This document describes the Nüve EN 032, EN 055, and EN 120 series of incubators, designed for a variety of laboratory applications.
Function Description
The Nüve EN 032, EN 055, and EN 120 incubators are engineered to provide optimal incubation conditions for applications in biology and microbiology laboratories, including medical and veterinary fields, research, and quality control examinations in pharmaceutical, food, cosmetics industries, and biotechnology. These incubators maintain a temperature range from ambient temperature plus 5°C up to 100°C, ensuring stable temperatures within specified tolerances.
A key feature is the integrated timer, programmable for up to 99.9 hours, including a "hold" position. The incubators automatically cease operation once the set time is completed. The design minimizes the risk of cross-contamination through natural air circulation. Stable and homogeneous temperature distribution within the chamber is achieved by stainless steel heaters positioned on the three outer surfaces of the chamber. The insulation, proportional to the incubator's dimensions, not only contributes to temperature uniformity but also enhances operational efficiency.
The incubators are equipped with an N-Prime™ programmable microprocessor control system, offering high control accuracy and reliable working conditions. An adjustable safety thermostat provides an additional layer of safety. In the event of malfunctions in the control system or temperature sensor shutdown, an alarm system is activated, providing visual and audible warnings to the user. Study data is recorded in the internal memory and can be transferred to an external USB memory device. For enhanced security, unauthorized access to parameter changes is blocked by an improved password menu.
These devices comply with several standards, including EN 61010-1, EN 61010-2-010, EN 50419, EN 61000-6-3, and DIN 12880, and are in compliance with WEEE Regulation.
Important Technical Specifications
The incubators come in three models: EN 032, EN 055, and EN 120, differing primarily in useful volume and power consumption.
General Specifications:
- Temperature Range: Ambient Temperature +5°C / 100°C
- Temperature Sensor: Pt-100
- Temperature Control System: N-Prime™
- Temperature Set and Display Sensitivity: 0.1°C
- Temperature Variation: <± 0.5°C (at 37°C), <± 1°C (at 56°C)
- Temperature Fluctuation: ± 0.1°C (at 37°C), ± 0.2°C (at 56°C)
- Timer: 1 minute-99.9 hours / Hold position
- Program Delay: 1 minute-99.9 hours / Hold position
- Safety System: Safety Thermostat (30°C-110°C)
- Power Supply: 230 V, 50/60 Hz.
- Memory: 3000 data (each line records temperature, time, and error code)
- Internal Material: Stainless Steel
- External Material: Epoxy-polyester powder coated steel
Model-Specific Specifications:
- EN 032:
- Useful Volume: 32 liters
- Number of Shelves (standard/maximum): 2/6 pcs.
- Power Consumption: 300 W
- Internal Dimensions (W x D x H): 330 x 300 x 335 mm
- External Dimensions (W x D x H): 565 x 500 x 685 mm
- Net / Packed Weight: 38 / 42 kg
- EN 055:
- Useful Volume: 55 liters
- Number of Shelves (standard/maximum): 2/7 pcs.
- Power Consumption: 350 W
- Internal Dimensions (W x D x H): 420 x 370 x 365 mm
- External Dimensions (W x D x H): 645 x 560 x 710 mm
- Net / Packed Weight: 46 / 49 kg
- EN 120:
- Useful Volume: 120 liters
- Number of Shelves (standard/maximum): 2/10 pcs.
- Power Consumption: 400 W
- Internal Dimensions (W x D x H): 500 x 480 x 500 mm
- External Dimensions (W x D x H): 730 x 670 x 850 mm
- Net / Packed Weight: 57 / 66 kg
Optional Accessories:
- Mesh type shelves (R 01 133 for EN 032N, R 01 127 for EN 055N, R 01 031 for EN 120N)
- Shelf carriers (K 23 049 for EN 032N, K 23 048 for EN 055N, K 23 040 for EN 120N) - two pieces of shelf carriers must be ordered for each shelf.
Usage Features
The incubators are designed for indoor use, operating safely within ambient temperatures of 5°C to 40°C, with a maximum relative humidity of 80% up to 31°C, and at altitudes up to 2000 m. Optimal performance is achieved between 15°C and 25°C ambient temperature.
Control Panel Functions:
The control panel features a temperature display, time display, encoder button, start/stop button, heating lamp, "operating the program" lamp, data transfer lamp, alarm LED, "end of the program" lamp, USB lamp, and a back/alarm mute button.
- Encoder Button: Used to increase/decrease temperature and time values, and for selection/confirmation.
- Start/Stop Button: Initiates or halts operation.
- Heating Lamp: Illuminates during the heating process.
- Operating The Program Lamp: Indicates when a program is running.
- Data Transfer Lamp: Indicates data transfer to memory or during software updates.
- Alarm Led: Flashes for warnings or errors.
- End of The Program Lamp: Signals program completion.
- USB Lamp: Lights up when an external USB memory (up to 8 GB) is connected.
- Back/Alarm Mute Button: Silences audible alarms and cancels menu changes.
Programming:
The device features a password-protected menu for user settings, including changing the password, updating date/time, and accessing operator menu parameters. Parameters such as recording period, timer set band, and buzzer ON/OFF can be configured. The timer set band defines when the countdown begins relative to the set temperature. The device supports a delay start function for heating.
Safety Precautions:
- Always use the instrument for its intended purpose and by authorized, trained staff.
- Only use original Nüve spare parts and accessories.
- Ensure a correctly grounded power supply.
- Do not operate if damaged or with a damaged cable.
- Do not move the instrument during operation.
- The set temperature should not compromise sample integrity.
- Boiling points of samples must be higher than the set temperature, and freezing points lower.
- Liquefying or expanding samples should not be in sealed containers.
- Liquids should not overflow during heating.
- Open the ventilation hole if gases or vapors are produced.
- Adjust the safety thermostat to a temperature higher than the set temperature.
- Avoid placing combustible, explosive, heat-susceptible, flammable, adhesive, or fusible materials in the chamber.
- Ensure generated vapors and gases are not harmful, flammable, or explosive.
- If the door is open during operation, the heaters will continue to operate and may overheat, causing damage.
- Exercise caution when handling hot samples after operation.
Maintenance Features
The Nüve incubators are designed for minimal maintenance.
- Periodic Maintenance: The device does not require any specific periodic maintenance.
- Cleaning:
- Clean the incubator at room temperature after disconnecting the power cable.
- Use a damp cloth to remove dirt and dust.
- For tough dirt, use liquid detergent.
- Always take precautions when handling chemical cleaners and be aware of their potential effects.
- Regularly check the external condition for rust spots and remove them if they develop.
Troubleshooting:
The manual provides guidance for common issues:
- Failure to operate: Check power switch, fuse, plug condition, proper plugging, and mains supply.
- Failure to heat: Verify program start and ensure the safety thermostat is set higher than the desired temperature.
- Error Codes:
- Er1: Temperature sensor endings are broken (flashes on display, audible alarm).
- Er2: Electronic failure in the microprocessor (flashes on display, audible alarm).
- Er3: Temperature sensor measures a temperature higher than specified (flashes on display, audible alarm).
- Er4: Temperature sensor endings are connected in reverse (flashes on display, audible alarm).
- EoF: Probable power cut (flashes on display, audible alarm).
- In case of any error, the program stops automatically. Contact an authorized Nüve agent for technical assistance.
- Fuse Replacement: Fuses must always be replaced by authorized personnel.
Disposal:
Disposal must adhere to local regulations. Potentially infectious materials must be disinfected prior to disposal. Electronic components, batteries, and power packs must be dismounted and disposed of according to applicable regulations.
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