Pregnant with environmental testing CTC - MEMMERT

Humidity

Humidity: Humidification from a hot steam generator
Humidity: Active adjustment of humidification and dehumidification from 10 to 98% relative humidity with digital display of air relative humidity; display resolution of 0.5%, adjustment accuracy of 1%
Humidity: Moisture supply from two 10-liter distilled water tanks with integrated telescopic removal device in the unit, with automatic switching
Humidity: 2 10-liter condensate collectors, with telescopic removal device

Temperature

Temperature range: Without humidity: from -42 °C to +190 °C
Temperature range: With humidity: from +10 °C to +95 °C
Deviation from ambient temperature +/- 0.5 to 2 K
Temperature: 2 Pt100 DIN A class four-wire thermosensors with mutual monitoring and maintenance of operation at exactly the same temperature
Display: Numerical determination of set values (resolution from 0.1 °C to 99.9 °C, 0.5 °C from 100 °C) and indication by light-emitting diode of the effective temperature value (0.1 °C resolution)

Regulation Technique

Controller: Electronic microprocessor thermal controller with self-diagnostic system
Controller: Digital display of all set parameters (temperature, day of the week, duration, humidity, mode, ramp segments, and configuration), language selection during configuration
Clock: Relative hour clock for temperature profile with a maximum of 40 ramps, possibility to set each segment between 1 minute and 999 hours
Calibration: Three temperature values of choice and two humidity calibration points: 20 and 90% relative humidity

Aeration

Mixing turbine: Extremely powerful, electronically adjustable, in the inner chamber
Air turbine: Automatic adaptation of speed or adjustment precision between 10 and 100% depending on the operating status

Communication

Interface: USB interface with Memmert's "Celsius" software for control and recording of states
Interface: Interface for parallel printer (with real-time timestamp function) for all PCL3-compatible inkjet printers to establish documentation compliant with laboratory best practices
State recording: Long-term integrated recording (circular memory) of all relevant data, compliant with laboratory best practices - 1,024 Kb
State recording: Program cycle recording in case of power failure
Programming: Control chip cards including 1 MEMoryCard XL with a memory capacity of 32 Kb (maximum of 40 ramps)

Safety

Thermal safety device: Mechanical temperature limiter TB of protection class 1 (DIN 12880) for heating cut-off at about 10 °C above the maximum device temperature
Thermal safety device: Thermostat (protection class 3.3) or temperature limiter (protection class 2) adjustable at the controller level

AutoSAFETY: Integrated additional thermal safety device with alarm for automatic monitoring of the setpoint, which automatically monitors the setpoint within a freely defined range, alarms in case of exceeding the upper/lower threshold, heating cut-off in case of overheating or cold group cut-off in case of undercooling
Self-diagnostic system: For detecting anomalies in temperature and humidity control
Alarm: Visual and audible alarm in case of too high/low temperature and too low humidity level, warning in case of door opening and empty water tank

Heating Concept

Powerful ring: Powerful heating ring with optimized air circulation
Door: Door heating to prevent condensation formation
Cooling: Cooling unit with 2 compressors; refrigerant R449A

Basic Equipment

Shelves: 1 stainless steel grid, electropolished
Factory calibration certificate for +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, material number 1.4301 (ASTM 304), hermetic welding
Interior chamber in stainless steel
Volume: 256 l
Dimensions: W(A) x H(B) x D(C): 640 x 670 x 597 mm
Max. number of shelves: 6
Max. load per shelf: 25 kg
Outer chamber in structured stainless steel
Dimensions: W(D) x H(E) x D(F): 898 x 1730 x 1100 mm (D +50mm excluding handle)
Installation: On casters with integrated brakes
Outer chamber: Back wall made of fully galvanized steel sheet

Electrical Data

Power: 400 V, 3 phases, 50/60 Hz / approximately 7000 W
Environmental Conditions
Installation: It is always advisable to maintain a clearance of about 25 cm between the test chamber and the walls/ceiling.
Ambient temperature: 16 ºC to 28 ºC
Relative humidity: max. 70%, non-condensing
Installation altitude: max. 2000 m above sea level
Pollution level: 2

Packaging/Shipping Data

Country of origin: Germany
Approximate dimensions, including packaging: Dimensions with packaging (W x D x H): 1020 x 1910 x 1310 mm
Approximate net weight: 337 kg
Approximate gross weight under carton: 463 kg