• 針對絕壓或表壓
  • 高精度和可重複性
  • 久經考驗的緊湊型直通設計
  • 用於壓力控制的板載 PID 控制器
  • 模擬、RS232 和現場總線通信
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Digital Electronic Pressure Meters

Bronkhorst® model P-502C Electonic Pressure Transducers (EPTs) are suited for precise measurement of pressure ranges between 2…100 mbar and 1,28…64 bar absolute or between 0,7...35 mbar and 1,28...64 bar gauge. The EPT 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 PID controller for optional pressure control by means of a separately mounted 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.

Technical specifications

Measurement / control system
Absolute pressure sensors
Code: 350A Ranges (FS): 100 ... 350 mbara P-max: 1,0 bara Burst pressure: 1,4 bara
Code: 1K1A Ranges (FS): 0,35 ... 1,1 bara P-max: 3,1 bara Burst pressure: 4,2 bara
Code: 6K0A Ranges (FS): 1,1 ... 6 bara P-max: 10,5 bara Burst pressure: 14 bara
Code: 21KA Ranges (FS): 6 ... 21 bara P-max: 62 bara Burst pressure: 84 bara
Code: M10A Ranges (FS): 20 ... 100 bara P-max: 200 bara Burst pressure: n.a.
Relative pressure sensors
Code: 100R Ranges (FS): 35 ... 100 mbarg P-max: 0,7 barg Burst pressure: 0,8 barg
Code: 350R Ranges (FS): 100 ... 350 mbarg P-max: 1,0 barg Burst pressure: 1,4 barg
Code: 1K1R Ranges (FS): 0,35 ... 1,1 barg P-max: 3,1 barg Burst pressure: 4,2 barg
Code: 6K0R Ranges (FS): 1,1 ... 6 barg P-max: 10,5 barg Burst pressure: 14 barg
Code: 21KR Ranges (FS): 6 ... 21 barg P-max: 62 barg Burst pressure: 84 barg
Accuracy (incl. linearity and hysteresis)standard: ± 0,5 % FS
Repeatability< 0,1 % RD
Pressure rangeability1:50 for pressure meter;
1 : 20 for P2-control; 1 : 5 for P1-control
Response time (sensor)2 msec
Operating temperature-10 … +70 °C
Temperature sensitivity0,1% FS/°C
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Attitude sensitivitymax. error at 90° off horizontal < 0,3 mbar
Warm-up timenegligible
Mechanical parts
Material (wetted parts)stainless steel 316L or comparable
Process connectionscompression type or face seal (VCR/VCO) couplings
Sealsstandard: FKM/Viton®;
options: EPDM, FFKM/Kalrez®, FDA and USP Class VI approved compounds
Weight0,4 kg
Ingress protectionIP40
Electrical properties
Power supply+15 … 24 Vdc
Max. power consumption meter
15 V
24 V
at voltage I/O
95 mA
65 mA
at current I/O
125 mA
85 mA
extra for fieldbus
<75 mA
<50 mA
Max. Power consumption controller
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
Analog output0…5 (10) Vdc or 0 (4)…20 mA (sourcing output)
Digital communicationstandard: RS232;
options: CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS
Electrical connection
Analog/RS2329-pin D-connector (male);
PROFIBUS DPbus: 9-pin D-connector (female);
power: 9-pin D-connector (male);
CANopen® / DeviceNet™5-pin M12-connector (male);
FLOW-BUS/Modbus-RTU/ASCIIRJ45 modular jack
Modbus TCP / EtherNet/IP / POWERLINK2 x RJ45 modular jack (in/out);
EtherCAT®/ PROFINET2 x RJ45 modular jack (in/out);
Control valve options
External actuator options to be connected to the controller
Certification for hazardous areas
Approvals / certificates

Technical specifications subject to change without notice.

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.

For dimensional drawings and hook-up diagrams please visit the product page on our website


EL-PRESS brochure
Quick installation guide EL-PRESS
Hook-up diagrams
Analog IO - RS232
Optional Bus and IO Configurations
Dimensional drawings
Dimensions Adapters
Dimensions Digital Cases
Solids 3D


Rm. 1 & 2, 4F., No.38, Taiyuan St., Zhubei City, Hsinchu County 302, Taiwan (R.O.C.)
電話 +886 3-5600-518
[email protected]

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