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Air Temperature Control Unit-9

The ATCU-9 accommodates enclosure:
Area: Up to 11 m²
Volume: Up to 22 m³

ATCU-9 All

Ultra-Precision Temperature Control
For Precision Optics and Metrology Applications.


• . We guarantee that a Præcis air temperature
    control system will maintain the temperature
    at the Critical Point to 0.01 °C p-v (± 0.005)..

•  Præcis systems provide long-term temperature
    stability and do not require operator
    intervention. The ATCU screen displays the
    temperature in real time, and if the temperature
    should go out of range, the ATCU will sound an

•  If your Præcis Environment system should need
    adjustment, Præcis provides remote tuning from
    its headquarters.

  ATCU-9 maximum enclosure size.

ATCU-9 maximum enclosure size.

ATCU-9 Specifications



Stability at Critical Point: ± 0.003 °C.
Set-point: Troom ± 2 °C.
Set-point Resolution: 0.001 °C.
Operating Conditions: 18 - 22 °C.
Air Flow Rate: 10 - 54 m³/min.
Sound Level (dBA): 65 dba.
Dual Settings: For different environment. conditions, such as winter/summer.


Voltage:  230 ± 10% V.
Phase: 1 or 3.
Frequency:  50 or 60 Hz.
Nominal Current - Cooling: 15.5 A.
Nominal Power Consumption: 3.0 kW.
Breaker/Fuse Size: 30 A.
Supply Power Wire Size: 12 AWG.


Refrigerant Type: R-407c.
Refrigerant Charge (kg): 1.5 kg.


Enclosure area:  Up to 11 m².
Enclosure volumeUp to 22 m³.


Height:  1.97 m.   
Height without vent:  
1.82 m.
Depth:  0.78 m.
Width:  1.06 m.
Width without handles:  0.96 m.
Weight:  283 kg.
Air damping:  Automatic.
Condensate:  Pumps to remote location.
HEPA Filtration:  Optional.
HEPA Filtration: Optional.


Computer Screen:  10.4-in touch-screen.
Data storage:  Thermograph/PC.
Data recording format:  Excel, text. 
Channels:  Up to 8 channels of data.
Software:  Robust and user-friendly.
High/Low temperature alarm:  Yes.
Selectable sampling intervals:  Yes.
Moving average filtering:  Yes.
Adjustments:  Programmable set points.
Remote tuning from Præcis:  Yes.
User manuals:  English.