Product Details

Specifications

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

Capacitive meter

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.

Features :

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℃(When choose LCD : -20-70℃)
Medium temperature	-40~104℃
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

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