Memmert CTC256 Environmental test chambers

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 Class A in 4-wire-circuit, mutually monitoring and taking over the performance at the same temperature value
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 % rh with digital display of relative humidity - resolution of display 0.5 %, setting accuracy 1 %
Humidification     By hot steam generator. Humidity supply with distilled water from 2 x 10 l tank on telescopic slide integrated in chamber, with automatic change-over.
Dehumidification     2 x 10 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 min. to 999 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 %
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

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