Thermal Shock Chamber

The KTS series of the thermal shock chamber meets all of the major international test standards such as MIL-883H, MIL-202G -107G, JESD22-A104D, IEC 60068-2-14, JASO D014-4, EIAJ ED-2531A and JIS C 60068-2-14.

The thermal shock chamber has two zones namely the hot zone and the cold zone. The specimen is kept on the test basket, which is transferred between the hot & cold zones through a motorized system connected by a screw rod. It is primarily used to study the impact of the rapid change of temperature on the specimen. In real world scenarios, such rapid change in temperature causes cracking of the material, the mechanical failures and permanent change in electrical performance. It is therefore important to study and analyse such failures to design a better product in order to withstand such changing environmental conditions.

CME’s thermal shock chamber has recently undergone a series of technology upgrades to reduce the overall test time and to shorten the temperature recovery time while maintaining high uniformity. The result thus obtained shows consistent accuracy in temperature recovery and uniformity across multiple test cycles thereby improving the test reproducibility and reliability characteristics of the chamber. Inside the chamber, the hot and cold zones are sealed with specially designed gaskets to minimize leakage between the two zones. The Specially designed test basket of low thermal mass with a powerful temperature-conditioning unit enables the chamber to achieve faster recovery rates.

Thermal shock chamber can also be customized as per the test requirements.

Specification	KTS Model
	KTS 25-B2	KTS 64-B2	KTS 120-B2	KTS 340-B2
Test Basket Dimension (WXDXH)	250 x 250 x 400 [mm] 10 x 10 x 16 [In]	400 x400 x 400 [mm] 16 x 16 x 16 [In]	550 x 550 x 400 [mm] 22 x 22 x 16 [In]	700 x 700 x 700 [mm] 27.5 x 27.5 x 27.5 [In]
Test Basket Volume	25 Ltr 0.9 Cuft	64 Ltr 2.3 Cuft	120 Ltr 4.2 Cuft	340 Ltr 12 Cuft
Hot Zone Temperature Range	50°C to + 200°C 122°F to + 392°F
Cold Zone Temperature Range	50°C to - 70°C 122°F to - 94°F
Basket Transition	< 10 sec
Recovery Time	< 5 min

Communication

Ethernet

Ethernet capability to remotely monitor and control the chamber.

Web Server

Built-in web server allows remote view or control from any internet connected PC, tablet or smart phone

USB

USB Type-A host port to connect a keyboard or mouse or download CSV data via pen drive [max 2GB] USB Type-B data port for connection to PC for software upgrade and access memory card storage

thermal shock test chamber usb cmenvirosystems

NI Lab view

The communication which used is MODBUS RTU protocol, which is an international standard for communication in process instrumentation and automation. Necessary changes to be made in the user’s software to communicate this in MODBUS RTU universal protocol. This feature can be used manual mode only.

Hardware

Enhanced with modular controller integrating multi-zone PID control and data acquisition. SIMATIC programmable logic controller. Touch screen controller, PLC and other controller components are of a generic make with an OEM software. Free software upgrades up to one year.

Digital Events

1 digital output for switching test specimen via potential free contacts, load max. 24 VDC, 5A

Memory

SD card of 2GB memory will store all the test program data and also the diagnostic data. This card is accessible by USB and Ethernet.

Programming & Report Generation

Programs

99 independent programs can be stored with name and number. Each of these programs have segments which can be looped to a previous segment and repeated up to 999 cycles, creating almost unlimited number of segments The chamber can be operated in manual mode, where the set point can directly be changed in the home screen The ramp rate can be set as a value in °C/min or ramp time Graphical representation of the temperature program The time is logged only when the set valve is within the band.

Trend Graph

Real time trend graph for temperature set value, temperature process value, humidity set value and humidity process value. Options of zoom in/out, pan and individual plot selection

Safety & Security

Security

Multi level security of guest, user, admin and factory level users with individual password protection All settings can be reset to factory defaults using admin login

PID

6 zone based PID’s with auto recall of PID based on type of program, segment and zone can be set. Each of these PID’s can be set by using the auto tune feature or manually based on user’s requirements.

thermal shock test chamber pid cmenvirosystems

Process Mimic

Graphical representation of the working of the chamber, with live status of all the components, including the current temperature/humidity process values, compressor suction/discharge pressures and return gas temperature