Laboratory thermostat Universa U 1645 M

benchtopdigitalelectronic

Product description
The Universa U 1645 M bath circulation thermostat is supplied with a bath cover and pump connections as standard. A front drain valve behind the ventilation grid enables safe and simple replacement of the temperature control fluid.

Features

• Bath circulation thermostat with advanced electronics for high control precision.
• Dedicated Tmax button for quick access to overtemperature protection during commissioning.
• Highly efficient refrigeration: speed-controlled inverter compressor, electronic expansion valves and speed-controlled fans for improved energy efficiency, longer service life, dynamic approach to setpoint and quieter operation.
• Extensive functionality: programmer, safe mode, calibration options, controller self-adaptation and weekly planner for precise process control.
• Integrated WLAN for wireless connection to PC, tablet and smartphone; built-in web server for remote control via app or browser with PKI and 2-factor authentication.
• Modular design with interchangeable control head and heating/cooling base for future adaptability.
• LAUDA Varioflex pressure-suction pump: eight selectable performance levels and adjustable flow distribution for internal/external circulation.
• Use of natural refrigerants for sustainable cooling.
• Comprehensive safety: over- and under-level protection, adjustable overtemperature protection with acoustic alarm, automatic start-up diagnostics, and smart tempering-media management.
• Intuitive operation: 5" colour TFT display with progression graph, menu navigation in six languages, cursor and soft keys; accessible front switch for pump output adjustment during operation.
• Adaptive bath-edge ventilation (patent pending) to prevent icing/condensation and protect electronics.
• Extensive interfaces: standard Ethernet, USB, external Pt100 interface and eleven optional interface modules; Wi‑Fi use limited to certified countries/regions (e.g. USA, Canada, EU incl. UK and Switzerland, India).

Working range

• Min. working temperature: -45 °C
• Max. working temperature: 200 °C
• Temperature stability: 0.01 ± K

Cooling capacity (excerpt)
Temperature | Pump level | Tempering medium | Cooling capacity 50 Hz | Cooling capacity 60 Hz
200 °C | 8 | Thermal oil | 1.6 kW | 1.6 kW
100 °C | 8 | Thermal oil | 1.6 kW | 1.6 kW
20 °C | 8 | Ethanol | 1.6 kW | 1.6 kW
10 °C | 8 | Ethanol | 1.45 kW | 1.45 kW
0 °C | 8 | Ethanol | 1.2 kW | 1.2 kW
-10 °C | 8 | Ethanol | 0.86 kW | 0.86 kW
-20 °C | 4 | Ethanol | 0.58 kW | 0.58 kW
-30 °C | 4 | Ethanol | 0.35 kW | 0.35 kW
-40 °C | 4 | Ethanol | 0.15 kW | 0.15 kW
-45 °C | 4 | Ethanol | 0.07 kW | 0.07 kW


Technical specifications

• Working temperature range: -45 ... 200 °C
• Ambient temperature range: 5 ... 40 °C
• Temperature stability: 0.01 ± K
• Max. power consumption: 3.8 kW
• Current consumption: 16 A
• Bath opening (WxD): 200 x 300 mm
• Min. / max. bath volume: 10.5 / 16.5 L
• Max. discharge pressure: 0.7 bar
• Pump suction max.: 0.4 bar
• Max. pump flow: 25 L/min
• In / Outlet connection thread (outside): M16 x 1
• In / Outlet Ø olives: 13 mm
• Dimensions (WxDxH): 310 x 610 x 757 mm
• Weight: 49 kg
• Power supply: 200-240 V, 50/60 Hz
• Power plug: Power cord with angled plug (CEE7/7) (variant depending on country)