CTC256 / Climatic Test Chamber 256


CTC256 / Climatic Test Chamber 256

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Environmental test chambers CTC256

Standard delivery Environmental test chambers

On this page. you can find all the essential technical data on the Memmert environmental chamber CTC/TTC for climate testing and temperature testing. Our customer relations team will be pleased to help if you want further information. If you should require a customised special solution. please contact our technical specialists at myAtmoSAFE@memmert.com.


Temperature range without humidity from -42'C up to +190'C
Temperature range with humidity from +10'C up to +95'C
Temperature distribution (spatial) +/- 0.5 up to 2K
Temperature 2 Pt100 sensors DIN Class A in 4-wire-circuit for mutual monitoring. taking over functions in case of an error
Display resolution of display for setpoint values 0.1'C up to 99.9'C. 0.5'C from 100'C and for actual values 0.1'C (LED)


Humidification humidification by hot steam generator
Humidity control active humidifying and de-humidifying adjustable from 10-98&nbsp.%&nbsp.rh with digital display of relative humidity - resolution of display 0.5&nbsp.%. setting accuracy 1&nbsp.%
Humidification By hot steam generator. Humidity supply with distilled water from 2 x 10&nbsp.l tank on telescopic slide integrated in chamber. with automatic change-over.
Dehumidification 2 x 10&nbsp.l tanks as condensate collector

Control technology

Controller Electronic microprocessor temperature controller with auto-diagnostic system
Set-up Display digital display of all set parameters. such as temperature. weekdays. time. humidity. fan speed. programme status and set-up values - language to be chosen via set-up
Timer integrated timer for tempering profiles of up to 40 ramps each. each segment adjustable from 1&nbsp.min. to 999&nbsp.hrs.
Calibration three freely selectable temperature values


Fan high-performance air fan in working chamber
Fan control depending on operation status automatic adaption of fan speed resp. manual adjustment from 10 to 100&nbsp.%


Interface USB USB-interface incl. Memmert software Celsius for programming and documentation
Interface Printer parallel printer interface (incl. real time clock with date function) for all PCL3-compatible ink jet printers for GLP-conforming documentation
Documentation integrated ring memory as data logger for GLP-conforming long-term documentation of all relevant parameters - 1024 kB
Documentation programme stored in case of power failure
Programming chip-card control incl. 1 MEMoryCard XL with 32 kB storage capacity (max. 40 ramps)


Temperature control mechanical temperature limiter TB. protection class 1 according to DIN 12880 to switch off the heating approx. 10'C above nominal temperature
Temperature control over- and undertemperature monitor TWW. protection class 3.3 or adjustable temperature limiter TWB. protection class 2. adjustable at controller
AutoSAFETY additionally integrated over- and undertemperature protection ASF . automatically following the setpoint value at a preset tolerance range. alarm in case of over- or undertemperature. heating is switched off in case of overtemperature. compressor in case of undertemperature
Autodiagnostic system integral fault diagnostics for temperature and humidity control
Alarm with visual and acoustic alarm in case of over-/under temperature and underhumidity. open door and empty water tank

Heating concept

Ring heater high-performance ring heaters with optimised air circulation
Door door heating to avoid condensation
Cooling twin compressor. refrigerant R449A

Standard equipment

Internals 1 stainless steel grid(s). electropolished
Works calibration certificate standard values +10 'C and +37 'C. 60 % rh at +30 'C
Door fully insulated stainless steel door with double-locking and 4-point adjustment. heated
Interior easy-to-clean stainless steel interior. materil 1.4301 (ASTM 304). hermetically welded

Stainless steel interior

Volume 256&nbsp.l
Dimensions w(A) x h(B) x d(C): 640 x 670 x 597&nbsp.mm
Max. number of internals 6
Max. loading per internal 25 kg

Textured stainless steel casing

Dimensions w(D) x h(E) x d(F): 898 x 1730 x 1100&nbsp.mm (d +50mm door handle)
Installation on lockable castors
Housing rear zinc-plated steel

Electrical data

Electrical load 400&nbsp.V. 3 phases. 50/60&nbsp.Hz / approx. 7000&nbsp.W

Ambient conditions

Set Up The distance between the test chamber and the walls/ceiling must be at least 25 cm.
Ambient temperature 16
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