sensor |
| 4 |
housing |
9 |
Release valve |
14 |
nut |
| 5 |
nameplate label |
10 |
bolt |
15 |
Welded pipe joint component (option) |
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Product Features/Product features-----------------------------------------------------------◆◆
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| 1. High precision |
| 2. Good stability |
| 3. Two line system 4-20mADC |
| 4. Solid components, plug-in printed circuit boards |
| 5. Small, lightweight, sturdy and earthquake resistant |
| 6. Range and zero point are continuously adjustable externally |
| 7. Positive migration can reach 500%; Negative transfer can reach 600% |
| 8. Adjustable damping |
| 9. Good one-way overload protection characteristics |
| 10. Less maintenance workload without mechanical movable parts |
| 11. Unified structure across the entire series, with strong interchangeability of components |
| 12. The membrane material for contact with the medium can be selected from corrosion-resistant materials such as 316L, TAN, HAAS-C, MONEL, etc |
| 13. Explosion proof structure, all-weather use |
| 14. Intelligent HART fieldbus protocol |
|
Performance parameters/performance parameters--------------------------------------------------◆◆
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| 1. Target audience: liquids, gases, and vapors |
| 2. Measurement range: 0-0.06kPa to 0-40MPa |
| 3. Output signal: 4-20mA DC |
| 4、12-45VDC， Usually 24VDC |
| 5. Load characteristics: related to the power supply, the load capacity (load characteristics) at a certain power supply voltage, the relationship between load impedance RL and power supply voltage VS is: RL ≤ (VS-12) |
| 6. Indicator: LCD or LFD digital display |
| 7. Explosion proof: Explosion proof type dIIBT4 b: Intrinsic safety type iaIICT6 |
| 8. Range and zero point: externally continuously adjustable |
| 9. Positive and negative transfer: After the zero point undergoes positive or negative transfer, the absolute values of the upper and lower limits of the range and measurement range cannot exceed 100% of the upper limit of the measurement range (intelligent type: range ratio 15:1). The maximum positive transfer is 500% of the minimum calibration range; The maximum negative transfer is 600% of the minimum tuning range |
| 10. Temperature range: Amplifier operating temperature range: -29~+93 ℃ (LT type is -25~+70 ℃) Measuring element filled with silicone oil: -40~+104 ℃ Flange transmitter filled with high-temperature silicone oil:+15~+315 ℃, ordinary silicone oil: -40~+149 ℃ |
| 11. Static pressure: 1, 4, 10, 25, 32MPa |
| 12. Temperature: Relative humidity is 0-100% RH |
| 13. Volume change:<0.16cm ³ |
| 14. Damping (step response): When filled with silicone oil, it is generally continuously adjustable between 0.2s and 1.67s |
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Technical parameters/Technical parameters-------------------------------------------------------◆◆
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| (Without migration, under standard working conditions, filled with silicone oil, 316 stainless steel isolation diaphragm) |
| 1. Accuracy: ± 0.075% (0 intelligent type), ± 0.1% (intelligent type), ± 0.25%, ± 0.5% |
| 2. Dead zone: None (≤ 0.1%) |
| 3. Stability: Absolute value of basic error not exceeding the maximum range within six months |
| 4. Vibration effect: On any axis, the vibration frequency is 200Hz |
| 5. Power supply impact: less than 0.005% V of the output range |
| 6. Load impact: If the power supply is stable, the load is not affected |
| 7. Installation position impact: Maximum zero point error of 0.24kPa can be generated |
other
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| 1. Isolation membrane: 316 stainless steel, Hastelloy C-276, Monel alloy, titanium or tantalum |
| 2. Exhaust/Drain Valve: 316 Stainless Steel |
| 3. Flanges and fittings: 316 stainless steel |
| 4. Contact medium "O" ring: nitrile rubber, fluororubber |
| 5. Filling fluid: silicone oil or inert oil |
| 6. Bolt: 316L stainless steel |
| 7. Electronic casing material: low copper aluminum alloy |
| 8. Pressure connector: flange 1/4NPT, center distance 54mm; joint 1/2NPT or M20x1.5 male threaded ball cone seal, with center distance of 50.8, 54, 57.2mm when equipped with joint |
| 9. Signal wiring hole: G1/2 |
|
Product selection/product selection------------------------------------------------------------◆◆
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| code name |
name |
| HH |
Capacitive intelligent transmitter |
| |
code name |
Instructions |
| |
0 |
negative pressure |
| |
1 |
gauge pressure |
| |
2 |
Absolute pressure |
| |
code name |
measurement range |
| |
1 |
0-0.06～0.3KPa |
| |
2 |
0-0.25～1.5KPa |
| |
3 |
0-1.2～7.2KPa |
| |
4 |
0-6~36KPa |
| |
5 |
0-30～180KPa |
| |
6 |
0-160～1000KPa |
| |
7 |
0-400～2500KPa |
| |
8 |
0-1600～10000KPa |
| |
9 |
0-4000～25000KPa |
| |
0 |
0-7000～40000KPa |
| |
code name |
Type 1 |
| |
0 |
standard form |
| |
1 |
Single flat flange type |
| |
2 |
Double flat flange type |
| |
3 |
Single socket flange type |
| |
4 |
Double socket flange type |
| |
5 |
One flat and one inserted flange type |
| |
code name |
Flange Specification |
| |
0 |
DN25 |
| |
1 |
DN50 |
| |
2 |
DN80 |
| |
3 |
Other Specifications |
| |
code name |
Type 2 |
| |
0 |
普通型 |
| |
1 |
Ordinary intelligent type (HART communication) |
|
| |
| code name |
meaning |
| MO |
without display |
| M1 |
Digital indicator header |
| E1 |
Ordinary cable joint |
| E2 |
Explosion proof cable joint |
| B1 |
Pipe bending bracket |
| B2 |
Plate mounted bending bracket |
| B3 |
Pipe mounted flat bracket |
| G1 |
Waist flange |
| G2 |
Welded pipe joint |
| G3 |
Integrated three valve group |
| i |
intrinsically safe |
| d |
flameproof |
| G |
≤ 200 ℃ (high-temperature silicone oil) |
| Standard type |
anti-corrosion material |
structural material |
| Isolation diaphragm |
| F12 |
316L |
| F13 |
Hastelloy C-276 |
| F14 |
Monel K-500 |
| F15 |
Tantalum |
| F22 |
316L |
| F23 |
Hastelloy C-276 |
| F24 |
Monel K-500 |
| F25 |
Tantalum |
| F26 |
316L |
| F33 |
Hastelloy C-276 |
| F35 |
Tantalum |
| F44 |
Monel K-500 |
| F47 |
3YC25 |
|
Product dimensions/Product dimensions-----------------------------------------------------◆◆
|
 |
 |
| SP3051 transmitter external dimension diagram |
| Measurement range (code) |
2. 3, 4 |
6 |
7 |
8 |
9 |
| M（mm） |
54 |
52.2 |
55.7 |
57.2 |
59 |
|
Installation method/Installation method--------------------------------------------------------◆◆
|
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| Pipe bending bracket |
Plate mounted bending bracket |
|
| |
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| Pipe mounted flat bracket |
| |
 |
 |
| Pipe bending bracket |
Plate mounted bending bracket |
| |
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| Pipe mounted flat bracket |
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| |
| Connection method of pressure pipe |
 |
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| Welded pipe joint connection |
Integrated three valve group connection |
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Installation requirements/Installation requirements---------------------------------------------------◆◆
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| 1. Prevent the transmitter from coming into contact with corrosive or overheated measuring media. |
| 2. It is necessary to prevent debris from depositing inside the pressure pipe. |
| 3. The pressure conduit should be as short as possible. |
| 4. The liquid column pressure head inside the pressure guiding pipes on both sides should be kept balanced. |
| 5. The pressure pipe should be installed in a location with small temperature gradients and fluctuations. |
| 6. Prevent crystallization or low-temperature freezing inside the pressure pipe. |
| 7. Do not unscrew all exhaust/drain valves to prevent the sealing steel balls from falling off! |
|
Wiring Guide/Wiring guide-----------------------------------------------------------------◆◆
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| Connection of non intelligent on-site wires |
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| Intelligent on-site wire connection |
|
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Logistics Description/Logistics instructionss-----------------------------------------------------◆◆
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