Laboratory thermostat Universa U 635 P

digitalelectronicheating

Product summary
The Universa U 635 P is a bath circulation thermostat from the LAUDA Universa product line for industrial tempering tasks. Supplied with bath cover and pump connections, it features a front drain valve behind the ventilation grille for safe and easy replacement of the temperature control fluid. Modular design with interchangeable control head and heating/cooling base, integrated web server and WLAN enable flexible on-site and remote operation.

Key features

• Bath circulation thermostat with advanced electronics for precise temperature control (stability 0.02 ± K).
• Dedicated Tmax button for fast access to overtemperature protection during commissioning.
• Energy-efficient refrigeration: capillary tube technology with speed-controlled inverter compressor and speed-controlled fan.
• Integrated programmer, calibration options and weekly scheduler for precise process control.
• Integrated WLAN, Ethernet and USB plus optional interface modules for flexible networking; secure remote access via LAUDA Command app and LAUDA.LIVE (PKI & 2-factor authentication).
• Future-proof modularity: interchangeable control head and heating/cooling base.
• Efficient vario pump with six adjustable performance levels; flexible flow distribution for internal and external circulation (max. flow 22 L/min).
• Adaptive bath-edge ventilation to prevent icing/condensation and protect electronics.
• Comprehensive safety: float low-level protection, adjustable overtemperature protection with acoustic alarm, smart tempering-fluid management.
• 3.5" colour TFT with progression graph, clear menu navigation and soft keys; front control for pump output adjustment during operation.
• Use of environmentally friendly refrigerants.

Working range

• Min. working temperature: -35 °C
• Max. working temperature: 200 °C
• Temperature stability: 0.02 ± K

Technical data (according to DIN 12876)

• Working temperature range: -35 ... 200 °C
• Operating / ambient temperature range: -35 ... 200 °C / 5 ... 40 °C
• Temperature stability: 0.02 ± K
• Current consumption: 12 A
• Bath opening (WxD): 130 x 150 mm
• Bath volume (min / max): 3.2 / 5.7 L
• Max. discharge pressure: 0.6 bar
• Max. pump flow (pressure): 22 L/min
• In / outlet connection thread (outside): M16 x 1
• Dimensions (WxDxH): 290 x 480 x 646 mm
• Weight: 34 kg
• Power supply: 220-240 V; 50/60 Hz
• Power plug: Power cord with angled plug (CEE7/7)

Cooling capacity (selected values)
200 °C | Pump level 6 | Thermal oil | –
100 °C | Pump level 6 | Thermal oil | –
20 °C | Pump level 6 | Ethanol | 0.5 kW (50 Hz) | 0.5 kW (60 Hz)
10 °C | Pump level 6 | Ethanol | 0.5 kW | 0.5 kW
0 °C | Pump level 6 | Ethanol | 0.47 kW | 0.47 kW
-10 °C | Pump level 6 | Ethanol | 0.3 kW | 0.3 kW
-20 °C | Pump level 3 | Ethanol | 0.17 kW | 0.17 kW
-30 °C | Pump level 3 | Ethanol | 0.06 kW | 0.06 kW
-35 °C | Pump level 3 | Ethanol | 0.02 kW | 0.02 kW

Datasheet / Downloads
Data sheet Universa U 635 P available as PDF (datasheet included on product page).

Technical specifications

• Product line: Universa
• Model / Part no.: Universa U 635 P / L003900
• Working temperature range: -35 ... 200 °C
• Temperature stability: 0.02 ± K
• Bath opening (WxD): 130 x 150 mm
• Bath volume (min / max): 3.2 / 5.7 L
• Pump: Vario pump, 6 levels, max. 22 L/min
• Max. discharge pressure: 0.6 bar
• Connection thread (in/out): M16 x 1 (outside)
• Dimensions (WxDxH): 290 x 480 x 646 mm
• Weight: 34 kg
• Power supply / plug: 220-240 V; 50/60 Hz – Power cord with angled plug (CEE7/7)
• Connectivity: Integrated WLAN, Ethernet, USB, optional interface modules; web server; LAUDA Command app & LAUDA.LIVE compatibility
• Safety features: Low-level float protection, adjustable overtemperature protection with acoustic alarm, adaptive bath-edge ventilation