This new Qualmark HALT system with ESPEC cascade refrigeration eliminates the need for liquid nitrogen (LN2), making basic HALT testing possible for customers and locations where traditional HALT systems just aren’t feasible. Whether LN2 is too difficult or costly to attain and maintain, or just not possible, this is your answer. Likewise, this new system serves customers who want to save on LN2 by just using it as a boost during rapid thermal ramps, but can let the refrigeration take over for soak steps.

The Qualmark random shock/vibration table completes the system to create a combined environment needed for full HALT testing. This is a robust system brings together the proven, quality technologies from ESPEC and Qualmark product lines.

• Patented repetitive-shock, 6 DoF, vibration table
• Simultaneous excitation at multiple frequencies for testing complex assemblies
• PSD Management for easy maintenance

• User-friendly touch-screen operation with 6.5" active-matrix color display
• Three different constant mode settings can be saved for single-setting operation
• Store 40 programs, with up to 99 steps each (upload/download via USB)
• Adjustable trend-graph display with data download via USB
• Two time signal relays for automated on/off control of test devices/samples
• Pattern Manager Lite PC software for program editing and datalog viewing/exporting, to support USB functionality
• Product temperature control for improved temperature cycling rates and performance
• ESPEC Web Controller included for effective access to temperature and vibration data

• Stainless steel interior construction with rounded corners
• Stainless steel exterior with console on the front door
• Unique thermal break doorframe limits risk of exterior frosting
• Standard window with thin-film heaters and LED lighting
• One 4" diameter cable port centered in the left hand wall with two flexible plugs
• Casters with adjustable feet for leveling unit

• Three levels of overheat protection ensure safety, including an independent, user-set over/under limit
• Specimen relay for interlocking external devices to chamber power for safety
• Excellent serviceability through hinged doors and removable panels
• Main power circuit breaker with lockout feature
• ETL listed electrical panel conforming to UL 508A (optional CE mark for Europe)
• Dry air purge to reduce moisture inside the chamber
• Emergency stop switch

• High performance, reliable Copeland Scroll compressors (models without 'L' suffix are Discus type)
• New WRTC control method improves temperature ramping and increases energy efficiency
• Electronic expansion valve modulates refrigeration according to cooling demand

Model Number	Vibration Table	Interior Volume	Temperature Range	Humidity Control	Change Rate (heat/cool)	Repetitive Shock
EQGNZ27-12NWL2.5	Table size: 30" x 30" (762 x 762mm); 8 actuators	27 cu. ft.	-70 to 180°C	No	up to 12°C/min.	Vibration Acceleration: 5 - 75 gRMS (bare table)
EQGNZ27-15NW2.5	Table size: 30" x 30" (762 x 762mm); 8 actuators	27 cu. ft.	-70 to 180°C	No	up to 15°C/min.	Vibration Acceleration: 5 - 75 gRMS (bare table)
EQZ4-3NAL1.5	Table size: 18" x 18" (457 x 457mm); 4 actuators	4.1 cu. ft.	-70 to 180°C	No	up to 9°C/min.	Vibration Acceleration: 5 - 60 gRMS (bare table)
EQGNZ27-6NAL2.5	Table size: 30" x 30" (762 x 762mm); 8 actuators	27 cu. ft.	-70 to 180°C	No	up to 8°C/min.	Vibration Acceleration: 5 - 75 gRMS (bare table)