The original, reworked! The latest Unistat generation marks a new era in high-precision temperature management. The proven concept has been enhanced with cutting-edge technology to further improve temperature control performance. Unistat process thermostats impress with superior thermodynamic qualities and a wide range of functions for the most demanding applications.
Unistats ensure highly precise and consistent temperature control results, short heating and cooling periods, and wide temperature ranges without irritating fluid changes. To ensure efficient heat transfer, the gadgets are equipped with a cutting-edge, seal-free circulation pump with magnetic coupling. Improved venting and degassing features ensure the system is running quickly and smoothly.
The unique Pilot ONE controller controls the system, featuring a 5.7" touchscreen color display. Important parameters are obvious at first glance, and temperature curves are displayed visually in real time. For extended networking, the "Com.G@te DIGITAL" with the most important digital interfaces comes as standard. Analog interfaces can be adapted using the optional "Com.G@te PLUS. "
Unistat technology is also economically advantageous, with low operating costs and effective energy management. Another advantage is the longer service life of the heat transfer fluid. Hydraulically sealed systems avoid the development of oil vapors and oxidation. Unistats offer numerous safety features and are well suited for unsupervised continuous operation.
Relevant operating states are constantly checked; if necessary, the system is shut down or emergency circuits are activated. All safety circuits are intended for Performance Level C or higher (DIN EN ISO 13849-1).
The "GL" (Green Line) model versions use the natural refrigerant carbon dioxide (CO2) and are, hence, a completely ecologically beneficial alternative to devices using synthetic refrigerants. Carbon dioxide (also known as R744) is a naturally occurring component of air that has been used in refrigeration since the nineteenth century. CO2 has no ozone depletion potential (ODP = 0), a minor global warming potential (GWP = 1), and is not combustible, poisonous, or chemically reactive.

Image Credit: Peter Huber Kältemaschinenbau SE
Functions Overview
- Environmentally friendly with natural refrigerant CO2
- The Pilot ONE controller features a 5.7" color touchscreen and menu navigation in 13 languages
- Tempering findings are highly accurate and reproducible
- Standard with E-grade "Professional"
- Short heating and cooling times
- Adaptive temperature control, self-optimization
- All safety circuits Performance Level C or higher (DIN EN ISO 13849-1)
- Wide temperature ranges with no fluid changes
- Strong circulation pump without a seal that has a magnetic coupling
- Reduced filling volume allows for faster tempering
Controller

Image Credit: Peter Huber Kältemaschinenbau SE
The new multi-touch controller Pilot ONE features a stunning 5.7" touchscreen with graphic functions and easy menu navigation. The favorites menu, one-click operation, and technical glossary ensure that important information and settings are always at the fingertips. The integrated USB and Ethernet ports allow connections to a PC or network, such as remote control and data recording.
General and Temperature Control
Source: Peter Huber Kältemaschinenbau SE
. |
. |
Temperature range |
-50-200 °C |
Temperature stability |
±0.01 |
Display resolution |
0.01 K |
Alarm message |
optic, acoustic, relay |
Controller |
Pilot ONE |
Safety class |
III / FL |
Protection class |
IP20 |
Dimensions (W x D x H) |
730 x 804 x 1738 mm |
Heating/Cooling Capacity
Source: Peter Huber Kältemaschinenbau SE
. |
. |
Heating capacity |
6 kW |
Cooling capacity |
200 |
100 |
20 |
0 |
-20 |
-40 |
-50 |
°C |
12 |
12 |
12 |
10 |
7 |
2.5 |
1.5 |
kW |
|
Refrigeration machine |
water-cooled, natural refrigerant |
Refrigerant 1st stage |
R-744 (A1, H280) |
Circulation Pump
Source: Peter Huber Kältemaschinenbau SE
. |
. |
Delivery capacity pressure pump max. |
150 l/min; 2.5 bar |
Pump connection |
M38x1.5 AG male |
Max. permissible viscosity |
100 mm²/s |
Pump speed adjustable |
Yes |
Pump type |
magnetically coupled, stainless steel |
Pump characteristics |
Pressure pump, variable speed, magnetically coupled |
Connections
Source: Peter Huber Kältemaschinenbau SE
. |
. |
External sensor connection |
Pt100 |
Control input |
ECS ONE |
Control output (potential-free contact) |
POKO ONE |
Digital interface |
Ethernet, USB (Host and Device), RS232 |
Operating Data
Source: Peter Huber Kältemaschinenbau SE
. |
. |
Permissible ambient temperature |
5-40 °C |
Filling volume min. |
8.9 l |
Expansion volume |
19.9 l |
Cooling water connection |
G3/4 AG |
Cooling water differential pressure min. |
1 bar |
Cooling water pressure max. |
6 bar |
Power supply |
400 V 3 ~ 50 Hz |