EST4300 Smart Pressure Transmitters (Differential Pressure)

EST4300 Smart Differential Pressure Transmitter is microprocessor-based measuring instrument. With advanced microprocessor technology-enabled temperature and nonlinear compensation, EST4300 Smart Differential Pressure Transmitter features higher measurement accuracy, better temperature characteristic, and stability and reliability. EST4300 DP, which is compatible with HART 475 field communicator, is used to measure the level, density, and pressure of liquid, gas, and steam, convert it to 4-20mAdc current signal outputs.

Features

High level stability and precision
Excellet overload capacity
Enhanced self-diagnostic capacity
Independent Zero & Span Adjustment
Rugged construction for shock resistance
Digital compensation technology compensating for temperature and static pressure
No mechanical transmission parts, less maintenance to minimize downtime
Perfect local and remote set-up and calibration function

Specification
Operating Type	SMART, 2 wire
Range	0~2.1-21Mpa
Display	LCD with Engineering Units
Zero Span Adjust	YES
Over Range Protection	2 Times Max. Pressure
Square root Extraction	YES
Accuracy	±0.1%
Stability	± 0.125% of URL
Ingress Protection	IP65/IP67
Power Supply	24 VDC (Loop Powered)
Output Signal	4-20Ma, HART
Elec. Connection	2 Nos. 1/2" NPT(F)
Material of Element	SS316
Material of Body	SS316
Material of Housing	Die cast Alu. Epoxy Coating
Material of Wetted Part	SS316

Span and Measuring Range
Span	Pressure Range	Level Range	GP	AP	DP	HP
2	0ｰ0.1~1.5kpa	0-10~150mmH2O	*		*
3	0ｰ0.7~7.0kpa	0-70~700mmH2O	*		*
4	0ｰ4.0~40kpa	0-400~4000mmH2O	*	*	*	*
5	0ｰ20~200kpa	0-2000~20000mmH2O	*	*	*	*
6	0ｰ70~700kpa	0-0.7~7kgf/cm2	*	*	*	*
7	0ｰ210~2100kpa	0-2.1~21kgf/cm2	*	*	*	*
8	0ｰ700~7000kpa	0-7.0~70kgf/cm2	*	*	*
9	0ｰ2.1~21Mpa	0-21~210kgf/cm2	*		*
0	0ｰ4.1~41Mpa	0-41~410kgf/cm2	*

Application

Electricity
Water Conservancy
Metallurgy
Environmental Protection
Petrifaction
Pharmacy
Paper-making
Furnace

Technology

EST4300 Smart Transmitter consists of sensor module and electronic board. The sensor includes capacitance sensor, measuring diaphragm detection circuit, temperature sensor and temperature compensation circuit; the electronics board includes microprocessor controller and external circuit, capable of pressure signal conversion of 4～20mA dc.