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0250 Series Power Supply, Readout & Set Point Controllers

Models 0251 / 0254

The 0250 Series is an innovative, reliable microcomputer-based controller providing power for up to four Brooks Instrument thermal mass flow, Quantim Coriolis mass flow, and/or pressure devices; all in a new compact design. Additionally, the 0250 Series can be used to generate flow set point commands, display flow rate, totalize flow, provide blending multiple flow streams, and more. This fully RoHS compliant device has a very user-friendly interface and is offered with multiple mounting capabilities such as rack mount (0254 only), panel mount, and table-top mount.


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0250 Data Sheet


  • Variety of mechanical configurations for users’ specific application (panel, desktop, rack mount)
  • Self-diagnostics on every power-up ensures device is fully functional
  • Totalization can be used for inventory management
  • Batch control allows single or multi-channel batch recipes
  • Blending (0254 only) supports master slave blending configuration and operation
  • Gas factor scaling allows user to adapt 0250 Series and mass flow device to any fluid
  • Valve Override Control (VOR) – open, closed or normal
  • Large, graphic, high-contrast, eight (8) line backlit display
  • Brooks Smart DDE Software simplifies data exchange between the 0250 Series and commonly used programs such as Microsoft® Excel, Test Point™ and LabVIEW™
  • RS232 serial port allows remote control, data logging, and remote alarms


  • Valve open (using VOR) allows rapid purge or chamber flooding
  • Easy-to-read display shows all process variables and setpoints for quick reading and adjustment

Product Type

Power Supply, Readout & Setpoint Controller

Innovative solution for up to four mass flow and/or pressure devices
Power Input
Voltage: 12-24 Vdc required, -15 Vdc permitted
Current: 400 mA max current draw per channel
Instrument power draw: 0.8 Watts
Optional power module: 100-240 Vac, 47-63 Hz
Power Output
+15V/2.0A, -15V/1.0A or 12-24 Vdc/2.0A
Signal Input / Output
0(1)-5 Volts, 0(2)-10 Volts, 0(4)-20 mA
Digital Communication
Full communications capability for remote readout, setpoint, control, programming and data acquisition via RS232.
Mounting Options

Panel mount kit

Table top kit

Rack mount kit (0254 only, can be used to retrofit into 0152/54 installations)

Rack mount kit with 19” rack (0254 only)

Operating: 32-122°F (0-50°C), 0-95% non-condensing
Temperature - Storage
Ship/Storage: -40-185°F (-40-85°C), 0-95% non-condensing

CE Mark: EMC Directive EN61326-1:2013
FCC Part 15 Class A, Part 68

Environmental Compliance

RoHS EPD 2011/65/EU

UL-USA & Canada UL 61010 electrical safety for general purpose indoor use
0251 0254

Single Channel

Four Channel

Filename File Type Documents By Language
Data Sheet pdf English
Installation & Operation Manual pdf English
Quick Start Guide pdf English
CE EU Declaration of Conformity Certificate pdf English
0250 Series Readout Application

Allows you to drive the 0250 without the need for any LabVIEW™ development environment.

Brooks LabVIEW™ DLL

Enables users to set-up communication with Brooks® digital mass flow controllers, pressure controllers and secondary electronics. The DLLs are to be used when creating your own application in LabVIEW™.

Smart DDE

Dynamic Data Exchange software allows user to make bi-directional links between Windows® based applications and Brooks Instrument RS485 S-Protocol devices.