YYS-250 Constant Temperature&Humidity Chamber(-40℃)

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I.Summary:

Instruments Name	Programmable constant temperature & humidity test chamber
Model No:	YYS-250
Internal studio dimensions(WHD)	460720720mm
Overall dimension(WHD)	110019001300mm
Instruments structure	Single-chamber vertical
Technical parameter	Temperature range		-40℃～+150℃
			Single stage refrigeration
	Temperature fluctuation		≤±0.5℃
	Temperature uniformity		≤2℃
	Cooling rate		0.7～1℃/min（average）
	Heating rate		3～5℃/min（average）
	Humidity range		20%-98%RH（Meet the double 85 test）
	Humidity uniformity		≤±2.0%R.H
	Humidity fluctuation		+2-3%RH
	Temperature and humidity correspondenceCurve diagram
Material quality	Outer chamber material		Electrostatic spray for cold rolled steel
	Interior material		SUS304 Stainless steel
	Thermal insulation material		Ultra fine glass insulation cotton 100mm
Heating system	heater		Stainless steel 316L finned heat dissipating heat pipe electric heater
			Control mode: PID control mode, using non-contact and other periodic pulse broadening SSR (solid state relay)
Controller	Basic information		TEMI-580 True Color Touch programmable Temperature and Humidity controller
			Program control 30 groups of 100 segments (the number of segments can be arbitrarily adjusted and allocated to each group)
	Mode of operation		Set value/program
	Setting mode		Manual input/remote input
	Set range		Temperature: -199℃ ~ +200℃
			Time: 0 ~ 9999 hours/minute/second
	Resolution ratio		Temperature: 0.01℃
			Humidity: 0.01%
			Time: 0.1S
	Input		PT100 platinum resistor
	Accessory function		Alarm display function (prompt fault cause)
			Upper and lower limit temperature alarm function
			Timing function, self-diagnosis function.
	Measurement data acquisition		PT100 platinum resistor
Component configuration	Refrigeration system		compressor	French original “Taikang” fully enclosed compressor unit
			Refrigeration mode	Single stage refrigeration
			Refrigerant	Environmental protection R-404A
			Filter	AIGLE (USA)
			condenser	“POSEL” brand
			Evaporator
			Expansion valve	Original Danfoss (Denmark)
	Air supply circulation system		Stainless steel fan to achieve forced circulation of air
			Sino-foreign joint venture “Heng Yi” differential motor
			Multi-wing wind wheel
			The air supply system is single circulation
	Window light		Philips
	Other configuration		Stainless Steel Removable Sample Holder 1 layer
			Test cable outlet Φ50mm hole 1 pcs
			Hollow conducting electric heating defrosting function glass observation window and lamp
			Bottom corner universal wheel
Security protection	Leakage protection
	“Rainbow”(Korea) overtemperature alarm protector
	Fast fuse
	Compressor high and low pressure protection, overheating, overcurrent protection
	Line fuses and fully sheathed terminals
Production standard	GB/2423.1 ；GB/2423.2； GB/2423.3；GB/2423.4;IEC 60068-2-1; BS EN 60068-3-6
Delivery Time	30 days after the payment arrived
	Use environment	Temperature: 5℃ ~ 35℃, relative humidity: ≤85%RH
	Site	1.Ground level, good ventilation, free of flammable, explosive, corrosive gas and dust2.There’s no source of strong electromagnetic radiation nearbyLeave proper maintenance space around the device
After-sales service	1.Equipment warranty period of one year, lifetime maintenance.One year warranty from the date of delivery (except for the damage caused by natural disasters, power anomalies, human improper use and improper maintenance, the company is completely free of charge).For services beyond the warranty period, a corresponding cost fee will be charged.2.In the use of equipment in the process of the problem to respond within 24 hours, and timely assign maintenance engineers, technical personnel to deal with the problem.
	When the supplier’s equipment breaks down after the warranty period, the supplier shall provide paid service.(Fee applicable)