HUDA QT-E702-408K40 and Factory NBC-408L-40 compare

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Model selection comparator If you have any questions, please click below Service	HUDA QT-E702-408K40 Programmable Humidity Chamber 23280.0 RMB China Detail	Factory NBC-408L-40 Programmable Constant Temperature & Humidity Test Chamber 22770.0 RMB China Detail

Model comparison

Min-TEMP	-40℃	-40℃
Max-TEMP	＞100℃	＞100℃
Min-RH	≤20%RH	≤20%RH
Max-humidity	98% RH	98% RH
Volume	≤500L	≤500L
TEMP fluctuation	±0.5℃	±0.5℃ ±1℃
Humidity deviation	±2%	±1% ±1.5% ±2%

Parameter comparison

Interior Volume	408L
Temperature range	-40~150℃	-40~150℃
Temperature Resolution	0.01℃
Temperature Fluctuation	≤±0.5℃	±0.5-1℃
Temperature Uniformity	±2℃	±1.5-2℃
Humidity control range	20~98%R.H
Humidity Deviation	±2%R.H	±1~2%
Humidity stability	±2%R.H
Humidity Uniformity	±3%R.H	±1-3.0%R.H
Working time
Power supply
Interior size	600850800mm	800600850mm
Dimensions	880mm×1780mm×1720mm
Shelf (std.)
Temperature deviation	≤±2℃
Humidity resolution	0.1%R.H
Temperature control Accuracy	±0.01℃
Humidity Control Accuracy	±0.1%RH
Heating rate	≧3℃/min	3 ℃/min nonlinear no-load
Cooling time	≧1℃/min
Refrigeration system	1 imported French Taikang fully enclosed compressorSingle stage refrigeration
refrigerant	Environmentally friendly refrigerant R404
Refrigeration system	1 imported French Taikang fully enclosed compressorSingle stage refrigeration
Wind circulation	Centrifugal fan with forced circulation
Condenser	finned tube heat exchangerAir-cooled scale condenser, chilled down fan
Condensation method	air cooling
Condenser	finned tube heat exchangerAir-cooled scale condenser, chilled down fan
Humidification system	Stainless steel humidifier
Heating system	Nickel chromium alloy stainless steel heating device
Water supply system	Front-mounted water supply tank, fully automatic water supply system
Controller	Taiwan, China Youyi Controller
Setup method	Chinese/English interface, touch input
Operation mode	Program method/fixed value method
Set range	Maximum Temperature range 5 ℃
Display resolution	Temperature: 0.01 ℃; Time: 0.1min
Power-off memory function	The power failure recovery mode can be set as: hot start/cold start/stop
input	Platinum resistance
Storage function	Standard configuration2G SD卡记录试验资料曲线，可上传及下载资料，可扩充存储量
Safety Devices	Overall equipment overtemperature, fan overheating protection, overall equipment underphase/reverse phase, refrigeration system overload, refrigeration unit overpressure, overall equipment Timer, leakage, operation instructions, automatic shutdown after fault alarm, etc
Software Operating Environment	IBM PC compatible machine, CPU above PII, memory above 128M, Simplified Chinese Windows2000 or Simplified Chinese WindowsXP operating system
Enclosure Material	Cold rolled steel plate (1.0mm thick)	Mirror stainless steel plate (SUS #304)
Inner box material	SUS304 #stainless steel plate (1.0mm thick)	Mirror stainless steel plate (SUS #304)
Thermal insulation material	100mm polyurethane rigid foam + 100mm high density fiberglass cotton
Weight	385kg	≈308KG
Rated current	18A
Rated power	9kw
Power	380V
Test hole diameter	100mm
program amount	Maximum 120 groups, 1 program can be combined from 1 to 99 segments, Capacity: 1200 segments
Communication interface	1. R232/485 communication 2. Can display Linear dispersion, data acquisition 3. Can be used as monitoring and remote Control system

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