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The Memmert TTC256 environmental test chamber offers precise temperature control from -42°C to +190°C, with advanced humidity management. Equipped with an electronic microprocessor controller, it ensures reliable testing conditions for various applications.
| Specification | Details |
|---|---|
| Temperature range | from -42°C up to +190°C |
| Setting accuracy temperature | up to 99.9 °C: 0.1 / from 100 °C: 0.5 |
| 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) |
| Calibration | three freely selectable temperature values |
| 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. |
| 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 |
| 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 control |
| Alarm | with visual and acoustic alarm in case of over-/under temperature and open door |
| Door | door heating to avoid condensation |
| Ring heater | high-performance ring heaters with optimised air circulation |
| Cooling | twin compressor; refrigerant R449A |
| Works calibration certificate | standard values -20 °C and +160 °C |
| Door | fully insulated stainless steel door with double-locking and 4-point adjustment, heated |
| Entry port | Entry port right, 80 mm, with stopper |
| Internals | 1 stainless steel grid(s), electropolished |
| Interior | Easy-to-clean stainless steel interior, material 1.4301 (ASTM 304), hermetically welded |
| Volume | 256 l |
| Dimensions | w(A) x h(B) x d(C): 640 x 670 x 597 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 mm (d +50mm door handle) |
| Installation | on lockable castors |
| Housing | rear zinc-plated steel |
| Electrical load | 400 V, 3ph. w/o N 16A, 50 Hz / approx. 7000 W |
| Set Up | The distance between the test chamber and the walls/ceiling must be at least 25 cm. |
| Ambient temperature | 16 ºC to 28 ºC |
| Humidity rh | max. 70 %, non-condensing |
| Altitude of installation | max. 2,000 m above sea level |
| Pollution degree | 2 |
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