Espec Mechanical HALT Chambers (Non-Nitrogen)
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.
This system has an option for liquid nitrogen boost, by just using it during rapid thermal ramps, but can let the refrigeration take over for soak steps. The repetitive-shock table creates a combined environment needed for full HALT testing. This all-in-one system brings together the proven, quality technologies from ESPEC and Qualmark product lines. For better assurance of performance for the temperature cycling part of your application, ESPEC can provide a guaranteed performance calculation based on your submitted requirements.
The exclusive ESPEC P-300 programmer/control- ler brings energy savings, user-friendly operation, and expanded data access to our chambers. Tabs on the updated user interface allow faster access to any screen. Standard USB and optional Ethernet interfaces make programming and data acquisition much simpler. In addition, improved algorithms make operation more energy efficient, and temperature ramping faster, smoother and more repeatable.
6DOF repetitive-shock table
Simultaneous excitation at multiple frequencies for testing complex assemblies
Patented pneumatic hammer/table design is lubrication-free and valveless
Quiet operation without external cooling requirements
The table is field-adjustable for resetting to original PSD levels, ensuring consistent performance. (Adjustment included in our preventative maintenance agreement.)
Chamber Design
Stainless steel interior, painted exterior
High-velocity airflow for improved product temperature change rates.
Advanced chamber insulation combined with our low-noise hammers results in very quiet operation, even at maximum vibration levels.
ESPEC’s P-300 Programmer/Controller
User-friendly touch-screen operation with 6.5" active-matrix colour 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
HALT Chamber Specifications (Non-Nitrogen)
| Model Number | Vibration Table | Interior Volume | Temperature Range | Humidity Control | Change Rate (heat/cool) |
Repetitive Shock |
|---|---|---|---|---|---|---|
| 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) |
| 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) |
