Climatic Test Chamber CTC256

Simulate the perfect atmosphere for climate and temperature tests, specifically in accordance with DIN EN 60068-2-1, 2-2 and 2-3. Provide unlimited flexibility for controlled material and function tests as well as ageing tests.

Ventilation and Control:

• high-performance air fan in working chamber
• depending on operation status automatically variable fan speed with manual adjustment from 10 % to 100 %
• adaptive, fuzzy-supported multifunctional digital microprocessor PID-controller
• autodiagnostic system with fault indication on temperature and humidity control
• 2 x Class A, 4-wire circuit, Pt100 sensors, mutually monitoring and maintaining performance at the same temperature value
• digital 7-day-programme-timer with real time clock, precise minute setting
• integral timer for heating profiles of up to 40 ramps, each segment adjustable from 1 min. up to 999 hours
• digital display (LED) of all set parameters, such as temperature, weekdays, time, humidity and set-up values – language to be chosen in setup
• digital display of set values (resolution: 0.1 °C below 99.9 °C, 0.5 °C above 100 °C) and actual values (resolution: 0.1 °C) of temperature (LED)
• long-term documenting (ring store) of all relevant data, GLP-conforming as data logger – 1024 kB
• programme stored on power failure
• parallel printer interface (incl. real-time clock with date function) for all PCL3-compatible ink-jet printers for GLP-conforming documentation
• USB interface including Memmert “Celsius” software for programming and documentation
• chip card control incl. one MEMoryCard XL with 32 kB (up to 40 ramps)
• incl. works calibration certificate for -20 °C and 160 °C

Heating concept:

• high-performance ring heaters with optimised air circulation
• door heating to avoid condensate

Cooling Concept:

• twin compressor
• speed adjustable condenser fan
• refrigerant R449A

Multiple Overtemperature Protection:

• with audible and visual alarm in case of over-/undertemperature and over-/under-humidity, open door and empty water tank
• independently working, digitally adjustable electronic overtemperature controller, TWW protection class 3.3
• additional adjustable Auto-Safety-Function “ASF” for over- and undertemperature automatically following the set value at a preset tolerance range
• mechanical temperature limiter TB class 1 switching the heating off at approx.10 °C above max. oven temperature

Standards for CTC additionally:

• Electronically controlled active humidification and dehumidification from 10 % to 98 % rh with digital display of the relative humidity, display resolution 0.5 %, setting accuracy 1 %
• incl. works calibration certificate for 30 °C at 60 % rh
• Humidity supply with distilled water from 2 x 10 l tanks on integrated telescopic slide, with automatic water tank change-over
• 2 x 10 l tanks acting as condensate collectors, on telescopic slide mounts