Hart 4-20mA Smart Capacitive Differential Pressure Transmitter

●Adopting microprocessor to improve its flexibility and functions.
●Have strong self-diagnostic capability.
●Wide ranges from 0~100Pa to 42MPa.
●Accuracy better than 0.1%FS or 0.2%FS, rangeability 15:1.
●Zero and span adjustment without mutual influence.
●Have prefect remote setting, local setting as well as adjustment function.
●2-wire system, Hart Protocol.
●Use digital compensation technology to compensate for temperature and system pressure error.
●Good stability, high accuracy, adjustable damping, strong unidirectional overload capacity.
●No mechanical transmission parts, little repair work, strong vibration resistance.
●All general parts, convenient maintenance.
●Optional of diaphragm material (contact medium), explosion-proof.
●Super performance and reliability.

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The company has formed a serialized and large-scale Pressure Transmitter With Indicator, Digital Manometer, Oil Pressure Transmitter material formulation system, and its product R&D technology and industrialization capabilities have reached the international advanced level. We rely on technical personnel, production equipment, and constantly update technology to provide timely and effective products and services needed by users. With a rapid advancement and our buyers come from both in domestic and foreign countries. Our team takes pride in providing reliable and efficient global trade services.

Capacitive Differential Pressure Transmitter

Description of capacitive differential pressure transmitter

UIB3351 capacitive differential pressure transmitters are suitable for the measurement of flow, level and pressure (differential pressure, gauge pressure and absolute pressure), this product has strong adaptability and high reliability, and also has good anti-interference ability and zero stability. Its accuracy reaches 0.1%FS. 3351 can be made with HART Protocol communication, can be communicated with many hand-held communicator like HK- 375 & Rosemount 275 etc.

UIB3351 capacitive differential pressure transmitter is composed of pressure sensor and PCB. The pressure sensor includes sensing element, EEPROM and other parts; PCB includes micro processor, digital/analogue converter, digital communication and memory EEPROM etc, to complete the conversion from pressure signal to 4~20mA DC signal.

UIB3351 series intelligent pressure transmitter includes 8 types：

UIB3351DP differential pressure transmitter

UIB3351HDP high system differential pressure transmitter

UIB3351GP gauge pressure transmitter

UIB3351AP absolute pressure transmitter

UIB3351DP flow transmitter

UIB3351LT level transmitter

UIB3351GP remote pressure transmitter

UIB3351DP remote capacitive differential pressure transmitter

Features of capacitive differential pressure transmitter

●Adopting microprocessor to improve its flexibility and functions

●Have strong self-diagnostic capability

●Wide ranges from 0~100Pa to 42MPa

●Accuracy better than 0.1%FS or 0.2%FS, rangeability 15:1

●Zero and span adjustment without mutual influence

●Have prefect remote setting, local setting as well as adjustment function

●2-wire system, Hart Protocol

●Use digital compensation technology to compensate for temperature and system pressure error

●Good stability, high accuracy, adjustable damping, strong unidirectional overload capacity

●No mechanical transmission parts, little repair work, strong vibration resistance

●All general parts, convenient maintenance

●Optional of diaphragm material (contact medium), explosion-proof

●Super performance and reliability

Specifications of capacitive differential pressure transmitter

Application	measurement of gas , liquid or steam
Pressure range	0~0.1kPa...40MPa
Accuracy	0.1%FS,0.2%FS
Output	2 - wire 4~20mA, and superimposes conforms to HART Protocol
Rangeability	15:1
Power supply	12~45V DC, standard 24VDC
Load resistance	the max. allowed load resistance on circuit is determined by power supply; for HART, 250Ω≤load resistance ≤ 1100Ω
Indicator	0~100 linear meter or digital indicator
Stability	not exceed the basic error absolute value of the max. range within 12 months
Temperature effect	<0.03%FS/10 for GP DP transmitter
System pressure effect	±0.25%FS/10MPa for DP type(can be revised in pipeline pressure); ±0.2%FS/32MPa for HP type,(can be revised in pipeline pressure)
Power supply effect	NA
EMI / RFI interference effect	20~1000MHz, output drift less than 0.01%FS if field intensity reach 30V/m
Influence of vibration	in arbitrary axis,0.05%FS/g @ 100HZ
Mounting position effect	max. 0.24kPa. When liquid membrane is mounted horizontally, zero drift at most 1.25kPa. Zero drift can be modified and without any influence for range
Influence of load	in the power supply range, no load effect
Temperature range	1. ambient temperature:-40~+85℃,-20℃ ~+65( for indicator) 2. medium temperature range: -40~+120℃ 3. storge temperature range: -40~+105℃
Relative humidity	0~100%RH
Weight	3.5kg( standard configuration without mounting kits,height: 190mm ) electrical connection: M20x1.5 or NPT1/2
Process Connection	1. 1/4NPT Femal 2. connector
Diaphragm material	316L, hastelloy-C276, or monel
Vent/drain value	316L,hastello-C276,or monel
O-ring materials	nitrile rubber, fluorine rubber, Teflon, metal sealing ring
Electronic shell and coating	low copper alloy, anodic oxidation, spraying polyurethane
Sensor filling liquid	silicone, fluorosilicone oil
Meter cover and display box	10mm toughened glass, nitrile rubber seal
Protection	IP67
Explosion-proof	intrinsic safety: Exia II Ct6; flame proof：Exd II CT6

Our company insists all along the quality policy of 'product quality is base of enterprise survival; customer satisfaction is the staring point and ending of an enterprise; persistent improvement is eternal pursuit of staff' and the consistent purpose of 'reputation first, customer first' for Hart 4-20mA Smart Capacitive Differential Pressure Transmitter. Our products are available in a range of sizes, styles, and specifications to meet diverse needs. We have set up a customer service center, with a short-term rapid response mechanism, able to respond to customer needs.

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