DataTrap II™ Operations Manual - Edition 5.4
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2.1 Background
The DataTrap II™ Data/VOD Recorder is a portable, 8 channel, high speed, high resolution, Data Recorder. The DataTrap II™ Data/VOD
Recorder can be upgraded easily and inexpensively to record continuous VOD of explosives. The VOD Upgrade provides the
DataTrap II™ Data/VOD Recorder with the unparalleled ability to record high resolution VODs of explosives and simultaneously record
transient events such as blast vibrations, explosion pressures, air blast, etc at high speeds and high resolutions.
The DAS™ Data Acquisition Suite allows the Operator to analyze VOD traces and convert DC voltage signals recorded by the
DataTrap II™ Data/VOD Recorder into the desired engineering units for analysis and presentation. The Software is used to program
the recording parameters of the DataTrap II™ Data/VOD Recorder, and to: retrieve, display, analyze, print and export VOD and data
from other types of gauges. The software runs in Windows® XP and above (including Windows® 8). This facilitates extremely fast data
handling, and the ability to copy and paste DataTrap II™ Data/VOD Recorder graphs into any word processors and/or spreadsheets
running under the Windows®.
The main features of the DataTrap II™ Data/VOD Recorder for Data recording are:
• Eight channels capable of recording at up to 10 MHz (10 million data points/sec). This speed provides a time resolution of one data
point for every 0.1 microseconds.
• A large, circular, digital memory of 128 MB (64 million data points) to store the recorded data in the DataTrap II™ Data/VOD
Recorder. This allows the DataTrap II™ Data/VOD Recorder to record for relatively long periods (6 seconds) on one channel when
recording at a rate of 10 MHz. The memory can be upgraded easily and inexpensively to provide 12 or 25 seconds for a total
memory of 256 MB or 512 MB (128 or 256 million data points). Contact MREL for DataTrap II™ Data/VOD Recorder Memory
Upgrade information.
• The capability to store up to 32 events in its permanent (non-volatile) memory before having to download the recorded data to a
computer.
• The data is downloaded to any personal computer (PC) through the USB 2.0 port. Downloading takes less than 4 minutes.
2.2 Safety Considerations
The DataTrap II™ Data/VOD Recorder is an easy and safe instrument to operate. However, one should be aware of the inherent risk
associated with explosive’s handling and familiar with working in blasting environments. For this reason, it is always recommended that
knowledgeable personnel, experienced in handling explosives and familiar with blasting procedures, operate the DataTrap II™ Data/
VOD Recorder when testing explosives. The standard rules of safety used with explosives should apply when monitoring VODs or other
explosive parameters.
When recording VODs (if the DataTrap II™ Data/VOD Recorder has the VOD Upgrade), the DataTrap II™ Data/VOD Recorder outputs
a low voltage (less than 8 VDC) and an extremely low current (less than 50 mA) to the probes within the explosives from the channel
This Chapter provides an introduction to the DataTrap II™ Data/VOD Recorder.
Overview
STOP
Persons not trained and/or authorized to handle explosives should not attempt to utilize the DataTrap II™ for
monitoring explosive properties.
