Hart 3MPa 4 20mA RS485 Differential Pressure Transmitter 100: 1 Factory Price Chemical Industry Buyers High Performance Differential Pressure Transmitter

Product Description

HART 3Mpa 4 20mA RS485 Differential Pressure Transmitter  100:1  Factory Price Chemical Industry Buyers High Performance  differential pressure transmitter

Product Description

 

1. Product overview

QYB401 Remote differential pressure transmitter
QYB401 Remote differential pressure transmitter adopts monocrystalline silicon sensor chip made of advanced MEMS technology from Germany, which combined with the exquisite production process, realises the high accuracy and ultra-high stability of the product. Embedded with intelligent signal processing module, it realises the perfect combination of pressure and temperature compensation, providing reliable measurement accuracy and excellent long-term stability.
QYB401-DWF double-flange remote differential pressure transmitter can be used to measure the level, density, pressure of liquid, gas or steam, and convert it into 4-20mA DC (superimposed HART communication) current signal output;
QYB401-DWF series products can provide HART/485-Modbus/FF and other communication protocols.
 

1. Applications

1. Petroleum/chemical/fossil              

Used in conjunction with throttling devices to provide accurate flow measurement of pressure and level in pipelines and storage tanks.

1. Electric power/city gas

Require high stability and high accuracy of pressure, flow, level measurement and other places.

1. Pulp/Paper                   

Used for pressure and negative pressure measurement of storage tanks and other places requiring high stability and accuracy.

1. Steel/Nonferrous Metals/Ceramics          

For pressure, flow and level measurement of chemical and corrosion resistant liquids.

1. Mechanical equipment/shipbuilding               

Used in places where stable measurement is required under conditions of strict control of pressure, flow, and liquid level indicators.
 

1. Main features

1. High precision grade                    

German high precision monocrystalline silicon sensor chip, accuracy up to ±0.05%.

1. Strong load resistance               
2. Excellent environmental adaptability                  

Intelligent pressure compensation and temperature compensation eliminates the transmitter from being affected by temperature and minimises the comprehensive test error on site.

1. Excellent long-term stability                 

Stability can be maintained at 0.1%FS/5 years.

1. Flexible remote assistance commissioning function             

Through Hart, FF bus, RS485 communication and panel keys to achieve remote and local parameter setting function configuration.

 

Model
QYB401-DF/DWF			Single/Double flange remote differential pressure transmitter
Measuring media
Measurement of pressure in liquids, gases or vapours
Type of measurement
Gauge pressure measurement, absolute pressure measurement
Output
4~20mA+HART
4~20mA+RS485
FF Fieldbus Protocol
Measurement range (the following is the gauge pressure range, absolute pressure range, please consult an engineer)
Range Code		Range			Overload
6k		-6KPa~6KPa			16MPa
40k		-40KPa~40KPa			25MPa
250k		-100KPa~250KPa			25MPa
1M		-100KPa~1MPa			25MPa
3M		-100KPa~3MPa			25MPa
Flange form		Nominal dimensions			Minimum range
Level Flange		DN50/2"			10kPa
Level flange		DN80/3"			2kPa
Reference accuracy (including linearity from zero, backlash, repeatability)
±0.05%		±0.075%		±0.1%
Reference accuracy for adjustable ranges (up to 100:1)
If TD>10 (TD=maximum range/adjustment range), then yes:
±(0.005×TD)%		±(0.0075×TD)%		±(0.01×TD)%
Square root output accuracy 1.5 times the linear reference accuracy
Overpressure effects
±0.05%*Span/10MPa
Long term stability
±0.1%*Span/5 years
Power impact
0.001%/10V(12~36)V DC, Negligible
Range limit
Adjustable at will within the upper and lower limits of the range It is recommended to select a range code with the lowest possible range ratio to optimise the performance characteristics
Zero setting
Zero and range can be adjusted to any value within the measurement range in the table, as long as: calibration range ≥ minimum range
Mounting position effect
Changes in mounting position in the direction parallel to the diaphragm surface will not affect the zero point. If the mounting position is not parallel to the diaphragm surface, it can be corrected by adjusting the zero point. No range influence. Flange products must be zeroed after installation before use.
Insulation resistance
100MΩ/100VDC
Response time
Damping time of electronic circuit parts: 0s~100s range adjustable; Damping time of sensing diaphragm box (sensing isolation diaphragm and silicone oil filling liquid): ≤ 0.2s; Power-on start-up time after power failure: ≤ 6s; Restore factory setting: ≤ 31s
Ambient temperature
-40~+85ºC; -20~+70ºC(With LCD display, for  seals)
Alarm current
Downline	3.9mA
Upper line	22.8mA
Supply voltage
12~33V DC
Digital communication load range:R=(Us-12V)/0.0228 Ω
250~600Ω
Electromagnetic compatibility(EMC)
See Schedule of Electromagnetic Compatibility
Isolation diaphragm material
Stainless steel 316L
Hastelloy C-276
Tantalum
Stainless steel 316L sprayed PTFE, pasted PTFE
Stainless steel 316L gold plated
Process connection materials
Stainless steel 304, 316L optional
Nut and bolt material
Stainless steel (304), carbon steel zinc plated (12.8)
Transmitter housing material
Aluminium alloy body, polyurethane painted exterior
Stainless steel 304, 316
Seal material
Nitrile rubber (NBR), fluorine rubber (FKM), polytetrafluoroethylene (PTFE)
Case Seals
Silicone Rubber
Filling fluid
Silicone oil, edible oil, fluorine oil
Electrical connection
M20X1.5 or NPT1/2 female thread, standard with M20X15 nylon cable sealing buckle, applicable wire diameter 6mm~8mm; optional metal explosion-proof connector
Product weight
6.6KG (DN50/PN16, 3m capillary product reference weight)

 

 

No.	Test Items	Basic standard	Test condition	Performance level
1	Conducted Interference (Enclosure)	GB/T 9254.1/CISPR 32	30MHz~1000MHz	Qualified
2	Conducted interference (DC power port)	GB/T 9254.1/CISPR 32	0.15MHz~30MHz	Qualified
3	Electrostatic Discharge (ESD) Immunity	GB/T 17626.2/IEC61000-4-2	8kV (Contact), 8kV (Air)	A
4	RF electromagnetic field radiation immunity	GB/T 17626.3/IEC61000-4-3	10V/m (80MHz~1GHz)	A
5	Industrial frequency magnetic field immunity	GB/T 17626.8/IEC61000-4-8	30A/m	A
6	Electrical fast transient pulse group immunity	GB/T 17626.4/IEC61000-4-4	4kV(5/50ns,100kHz)	A
7	Surge Immunity	GB/T 17626.5/IEC61000-4-5	1kV (between lines) 2kV (between ground lines) (1.2/50μs)	A
8	RF field induced conducted nuisance immunity	GB/T 17626.6/IEC61000-4-6	3V(150kHz~80MHz)	A

Detailed Photos

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FAQ

Q:What kind of products do you offer?
A:We supply pressure transmitter.Level transmitter Temperature transmitter and Flow meter.

Q:Could I get samples?
A:Yes I will help you to get the samples as soon as we can .

Q:How long is the shortest lead time?
A:For General parameters the shortest lead time is 4working days.For special parameters we will try our best to satisfy you .

Q:Could I visit your factory?
A:Of course. Welcome to visit our factory produce line and instruments

Q.What are the main markets for your industry?
A.India, Brazil,United Arab Emirates.Turkey Vietnam,Britain United States and France

Q.Could you share discount?
A.Yes. According purchase QTY Will share discount .

Ordering Guide : Pls confirm below parameters to me .
1.Range ?
2.Output : ?
3.Thread size is M20X1.5 or BSP1/4 ?