Altitude Chamber

Aircraft and its components are subject to extreme pressure and climatic conditions during flights. These parameters have a significant influence on the functioning of individual components, and they must be monitored and measured for safety reasons. CME Altitude chamber allow for the testing of aerospace components in an environment with controlled pressure, temperature and humidity parameters. An altitude of 100,000 feet [10 mbar] can be simulated in the test space.

Overview

As rightly quoted “Good engineering is a perquisite for reliability”, a lot of detailing has gone in both the system designing and the component selection of the CME-AT series. These technologies require the utmost reliability of the components and systems on board, since human lives are often entrusted to them. Be it in refrigeration system comprising the semi hermetically sealed reciprocating compressor, high efficiency evaporator unit, in-built water-cooled condenser, on-Demand cooling, et all. are all carefully designed to offer the best reliability to the customer. The chamber can offer altitude ranges of up to 150,000 feet[1mbar] optionally as well. The Altitude chamber can also be customized as per the test requirements.

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Tech Spec

Model Selection table
		CATH CHAMBER
Models		AT-225-B	AT-560-B	AT-1000-B	AT-1500-B
Test Space Dimension (WXDXH)	mm	500 x 400 x 600	780 x 800 x 940	1000 x 1000 x 1000	1000 x 1500 x 1000
Test Space Dimension (WXDXH)	inch	20 X 16 X 24	31 x 31 x 37	39 x 39 x 39	39 x 59 x 39
Test Space Volume	Ltr / Cuft	225 / 8	560 / 20	1000 / 35.3	1500 / 53
Temperature Range*	(°C) (°F)	- 60 to +120 -76 to +248
Ramp rate**	(°C/min)	1/2/3/5
Altitude range	mbar Ft	Upto 10 [Default], 1 [Optional] Upto 100000 [Default], 150000 [Optional]
* Optional Temperature Range also available
**Customized ramp rates are also available
CATH - Combined Altitude, Temperature and humidity chamber

Controller

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

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.

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.

Digital Events

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

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

Power Resumption Modes

In case of a power failure, option of conditional restart based on temperature/time or continuous

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.

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