Climate chamber MKF 240

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Product description
The MKF 240 CO₂ dynamic climate chamber is a combined temperature and humidity test chamber designed for rapid temperature changes and precise humidity control. It uses natural CO₂ (R744) refrigeration and is built to deliver reproducible, standards-compatible test cycles for industrial testing and R&D applications.

Benefits

• High dynamic temperature performance with integrated humidity control for combined climate testing
• Compact 228 L interior suited to laboratory and production test benches
• Standard connectivity and data logging for process integration and traceability
• Clear operator interface and adjustable terminal for ergonomic use

Important characteristics

• Temperature range: -50 °C to +180 °C
• Humidity range: 10 % to 98 % RH (humidity operation 10...95 °C)
• Humidity regulation: capacitive sensor with steam humidification
• APT.line™ preheating chamber technology
• Cooling with natural CO₂ (R744)
• Intuitive touchscreen controller with time-segment and real-time programming
• Ergonomically adjustable operating terminal and signal triangle with illuminated status display
• Internal data logger; open-format export via USB; Ethernet and USB interfaces
• Programmable condensation protection and troubleshooting system with visual and acoustic alarms
• Stainless-steel interior, heated viewing window with LED lighting, 1 stainless steel rack (std.)
• 1 access port with silicone plug 50 mm (left)
• Class 2 adjustable temperature safety device (DIN 12880) with visual alarm
• Integrated 20 L water-storage tank; door heating; adjustable ramp function; 4 potential-free relay contacts

Technical data (selected)
Article / Designation / Option model
Article Number: 9020-0514 / 9020-0516
Designation: MKF240CO2-400V / MKF240CO2-480V
Option model: Standard / Standard

Performance Data Temperature
Temperature range: -50...180 °C*
Temperature uniformity dependent on set value: 0.1...1.2 ± K
Temperature fluctuation dependent on set value: 0.1...0.4 ± K
Average heating-up rate (IEC 60068-3-5 between -40 °C and 180 °C): 5.5 K/min
Average cooling down rate (IEC 60068-3-5 between 180 °C and -40 °C): 5.7 K/min
Cooling down time from 180 °C to -40 °C: 60 min

Performance Data Climate
Temperature range with humidity: 10...95 °C
Humidity range: 10...98 % RH
Temperature fluctuation with humidity dependent on set value: 0.1...1 ± K
Humidity fluctuation with humidity dependent on set value: ≤2 ± % r.F.
Max. heat compensation at 25 °C and 90 % RH: 900 W

Electrical data
Rated Voltage: 400 V (article 9020-0514) / 480 V (article 9020-0516)
Power frequency: 50 Hz (400 V) / 60 Hz (480 V)
Nominal power: 6.8 kW
Unit fuse: 16.0 A
Phase (Nominal voltage): 3~/N/PE

Dimensions and weights
Interior volume: 228 L
Net weight (empty): 327 kg (400 V) / 335 kg (480 V)
Load per rack: 30 kg
Permitted load: 70 kg
Wall clearance back: 300 mm
Wall clearance sidewise: 200 mm

Housing / Internal dimensions
Width (net): 1,115 mm
Height (net): 1,713 mm
Depth (net): 925 mm
Interior width: 735 mm
Interior height: 700 mm
Interior depth: 443 mm
Unit doors: 1

Environment-specific data
Sound-pressure level: 60 dB(A)
Energy consumption at 25 °C and 60 % RH: 1,400 Wh/h

Fixtures
Number of shelves (std./max.): 1/6