| Memmert environmental test chamber |
CTC256 |
TTC256 |
|
Stainless steel interior |
|
|
| Volume ca (l) |
256 |
256 |
| Width (mm) |
640 |
640 |
| Height (mm) |
670 |
670 |
| Depth (mm) |
597 |
597 |
| Maximum number of grates/perforated plates |
6 |
6 |
| Maximum load per grating / perforated plate (kg) |
25 |
25 |
| Maximum load per unit (kg) |
100 |
100 |
| Structured stainless steel housing |
|
|
| Width (plus 20 mm for silicone plugs and 5 mm for interfaces) (mm) |
898 |
898 |
| Height (mm) |
1730 |
1730 |
| Depth (without door handle), depth of door handle 50 mm (mm) |
1100 |
1100 |
| Fully insulated heated stainless steel door |
yes |
yes |
| Lockable castors for easy transport |
yes |
yes |
| Standard accessories |
|
|
| Stainless steel gratings, electropolished (quantity) |
1 |
1 |
| Feed-through right 80 mm with sealing plug |
yes |
yes |
Speed-controlled high-performance air turbine adjustable in 10% steps with
monitoring function of the fan speed and automatic speed adjustment |
yes
|
yes
|
| Standard factory calibration certificate (measuring point in the middle of the useful space) (°C) |
-20 and +160 |
-20 and +160 |
| Standard factory calibration certificate (measuring point in the middle of the useful space) (°C) |
+30 °C and 60% rh |
- |
| Temperature |
|
|
| Electronic microprocessor temperature controller with Pt100 and self-diagnosis system (°C) |
yes |
yes |
Temperature sensor Pt100 DIN class A in 4-wire measurement for uninterrupted
operation in case of failure of a Pt100 with warning display |
twofold
|
twofold
|
| Temperature range with humidity control (°C) |
+10 to +95 |
- |
| Temperature range with humidity control (°C) |
-42 to +190 |
-42 to +190 |
| Setting accuracy (°C) |
-42 to 99.9; 0.1 /
100 to 190: 0.5 |
-42 to 99.9; 0.1 /
100 to 190: 0.5 |
Temperature change rate in heating mode (according to IEC 60068-3-5) -40
°C to +180 °C measured at 22 °C ambient temperature |
10 K / minute
|
10 K / minute
|
Temperature change rate in cooling mode (according to IEC 60068-3-5) +180 °C
to -40 °C measured at 22 °C ambient temperature |
3 K / minute
|
3 K / minute
|
Temporal temperature fluctuation according to DIN 12880:2007-05
(setpoint-dependent from min. temperature to +150 °C and humidity >20% (K) |
±0.2 to 0.5
|
±0.2 to 0.5
|
| Spatial temperature deviation (setpoint-dependent) (K) |
±0.5 to 2 |
±0.5 to 2 |
| Humidity |
|
|
| Capacitive humidity sensor |
yes |
- |
Active microprocessor humidification and dehumidification control (10 to 98% rh), including
digital display and self-diagnosis system guarantees faster achievement of the set humidity with
particularly short recovery times; humidity supply with water (use only demineralised/fully
demineralised water with a conductivity of 5 to 10 µS/cm and a pH value between
5 and 7; from external container) by means of a self-priming pump |
yes
|
-
|
| Temporal humidity stability (% rh) |
±1 to 3 |
- |
Telescopic pull-out for 2 x 10 litre canisters for water (only use demineralised/fully
demineralised water with a conductivity of 5 to 10 µS/cm and a pH value between 5
and 7), as well as 2 x 10 litres as a condensate collection container |
yes
|
-
|
| Automatic water canister switchover with warning display for continuous continuous operation |
yes |
- |
| Control engineering |
|
|
Relative time program clock: max 40 program segments (each 1 minute to 999 hours) programmable
via controller or MEMoryCard XL, alternatively via PC and free
software: unlimited ramp programming |
yes
|
yes
|
| Real-time weekly program clock (with group function, e.g. Monday to Friday) |
yes |
yes |
| Calibration: (possible without separate PC), temperature: 3-point calibration on the controller |
yes |
yes |
| Calibration: (possible without separate PC), humidity: 2-point calibration at 20% and 90% rh |
yes |
- |
| Setting the dialogue or display languages DE/ EN/ ES/ FR/ IT |
yes |
yes |
Microprocessor-based
temperature selector monitor (protection class 3.3) with Pt100 including fault diagnosis with visual and audible
fault indication |
yes
|
yes
|
| Temperature monitoring corridor (ASF) automatically following the setpoint |
yes |
yes |
| Monitoring relay for safe separation of the heating in case of a fault |
yes |
yes |
| Mechanical thermal fuse (TB) |
yes |
yes |
| Communication |
|
|
Internal log memory 1024 kB as ring memory for all setpoints, actual values, errors,
settings with real time and date; logging approx. 3 months (CTC) or 6 months (TTC
) with 1 minute storage interval |
yes
|
yes
|
Parallel printer interface for printing the protocol data for all PCL3-compatible
inkjet printers (USB via converter possible) |
yes |
yes |
Software ''Celsius'' for control and logging of temperature and relative
humidity (CTC) |
yes
|
yes
|
| Cooling system |
|
|
High-performance twin compressor (refrigerant R449A) with speed-controlled condenser
fan and electronically controlled refrigerant injection |
yes
|
yes
|
| Large surface evaporator made of stainless steel |
yes |
yes |
| Light |
|
|
| Halogen interior lighting 2 x 25 Watt |
yes |
yes |
| Further data |
|
|
| Acoustic and optical signal messages: Door open warning |
yes |
yes |
| Acoustic and optical signal messages: Empty water tank warning |
yes |
- |
| Acoustic and optical signal messages: Temperature over-/undercut |
yes |
yes |
| Acoustic and optical signal messages: Humidity undercut |
yes |
- |
| Power consumption at 400 V, 3 ph, 50 Hz ca (W) |
7000 |
7000 |
| Weight |
|
|
| Net weight (kg) |
337 |
337 |
| Gross weight (in box) (kg) |
463 |
463 |
