Product Details

Specifications

Standard 4~20mA,RS-485 communication interface
Support upgrade of basic scene control technique

Description

Pressure or differential pressure will cause changing of capacitance value, analog signal convert to digital signal via AD and then being transfered to microprocessor, processed by microprocessor then

convertted to 4~20mA analog electricity signal via DA

Feature

Super performance, use to measure pressure, differential pressure,liquid level, rate of flow.

Accuracy: ±0.075%~±0.1%F.S

Stability: ±0.25%

Standard 4~20mA,RS-485 communication interface

Support upgrade of basic scene control technique

Application

Compatible with 316LSS,noncorrosive liquids.

Shipping and aviation industry.

Hydraulic pressure and pneumatic control system

Apply in Petroleum industry, chemical industry, electric power, metallurgy, hydrology etc process control.

Range

Range code	Range		Measuring range
Range code	Min.	Max.	Measuring range
4	0.374KPa	37.4KPa	-37.4~37.4KPa
5	1.868KPa	186.8KPa	-186.8~186.8KPa
6	6.9KPa	690KPa	-690~690KPa
7	20.68KPa	2068KPa	-2068~2068KPa

Technical Data

Output	Analog output: two –wire 4-20mADC
Output	Digital output: two –wire 4-20mADC and superimposing variable digital signal accord with HART
Power supply	supply voltage 12.5-45VDC
Limit load	Max load resistor Rmax in loop decided by the supply voltage, see the below drawing. HART PROTOCOL require the load resistor not less than 250Ω,not more than 600Ω
Communication distance	Max. 1.5Km, multi-address communication can connect 15 smart transmitters Max.
Display	4 digital display,5 digit LCD display, pointer type.
Explosion-proof	ExiaIICT5;explosion suppression type
Zero offset	Can positive transfer or negative transfer, but can not overstep the utmost value
Temperature	ambient temperature -40-85°C(When choose LCD : -20-70°C)
Medium temperature	-40~104°C
Static pressure and single side overpressure	3.45KPa(absolute pressure)~31.2MPa(gauge pressure)
Relative humidity	5~98%RH
Run-up time	less than 5 sec.
Capability change	Less than 0.16cm3
Damp adjust	0.20~25 second
Malfunction alarming	If occur malfunction, automatism diagnose function will output 3.9 or 21.0mA
Configuration protection	To avoid the datas are modified random, can utilize software or protect switch lock the record data

Performance Data

Reference condition	zero is the lower limit and not offset, temperature 25°C, Atmospheric pressure, 24VDC power, silicon oil , diaphragm 316L, data adjust range the same as the up and lower limit of the range.
Accuracy	±0.075~±0.1%
Stability	±0.1%URL/year
Tem. influence	±(0.05%URL+0.15%FS+200Pa)20°C
Static pressure influence	zero error 0.1URL/6.9Mpa; Zero error 0.1URL/1.7MPa
Vibration influence	withstand frequency 200Hz at any direction, arouse error ±0.05%URL
Power influence	<0.005%/V
Load influence	no load influence
Mounting position influence	about 250Pa zero offset, can be eliminate via calibration, no range influence.
RF interference influence	drift is ±0.1%span in the condition of 30-1000MHz frequency and the most field intensity 10V/m

Configuration parameter

wetted material	Diaphragm: 316L SS, Hastelloy , Monel or Tantalum Vent /drain valve: 316L SS, Hastelloy , Monel or Tantalum Flange and joint : steel coated with cadmiumed ,galvanized steel, 316L SS, Hastelloy O-ring: Fluorin rubber
other material	Filled: silicon oil Bolt: galvanized steel Electric housing: low copper and aluminium alloy. Cover O-ring: NBR Coating: polyester epoxy resin
Pressure port	Flange connection: 1/4-18NPT Joint pressure port:1/2-14NPT
Electrical connection	Lead tube connection: M20X1.5,1/2-14NPT
Weight	3.6kg(no include option parts)