HUDA QD-E705-12m³（-60℃） and HUDA QD-E705-20m³（-60℃） compare

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Model selection comparator If you have any questions, please click below Service	HUDA QD-E705-12m³（-60℃） Constant temperature and Humidity Test Chamber 269430.0 RMB China Detail	HUDA QD-E705-20m³（-60℃） Humidity Chamber 320700.0 RMB China Detail

Model comparison

Min-TEMP	-60℃	-60℃
Max-TEMP	≤100℃	≤100℃
Min-RH	≤20%RH	≤20%RH
Max-humidity	98% RH	98% RH
Volume	≤800L	≤800L
TEMP fluctuation	±0.5℃	±0.5℃
Humidity deviation	±2%	±2%

Parameter comparison

Inner size	12M ³ (Miscellaneous size can be customized)	20M ³ (Miscellaneous size can be customized)
Temperature range	-60~80℃	-60~80℃
Specimen limitation	This test equipment prohibits the testing of flammable, explosive and volatile matter samples; the testing of storing corrosive substance samples, the testing of storing organisms, the testing and storage of strong electromagnetic emission source samples	This test equipment prohibits the testing of flammable, explosive and volatile matter samples; the testing of storing corrosive substance samples, the testing of storing organisms, the testing and storage of strong electromagnetic emission source samples
Power supply conditions	The user is required to configure the air or power switch of the corresponding Capacity for the equipment at the installation site, and the switch must independently control the use of the equipment	The user is required to configure the air or power switch of the corresponding Capacity for the equipment at the installation site, and the switch must independently control the use of the equipment
Permissible Voltage Variation	10%	10%
Frequency	50±0.5Hz	50±0.5Hz
Protective ground resistance	Less than 4Ω	Less than 4Ω

Functional requirements	1. (air) indoor space cooling, heating, humidification, dehumidification; 2. According to the temperature and Humidity setting, the indoor space reaches the set temperature and Humidity	1. (air) indoor space cooling, heating, humidification, dehumidification; 2. According to the temperature and Humidity setting, the indoor space reaches the set temperature and Humidity
Test environmental conditions	Ambient Temperature is + 25 ℃, Relative Humidity ≤ 85%, the test chamber without sample conditions measured.	Ambient Temperature is + 25 ℃, Relative Humidity ≤ 85%, the test chamber without sample conditions measured.
Humidity control range	20~98%H.R	20~98%H.R
Temperature Resolution	0.01℃	0.01℃
Heating rate	25→80℃≤35min	25→80℃≤35min
Laboratory structure	Combined assembly board, detachable structure, convenient for on-site installation.	Combined assembly board, detachable structure, convenient for on-site installation.
Enclosure Material	Color plate φ = 0.8mm	Color plate φ = 0.8mm
Inner box material	Stainless steel plate SUS304 φ = 0.8mm	Stainless steel plate SUS304 φ = 0.8mm
Thermal insulation material	100mm insulation material is rigid polyurethane foam	100mm insulation material is rigid polyurethane foam
Baseplate load	The baseplate is strengthened, and the load can be 600kg/㎡ (evenly distributed load)	The baseplate is strengthened, and the load can be 600kg/㎡ (evenly distributed load)
Material of door	Same warehouse board	Same warehouse board
Film thickness of the door	100mm insulation material is rigid polyurethane foam	100mm insulation material is rigid polyurethane foam
Door	Double door, effective headroom size W1500 * H2200mm,	Double door, effective headroom size W1500 * H2200mm,
Door lock	Japanese door lock, strong door hinge, with anti-deadlock device	Japanese door lock, strong door hinge, with anti-deadlock device
Viewing Window	2 Viewing Windows: There are 2 W300 * H450mm conductive film explosion-proof and fog-proof tempered Glass Viewing Windows on the door.	2 Viewing Windows: There are 2 W300 * H450mm conductive film explosion-proof and fog-proof tempered Glass Viewing Windows on the door.
test hole	1 test hole, size: Φ100mm, the position is to be determined by the customer	1 test hole, size: Φ100mm, the position is to be determined by the customer
Controller	TEMI2700 LCD touch programmable Control system imported from Korea; lighting switch, main power switch, RS-232 communication interfaceImported Controller, control temperature and Humidity respectively; South Korea SAMWON, color touch screen control TEMI2700	TEMI2700 LCD touch programmable Control system imported from Korea; lighting switch, main power switch, RS-232 communication interfaceImported Controller, control temperature and Humidity respectively; South Korea SAMWON, color touch screen control TEMI2700
Machinery room	Refrigeration unit, exhaust fan, drainage device, water vapor outlet	Refrigeration unit, exhaust fan, drainage device, water vapor outlet
Distribution control cabinet	Total power circuit breaker, Controller, switchboard, cooling fan, over-temperature protector	Total power circuit breaker, Controller, switchboard, cooling fan, over-temperature protector
Heating system	Using scale heat dissipation heating pipe P.I.D to control heating to achieve temperature equilibrate	Using scale heat dissipation heating pipe P.I.D to control heating to achieve temperature equilibrate
Chill down the system	Heat exchanger: water-cooled condenser	Heat exchanger: water-cooled condenser
Mode of transportation	The mechanical room is transported as a whole, and the spare parts of the warehouse are packaged and transported.	The mechanical room is transported as a whole, and the spare parts of the warehouse are packaged and transported.
Controller	TEMI2700 LCD touch programmable Control system imported from Korea; lighting switch, main power switch, RS-232 communication interfaceImported Controller, control temperature and Humidity respectively; South Korea SAMWON, color touch screen control TEMI2700	TEMI2700 LCD touch programmable Control system imported from Korea; lighting switch, main power switch, RS-232 communication interfaceImported Controller, control temperature and Humidity respectively; South Korea SAMWON, color touch screen control TEMI2700
RS-232 communication interface	Can be connected to a computer to display Linear dispersion, data acquisition; can be used as a monitoring and remote Control system; can be synchronized with multiple machines	Can be connected to a computer to display Linear dispersion, data acquisition; can be used as a monitoring and remote Control system; can be synchronized with multiple machines
SD memory card	Used to store test data and test Linear dispersion, the standard storage Capacity is 2G, which can be expanded to 4G	Used to store test data and test Linear dispersion, the standard storage Capacity is 2G, which can be expanded to 4G
Setup method	Chinese/English interface, touch input	Chinese/English interface, touch input
Operation mode	Program method/fixed value method	Program method/fixed value method
Set range	Maximum Temperature range 5 ℃Temperature: Adjust according to the temperature working interval of the equipment (upper limit + 5 ℃, lower limit -5 ℃)	Maximum Temperature range 5 ℃Temperature: Adjust according to the temperature working interval of the equipment (upper limit + 5 ℃, lower limit -5 ℃)
Display resolution	Temperature: 0.01 ℃; Humidity: 0.1%; Time: 1min	Temperature: 0.01 ℃; Humidity: 0.1%; Time: 1min
Power-off memory	可设定断电恢复模式为：热起/冷起/停止
Boot appointment	可随意设定开机时间，打开电源后时间到机台自动运行
Temperature transducer	PT100 platinum resistor	PT100 platinum resistor
Curve recording	With battery-protected RAM, it can save the setting value, sampling value and sampling time of the device; the maximum recording time is 60 days (when the sampling period is 1.5min)	With battery-protected RAM, it can save the setting value, sampling value and sampling time of the device; the maximum recording time is 60 days (when the sampling period is 1.5min)
Software Operating Environment	IBM PC compatible machine, CPU above PII, memory above 128M, Simplified Chinese Windows2000 or Simplified Chinese WindowsXP operating system	IBM PC compatible machine, CPU above PII, memory above 128M, Simplified Chinese Windows2000 or Simplified Chinese WindowsXP operating system
Network connection	It can be connected to the Ethernet through professional software, remote control and remote assistance can be done through the network, and test data can be collected through the network, and multiple machines can be controlled at the same time	It can be connected to the Ethernet through professional software, remote control and remote assistance can be done through the network, and test data can be collected through the network, and multiple machines can be controlled at the same time
Set range	Maximum Temperature range 5 ℃Temperature: Adjust according to the temperature working interval of the equipment (upper limit + 5 ℃, lower limit -5 ℃)	Maximum Temperature range 5 ℃Temperature: Adjust according to the temperature working interval of the equipment (upper limit + 5 ℃, lower limit -5 ℃)
input	Platinum resistance/DC 1~ 5V input	Platinum resistance/DC 1~ 5V input
Additional features	Fault alarm and cause, processing prompt function, power-off protection function, Upper/Lower limit temperature protection function	Fault alarm and cause, processing prompt function, power-off protection function, Upper/Lower limit temperature protection function
Refrigeration system	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc
Refrigeration system	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc
Condenser	Water-cooled heat exchangerfinned tube heat exchangerStainless steel brazed plate heat exchanger	Water-cooled heat exchangerfinned tube heat exchangerStainless steel brazed plate heat exchanger
Condenser	Water-cooled heat exchangerfinned tube heat exchangerStainless steel brazed plate heat exchanger	Water-cooled heat exchangerfinned tube heat exchangerStainless steel brazed plate heat exchanger
Condenser	Water-cooled heat exchangerfinned tube heat exchangerStainless steel brazed plate heat exchanger	Water-cooled heat exchangerfinned tube heat exchangerStainless steel brazed plate heat exchanger
Throttle device	Thermal expansion valve, capillary tubing	Thermal expansion valve, capillary tubing
Refrigeration system	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc
refrigerant	Using environmentally friendly refrigerant R404A + R23 with ozone depletion index of 0	Using environmentally friendly refrigerant R404A + R23 with ozone depletion index of 0
Replenishment method	Three-stage Filter filtrate, pump lift automatic water supply, circulation filtrate recovery	Three-stage Filter filtrate, pump lift automatic water supply, circulation filtrate recovery
Dehumidification mode	Humidification mode, special dehumidification compressor to start dehumidification, P.I.D control humidification to achieve the required Humidity	Humidification mode, special dehumidification compressor to start dehumidification, P.I.D control humidification to achieve the required Humidity
Refrigeration system	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc	The laboratory adopts a set of binary duplex refrigeration system. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle. The heat exchange is realized by evaporative condenserImported cryogenic compressorControl system PLC (programmable logic Controller) automatically adjusts the operating conditions of the refrigerator, the compressor return air chill down circuit, and the energy pressure regulating valve according to the test conditionsCompressor overheating, overcurrent, overpressure protection, etc
Test chamber	Ultimate overtemperature, fan, motor overheating relay	Ultimate overtemperature, fan, motor overheating relay
Humidification system	Humidification heat pipe dry burning, abnormal water supply, abnormal drainage, abnormal water shortage	Humidification heat pipe dry burning, abnormal water supply, abnormal drainage, abnormal water shortage
Safety Devices	Leakage protection, overload and short circuit protection	Leakage protection, overload and short circuit protection
Environmental conditions	Ambient Temperature should be kept within 5 ℃~ + 35 ℃; Relative Humidity: ≤ 85%	Ambient Temperature should be kept within 5 ℃~ + 35 ℃; Relative Humidity: ≤ 85%
Humidification feed water	Water quality: tap water, equipped with three-stage Filter. Connecting pipe diameter: divided into tap water pipe roots. Water supply pressure: 0.1~ 0.4Mpa	Water quality: tap water, equipped with three-stage Filter. Connecting pipe diameter: divided into tap water pipe roots. Water supply pressure: 0.1~ 0.4Mpa
gas	No requirement	No requirement
Humidity resolution	0.1%RH	0.1%RH
Temperature deviation	±1.5℃	±1.5℃
Humidity Deviation	±2%R.H	±2%R.H
Temperature Uniformity	≤2℃	≤2℃
Humidity Uniformity	≤3%RH	≤3%RH
Temperature Fluctuation	±0.5℃	±0.5℃
Humidity stability	±2%R.H	±2%R.H
Cooling rate	+ 25 ℃ → -40 ℃ ≤ 60 min (no-load condition)	+ 25 ℃ → -40 ℃ ≤ 60 min (no-load condition)
Condensation method	water cooling	water cooling

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