Proper maintenance of a Thermal Shock Chamber is essential to ensure its optimal performance, accuracy, and longevity. Regular upkeep helps prevent malfunctions, ensures reliable test results, and extends the lifespan of the equipment.

1. Routine Inspection

Visual Checks: Regularly inspect the chamber for any signs of wear, corrosion, or damage.
Seals and Gaskets: Check door seals and gaskets for cracks or deformation to maintain proper insulation and prevent leaks.
Transfer Mechanism: Ensure the specimen transfer system moves smoothly without obstructions or unusual noises.

2. Cleaning

Interior Cleaning: Keep the chamber interior free from dust, debris, and corrosion. Use mild, non-abrasive cleaning agents.
Cooling and Heating Elements: Remove dust or dirt from heating elements and cooling coils to ensure efficient operation.
Air Filters: Clean or replace air filters periodically to maintain airflow and temperature uniformity.

3. Calibration and Testing

Temperature Calibration: Regularly calibrate temperature sensors and controllers against standard reference instruments.
Cycle Verification: Verify the accuracy of temperature cycling profiles and transfer times.
Data Logging: Maintain records of calibration and maintenance activities for compliance and troubleshooting.

4. Mechanical and Electrical Checks

Lubrication: Lubricate moving parts, such as transfer arms and hinges, as per manufacturer recommendations.
Electrical Components: Inspect wiring, relays, and sensors for signs of wear or damage. Replace faulty components promptly.
Control Panel: Ensure the control interface is functioning correctly and buttons or touchscreens are responsive.

5. Preventive Maintenance Schedule

Frequency	Tasks
Weekly	Visual inspection, cleaning of interior and filters
Monthly	Calibration checks, mechanical inspections
Quarterly	Detailed electrical inspection, lubrication, transfer system check
Annually	Comprehensive calibration, part replacement as needed, system audit

Additional Tips:

Always follow the manufacturer's maintenance manual and guidelines.
Use genuine spare parts and accessories.
Keep detailed records of all maintenance activities for reference and compliance.
Train operators on proper usage and basic maintenance procedures.

Model	JQTS2-50	JQTS2-80	JQTS2-100	JQTS2-150	JQTS2-225	JQTS2-408
Inner size WDH(cm)	353240	504040	505040	655046	657050	858060
Outer size WDH(cm)	125160185	135170185	140185190	160190205	160230210	180250230
Capacityt(L)	50L	80L	100L	150L	225L	408L
Weight(kg) N.W	800	900	950	1050	1250	1450
Temp.Shock Range	A:-40℃～180℃ B:-55℃～180℃ C:-65℃～180℃
Shock type	1. High Temp.→Low Temp. 3. Normal Temp →High Temp. →Normal Temp. →Low Temp. 2. Low Temp →High Temp. 4. Normal Temp →High Temp. →Normal Temp. →Low Temp
High Temp. Chamber	+60°C~+200°C
Pre-Heating Time	(+20°C～200℃) <35 minutes
Low Temp.Chamber	(-40°C/-55°C/-65°C) ~ -10°C
Pre-cooling Time	(+20°C～-75℃ )< 60minutes
Temperature transfer time	‘－40℃/-55°C/-65℃～＋180℃ <5 second (Two Zone)
Recover time	Heat chamber Exposure 30min
	Cold chamber Exposure 30 min
	within 5～10min
Temp.fluctuation range	±0.5℃
Chamber material	Outer shell : standard 1.5mm electrolytic plate Baked electrostatic painting Inner shell : standard 1.2mm thick SUS#304 stainless steel plate (matt treatment )
Insulation material	Glass fibre wool + Rigid polyurethane foam
Controller	7'LCD colorful Chinese and English touch screen (10 inch optional ),Program or fix setting ,120sets programs ,1200steps USB ,RS232 /R485 interface ,mobile APP , computer connection remote control (optional network interface )
Control system	P.I.D+S.S.R+Temp control system of microcomputer balance
Cooling type	Semi-closed two-stage compressor (water cooled) Fully-closed two-stage compressor (air -cooled )
Refrigant	HFC-404a and HFC23 /HFC-R449A/HFC-507
Compressor	Fully closed French “Tecumseh “compressor Semi-closed German “Bock “/"Bitzer" comporessor
Safety protection device	Fuse free switch, compressor high and low voltage protection switch,Over-temperature potector,Over -current protector , Refrigerant high -voltage protection switch, fault alarm system, electronic sound light alarm device
Spare parts	Glass viewing window , two shelves , 2*￠50mm cable Ports ,Casters ,
Power Supply	AC/380V,50HZ,20～50A,

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