Atec Espec-Global-N Series - Manual (Page 4)

4
Performance
Temperature cycling up to 20 degrees
per minute
Global-N’s twenty different models allows you to
choose the size and performance best suited for
your test applications. Temperature cycling rates
from 5 to 20°C/min. are possible. Two different
ultimate low temperatures are available: -40°C or
-70°C.
Models EGNL & EGNX also control humidity, for
expanded testing options beyond temperature
cycling.
Global-N chambers are capable of meeting the
performance requirements of JEDEC, IEC, Mil-
Std, and other international environmental test
performance standards.
Get a performance evaluation to help
select your model
For better assurance of performance for your
temperature cycling application, ESPEC can pro-
vide a guaranteed performance calculation based
on your submitted requirements.
Please use these questions (at right) as a guide
to define your test plan. You can then give this
information to your local sales representative,
or submit at www.espec.com, for review by an
ESPEC engineer. A recommended model with
appropriate refrigeration size will be returned.
SYSTEM & PERFORMANCE OPTIONS
Low and Ultra-low Humidity - Extends •
the humidity control range for EGNL &
EGNX models.
Attached Air-cooled Condenser - For
•
applications where water-cooling isn’t
practical. The condenser is on top
of the chamber, adding 350mm (14
inches). Suitable for installation in
sites that are not air conditioned.
Product Temperature Control - See
•
next page for details.
Datalogging Choices - Via traditional •
chart recorders, paperless recorders,
Ethernet, or computer interface.
ECA Modification - Allows condition-
•
ing of remotely-located equipment that
cannot be placed inside the chamber.
Dry Air Purge - Keeps moisture in the
•
chamber extremely low by purging
with -40° dewpoint air. Compressed
air supply required.
Liquid Nitrogen Injection - Boosts
•
cooling rate.
Different Global-N models can heat and cool at different rates. Shown
above are change rates for EGNZ12 models, following IEC 60068 3-5
standard, with the sensor in the supply air.
Questions for performance evaluation request:
1. Chamber type
Desired size: 12 or 28 cu. ft.?
Local power: 50Hz or 60Hz?
Humidity control: Yes or No?
2. Your Sample
Sample description and type of material(s)
Total mass per test, including any racks or cabling
Heat output of samples, in watts, if powered during test
3. Your Test Plan
Test method, if a published standard (e.g. JEDEC JESD22-A104C)
Start temperature for cycling
End temperature for cycling
Ramp rate or time allowed between start and end temperatures
120 90 30 60 150 180
Cooling Rate
EGNZ12-7.5CWL: 15°C/m
EGNZ12-6CWL: 11°C/m
EGNZ12-4CWL: 5.5°C/m
Heating Rate
EGNZ12-7.5CWL: 15°C/m
EGNZ12-6CWL: 15°C/m
EGNZ12-4CWL: 7°C/m
-70
0
180
50
100
150
-50
Time, minutes
Air Temperature, °C
Other options:
Viewing window with LED lighting •
(maximum 150°C operation)
Inner glass door with operation ports
•
Additional shelves, 45 kg (100 lb.) •
loading
Cable ports with flexible silicone plug,
•
50, 100, or 150mm diameters
Humidity water filter
•
Emergency stop button •