NextGen Environmental Chambers NG-EC 100,150,225,408,1000
Plastic Testing Equipment
Standards
ASTM A194, ASTM C157, ASTM C367, ASTM D1151, ASTM D1183
Description:
The temperature and humidity NextGen Environmental Chambers feature a sturdy cabinet made of cold-rolled steel and stainless steel, with an insulation layer to prevent frost and dew. The cabinet includes independent temperature control, circulating air ducts, heaters, and cooling systems. It also has a manual, single-opening door with a constant temperature heating belt and a viewing window with moisture-proof lighting fixtures. The chamber uses mechanical compression refrigeration and high-quality refrigeration accessories. It has a 7" TFT colour touch screen controller with an extensive program capacity and various protection features. The equipment provides two stainless steel sample racks with adjustable spacing and a maximum load of 100kg.
NextGen Environmental Chambers Standard Features
| Item | NG-EC100 | NG-EC150 | NG-EC225 | NG-EC408 | NG-EC1000 |
|
Internal Dimensions (W x H x D) |
20" x 20" x 16" | 20" x 24" x 20" | 24" x 30" x 20" | 31.5" x 33.5" x 24" | 39" x 39" x 39" |
|
External Dimensions (W x H x D) |
25" x 68" x 52" | 28" x 72" x 56" | 35.5" x 75" x 60" | 42.5" x 82" x 65" | 51" x 91" x 81" |
| Temperature Range | -40°C to +150°C | ||||
| Temperature Fluctuations | ≤±0.5℃ (w/o anything in chamber) | ||||
| Temperature Uniformity | ≤4℃ (w/o anything in chamber) | ||||
| Temperature Deviation | ≤±2℃ (w/o anything in chamber) | ||||
| Heating Rate | +25°C to +150°C ≥40min（without load) | ||||
| Cooling Rate | +25°C to -70°C ≥80min （without load) | ||||
| Power Requirements | 1 phase, AC220V, 50/60Hz, Approx. 4.5kW | 1 phase, AC220V, 50/60Hz, Approx. 5kW | 3 phase, AC380V, 50/60Hz, Approx. 9kW | 3 phase, AC380V, 50/60Hz, Approx. 9.5kW | 3 phase, AC380V, 50/60Hz, Approx. 14kW |
| Humidity Range |
Temperature : +20°C to +85°C，Humidity： 20% to 98% RH
|
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| Humidity Deviation |
1、≥75%RH : ≤±3%RH 2、≤75%RH：≤±5%RH |
||||
| Noise |
≤75db - Measured 3 feet in front of the chamber door, at 4 feet in height |
||||
NextGen Environmental Chambers Structure Features
Cabinet
- The cabinet includes independent temperature control with circulating air ducts, heaters, cooling systems, etc.
- Outer Wall: 0.059” cold-rolled steel plate with plastic-sprayed surface
- Insulation layer: 4” polyurethane foam + ultra-fine glass wool, to ensure that the outer surface of the test chamber does not frost or dew;
- Inner wall: 0.047” Stainless 304 #4 Stainless Steel Sheet;
Circulation Ducting
- The circulating air duct is set at the back on the interior of the chamber
- Motor, impeller, heater and evaporator are installed in order from top to bottom inside the air duct
Door
- Manual, single-opening door is set on the front of the chamber with quality hinges and door locks.
- A constant temperature heating belt is installed around the door. The heating belt is automatically turned on for defrosting depending on the ambient temperature.
Viewing Window
- Each door is equipped with a three-layer hollow electric vacuum glass observation window. The observation window automatically turns on the defogging function according to the ambient temperature to ensure a clear observation at any state.
Lighting
- The observation window is equipped with a set of moisture-proof lighting fixtures to ensure that the test pieces in the box can be clearly observed under any working conditions. The lamp has the function of automatically turning off to prolong the life of the bulb.
Test Hole
- 2” test hole with Side Access on the Chamber
- Test holes are equipped with custom accessories and flexible silicone rubber seals.
Sample rack
- The equipment provides 2 stainless steel sample racks with adjustable spacing and a max load of 100Kg.
- To maintain air pressure balance between the interior of the chamber and the external environment during the test, the box is provided with a set of air pressure balance windows.
NextGen Environmental Chambers Cooling System
Refrigeration Method
- Mechanical Compression Refrigeration;
- Compressor starts as needed and at a specific time if desired
- The controller works together with the solenoid valve to control the on and off refrigerant flow for cold balance control. This prevents cooling during heating, and heating during cooling cycles.
Cooling method
- Air-cooled
- Refrigerant
- High temperature class: R404A / R23, DuPont
- The above refrigerants are all environmentally friendly that meet international environmental protection requirements.
Reliability
The main refrigeration accessories are assembled with internationally recognized brands including France Tecumseh compressors, Denmark DANFOSS pressure controller, American EMERSON oil separator, American EMERSON or Italian CASTEL solenoid valve, etc. NextGen Material Testing is dedicated to providing a long-lasting solution and uses quality components on the chamber from top to bottom.
NextGen Environmental Chambers Temperature Control
Temperature
- Temperature measurement: High-precision A-class PT100 platinum resistance sensor
- Temperature control
The controller collects the temperature sensor signal and automatically adjusts the heating power or refrigerant flow through the PID + SSR output to ensure that the air temperature in the chamber reaches a dynamic equilibrium.
- Heater: High-quality nickel-cadmium alloy wire heater driven by a non-contact zero-cross triggering solid state controller.
The water vapor condensation on the surface of the evaporator is achieved by the cooling capacity of the previous stage compressor. When the dew point temperature of the air in the chamber is lower than the surface temperature of the dehumidification evaporator, the water vapor in the air will condense on the surface of the evaporation coil.
NextGen Environmental Chambers Control System
Environmental Chambers Controller
- 7” TFT color touch screen controller
- Controller parameters:
- Accuracy: temperature ± 0.1°C + 1 digit, humidity ± 1% R.H + 1 digit
- Resolution: temperature ± 0.01°C, humidity ± 0.1% R.H
- Temperature slope: 0.1 to 9.9 (Can be set)
- Temperature input signal PT100x1 SensorP.I.D control parameters: 9 sets of PID control parameters are automatically calculated
- Screen functions
- Touch input, display temperature and humidity set value and measured value, various parameters of program operation, operation timing, equipment operation curve and history curve, fault prompt screen, with a adjustable screen brightness
Program Capacity
Available program groups: up to 250 saved patterns
Usable memory capacity: Up to 12500 segments
- Program editing adopts conversational style, with functions such as editing, clearing, inserting, etc.
- SEGMENTS time setting 0 ～ 540Hour59Min
- Record function
The controller can save the setting values, sampling values and sampling time of the equipment up to 90 days.
- Data stored in the controller can be called, analyzed, and processed using office programs such as Microsoft Excel
- Communication function
The control system can export the data saved by the device operation through the USB interface
- The control system can communicate with your computer through an RS232 connection or with the optional Ethernet interface.
NextGen Environmental Chambers Protection
- Chamber Over-Temperature Protection
- Heater Short Circuit Protection
- Humidifier Short Circuit Protection
- Fan Overload Protection
- Compressor Overpressure Protection
- Compressor Overload Protection
- Water Cut/Shortage Protection
- Electrical Ground Protection.
FAQs
NextGen Environmental Chambers uses R134a refrigerant, which is a hydrofluorocarbon (HFC) refrigerant that has become a popular replacement for the older R-12 refrigerant in automotive air conditioning systems. R134a has a much lower ozone depletion potential than R-12, which makes it a more environmentally friendly option. It is also less flammable than other refrigerants, making it a safer choice for use in air conditioning systems.
R134a refrigerant is commonly used in air conditioning systems for both vehicles and buildings. It has good thermodynamic properties and is able to provide efficient cooling. It also has a lower toxicity level compared to other refrigerants, making it a safer option for use in various applications. However, R134a is a greenhouse gas, which means that it has the potential to contribute to climate change if it is not properly contained and disposed of.
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Rubber hardness testing is a critical aspect of evaluating the quality of rubber products. Hardness refers to the resistance of rubber to indentation or deformation under the application of a certain force. It is a key property that determines the performance of rubber products in various applications.
The NextGen Environmental Chambers NG-EC is designed to operate within a wide temperature range of -70°C to +180°C, providing flexibility for testing materials at extreme temperatures.
Our chamber uses an advanced control system to maintain temperature stability and uniformity, ensuring accurate and consistent results. The control system features a programmable temperature controller and a high-precision sensor to maintain the desired temperature within a tolerance of ± 0.5°C.
The temperature range of the NG-EC makes it an ideal choice for a range of industries, including plastics, rubber, electronics, and aerospace. It can be used to test the performance of products in extreme environmental conditions, helping manufacturers to develop high-quality and reliable products.
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The NextGen Environmental Chambers NG-EC is designed to meet the needs of rubber and plastic manufacturers who require a reliable and efficient way to perform environmental testing. The chamber is equipped with a spacious interior that can accommodate multiple sample racks.
Each NG-EC chamber comes with one sample rack included in the package. However, additional sample racks can be purchased separately depending on the customer's needs. The sample rack is specifically designed to securely hold samples during testing and ensure consistent exposure to the environmental conditions inside the chamber.
The number of samples that can be tested at once depends on the sample size and the chamber size. The NG-EC chamber has a capacity of 100 litres, which allows for the testing of a significant number of samples at once. The chamber's advanced temperature and humidity control systems ensure accurate and stable conditions for each sample, enabling precise and repeatable results.
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The NextGen Environmental Chambers NG-EC features a precise and reliable temperature control system that ensures the internal temperature of the chamber is maintained within the desired range. The chamber uses a microprocessor-based PID controller that constantly monitors and adjusts the temperature to within ±0.2°C of the set point.
The temperature control system in the NG-EC works by circulating chilled air through a refrigeration system that uses R134a refrigerant. The refrigeration system is designed to remove heat from the chamber and maintain the temperature at the desired level. The temperature sensor located inside the chamber sends a signal to the controller, which adjusts the amount of refrigerant flowing through the system to maintain the set temperature.
Our chamber also features a fan system that ensures uniform temperature distribution throughout the chamber. The fan circulates the air, ensuring that the temperature is consistent across all sample racks. Moreover, the NG-EC features a safety thermostat that cuts off the power to the heater and compressor if the temperature exceeds the set limit.
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The NextGen Environmental Chambers NG-EC has an automatic defrosting function that is designed to remove ice build-up on the evaporator coils. This is necessary to ensure that the unit operates efficiently and maintains consistent temperature control. The defrost cycle is controlled by a microprocessor-based controller that monitors the temperature of the evaporator coils and initiates defrosting when necessary.
The defrosting function is initiated when the controller detects that the evaporator coils have reached a pre-set temperature. When this occurs, the refrigeration cycle is temporarily suspended, and the unit's electric heaters are turned on to melt the ice on the coils. Once the ice has melted, the controller will then turn off the electric heaters and resume the refrigeration cycle. The frequency of defrost cycles is determined by the amount of frost accumulation on the coils, which can be influenced by factors such as humidity levels and the number of door openings.
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The NextGen Environmental Chambers come with a defrosting function to ensure that frost accumulation does not affect the accuracy of the testing process. The defrosting function is controlled by an automatic system that senses the amount of ice buildup on the evaporator and initiates the defrost cycle as needed. The system uses a programmed microprocessor-based controller to monitor the chamber's temperature and humidity levels and control the defrost cycle.
During the defrost cycle, the system temporarily stops the cooling and heating functions and activates the defrost heater to melt the ice. The water produced from the defrost cycle is then collected in a drain pan and removed from the chamber. The defrost cycle is timed and varies depending on the amount of ice buildup, typically 30 to 45 minutes.
The automatic defrosting function is designed to minimize the need for manual intervention, reducing the risk of errors and ensuring test results' accuracy. The user can also manually initiate the defrost cycle if necessary. Additionally, the system includes a defrost heater safety limit switch to prevent overheating and ensure safe operation.
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The NextGen Environmental Chambers NG-EC features a high-precision temperature measurement system with a resolution of 0.1°C. The temperature measurement system uses a platinum resistance thermometer (PRT). PRTs are a type of temperature sensor that is known for their excellent accuracy and long-term stability.
A microprocessor-based temperature controller controls the temperature measurement system, which continuously monitors and adjusts the temperature inside the chamber to maintain the set temperature within a tight tolerance range. The temperature controller uses feedback from the PRT to adjust the heating and cooling systems to maintain the set temperature.
The NG-EC also features an optional data logger system that can record temperature and humidity data at user-defined intervals. The data logger system uses a high-precision thermistor sensor with a resolution of 0.01°C to provide accurate temperature measurements, which can be downloaded to a computer for analysis.
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The NextGen Environmental Chambers NG-EC-100/150 series have a highly precise humidity sensor with a resolution of 0.1%RH. The high resolution of the humidity sensor allows users to make precise adjustments to the humidity levels within the test chamber to achieve the desired testing conditions.
The humidity measurement is performed using a capacitive sensor, which operates based on the principle that the electrical capacitance of the sensor varies as a function of the relative humidity. The sensor's built-in microprocessor uses an algorithm to convert the capacitance measurement to a digital signal, which can be read and displayed on the chamber's control panel.
The NG-EC-100/150 series also features a humidity range of 10% to 98%RH, allowing users to test various products under various humidity conditions. The chamber is designed to provide consistent and uniform humidity distribution throughout the test area, ensuring that all samples are subjected to the same testing conditions.
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The insulation material used in the cabinet of this environmental chamber is a critical component that determines its energy efficiency and temperature stability. This product insulates the cabinet with high-quality polyurethane foam that provides excellent thermal insulation properties. Polyurethane foam insulation is widely used in environmental chambers due to its low thermal conductivity, high strength-to-weight ratio, and excellent dimensional stability. The foam insulation is applied to all sides of the cabinet walls, including the doors, to ensure that there are no thermal leaks.
Polyurethane foam insulation has a high R-value, which is a measure of its thermal resistance. The higher the R-value, the better the insulation properties. The R-value of the insulation used in this product is designed to maintain a consistent temperature inside the chamber even when the temperature outside fluctuates. The insulation also helps reduce energy consumption, as the cooling system does not have to work as hard to maintain the desired temperature.
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Yes, you can export data from the controller of this product. The NextGen Environmental Chambers has a user-friendly touchscreen controller that allows easy data logging and exporting. The controller allows exporting data via USB, Ethernet, or RS-485. This feature allows for the easy transfer of test data to a computer or other device for further analysis and documentation.
The touchscreen controller also has a built-in data logging function that can record and store test data over an extended period. This data can be exported in CSV format, which is easily readable by most spreadsheet software. The controller also allows for inputting test parameters, such as temperature and humidity set points, as well as the test duration.
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