IEC60068-2-30 Walk-in Humidity and Temperature Controlled
Chamber 22m³ Complied Standards & Clauses
IEC60068-2-30:2005 “Environmental Testing-Part 2-30: Tests-Test Db:
Damp heat, cyclic (12h+12h cycle), IDT” IEC60068-2-78:2012 “Environmental Testing-Part 2-78: Tests-Test
Cab: Damp heat, steady state, IDT” IEC60068-2-1:2007 “Environmental Testing-Part 2-1: Tests-Test A:
Cold, IDT” IEC60068-2-2:2007 “Environmental Testing-Part 2-1: Tests- Test
B-Dry heat, IDT” Product information:
This test chamber simulates the temperature and humidity changeable
environment for the products or materials. It is widely used in the
adaptability test of electrical, electronics, instrument and meter
and other product parts under high and low temperature and humid
environment during storage, transportation and usage, to determine
the temperature adaptability of the above products or materials to
high and low temperature and humid environment, especially for
product electrification changes in performance and mechanical
properties. Technical Parameters
| No. | Project | Content | | A | Product number | SN886-6m³ | | B | Product brand | SINUO | | C | Chamber inner size | W2000mm x D1500mm X H2000mm | | External chamber Dimensions | Cabinet part: about 2300mm W ×2890mm D ×2350mm H | | D | Temperature range | -70℃～+180℃(range adjustable) | | Heating rate | -70℃～+180℃ average heating rate throughout the process about
2~3℃/min | | Cooling rate | +180℃～-70℃ average cooling rate throughout the process about
0.7～1℃/min | | Temperature display resolution | 0.1℃ | | Temperature fluctuation | ≤±0.5℃ | Data measured under no-load conditions | | Temperature deviation | ≤±2.0℃ | | Humidity range | 20%-98% RH | | Humidity deviation | +2.0%RH / -3.0%RH | | Humidity deviation | Below 75%RH≤±5.0%RH, above 75%RH≤+2/-3%R.H | | Humidity fluctuation | ≤±2.0%R.H | | Temperature and humidity control capability range chart | (Refer to the temperature and humidity controllable range chart, no
moisture source or heat load)
| | E | Motor noise | ≤75dB (A) (The noise detection device is measured 1m away from the
equipment door) | | F | Power Supply | AC3￠5W 380V 50Hz (R, STN three-phase five-wire plus ground wire)
(voltage fluctuation ≤±10%) | | G | Power | Overall 25KW | | H | Energy-saving design | The PLC of the control system is used to automatically adjust the
operating conditions of the refrigerator according to the test
conditions. The refrigeration system can adjust the power according
to the load and has compressor energy adjustment technology, which
can achieve excellent energy-saving effects. | | I | Cooling method | The equipment adopts water-cooling type (comes with a water tower,
water pump). |
Structural and material Overall installation | The warehouse is assembled and installed by fastening locks on
site, and has a beautiful appearance. The interlayer between the
inner chamber and the outer shell is filled with polyurethane foam
and reinforced steel plates, which can simultaneously insulate and
strengthen the inner and outer chambers. The structure is solid,
the installation is convenient and quick, and the construction
period is short. | | Outer chamber material | Standard thickness of exterior color steel plate: 0.8mm | | Inner chamber material | The inner chamber is made of SUS#304 matte stainless steel.
Thickness: 1.0mm | Insulation material | 100mm rigid polyurethane foam and glass wool, flame-retardant and
fireproof, meeting environmental requirements. The interlayer
between the inner chamber and the outer shell is filled with
polyurethane, which can simultaneously insulate and strengthen the
inner and outer chambers. The structure is solid, the installation
is convenient and quick, and the construction period is short. | | Vertical boards and roof boards | Made of SUS#304 matte stainless steel (full thickness 1.0mm) | | Bottom material | Made of SUS#304 embossed stainless steel anti-slip material | Chamber door | The exterior of the door is made of cold-rolled steel plates that
are CNC cut, folded, and painted (thickness 1.2mm), and the
interior is reinforced with square tubes to ensure no deformation
or air leakage during long-term use. Hinged single door, in order
to prevent condensation or frost on the door frame and the edge of
the door during low temperature testing, the door frame and the
edge of the door are equipped with electric defrosting devices. | | Bottom | The bottom drainage groove is 60mm wide and 30mm deep. It is sunken
around the bottom perimeter. 2 stainless steel floor drains are
used for the test chamber to test high temperature and high
humidity to discharge condensation water. |
Bottom plate | (a) Uniform load: 500kg/m2; (b) The bottom plate bearing capacity is ensured by horizontal
channel steel to ensure that the test chamber is installed on a
flat surface. The test chamber bottom plate is installed with
load-bearing wooden squares. A 3mm anti-slip aluminum plate is
installed on the stainless steel bottom plate to ensure uniform
stress on the entire bottom plate. | Observation window | Observation window size: Width 400*Height 600mm. The door is
equipped with a heat-resistant and anti-sweat 3-layer vacuum large
glass observation window. During any test, there will be no frost
or condensation on the surface. | | | Lighting device | 2 lighting lamps are installed in the test chamber, which is
explosion-proof and moisture-proof. | | Lead hole | The body is equipped with 1 Φ100mm hole, 1 soft plug and 1 hole
cover, which can be used for external test power cord or signal
line passing through | | | Sealing | The door seal of the test chamber is made of silicone rubber strip,
which is resistant to high and low temperatures, anti-aging, and
has good sealing performance. | | Pressure balance window | The pressure balance window balances the pressure inside and
outside the warehouse. It prevents the door from being pushed
outward when the internal pressure is too high during heating, and
prevents the door from being sucked inward and unable to open
during cooling. It is normally closed, and opens automatically when
the pressure difference is large. | | Temperature Sensor | Using imported platinum PT100 temperature sensor, high accuracy | | Humidity Sensor | Adopt high-sensitivity humidity sensor with high accuracy and long
life | | Air supply system | Schematic diagram of air supply | The air outlet adopts the circulation air return method of upper
air outlet and lower air return.
| | | Air supply characteristics | The air is transported by the centrifugal wind wheel, and the air
outlet louver adjusts the wind direction to fully ensure the
uniformity inside the chamber. | | Circulation motor | Using 380V asynchronous motor | |
Wind wheel | Multi-wing centrifugal circulation fan, high and low temperature
resistant aluminum alloy blades | | | Refrigeration system | | Refrigeration method | Binary cascade mechanical vapor compression |
| | Compressor | German GEA Semi-Hermetic Piston Compressor or Emerson Scroll
Compressor | Refrigerant | Non-fluorine and environmentally friendly HFC R404a+R23 |
| Condenser | Water-cooled high-efficiency shell and tube type | | Evaporator | High-efficiency multi-section aluminum alloy fin evaporator
(thickened fin type) | | | Other accessories | They are all high-quality products of international first-line
brands (picture on the right: filter dryer) | | | Dehumidification | Freezing and dehumidification by the refrigeration system (the air
in the box passes through the evaporator at a temperature lower
than the dew point, and moisture is precipitated) | | | Heating and humidification system | | Heating tube | Electric heating, high-quality nickel-chromium alloy electric
heating wire type, PID pulse width modulation control SSR
automatically adjusts the heating power. | | Control method | The controller output signal is used to achieve high-precision
contactless switch control through SSR solid state relays. | | Humidification tube | Boiler type electric heating, high-quality nickel-chromium alloy
electric heating wire type plus SUS304 armor, PID pulse width
modulation control SSR automatically adjusts the heating power.
Steam is injected into the test chamber after humidification | | Control method | The controller output signal is used to achieve high-precision
contactless switch control through SSR solid state relays. | | Control system and control circuit | | Controller | It adopts cold-balanced programmable color touch screen temperature
and humidity controller "7-inch" Chinese and English true color
touch screen human-machine interface (screen conversation type) | |
Screen display function |
| | | Dsiplay resolution | Temperature 0.01℃; humidity 0.1%; time 1min | | | Running mode | Program running, fixed value running | | Program capacity | Fixed value operation time can be set up to 9999h59m (setting 0
means continuous operation without time limit); Usable program capacity: maximum 120 groups; Usable memory capacity: 120 steps per group; Repeatable command execution: Each command can be executed up to
999 times. | | | Setting method | Human-machine dialogue mode, using touch input and control | | Communication interface | Can be connected to a computer to display curves and collect data
(the computer is not included) RS-232, RS-485 and USB communication devices |
| | USB memory card | Plugable USB flash drive to download historical curves, historical
data, hot-swappable function | | Data recording method | It has a battery-protected RAM that can save the device's setting
values, sampling values and sampling time; the curve recording
period can be set to 30~60 seconds, and the maximum memory time
stores 90 days of historical curves and historical data (when
sampling). | | | Power-off memory function | The power-off recovery mode can be set to: hot start/cold
start/stop. | | | Schedule startup function | Operator can set the power-on time at will, and the machine will
run automatically after the time is up when the power is turned on. | | | Main components of control circuit | The main components of the control circuit are all high-quality
brands. Please see the main material list for a detailed list. | | Circuit system reference diagram |
| Each line is normatively marked with a line number | | Protective function | Remark | 1. Comes with fuseless short circuit breaker protection switch 2. Compressor overload and overheating 3. System overcurrent/undervoltage protection device 4. Controller self-diagnosis and fault display 5. Low cooling water pressure protection 6. Power supply reverse phase protection, leakage and short circuit
protection 7. Load short circuit protection 8. Safety ground terminal 9. Fan motor overheating or overload protection 10. Air pressure balance device inside and outside the box |
| | Conditions of Use | 1. Ambient temperature: -5℃~+28℃; 2. Relative humidity: ≤85%RH; 3. Atmospheric pressure: 80kPa~106kPa 4. No strong vibration around 5. Equipment power supply: (note that test power supply is not
included) 5.1 Connect the power supply to 380VAC (±10%), three-phase wire +
protective ground wire, grounding resistance ≤ 4Ω; 5.2 Maximum effective power: 25KW 6. Frequency: 50±0.5HZ | Equipment structure diagram (for reference only)
1. Single door 2. Working room 3. Humidity and heat mixing chamber, 4. Humidifier 5. Evaporator 6. Heater 7. Fan 8. Refrigeration unit 9. Cooling
tower |
Details
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