Specification sheet · VTC series (Vibration Thermal Chamber)
VTC-9 ECO HALT/HASS Chamber
Combined thermal and six-degree-of-freedom vibration chamber for HALT and HASS, with a 36 × 36 in vibration table. Designed, built and supported in Allegan, Michigan.
- vibration table
- 36 × 36 in
- temperature range
- −100 to +200 °C
- product change rate*
- 70 °C/min
- 6-DoF repetitive shock
- 10–10,000 Hz
- maximum vibration level
- 100 GRMS
- maximum load
- 700 lb
Thermal performance
- Temperature range
- −100 to +200 °C
- Product change rate*
- 70 °C/min, −65 to +100 °C
- Temperature control
- ±1 °C after stabilization; stabilization in under 2 minutes
- Cooling
- HighRate™ liquid nitrogen, direct atomization in the control plenum, proportional control
- Heating
- 99 kW nichrome wire heaters, zero-cross SCR control
- Thermocouples
- One for air (control), one for product response
Vibration
- Type
- Tri-axial 6-DoF repetitive shock, non-coherent broadband, 10–10,000 Hz
- Vibration level
- Up to 100 GRMS, unloaded table at 25–30 °C
- Energy distribution
- 90% of vibration energy in 10–4,000 Hz
- Repeatability
- ±1 GRMS 1 min after settling, from 5 to 75 GRMS
- Sound level
- At 10 GRMS, nominally 68 dBA at 1 m
- Vibration table
- 36 × 36 in (914 × 914 mm), ceramic-coated and insulated from its base
- Mounting inserts
- Stainless steel, 3/8-16 on a 4 × 4 in pattern or M10 on a 100 × 100 mm pattern
- Maximum load
- 700 lb (318 kg)
- Vibrators
- Pneumatic, LubeMist™ lubricated with an adjustable ball valve on each; SoftStart™ to minimize starting shock
Chamber
- Interior (W × D × H)
- 42 × 42 × 38 in (1,067 × 1,067 × 965 mm)
- Exterior (W × D × H)
- 68.25 × 61 × 98 in (1,734 × 1,549 × 2,489 mm)
- Weight
- 4,000 lb (1,814 kg)
- Doors
- Two manual doors: one front, one rear
- Windows
- Two heated multi-pane windows, 20 × 20 in, one in each door
- Ports
- Three 6 in and two 1 in ports for customer use
- Insulation
- Multilayer staggered insulation, for thermal and noise insulation
Utilities
- Electrical
- 480 V, 3-phase, 125 FLA
- Liquid nitrogen
- 1/2 in supply, 40–50 psig
- Compressed air
- 1 in supply, 120 psig (8.3 bar), 120 SCFM, clean and dry
- Exhaust
- Two 6 in exhaust ports, vented to outside
- Installation
- Unloading, rigging and utility connections are provided by the customer
Control and instrumentation
- Control
- Watlow controller with Hanse ChamberCore software: temperature, humidity and GRMS ramps in one profile over Ethernet
- ChamberDAQ
- 24 universal inputs on each Watlow F4T (thermocouple, RTD, mA, mV/V), with more F4Ts for more inputs, plus up to eight WebDAQ modules for 128 external thermocouple channels
- ChamberFFT (option)
- Vibration analysis on up to 16 IEPE accelerometer channels at 25,600 samples per second
- Accelerometer
- One accelerometer with cable and three-axis mounting block
Safety
- Door interlocks
- Opening a door shuts off system operation
- Emergency power off
- EPO shuts off system operation
- Over/under limit
- FM-approved, with its own sensor in the air stream
- Interlocks
- Heaters and LN2 interlocked to the fans; three-phase supply monitored for phase loss and balance
- Electrical code
- Built to NEC code with UL / CE marked components
Options
- Extended temperature — down to −150 °C and up to +400 °C, as an option or custom build.
- Humidity — direct water injection or a steam generator, 10 to 85% RH from 25 to 65 °C, with a capacitance sensor.
- Fixtures — designed for your assembly, with metric or inch hole patterns.
- More channels — specify at order; channels are far cheaper than a retrofit.
- Access ports — extra ports, 6 in or custom sizes, for cabling and powered functional test.
- Higher load capacity — available across the range.
- LN2 system — complete installation, piping and controls.
Warranty and support
- 3-year warranty on vibrators and vibration tables.
- 1-year equipment warranty from shipment: parts and labor for the first 90 days, then parts at no cost other than travel.
- Supported for the long term — including controller retrofits for older systems.