MREL DATA TRAP II User manual

MREL GROUP OF COMPANIES LIMITED
1555 Sydenham Road Kingston, Ontario K7L 4V4 Canada
T: [phone] F: [phone] E: [email protected] www.mrel.com
Operations Manual
Edition 5.4

DataTrap II™ Operations Manual - Edition 5.4
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Copyright Information
MREL Group of Companies Limited (MREL) warrants that the product is free from Manufacturer’s defects for a period of one (1) year from
the date of shipment to the Customer. This Warranty covers all parts and labour.
MREL does not warrant that the product will meet the Customer’s requirements, or that it will operate in the combinations which may be
selected by the Customer.
MREL does not and cannot warrant the performance or results that may be obtained by using the product. Accordingly, the product and its
documentation are sold “as is” without warranty as to their performance, merchantability or fitness for any particular purpose. The Customer
assumes the entire risk as to the results and performance of the product.
MREL is committed to product innovation; accordingly product may undergo specification improvements without notice. Copyright ©
2017 MREL Group of Companies Limited. DataTrap II™ Data/VOD Recorder, DataTrap II™ Data/VOD Recorder, Logo, and MREL
Logo are trademarks or registered trademarks of MREL Group of Companies Limited. Windows
® is a registered trademark of Microsoft
Corporation.
© Copyright 2017, MREL Group of Companies Limited. This Operations Manual supersedes any earlier editions. All Rights Reserved.
Reproduction or adaptation of any part of this documentation or Software without written permission of the Copyright owner is unlawful.
Publication History
Edition 5.0, April 2014
This version of the Manual
Edition 4.0, March 2014
Edition 3.0, July 2013
Edition 2.2, March 2009
Edition 2.1, January 2009

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Table of Contents
Chapter 1: Getting Started 1
1.1 Ensuring That All DataTrap II™ Hardware Has Been Received 2
1.2 Installing The DataTrap II™ Advanced Analytical Software 2
Chapter 2: Introduction 3
2.1 Background 4
2.2 Safety Considerations 4
2.3 DC Signal Recording Applications of the DataTrap II™ 5
2.4 VOD Recording Applications of the DataTrap II™ VOD Upgrade 5
2.4.1 Testing of Explosive Samples 5
2.2.4 Testing of Explosives In Blastholes 5
Chapter 3: Hardware 7
3.1 Hardware Components 8
3.1.1 DataTrap II™ Data/VOD Recorder 8
3.1.2 Battery Charger 13
3.1.3 USB Communications Cable 13
3.1.4 BNC Adapters 13
3.1.5 Daisy Chain Cable 14
3.2 LED Display 14
3.3 DataTrap II™ Internal Rechargeable Battery 16
3.4 Testing The DataTrap II™ Power Status 16
3.5 Recharging the DataTrap II™ Data/VOD Recorder 16
3.5.1 Recharging the DataTrap II™ with the 12V Adapter 17
3.6 Long Term Storage Considerations 17
3.7 VOD Resistance Probes... 18
3.7.1 VOD ProbeRod 18
3.7.2 VOD ProbeCable 18
3.8 DataTrap II™ Technical Specifications 19
Chapter 4: Memory And Triggering 21
4.1 Information on Memory and Triggering 22
4.1.1 Memory 22
4.1.2 Triggering 22
Chapter 5: Recording VOD And Hole/Deck Delay Times 27
5.1 Safety Considerations For Selecting An Explosive Testing Site 28
5.2 The Resistance Wire Technique For Measuring VOD 28
5.3 Installing Proberods For Testing Samples Of Explosives 29
5.4 Installing Probecable For Testing Explosives In Blastholes 31

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5.4.1 Preparation Of Probecable For Single Blasthole Recording 31
5.4.2 Preparation Of Probecable For Multiple Blasthole Recording 33
5.5 Probecable And Coaxial Cable Protection 34
5.6 DataTrap II™ Setup Procedure For VOD Measurements 36
5.7 Probe Resistance Out Of Range 38
5.8 Utilizing The External Trigger 39
Chapter 6: Recording Voltage Signals From Gauges 41
6.1 Introduction To Recording DC Voltage Signals 42
6.2 Connecting Gauges To The DataTrap II™ Data/VOD Recorder 42
6.3 Signal Cable Protection 43
6.4 DataTrap II™ Setup Procedure For Recording Voltage Signals 44
6.5 Utilizing The External Trigger 45
Chapter 7: Strain Gauge Upgrade 47
7.1 Introduction 48
7.2 Ensuring That All Components Hardware Have Been Received 48
7.3 Hardware Components 50
7.3.1 DataTrap II™ Strain Upgrade 50
7.3.2 DataTrap II™ Strain Signal & Power Cable (20m) 50
7.3.3 DataTrap II™ Strain Signal & Power Cable (100m) 50
7.4 Details of Items Required but Not Supplied 51
7.4.1 Strain Gauges 51
7.4.2 External Trigger 51
7.5 Installation Of Software 51
7.6 Preparing The DataTrap II™ For A Strain Gauge Test 51
7.7 Field Setup Of The DataTrap II™ Strain Gauge System 51
7.8 Running A Strain Gauge Test 52
7.9 Downloading A Strain Gauge Test 52
Chapter 8: Contacting MREL for Technical Support 53
8.1 Contacting MREL 54

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Chapter 1
Getting Started

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Photographs of these hardware components are contained in Section 3.1.
1. DataTrap II™ Data/VOD Recorder.
2. Universal DataTrap II™ Battery Charger that is labeled 100-240 VAC.
3. Communications Cable - USB cable.
4. BNC Adapters x 10.
5. DAS™ Data Acquisition Suite Operations Software and Manual on USB.
6. DataTrap II™ Operations Manual.
1.1 Ensuring That All DataTrap II™ Hardware Has Been Received
All of the steps detailed in this Chapter should be completed before the Operator goes into the
field to conduct a VOD test:
1. Ensure that all DataTrap II™ components have been received and are available.
2. Install the DAS™ Data Acquisition Suite Software on the Operator’s computer.
3. Ensure that the Operator’s computer and DataTrap II™ are able to communicate with
each other.
4. Program the DataTrap II™’s internal Recording Parameters using the DAS™ Data Acquisition
Suite Software.
Refer to the DAS™ Data Acquisition Suite Manual for installation procedure.
Overview
1.2 Installing The DAS™ Data Acquisition Suite Software

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Chapter 2
Introduction

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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.

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connectors on the DataTrap II™ Data/VOD Recorder. This low excitation signal ensures that the DataTrap II™ Data/VOD Recorder will not
prematurely initiate explosives and/or detonators. When measuring DC signals, the DataTrap II™ Data/VOD Recorders channels do not
output any excitation voltage or signal.
Standard (and common sense) rules apply when it comes to the presence of electrical storms near the testing area. Due to the inherent
hazards associated with blasting during these storms, in addition to the possibility of electrical interference causing false trigger signals
to the DataTrap II™ Data/VOD Recorder, it is recommended to immediately suspend all blasting activities and evacuate the area. This is
standard policy at most blasting operations.
2.3 DC Signal Recording Applications of the DataTrap II™
Data/VOD Recorder
As previously mentioned, the DataTrap II™ Data/VOD Recorder has the ability to function as a digital oscilloscope to record DC voltage
signals from a wide variety of commercially available gauges. Typical applications of the DataTrap II™ Data/VOD Recorder when used
as a voltage recorder include:
• Measurement of detonation pressure using calibrated PVDF (polyvinylidene fluoride) gauges.
• Measurement of air blast over-pressures using commercially available air blast pressure transducers.
• Measurement of cross-blasthole pressures using carbon composition resistors and/or commercially available tourmaline gauges.
• Measurement of temperatures using thermocouples.
• Measurement of strains using strain gauges.
• Measurement of any phenomena that can be instrumented with gauges producing DC voltage signals in the range from -10 to +10
volts.
2.4 VOD Recording Applications of the DataTrap II™ Data/
VOD Recorder With VOD Upgrade
If the DataTrap II™ Data/VOD Recorder VOD Upgrade has been installed, VOD can be recorded or DC voltage and VOD can be
recorded simultaneously. When used as a VOD recorder, the main applications of the DataTrap II™ Data/VOD Recorder include:
2.4.1 Testing of Explosive Samples
• Test the performance of explosives against the quality control standards set by the manufacturers.
• Measure the continuous VOD in any charge diameter under confined or unconfined conditions.
• Determine the critical diameter and critical density of an explosive charge.
• Determine the gap sensitivity of explosives.
• Measure the timing accuracy of detonators.
• Measure the continuous VOD of primers/boosters.
• Determine the minimum booster size for any explosive by measuring run-up velocities.
2.4.2 Testing of Explosives In Blastholes
• Measure the continuous VOD in any hole diameter, wet or dry holes, and in any type of rock.
• Measure the continuous VOD in multiple holes per blast per channel.
• Since the DataTrap II™ Data/VOD Recorder has 8 channels, it can record 8 holes firing simultaneously.

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• Determine whether full detonation, low order detonation or failure occurred, and where in the explosive column it happened.
• Check VODs against manufacturers’ specifications in full scale blasting environments.
• Determine the minimum booster size for any explosive by measuring run-up velocities in full scale blasting environments.
• Measure the timing accuracy of detonators in full scale blasting environments.
• Measure the effects of water, drill cuttings, and rocks, etc trapped within the explosive mass.
• Determine the length of explosive column to use in decking operations to evaluate the effect of stemming and drill cutting dilution,
water pick-up, etc on the explosive run-up requirements.

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Chapter 3
Hardware

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3.1 Hardware Components
This Chapter describes all of the hardware components provided with the DataTrap II™
Data/VOD Recorder.
The hardware components of the DataTrap II™ Data/VOD Recorder System include the DataTrap II™ Data/VOD Recorder, a Battery
Charger, a USB Communications Cable and ten (10) BNC Adapters. Also included with the DataTrap II™ Data/VOD Recorder System are
the DataTrap II™ Data/VOD Recorder Operations Manual and the DAS™ Data Acquisition Suite Software. A brief description of each of
the hardware components is in the following sections.
3.1.1 DataTrap II™ Data/VOD Recorder
The DataTrap II™ Data/VOD Recorder contains electronic circuitry and an internal rechargeable battery within a protective plastic
case measuring approximately 28 x 25 x 18 cm (11 x 10 x 7 in.) and weighing 4 kg (8.8 lbs). The protective case prevents damage
from water, sand, snow, dust and similar harsh weather conditions. As well, the case offers resistance to high temperatures, shocks and
vibrations. The DataTrap II™ Data/VOD Recorders top panel is shown below.
MAIN CONTROL PANEL
POWER Button:
The POWER button is used to provide power to the DataTrap II™ Data/VOD Recorder. To turn the
DataTrap II™ Data/VOD Recorder on or off, press and hold the POWER button for 2 seconds. If the
DataTrap II™ Data/VOD Recorder is acquiring or saving data, it will ignore a request to power off.
The operator can force power off by pressing and holding POWER and INFO for 4 seconds. This
will interrupt any activity the DataTrap II™ Data/VOD Recorder is carrying out. If the operator
needs to stop a test while acquiring data, they should use the STOP button instead.
INFO Button:
The INFO shows the battery level and the current date/time on the Display.
Holding it down will display Test Nof Mwhere Mis the number of tests set
up and Nis the number of tests that have been run (from 0to M). If Nand M
are equal, the DataTrap II™ Data/VOD Recorder memory is full and no more
tests can be run.
Overview

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POWER Button
INFO Button
STATUS Indicator
ESC Button
UP ARROW Button
NEXT TEST Button
STOP Button
TRIG’D/Out of Range
Indicators
ENTER Button
START Button and Indicator
DOWN ARROW Button
LED Display

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STATUS Indicator:
In Active mode, the light is illuminated, indicating that the DataTrap II™ Data/VOD Recorder is ready for the Operator to press the START
button. When the START button is pressed, the DataTrap II™ Data/VOD Recorder begins to monitor the event to be recorded while
awaiting a trigger signal.
In Stand-by mode, the light flashes slowly, indicating that the DataTrap II™ Data/VOD Recorder has finished collecting and storing
data. In Stand-by mode, the DataTrap II™ Data/VOD Recorder is waiting for the Operator to either switch the DataTrap II™ Data/VOD
Recorder power OFF; press the NEXT TEST button (to go to Active mode); or download the data to a computer.
In Communications mode, the light flashes quickly, indicating that the DataTrap II™ Data/VOD Recorders USB communications port is
connected to a computer, through the Communications Cable, for setting the DataTrap II™ Data/VOD Recorder Recording Parameters and
for transferring data to the computer and a communication is in progress.
Out Of Range (TRIG’D) Indicators
If NEXT has been pressed, these show if a channel is out of range (left light = below minimum, right light = above maximum). You will be
prevented from pressing START if one of the lights is on. Check for shorted or open connections. You can override this by holding down
the START button for 5 seconds.
If START has been pressed, the left light for a channel shows that it has been triggered, the right hand light shows that it has used up all
the time allocated for that channel. If the lights are blinking, the entire test is over. The test can be ended manually by pressing STOP. To
make the lights stop blinking, press STOP.
ESC Button, ENTER Button, UP ARROW Button and DOWN ARROW Button
The 4 buttons ENTER, ESC, (UP) and (DOWN) are used to view and adjust test settings. The menu is started by pressing ENTER, then
using the UP and DOWN buttons to choose an option. Once the option is chosen, press ENTER to choose that option, which may take an
action or may go to a deeper level into the menu. Press ESC to move up a level in the menu. Pressing ESC repeatedly will eventually take
the operator back to the original menu. The menu structure is discussed in more detail in Section 3.2.
NEXT TEST Button:
The NEXT TEST button is used to change the DataTrap II™ Data/VOD Recorders mode from Stand-by to Active. When in Active mode, the
DataTrap II™ Data/VOD Recorder waits for the Operator to press the START button to instruct the DataTrap II™ Data/VOD Recorder to
await a trigger signal. The operator can press ESC to go back to Stand-by mode.
STOP Button:
The STOP button is particularly useful when the DataTrap II™ Data/VOD Recorder has been set at a relatively slow sampling rate. Once
the Operator is satisfied that the required data has been recorded the STOP button can be pressed. This stops the recording, saves the
data recorded up to that point then reverts to Stand-by mode. This allows the Operator to avoid having to wait for the full recording time.
START Button and Indicator:
The START button instructs the DataTrap II™ Data/VOD Recorder to wait for a trigger signal to occur. When the START button is pressed
the START light illuminates.
LED Display:
There is a two-line Display to show the current settings of the DataTrap II™ Data/VOD Recorder and the number of tests. The Display is
also used to access a menu to set up the DataTrap II™ Data/VOD Recorder.

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BACK PANEL
The back of the DataTrap II™ Data/VOD Recorder has a variety of input and output ports that are described below:
TRIG OUT Connector:
Signal on this connector becomes active (TTL high level) for several seconds when the DataTrap II™ Data/VOD Recorder has been
triggered.
TRIG IN Connector:
BNC connector for the trigger wire, if external triggering is used.
DC OUT Connector:
It can be used to supply 10 VDC as an excitation source for other types of gauges.
DC IN Connector
DC OUT Connector
TRIG IN Connector
TRIG OUT Connector
SYNC OUT Connector
SYNC IN Connector
USB Connector
BNC INPUT Connectors

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DC IN Connector:
Used to connect the DataTrap II™ Data/VOD Recorder to the Battery Charger to recharge the DataTrap II™ Data/VOD Recorder internal
battery, and to operate the DataTrap II™ Data/VOD Recorder from AC mains power.
USB Connector:
The USB port is used to connect the Communications Cable to the DataTrap II™ Data/VOD Recorder. The other end of the Communications
Cable is connected to a USB port of the computer. A USB 2.0 port is recommended. USB 1.1 can be used, but downloading data is much
slower. Be careful NOT to plug the Power Cable into the USB port.
SYNC IN and OUT Connectors:
The SYNC in and out ports are used to synchronize the time codes of several DataTrap II™ Data/VOD Recorder units working together.
If synchronization is required to be used with multiple units, contact MREL for instructions with the software required.
BNC INPUT Connectors:
BNC connectors for connecting DC gauges or VOD probes (if VOD Upgrade is present) to inputs of channels to 8. The operator can check
which channels will be active in the next test by using the display menu.
Black Vent
TRIG’D Indicator

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FRONT PANEL
Black Vent:
The black Vent on the front of the DataTrap II™ Data/VOD Recorder is an automatic pressure relief valve. When transporting the DataTrap
II™ Data/VOD Recorder as by air, this valve allows pressure equalization upon landing. At high altitudes the internal pressure of the
DataTrap II™ Data/VOD Recorder may drop, causing a negative air pressure at ground elevation which makes the lid very difficult to
open without this pressure equalization valve.
TRIG`D Indicator:
The TRIG’D indicator light on the front of the DataTrap II™ Data/VOD Recorder will illuminate when at least one channel has been
triggered. It will remain illuminated during collection of the data, which in turn depends on the recording rate selected for the test. The
TRIG’D light flashes rapidly while the data is being stored in the DataTrap II™ Data/VOD Recorders non-volatile memory. The TRIG’D light
flashes slowly once all data from the test has been stored in the DataTrap II™ Data/VOD Recorders memory. Otherwise, the light will
remains off.
3.1.2 Battery Charger
The Battery Charger is used to charge the DataTrap II™ Data/VOD Recorders internal
rechargeable battery, and it can be used to operate the DataTrap II™ Data/VOD Recorder
from AC mains. It is Universal (100 – 240 VAC) adaptor.
3.1.3 USB Communications Cable
The Communications Cable is provided to connect the DataTrap II™ Data/VOD Recorder to a Personal
Computer for programming the recording parameters of the DataTrap II™ Data/VOD Recorder and for
downloading of the recorded data. The Communications Cable is connected between the USB port on
the back panel of the DataTrap II™ Data/VOD Recorder and a USB port of the computer.
3.1.4 BNC Adapters
Ten (10) BNC Adapters are provided to facilitate easy connection between the channel input
connectors on the DataTrap II™ Data/VOD Recorder to the coaxial cable (preferably RG-58/U)
leading to the probes, and the external trigger wire, respectively.

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3.1.5 Daisy Chain Cable
This allows up to 7 DataTrap II™ Data/VOD Recorder units to be synchronised. To set this up,
use the LED menu to set one of the DataTrap II™ Data/VOD Recorder unit to be “Master” and
the others to be “Slave”. (Menu-Services-Synchronisation-Off/Master/Slave) For the proper
software to utilize this feature, contact MREL for further instructions.
3.2 LED Display
The DataTrap II™ Data/VOD Recorder menu allows the operator to view information about the DataTrap II™ Data/VOD Recorder and
also to change some of the settings. It is started by pressing the ENTER button after turning on the DataTrap II™ Data/VOD Recorder. This
gives the above output: “DATATRAP II Services Config”.
Using the menu has common pattern as follows:
1. Press ENTER.
2. Press the UP and DOWN arrows one or more times to choose an option.
3. When the option is reached, the operator may only want to view the current value of the setting. In this case, ESC is pressed to exit
and go back to the previous group of options.
4. If the Operator presses ENTER, this processes the current option. Processing the current option will do one of the following:
• Take an immediate action, such as changing the voltage range for a channel
• Act if the user confirms the choice, such as erasing the last test.
• Move down to a lower menu level which is read-only, such as the length of time for a channel in a test. After a choice of this
type, the user can only press ESC to go back to the previous choice.
• Move down to a lower menu level which allows further choices using the UP and DOWN arrows.
Initially, the options are Services and Config. The complete list of options are:
Services
- Chooses Erase last test or Erase all tests
Erase last test
Press to confirm this
Erase All Tests
Press to confirm this
Synchronization : Off / Master / Slave
Timed Start : Off / Day-Time / Activate
Auto Advance : Off / 1 sec / 5 sec / 10 sec / 30 sec / 1 m / 2 m / 5 m / 10 m / … 240 m
Temperature : (read only) Shows internal and battery temperature
Maintain Battery : Fully discharges the battery to recalibrate the battery % indicator. (Tip: discharge overnight, then charge the next
day)
Version Info : (Read only) This may be helpful for troubleshooting. PM is the Power Management (battery charging and measuring)
firmware, MD is the main firmware.
Config
Configuration Test N (where N = a test number from 1 to 32)
- Chooses the test number

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Enter – Goes to Test Settings
Chooses Edit, Summary, or Delete
Summary – Shows the number of channels active and the number of points assigned for that test.
Delete – Deletes the currently viewed test
Edit – Goes to Channel Settings
Chooses which Channel to edit.
: means that a channel is active
- : means that a channel is not monitored
Enter – Goes to the settings for the current channel
Range -
Chooses VOD mode or a voltage range
(Press Enter to choose current range)
Recording Rate
- Chooses the rate
(Press Enter to choose current rate)
Length
Shows length of time stored for that channel in seconds
(Read only – press ESC to exit)
Recording Rate
- Chooses the rate
(Press Enter to choose current rate)
PreTrigger Time
- Chooses % Pretrigger Time
(Press Enter to choose current amount)
Internal Trigger
- Chooses Mode or Level
Mode
- Low Level, High Level,
Rising Edge, Falling Edge, Rise or Fall
(Press Enter to choose current Mode)
Level
- Chooses % Trigger Level
(Press Enter to choose current Level)
External Trigger
- Chooses Mode
Mode
- Low Level, High Level,
Break, Make, “Break or Make”
(Press Enter to choose current Mode)
(Press Enter to choose current amount)
Note: A channel that is set to be inactive using the software cannot be made active using the LED menu.

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3.3 DataTrap II™ Data/VOD Recorder Internal Rechargeable
Battery
The DataTrap II™ Data/VOD Recorder has an internal NiCad rechargeable battery. The DataTrap II™ Data/VOD Recorder is supplied
with an approved 100-240 VAC Battery Charger. When the internal battery is fully charged, the DataTrap II™ Data/VOD Recorder
can operate for 8 hours (typical use power consumption) before battery recharging is required. The DataTrap II™ Data/VOD Recorder
is shipped from MREL fully charged. Since some time may elapse before the DataTrap II™ Data/VOD Recorder is actually put to use,
the DataTrap II™ Data/VOD Recorder may not be charged fully the first time it is used. Full operating time will be obtained when the
DataTrap II™ Data/VOD Recorder is recharged.
3.4 Testing The DataTrap II™ Power Status
The procedure to check the power status of the DataTrap II™ Data/VOD Recorder is as follows:
1. Turn the DataTrap II™ Data/VOD Recorder on by pressing the POWER button for 2 seconds.
2. Press the INFO button on the front panel or hold it down to wake up the DataTrap II™ Data/VOD Recorder if it is in a power
conservation mode.
3. The display will show the energy remaining in the battery as a percentage of the full charge.
3.5 Recharging the DataTrap II™ Data/VOD Recorder
The procedure to recharge the DataTrap II™ Data/VOD Recorder is as follows:
1. With the DataTrap II™ Data/VOD Recorder switched OFF, connect the Battery Charger
to the DC IN port on the back of the DataTrap II™ Data/VOD Recorder and the wall
outlet. The display will show “Charging” indicating that charging is progressing. If the
battery is discharged completely, precharge will be performed automatically. During
the precharge cycle the “Charging” text will appear for a while once per several
seconds. The precharge cycle takes several minutes, after that normal charging process
will take place automatically.
2. Full recharging will take up to 8 hours. When charging has been completed, the
display will read “Battery full”.
CAUTION
The DataTrap II™ Data/VOD Recorder shuts itself off to help prevent complete discharging of the internal battery. It
is important to note that the DataTrap II™ Data/VOD Recorder has a non-volatile memory, allowing the data to be
stored safely regardless of the power status of the internal battery.
CAUTION
The DataTrap II™ Data/VOD Recorder circuitry ensures that the internal battery can not be overcharged. According to
the battery Manufacturer’s specifications, recommended recharging temperature is 20 to 30 °C (68 to 86 °F).