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Environmental Test Chambers

Climatic Test Chamber 256L

Product Code: MMTCTC256

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Overview

Climatic Test Chamber 256L


Rapid and energy-saving temperature changes in the environmental chamber

Rapid, precise and energy-saving temperature changes in the range from -42 ºC to +190 ºC, along with fast humidity recovery times, make the CTC climatic test chamber with humidity unit a perfect duo for controlled material testing, function tests, ageing tests or climate tests on composites, concrete, plastics or electronic components in material technology, the automotive and aerospace industries, and electronics.

  • One model size (256 litres volume)
  • State-of-the-art control technology
  • electronically controlled active humidification and dehumidification from 10 % to 98 % rh
  • Specifically suited for tests in accordance with IEC 60068
  • High-tech insulation system for permanent insulation capacity and energy efficiency
  • Temperature change rate in heating operation according to IEC 60068-3-5: 10 K/min (-40 °C to +180 °C; measured at an ambient temperature of 22 °C)
  • Temperature change rate in cooling operation according to IEC 60068-3-5: 3 K/min (from +180 °C to -40 °C; measured at an ambient temperature of 22 °C)
  • Refrigerant R449A

Perfect environmental simulation for climate test and temperature test

The climatic test chamber CTC is, with a rated power of 7000 Watts, extremely powerful due to the optimally coordinated heating and cooling technology. Largest possible energy efficiency and reduction in noise had been two criteria for the Memmert engineers to fulfill. With a chamber volume of 256 litres, they provide plenty of space to offer, yet have a low floor space requirement because of their narrow and compact construction. In addition, the appliances can be conveniently moved on castors through any standard laboratory door.

A Memmert environmental chamber CTC offers unique advantages

  • Heating concept specifically adapted for a precise and homogenous temperature control
  • Alarm functions, three-fold overtemperature protection and simultaneous display of all parameters provide safety for samples
  • A wide range of options for programming and documentation using interfaces, Celsius software, integrated log memory and chip cards (features dependent on the controller class)
  • Three years guarantee worldwide
Technical Specifications
Supplier Memmert

CTC256

Standard delivery Environmental test chambers

On this page, you can find all the essential technical data on the Memmert environmental chamber CTC 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 info@labsupply.co.nz 

Sketch Environmental test chambers CTC256 

Temperature

Setting accuracy temperature up to 99.9 °C: 0.1 / from 100 °C: 0.5
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 sensor 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)

Humidity

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 water (only for demineralised water with a conductivity of 5 to 10 μS/cm and a pH value between 5 and 7) from 2 x 10 l tank on telescopic slide integrated in chamber, with automatic change-over.

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, humidity 2-point calibration at 20% and 90 % rh

Ventilation

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 %

Communication

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)

Safety

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
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

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

 

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