Unistat 912w

Unistat 912w

Dynamic temperature control system / circulation thermostat

Model: Unistat 912w Group: 4 Order No.: 1055.0003.01 E-class: 32-09-01-17
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Performance Characteristics

The Unistat range inspires with unique thermodynamic properties and a range of functions to meet the highest demands. Unistat technology guarantees precise, reproducible temperature control results, the shortest possible heating and cooling times and large temperature ranges without the need for fluid change. All Unistats are fitted with the innovative Pilot ONE controller with a 5.7“ touchscreen colour display and easy menu navigation. All important parameters can be seen at a glance and temperature curves are displayed in graphic real time. Unistats are equipped with the most up-to-date pump technology for optimal heat transfer. The pump self regulates to ensure the best possible circulation and flow and delicate glass reactors are protected from breakage by the pumps soft start-up feature. Unistat technology impresses as a result of economic operation with reduced operating costs and efficient energy management. Because Unistats are hydraulically sealed, the service life of the temperature control fluid is dramatically increased by preventing oil loss through vapours and oxidation, further saving resources. Unistats are fitted with extensive safety equipment and are therefore suitable for unsupervised continuous operation. Relevant operating conditions are constantly monitored and the system is switched off if necessary or with the process safety feature the emergency cooling circuit is activated.

Functions overview

  • Precise and reproducible temperature control results
  • Fastest heating and cooling rates
  • Wide temperature ranges with no fluid change
  • Pilot ONE controller with 5.7“ touchscreen and comfortable menu navigation
  • Adaptive temperature control, self-optimising
  • Efficient circulation pump
  • 2 x USB (Host and Device), Ethernet and RS232 interfaces
  • Efficient operation saves working time and operating costs
  • Proven functionality for the process industry
  • E-grade "Professional" included

Product impressions


The new multi-touch controller Pilot ONE offers a brilliant 5.7" touchscreen with graphic functions and a comfortable navigation menu. All important operating parameters and temperature values are neatly displayed on the touchscreen. Thanks to the new favourites menu, the one-click operation and the integrated technical glossary the operation is very easy, just like on a smartphone. Integrated USB and Ethernet ports allows connection to a PC or network, e.g. for remote control or data transmission.

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Temperature range -90...250 °C
Temperature stability ±0,01 K
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) 630 x 704 x 1565 mm
Weight, net 328 kg

Heating capacity 6 kW
Cooling capacity
250 7
200 7
100 7
0 7
-20 7
-40 6
-60 3,5
-80 0,9
-90 0,2



Refrigeration machine water-cooled, CFC- and HCFC-free
Refrigerant 1st stage R452A (A1, H280)
Refrigerant quantity 1st stage 2 kg
Refrigerant 2nd stage R23 (A1, H280)
Refrigerant quantity 2nd stage 1,1 kg

Delivery capacity pressure pump max. 110 l/min; 1,5 bar
Pump connection M30x1,5 AG male
Max. permissible viscosity 50 mm²/s
Pump speed adjustable Yes
Pump type magnetgekuppelt, Edelstahl

External sensor connection Pt100
Control input ECS ONE
Control output (potential-free contact) POKO ONE
Interface digital Ethernet, USB (Host u. Device), RS232

Permissible ambient temperature 5...40 °C
Sound pressure level 65 dB(A)
Filling volume min. 3,9 l
Expansion volume 6,5 Liter
Cooling water connection G1/2 male
Cooling water consumption at 15°C, flow 0°C 516 l/h
Cooling water differential pressure min. 1 bar
Cooling water pressure max. 6 bar
Power supply 400V 3~ 50Hz
Current consumption max. 20 A
Fuse 3x20 A

Please take further technical information as well as information about the scope of delivery, accessories and peripheral devices from the PDF data sheet. In cases of doubt the details given in there apply. If nothing to the contrary is quoted then the performance data referred is at an ambient temperature of 20°C.

Please observe the notes on installation and/or the space requirements of our products.

The following voltage and frequency tolerances apply based on EN60034-1:
Voltage +/- 5% for a frequency tolerance at the same time of +/- 2%

Examples to illustrate this: Not permissible, for example. is -5% on the voltage and +2% on the frequency. Permissible, on the other hand, are tolerances of -5% on the voltage and -2% on the frequency.

We reserve the right to make technical changes and correct errors. Illustrations can deviate from the original.


Control panel extension cable for Pilot ONE

Hose for cooling water PZ-90-1-1/2"

Hose for cooling water PZ-90-1,5-1/2"

Hose for cooling water PZ-90-2-1/2"

Hose connection 1/2" female to 3/8"

Adapter M38x1,5 m - M30x1,5 f

Adapter M24x1,5 m - M30x1,5 f

90° Adaptor M30x1,5 female - R1/2 male

External pressure sensor M30x1,5

Wall bracket Pilot ONE

Table stand Pilot ONE

Hose K-260-1-M30x1,5

Hose K-260-2-M30x1,5

Hose K-260-3-M30x1,5

External calibration bath Unical 700

VPC Bypass M30x1,5

Temperature sensor PT100, open, Ø 8 mm, 170 mm

Control cable Unipump/ Unistat (3m)

Factory calibration certificate – temperature stability to DIN 12876

Heat transfer fluid M90.055/170.02

Heat transfer fluid M90.055/170.02

Heat transfer fluid M80.100/250.03

Heat transfer fluid M80.100/250.03

Extension cable for temperature sensor

Bath cover PTFE Unical 700, CAL 1-4, Unical 1

Bath cover PE Unical 700, CAL 1-4, Unical 1

Hose MT-350-1,5-M30x1,5

Adapter M30x1,5 f - G1/2 m

Adapter M30x1,5 f - G1/2 f

Securing nut M30x1,5

Testing protocol FAT (Final Acceptance Test

Calibration bend M30x1,5

Temperature sensor PT100, closed, Ø 8 mm, 400 mm

Temperature sensor PT100, closed, Ø 6 mm, 200 mm

Temperature sensor PT100, closed, Ø 6 mm, 180 mm

Float switch in sight glass for safety

Heat transfer fluid M80.055.03

Heat transfer fluid M80.055.03

Hose MT-350-1-M30x1,5

Hose MT-350-2-M30x1,5

Hose MT-350-3-M30x1,5

Adapter M30x1,5 f - G3/8 m

Ball valve, M30x1,5

Adapter M30x1,5 f - G3/4 f

Adapter M30x1,5 f - G1 f

Welding end M30x1,5

90° Adaptor M30x1,5 f - M30x1,5 m

Adapter M30x1,5 f - 3/4NPT m

Heat transfer fluid DW-Therm M90.200.02

Hose MT-350-0,5-M30x1,5

Temperature sensor PT100, M30x1.5, for fluid outlet or return

Temperature sensor PT100, M30x1.5, for fluid outlet or return, double

Factory calibration certificate – absolute accuracy

Quick-disconnect adaptor M30x1,5

Quick-disconnect coupler M30x1,5

Connection for pressure relief device

E-grade Explore

Profibus Gateway 3E (external, for Pilot ONE)

E-grade OPC-UA

Pilot Remote-Software

Pilot Remote-Software, ATEX version

POKO/ECS interface for units with Pilot ONE

Mounting bracket for wall mounting of Pilot ONE

Manually adjustable bypass M30x1,5 with connection for manometer

Touchpen for Pilot ONE

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Quotation request & Warranty

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