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temperature control
High Performance PID Controllers
temperature controller
FB900, FB400 New!
FB900, FB400 black body type product pictures. The FB Series is a high performance process controller with a more advanced Brilliant II PID, autotuning, advanced tuning, selectable sampling cycle time of 0.05/0.1/0.25 second and 0.1 % of accuracy in short depth housing.
  • Panel space saving: 60mm depth
  • Numerous inputs and outputs
  • Multi-memory area (Up to 8 sets)
  • Selectable PID control algorithm
  • Easy-setup and Data Monitoring via a standard data port
  • Inter-controller Communication
  • Modbus support

FB900, FB400 Special Features --> Click here !


Specification --> FB_02E.pdf (1.93MB)
Instruction manual --> IMR01W03E2.pdf (13.4MB)
Communication Instruction Manual --> IMR01W04E2.pdf (2.26MB)
Specification files are in Adobe's Acrobat PDF file (version 4.0) format. Acrobat Reader is required.

FB900, FB400 white body type product pictures.

HA401, HA901
This digital controller provides accuracy of 0.1% of displayed value and a sampling rate of 0.025 second.
The difference between the HA401/901 and theHA400/900 is autotuning algorithm.

  • High speed sampling : 0.025 sec.
  • Single loop / Dual loop / Cascade control
  • Multi-memory area (Up to 16 sets)
  • Bar-graph display
  • Dual digital communication ports
  • Modbus, Profibus, and DeviceNet support
HA901, HA401 black type
HA901, HA401 white body type
<Autotuning function>
Autotuning a process with fast response may produce PID autotune constants that would fluctuate the process excessively.
In the HA401/901, PID autotune constants are settable in 1/100 units for accurate control. The HA401/901 are suited for applications that reach the set point in five (5) minutes or more. If the process is less than five minutes to the set point, RKC recommends adjusting the AT differential gap to less than 10 seconds (default value in the HA401/901) prior to autotuning. If the process is less than 30 seconds to the set point, the HA400/900 is recommended.

RKC IR for HA Series --> Click here !

"RKC IR" is a software utilizing PDA infrared radiation port (IrDA) to set various settings of controller.

Specification --> HA_01E.pdf (533KB)
Instruction manual --> IMR01N01E5.pdf (430KB)
Operation Manual --> IMR01N02E6.pdf (5.75MB)
Communication Instruction Manual --> IMR01N03E5.pdf (3.89MB)
Specification files are in Adobe's Acrobat PDF file (version 4.0) format.
Acrobat Reader is required.


HA900, HA400
HA900, HA400 black body type The HA Series features a high speed sampling rate of 0.025 seconds, or 40 times per second, greatly suppressing overshoot.
  • High speed sampling : 0.025 sec.
  • Single loop / Dual loop / Cascade control
  • Multi-memory area (Up to 16 sets)
  • Bar-graph display
  • Dual digital communication ports
  • Modbus, Profibus, and DeviceNet support

HA900, HA400 Special Features --> Click here !

RKC IR for HA Series --> Click here !

"RKC IR" is a software utilizing PDA infrared radiation port (IrDA) to set various settings of controller.

HA900, HA400 white body type
Specification --> HA_01E.pdf (533KB)
Instruction manual --> IMR01N01E5.pdf (430KB)
Operation Manual --> IMR01N02E6.pdf (5.75MB)
Communication Instruction Manual --> IMR01N03E5.pdf (3.89MB)
Specification files are in Adobe's Acrobat PDF file (version 4.0) format.
Acrobat Reader is required.


REX-F9000
The REX-F9000 is a high resolution temperature controller that has been specifically designed for applications where precise process control with three decimal places (0.001°C) is required.
  • High accuracy : +/- 0.05°C
  • High resolution : 0.001°C
  • Power feed forward function
  • Bar-graph display
  • Use of Brilliant PID and enhanced autotuning to optimize PID tuning.
REX-F9000 temperature controller
Specification --> F9000_01E.pdf (69.2KB)
Instruction manual --> IM9000F01E4.pdf (824KB)
Communication Instruction Manual --> IM9000F02E3.pdf (1.59MB)
Specification files are in Adobe's Acrobat PDF file (version 4.0) format.
Acrobat Reader is required.


REX-F900, F700, F400
REX-F series temperature controllers The NEW F series direct digital controllers have been designed with the concept of "Excellent control with user-friendly operation."
  • Use of Brilliant PID and enhanced autotuning to optimize PID tuning.
  • Bar-graph display
  • Programmable input
  • UL recognized [File No.E82331] (Except REX-F700 and triac trigger output type.)
  • CSA certified [File No.LR46566] (Except REX-F700)
Specification --> F_01E.pdf (137KB)
Operation Manual (F400, F900) --> IM900F21E3.pdf (2.33MB)
Operation Manual (F700) --> IM700F02E1.pdf (1.29MB)
These files are in Adobe's Acrobat PDF file (version 4.0) format.
Acrobat Reader is required.


REX-D900, D400, D100
New easy-to-use controller featuring fuzzy logic with universal inputs and outputs.
  • New fuzzy logic algorithm eliminates overshoot and undershoot.
  • Universal inputs and outputs. (REX-D100 is universal only for inputs.)
  • UL recognized [File No.E142760]
  • CSA certified [File No.LR46566]
Specification --> D_01E.pdf (79.6KB)
Operation Manual --> IMDRE01E4.pdf (2.29MB)
Communication Instruction Manual --> IMDRE03_E3.pdf (1.16MB)
These files are in Adobe's Acrobat PDF file (version 4.0) format.
Acrobat Reader is required.


Our process and temperature control technology is widely used in industry.

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RKC Instrument. USA Office