Temperature & Humidity Chambers

The PAC series of temperature and humidity chambers offers an excellent option for conducting cyclic tests involving low and high temperatures as well as humidity. These chambers are constructed with the highest quality and reliability, ensuring they can meet the rigorous testing requirements of various international standards such as ASTM, IEC, MIL, DIN, and more.

Overview

CME offers testing services to assess the impact of temperature and humidity on your products' properties, functionality, and lifespan. These tests are reproducible, certified, and conducted under accelerated conditions.

Designed and developed by CME's global R&D team, the chambers are engineered with the latest simulation technology to provide customers with an unparalleled testing experience. The highly responsive touchscreen controller (Envicom Graphite Series) used in these chambers is equipped with features such as Chamber Analytics, On-demand cooling, on-screen diagnostics, and safety alarms. It also includes networking ports such as Ethernet, RS 232, RS 485, and a 2GB SD card for test data storage. Additionally, the chambers can be integrated with third-party software such as NI/LabVIEW.

One of the major advantages of CME chambers is their high level of customization flexibility. While every test follows a set of procedures outlined by standards such as ASTM, IEC, MIL, and others, there are instances where standard temperature & humidity chambers may not be sufficient for a specific test requirement. Recognizing this industry need, our engineers offer the highest level of customization, including design modifications, high-performance ramp rates, and integration with other applications such as temperature & humidity chambers with UTM integration and temperature & humidity chambers with Vibration Integration.

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Tech Spec

Models

PAC 120

PAC 225

PAC 380

PAC 540

PAC 1000

PAC 1500

Test Space

Dimension
(WXDXH)

500 x 400 x 600

500 x 600 x 750

600 x 740 x 840

750 x 800 x 900

1000 x 1000 x 1000

1000 x 1500 x 1000

inch

20 X 16 X 24

20 x 24 x 30

24 x 29 x 33

30 x 32 x 35

39 x 39 x 39

39 x 59 x 39

Test Space Volume

Ltr / Cuft

120 / 4.2

225 / 8

380 / 13.4

540 / 19

1000 / 35

1500 / 53

Temperature Range

(°C)
(°F)

- 40 to +180
-40 to +356

- 70 to +180
-94 to +356

- 40 to +180
-40 to +356

- 70 to +180
-94 to +356

- 40 to +180
-40 to +356

- 70 to +180
-94 to +356

- 40 to +180
-40 to +356

- 70 to +180
-94 to +356

- 40 to +180
-40 to +356

- 70 to +180
-94 to +356

- 40 to +180
-40 to +356

- 70 to +180
-94 to +356

Ramp rate**

(°C/min)

3/5/6/7/8/10/12/15/20 as per IEC 60068-3-5

**Customized ramp rates are also available

Controller

Communication

Ethernet

Ethernet capability to remotely monitor and control the chamber.

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

temperature and humidity chamber usb cmenvirosystems

Web Server

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

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

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.

temperature and humidity 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