EL-PRESS Metal Sealed Pressure Meters / Controllers

Metal-Sealed Digital Electronic Pressure Meters

Bronkhorst^® model P-502CM Electonic Pressure Transducers (EPTs) are designed especially to meet the requirements of the semicon market as well as other high purity gas applications. The instruments feature high surface quality and are of modular construction with metal-to-metal seals that ensure long-term leak tightness. The P-502CM is suited for precise measurement of pressure ranges between 2…100 mbar and 1,28…64 bar absolute or 0,42...21 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.

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: 64KA - Ranges (FS): 21 ... 64 bara - P-max: 100 bara - Burst pressure: n.a.
Relative pressure sensors	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 rangeability	1:50 for pressure meter; 1 : 20 for P2-control; 1 : 5 for P1-control





Response time (sensor)	2 msec









Operating temperature	-10 … +50 °C up to +70°C on request



Temperature sensitivity	0,1% FS/°C












Leak integrity, outboard	< 2 x 10^-11 Pa.m³/s He



Attitude sensitivity	may be mounted in any position
Warm-up time	negligible

Mechanical parts







Material (wetted parts)	stainless steel 316L or comparable








Process connections	1/4" face seal couplings

Seals	metal-to-metal (no rings)
Weight	0,6 kg
Ingress protection	IP40

Electrical properties

Power supply

+15 … 24 Vdc

Max. power consumption meter

Supply
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

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

Analog output

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
Analog/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
Metal Sealed Mass Flow and Pressure brochure

Manuals
Manual EL-PRESS
Quick Start Guide EL-PRESS Metal Sealed

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 drawing
P-502CM

EL-PRESS Metal Sealed P-502CM

Metal-Sealed Digital Electronic Pressure Meters

Technical specifications

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