Bronkhorst

LIQUI-FLOW™ 'Industrial Style' L23I+C2I

數字熱質式液體質量控制計,工業風格

  • 快速準確的測量信號
  • 對安裝位置不敏感
  • 適用於低沸點液體
  • 模擬、RS232 或現場總線通信
  • 堅固的 IP65 外殼
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LIQUI-FLOW™ 'Industrial Style'L23I+C2I

Liquid Mass Flow Controllers for low flow rates, industrial style

Bronkhorst® model L23I+C2I Liquid Flow Controllers (LFCs) are suited for precise measurement and control of flow ranges between 2…100 g/h and 20...1000 g/h at operating pressures up to 100 bar. The LFC consists of a thermal mass flow sensor and a microprocessor based pc-board with signal and fieldbus conversion and a PID controller for mass flow control by means of an integrated control valve. The "Industrial Style" LIQUI-FLOW™ model is of rugged design (IP65) for use in industrial environments or even Zone 2 hazardous areas, with optional ATEX Cat. 3 approval.

LIQUI-FLOW™ 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 DeviceNet™, PROFIBUS DP, Modbus or FLOW-BUS protocols.


Technical specifications

Measurement / control system
Flow range (intermediate ranges available)min. 2…100 g/h
max. 20…1000 g/h
(based on H2O)
Accuracy (incl. linearity) (based on actual calibration)± 1 % FS
Repeatability< 0,2 % FS (typical H2O)
Turndown ratio1:50 (2…100%)
Settling time (in control, typical)< 2 sec.
Operating temperature5 … 50 °C
Temperature sensitivity± 0,1% FS/°C
Max. Kv-value2,37x10-3
Max. fluid viscosity0.1 Pa*s
Attitude sensitivitynegligible
Warm-up time30 min. for optimum accuracy;
2 min for accuracy ± 2% FS
Mechanical parts
Material (wetted parts)stainless steel 316L/320
Pressure rating (PN)100 bar abs
Max. ΔP10 bar dif
Process connectionscompression type or face seal (VCR/VCO) couplings
Purge connection1/8” OD compression type or 1/8" VCR
SealsFFKM/Kalrez®; other on request
Ingress protectionIP65
Electrical properties
Power supply+15 … 24 Vdc +/-10%
Max. power consumption
Supply
15 V
24 V
at voltage I/O
285 mA
250 mA
at current I/O
305 mA
270 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/RS2328 DIN (male)
PROFIBUS DPbus: 5-pin M12 (female);
power: 8 DIN (male)
CANopen® / DeviceNet™5-pin M12 (male)
FLOW-BUS/Modbus-RTU/ASCII5-pin M12 (male)
Modbus TCP / EtherNet/IP / POWERLINKbus: 2 x 5-pin M12 (female) (in/out);
power: 8 DIN (male);
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.

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

Downloads

Brochures
LIQUI-FLOW series L10-L20 brochure
Manuals
General manual digital instruments
Operating instructions digital instruments
Certificates
ATEX: KEMA 10ATEX0111X
Hook-up diagrams
Analog IO - RS232
DeviceNet
FLOW-BUS
Modbus-RTU
PROFIBUS DP


台灣柏朗豪斯特股份有限公司

新竹縣竹北市台元街三十八號四樓之一、二
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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