DELTI-Vac REV (DVR) apparatus presents a cost-effective and modern solution for R&D and quality assurance laboratories across the branch. Efficient metal heating block, LCD touch screen interface, precise digital vacuum sensors and gas-tight tubes are combined into standalone apparatus which can be connected to PC for online data streaming, evaluation and remote operation. The DVR was developed for All-in-One testing of high explosives, propellants, rocket fuels, primary explosives and pyrotechnics. DVR provides safe VST measurements of the latest precision level.
A cluster of multiple devices substitutes the outdated concept of controlling unit with connected heating blocks or a master block with connected slave blocks.
GENERAL TECHNICAL SPECIFICATIONS
| Tube temperature stability |
± 0.025 °C |
| Temperature range limit |
200 / 250 °C |
| Typical sample weight |
5 g |
| Typical VST tube volume |
25 ml |
| Typical test time |
40 - 48 hours |
| Typical initial vacuum level |
300 Pa |
| Block heating rate |
3.3 °C/min |
ADVANTAGES
| A standalone device with a touchscreen interface |
| Clustering of independent units - behaves as a multiblock system |
| Independent testing temperatures and time for all connected units |
| Aerogel insulation for the best heating efficiency |
| Precise data acquisition and recording of measured values |
| Variable and easy to use software |
| Overheating protection with an independent temperature sensor |
| Accurate temperature controlling |
| Active air cooling of inner sandwich structure |
| Additional top heat shield |
| External sensors for ambient temperature, pressure and humidity |
| Easy firmware updates via SD card |
| Calibration opened for local accredited laboratories |
| Connecting external units (block chiller, tube lift) |
| Ultimate variability of applications |
| Wide range of accessories for testing |
| Wide range of accessories for safety protection |
| Quartz glassware for high-temperature testing |
| Borosilicate tubes with extra-long ground joint and valve hole |
| High strength stainless steel tubes for preliminary testing |
MULTIFUNCTIONALITY
DVR is designed to provide unexceptional variability and allows testing according to all major stability standards. Typically followed standards are listed in the table below.
| Standard Methods |
Alternative Methods |
| Abel Heat Test |
Vacuum drying chamber |
| Methyl Violet Test |
Humidity and VOC content |
| 100° Test |
Volume of combustion gases |
| Weight Loss Test |
Water content in combustion gases |
| Bergmann-Junk Test 5A/B/C |
Safe and precise distillation |
| Artificial Ageing Treatment |
Alternative ageing procedures |
| Vacuum drying |
Detection of runaway tendencies |
| Vacuum furnace |
Polymer oxygen resistance |
| User-Defined Program |
Induction period / Explosion Temperature Slow & Large scale DTA |
