EL-PRESS P-712CV (P1-control)

디지털 전자식 역방향 압력 컨트롤러

역방향 압력 제어 (upstream 압력 "P1" 제어)
절대 압력 혹은 게이지 압력
높은 정확도 및 높은 재연성
입증된 컴팩트한 관류 디자인
컴팩트한 디자인의 온보드 PID 컨트롤러 및 다이렉트 작동 제어 밸브
아날로그, RS232 및 필드버스 통신

Digital Electronic Back Pressure Controllers

Bronkhorst^® model P-712C Back Pressure Controllers (EPCs) are suited for precise measurement and control of upstream pressure ranges between 1,28…64 bar and 2…100 bar absolute or gauge. The EPC has a well-proven compact thru-flow design and includes a diaphragm type piezo-resistive pressure sensor, a microprocessor based pc-board with signal and fieldbus conversion and a compact, fast acting control valve.

EL-PRESS series are equipped with a digital pc-board, offering high accuracy, excellent temperature stability and fast response. The main digital pc-board contains all of the general functions needed for measurement and control. In addition to the standard RS232 output the instruments also offer analog I/O. As an option, an on-board interface can be mounted to provide CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS protocols.

기술 정보

Measurement / control system







절대 압력 센서	Code: M10A - Ranges (FS): 20 ... 100 bara - P-max: 200 bara Code: M40A - Ranges (FS): 100 ... 400 bara - P-max: 500 bara



정확도 (선형도 및 이력현상 포함)	standard: ± 0,5 % FS



Repeatability	< 0,1 % RD










Pressure rangeability	measurement: 1 : 50 (2…100%) control: 1 : 5 (with flow range 1 : 50)












Control stability	≤ ± 0,05 % FS (typical for 1 l_n/min N₂ at specified process volume)


Operating temperature	-10 … +70 °C



Temperature sensitivity	0,1% FS/°C









Max. Kv-value	6,6 x 10^-2


Leak integrity, outboard	tested < 2 x 10^-9 mbar l/s He



Attitude sensitivity	max. error at 90° off horizontal < 0,3 mbar
Warm-up time	negligible

Mechanical parts







Material (wetted parts)	stainless steel 316L or comparable








Process connections	compression type or face seal (VCR/VCO) couplings

Seals	standard: FKM/Viton®; options: EPDM, FFKM/Kalrez®, FDA and USP Class VI approved compounds
Weight	0,7 kg
Ingress protection	IP40

Electrical properties

Power supply

+15 … 24 Vdc

Max. power consumption

Supply
15 V
24 V

at voltage I/O
290 mA
200 mA

at current I/O
320 mA
215 mA

extra for fieldbus
<75 mA
<50 mA

아날로그 출력

0…5 (10) Vdc or 0 (4)…20 mA (sourcing output)

Digital communication

standard: RS232;
options: CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS

Electrical connection
아날로그/RS232	9-pin D-connector (male);



PROFIBUS DP	bus: 9-pin D-connector (female); power: 9-pin D-connector (male);
CANopen® / DeviceNet™	5-pin M12-connector (male);

FLOW-BUS/Modbus-RTU/ASCII	RJ45 modular jack

Modbus TCP / EtherNet/IP / POWERLINK	2 x RJ45 modular jack (in/out);



EtherCAT®/ PROFINET	2 x RJ45 modular jack (in/out);

Control valve options

External actuator options to be connected to the controller

Certification for hazardous areas

Approvals / certificates

Note: The measuring cell of the pressure sensor is separated from the external pressure by a thin, sensitive stainless steel diaphragm, and the sealed off cavity between diaphragm and cell is filled with oil. Since the standard oil filling is flammable, Bronkhorst advises to take precautions when oxygen or any other explosive fluid is used.

Downloads

Brochures
EL-PRESS brochure

Manuals
Manual EL-PRESS
Quick installation guide EL-PRESS

Hook-up diagrams
Analog IO - RS232
DeviceNet
EtherCAT
FLOW-BUS
Modbus RTU/ASCII
PROFIBUS DP
PROFINET
CANopen
EtherNet/IP
Modbus-TCP
POWERLINK
Optional Bus and IO Configurations

Dimensional drawings
P-702CV_P-712CV
Dimensions Adapters
Dimensions Digital Cases

Solids 3D
P-702CV_P-712CV

EL-PRESS P-712CV (P1-control)

Digital Electronic Back Pressure Controllers

기술 정보

Recommended accessories

Related products