1、 Performance and specification 、 System structure 、 Working principle

11、parts with the machine

1. 
   shelf rack made of stainless steel strips 1pc.
   
2. 
   a drain line.
   
3. 
   instruction manual, thermostat sheet. each one
   

12、 Fault instance:

Fault situation	reason	Handing method
Turn on the power but machine doesn’t work	power is not normal	check and send power again
	Controller no output	Check whether the controller PC board work
	control power insurance burn damage	Check the reason on replace the fuse
	The safety protection device does not work	Check safety precautions and hand reset
Not cooling or slow cooling	Refrigeration compressors are broken	Update or send to repair
	snow kind of leakage	Inform the company or ask for professional maintenance
	The air supply motor does not turn or reverse	Check the reason or update
	The electromagnetic switch of the compressor is broken	Check the reason or update
	The condenser is sticky with dust	use the high-pressure gas mouth to blown clean
	machine Poor heat dissipation	Installation location not good, relocation installation
The temperature can't reach or get out of control	Temperature overtemperature protection action	reset
	Temperature SSR broken	Check and replace
	Thermoelectric tube broken	Check and replace
	The temperature contactor broken	Check and replace
	Cryosystem failure	Inform the company or ask for professional maintenance
The humidity can't reach or get out of control	Humidity SSR damage	Check and replace
	Humidity heating tube broken	Check and replace
	Wet cloth absorbs water bad (hardening)	Check and replace
	The water table was too high or too lo	Check and replace

13、 Machine basic parameters

Model	DH-150
Inner dimensions W×H×D（mm）	500x500x600
Temperature range	-40C +150C
Humidity range	20%RH~98%RH
Stability	±0.5℃
Humidity	±2.5%RH
Uniformity	±1.0℃
Humidity	±1.0℃±2.0℃%RH
Warming time	20℃～100℃<40min
Cooling time	20℃～-20℃<60min
Cooling system	Original air-cooled closed compressor imported from Europe; fin evaporator caters as dehumidifier
Protection device	No fuse overload control insurance protection system. Equipping with compressor overheating, over-current, over-pressure,over-heated over-humidified , over-dried, over-temperature, water-lack alarming system
Controller Features	Using original imported temperature and humidity controller with touch interface , it owns 120 sets 1200 stages of program memory segment and can be repeated 999 cycles. While temperature and humidity can be controlled procedurally.
Heating / humidification system	heating: finned stainless steel air heating humidification: sheathed stainless steel electric steam generating mode
Power supply	220V AC±10% 50HZ