Model 601-CB Basic Series II Mass Flow Controller

601CB Product Highlights:
  • Accurate mass flow control
  • Fast response, excellent repeatability
  • Analog I/O - signals: 0 to 5 (10) Vdc or 0 (4) to 20 mA
  • RS232 Communication
  • Modbus-RTU
  • Control characteristics digitally configurable by user
Parker’s Model 601 Basic Series II Mass Flow Controller (MFC) are standard and straightforward instruments. They provide accurate measurement, fast response and stable control in common gas flow applications. Model 601 Basic is an economical solution for installation in OEM systems. The instruments operate on the principle of thermal mass flow measurement in ranges starting from 0.2 to 10 ml/min up to 1.4 to 70 l/min. They offer analog I/O signals as well as digital RS232 communication and/or Modbus-RTU as a standard feature.

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Measurement/Control System
Accuracy (incl. linearity)
(based on actual calibration) 
±1.0% full scale
Turndown 1 : 50 (in digital mode up to 2 : 100)
Repeatability <0.2% Reading
Settling Time (Controller) Approximately 1 second
Control Stability <±0.1% Full Scale (typical for 1 l/min N2)
Operating Temperature 0 to +50°C
Operating Pressure 145 PSIG
Temperature Sensitivity Zero: <0.1% Full Scale/°C; span: <0.1% Reading/°C
Leak Integrity, outboard Tested < 2 x 10-9 mbar l/s He
Warm-Up Time 30 min. for optimum accuracy
Control Valve Normally closed solenoid valve

Mechanical Parts
Material (wetted parts) Stainless steel
Process Connections 1/4” BSPP female thread;
Optional accessories: compression type or face seal couplings in various inch or metric sizes
Seals Standard: Viton; Options: Kalrez (FFKM)
Ingress Protection (housing) IP40

Electrical Properties
Power Supply +15-24Vdc
Power Consumption Controller: max. 320 mA
Analog Output/Command 0-5 (10) Vdc or 0 (4)-20 mA - specify - (Sourcing output)
Digital Communication RS232 or Modbus-RTU
Electrical Connection 9-pin D-connector (male)
EMC CE declaration

Models and Flow Ranges

Model Min. Flow
Max. Flow
601CB 0.2 to 10 ml/min 0.4 to 20 l/min
601AB 0.4 to 20 l/min 1.4 to 70 l/min

Technical specifications and dimensions subject to change without notice.

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