Dark Matter DM-X900 User manual

DARK MATTER TECHNOLOGY
DM-X900 Type B Paranormal Data Acquisition Meter
Owner’s Manual

DAR K MATTE R T ECH NOLOGY
DM-X900TypeBOwner’sManual
Dark Matter Technology, LLC
Copyright 2013 | All Rights Reserved
www.DarkMatterTech.com
Version 1.0
October 16, 2013
Windows 7, Windows Vista, Windows 8, and Excel are registered trademarks of the Microsoft Corporation.
DM-X Meter is a trademark of Dark Matter Technology, LLC.

Contents
Getting started with your DM-X900 ........................................................1
What is Included ...........................................................................1
Overview........................................................................................1
Key Features ................................................................................. 2
Operating your DM-X900..............................................................4
First Time Use.....................................................................4
Care in Handling...............................................................16
Display Details..................................................................16
Numeric Display Mode.....................................................17
Bar Graph Display Mode..................................................21
Recording .........................................................................23
Downloading Recorded Files to your Computer...........26
Erasing Recordings to Free up Memory ........................33
Battery Charging ..............................................................34
Setup .................................................................................36
How to Interpret EMF Readings......................................46
Finding Correlations in the Data.....................................47
Sensor Details........................................................................................50
Electromagnetic Field (EMF) Sensors....................................... 50
Extremely Low Frequency (ELF) EMF Sensor...............51
Very Low Frequency (VLF) EMF Sensor ........................51
AC Electromagnetic Field (EMF) Sensor........................52
Ambient Air Temperature Sensor.............................................. 52
Atmospheric Pressure Sensor................................................... 54
Audio Sensor...............................................................................54
EMF As Audio Sensor................................................................. 55
Power Drain Sensor.................................................................... 55
Specifications ........................................................................................ 57
Software..................................................................................................58
Software Installation...................................................................59
Graphing your Sensor Data .......................................................60
Modifying Data Scaling....................................................63
Horizontal Scrolling and Zooming..................................63
Data Markers.....................................................................64
Saving your Sensor Data Graphs..............................................64
Sensor Data Text File Format ....................................................65
Maintenance and Precautions..............................................................66
LCD Display Care........................................................................ 66
Rechargeable Lithium Ion Battery Maintenance and
Precautions .................................................................................66
Replacing the Micro SD Card.....................................................67

External Case Maintenance and Precautions...........................67
Troubleshooting ....................................................................................68
Limited Warranty ...................................................................................71

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Important! The DM-X900 is a complex instrument. Please read
operating instructions before operating.
Getting started with your DM-X900
What is Included
Your DM-X900 package will contain:
a. DM-X900 Paranormal Data Acquisition Meter
b. USB Charger Adapter
c. USB Cable
Overview
The DM-X900 is an advanced instrument specifically designed for the collection
of data in paranormal investigations. The DM-X900 allows the operator to
collect and store correlated, time stamped data from multiple sensors and
audio simultaneously to aid in proving or disproving paranormal activity. Over
11 hours of sensor data and audio can be recorded and later downloaded to a
computer for data analysis via USB. Your DM-X900 utilizes state of the art
digital signal processing and touch screen technology that makes it one of the
most advanced paranormal meters on the market today.
Note: The touch screen on the DM-X900 is a pressure
sensitive membrane and requires more pressure than you
may be used to with the capacitive touch screens on cell
phones and tablets.

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Key Features
Seven Built-In Sensors
ELF Electromagnetic Field (EMF) Energy with Extended Low
Frequency Mode down to single digit Hertz range.
VLF Electromagnetic Field (EMF) Energy
A.C. EMF False Alarm Sensor (EMF from AC power and wiring)
Fast Acting Ambient Air Temperature Sensor
Digital Atmospheric Pressure Sensor (mmHg or kPa)
Audio Microphone and optional EMF converted to audio
Power Drain Sensor
Color LCD Graphical Display
Bar Graph and Numeric display of all sensor data
Auto or Manual Brightness Control
Touch Screen Control
Advanced Digital Signal Processing
Built-In Clock/Calendar Time Stamps Sensor Data
Digital Audio Recording and Sensor Data Logging
4GByte micro SD Card data storage for audio and sensor data
Time stamped audio wave file for EVP recording correlated with
time stamped sensor data file.
Event Mark –Touch the screen or “Mark” button during an
interesting event and a marker is embedded in the sensor data file.
USB access to stored data and wave files (standard FAT file format).
Software control of microphone preamp gain.
Live Headphone Output of Digital Audio for Live EVPs
Source can be microphone or EMF signal converted to audio.
Built-In Rechargeable Battery Pack
Over 12 Hours of Operation (>18 Hours Not Recording)
Battery Monitor Indicator

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Charging via USB connector
Figure 1 –DM-X900 Type B Meter
TFT Color
Display
MicroSD
Card
On/Off
Mini USB
Connector
EMF
Alarm LED
Microphone
Rapid Air Temperature
Sensor
EMF Sensor
Digital
Pressure
Sensor
Charge LED
Auto-
Brightness
3.5mm
Headphone
Jack
Rechargeable
Battery

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Operating your DM-X900
First Time Use
Before turning on your meter for the first time, it is important that the battery
has a good charge. It is recommended that you charge the meter with the
included USB charger wall adapter and USB cable. You may also use a USB
connector on a computer as a charging source.
Step 1. Insert Temperature Sensor
1) The temperature sensor for the DM-X900 Type B meter is a
detachable low mass thermistor that plugs into the 2.5mm jack
on the front of your meter. Insert the temperature sensor into
the jack. The temperature sensor can be removed for storage
and can be replaced if it is broken. Separate replacement
sensors can be purchased from Dark Matter Technology.
Please follow these start up instructions before turning on your
meter.
Note: Once USB Access Mode is selected in the Setup Menu,
you cannot exit out of USB Access Mode without turning the
meter off.
Temperature
Sensor Jack

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Step 2. Charge the battery
2) Plug the USB charger wall adapter into an acceptable A.C. wall
socket.
3) Plug the provided USB cable into the charger and the meter’s
USB connector. The amber charge LED should light and charging
will commence.
4) It is likely that your meter arrived with nearly a full charge, but
charging may take up to 10 hours if the battery is exceptionally
low. When charging is complete, the amber LED will go out.
Your meter is now fully charged.
5) While you are charging, you can use this time to turn on the
meter and set it up. The meter will run from the USB power
source while the battery is charging.
Temperature Sensor
Assembled
Temperature Sensor

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Step 3. Turn on your meter
1) Press the ON/OFF button. The
button should light up red
and a banner screen should
appear on the LCD panel like
Figure 2.
Figure 2. –Banner Screen
2) A progress bar will advance as
the processor initializes
turning blue, green, yellow,
and then red. Next, the
sensor display screen will
appear.
3) The ON/OFF button light
should go out.
Step 4. Set up your meter
It is likely that most of the
settings will be properly set up
on your meter when it arrives.
However the following steps
ensure that it is in fact properly
set up and ready for use. The
recommended settings in the
following steps are common
settings and you may wish to
modify them later to suit your
preferences.
1) Press the button on
the touch screen. The blue
menu screen shown in
Figure 3 should appear.
Figure 3. –Menu Screen
Menu

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2) Temperature Setup. Press the button. The
temperature setup screen should appear and look like Figure 4.
a. Set the desired
temperature unit by
pressing the radio button
to toggle it. When it is
gray, Fahrenheit is
selected. When it is
green, Celsius is selected.
Figure 4. –Temperature Setup
Screen
b. Select the graph dynamic
range. By pressing the up
and down arrows on the
selector, select the value
16.00.
c. Press the button. This will take you back to the setup
menu and your new temperature setup choices have been saved.
3) Pressure Setup. Press the button. The pressure
setup screen should appear and look like Figure 5.
a. Select the desired units, kPa or mmHg.
PRESSURE
SETUP
BACK
TEMP
SETUP

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b. Then select the graph
dynamic range. By
pressing the up and down
arrows on the selector,
select the value 2.00 for
kPa or 8.0 for mmHg.
Figure 5. –Pressure Setup Screen
c. Press the
button. This will take you
back to the setup menu
and your new pressure
setup choices have been
saved.
4) AC EMF Setup. Press the button. The AC EMF
setup screen should appear and look like Figure 6.
a. Select the bar graph
dynamic range. By
pressing the up and down
arrows on the selector,
select the value 2.00.
Figure 6. –AC EMF Setup Screen
b. Set the alarm threshold
to 0.50. Disable the
alarm for this reading by
toggling the Alarm Enable
radio button with your
finger until it is gray, not
green.
AC EMF
SETUP
BACK

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c. Press the button. This will take you back to the
setup menu and your new AC EMF setup choices have been
saved.
5) ELF EMF Setup. Press the button. The ELF EMF
setup screen should appear and look like Figure 7.
a. Disable the extended
frequency range for now
by toggling the Extended
Low Frequency radio
button with your finger
until it is gray, not green.
Figure 7. –ELF EMF Setup Screen
b. Select the bar graph
dynamic range. By
pressing the up and down
arrows on the selector,
select the value 2.00.
c. Set the alarm threshold to 0.50. Enable the alarm for this
reading by toggling the Alarm Enable radio button with your
finger until it is green, not gray.
d. Press the button. This will take you back to the
setup menu and your new ELF EMF setup choices have been
saved.
BACK
ELF EMF
SETUP
BACK

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6) VLF EMF Setup. Press the button. The VLF EMF
setup screen should appear and look like Figure 8.
a. Select the bar graph dynamic range. By pressing the up and
down arrows on the selector, select the value 2.00.
b. Set the alarm threshold to
0.50. Enable the alarm
for this reading by
toggling the Alarm Enable
radio button with your
finger until it is green, not
gray.
c. Press the
button. This will take you
back to the setup menu
and your new VLF EMF
setup choices have been
saved.
Figure 8. –VLF EMF Setup Screen
7) Audio Setup. Press the button. The audio setup
screen should appear and look like Figure 9.
a. Deselect the EMF Audio Select radio button if it is selected.
We want to choose the microphone as the audio source for
now. Press the radio button until it is gray, not green.
b. Enable the audio alarm radio button by toggling it with your
finger until it is green, not gray.
AUDIO
SETUP
BACK
VLF EMF
SETUP

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c. Select the graph dynamic
range. By pressing the up
and down arrows on the
selector, select the value
55.00.
d. Select the microphone
preamp gain. By pressing
the up and down arrows
on the MIC PREAMP GAIN
selector, select the value
40.00.
Figure 9. –Audio Setup Screen
e. Select the headphone volume. By pressing the up and down
arrows on the HEADPHONE VOLUME selector, select full
volume, or a value of 0.00.
f. Press the button. This will take you back to the
setup menu and your new audio setup choices have been
saved.
8) Power Drain Setup. Press the button. The power
drain setup screen should appear and look like Figure 10.
PWR DR
SETUP
BACK

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a. Select the graph dynamic
range. By pressing the up
and down arrows on the
selector, select the value
10.00.
Figure 10. –Power Drain Setup
Screen
b. Press the
button. This will take you
back to the setup menu
and your new power
drain setup choices have
been saved.
9) Record Setup. Press the button. The recording
setup screen should appear and look like Figure 11.
a. Make sure that audio
recording is enabled by
toggling the RECORD
AUDIO radio button with
your finger until it is lit
green.
Figure 11. –Recording Setup
Screen
b. Make sure that sensor
data recording is enabled
by toggling the RECORD
SENSORS radio button
with your finger until it is
lit green.
RECORD
SETUP
BACK

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c. Press the button. This will take you back to the
setup menu and your new recording setup choices have
been saved.
10) LCD Setup. Press the button. The LCD display
setup screen should appear and look like Figure 13.
a. Turn off auto brightness if it is on by toggling the AUTO
BRIGHTNESS radio button with your finger until it is gray, not
green.
b. Select your preferred display type, bar graph mode or
numeric mode. The two types are shown in Figures 12a and
12b. Bar graph mode is selected when the ENABLE BAR
GRAPHS radio button is green. Numeric display mode is
chosen when the ENABLE BAR GRAPHS radio button is gray.
See the display section for more information on this choice.
Figure 12a –Numeric Display
Mode
Figure 12b –Bar Graph Display
Mode
LCD
SETUP
BACK

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c. Select the manual
brightness level. By
pressing the up and down
arrows on the MANUAL
BRIGHTNESS selector,
select the value 100.00.
Figure 13. –Recording Setup
Screen
d. Select the auto brightness
minimum level. By
pressing the up and down
arrows on the AUTO
MINIMUM selector,
select the value 30.00.
e. Press the button. This will take you back to the
setup menu and your new LCD display setup choices have
been saved.
11) Time/Date Setup. Press the button. The time/date
setup screen should appear and look like Figure 14.
a. Set time and date. By pressing the up and down arrows on
the selectors, set it to the present time and date. Values that
have changed will turn orange.
TIME
SETUP
BACK

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b. Press the
button. This will set the
internal clock/calendar to
the desired values. The
values that were orange
will turn white again.
Figure 14. –Time/Date Setup
Screen
c. Press the
button. This will take you
back to the setup menu
and your new time/date
setup values are now
active.
12) Press the button. This will take you to your selected
sensor data display. Your meter is now set up to nominal
settings. You may turn off the meter at this point by pressing
the ON/OFF button. Charging continues while the meter is on or
off.
13) Wait until the meter is fully charged. When fully charged, the
amber LED will go out. Unplug the DM-X900 meter from the
USB cable. Your meter is now ready to use, but read on to learn
more about how works.
BACK
BACK
SET
Note: If your meter ever experiences a software “hang,”
press and hold the ON/OFF button about 10 seconds until it
shuts down. Wait at least 20 seconds and turn it back on. If
that does not clear the error, see the troubleshooting guide
in the back of this manual.

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Care in Handling
The DM-X900 was designed with certain features to help protect it from damage
such as a recessed display, internal cushioning, and a rubber outer jacket.
However, you will be using it in the dark and certain common sense precautions
should be taken in order to protect your meter from damage. Use precautions
similar to those you would use for handling a tablet computer.
The DM-X900 has an LCD display which, while cushioned in its
mounting, can crack if dropped or is hit be an object.
The resistive touch screen overlay should be cleaned only with a
non-abrasive cloth, preferably of a type made for cleaning cell
phone displays. Do not wash your screen or liquid may seep into the
unit, possibly causing damage.
The ON/OFF button on the DM-X900 can be inadvertently turned on
or off if bumped.
Avoid leaving your meter in direct sunlight for a prolonged period of
time. Direct sunlight may damage the I.R. temperature sensor, warp
the plastic case, and/or damage the rechargeable battery.
Do not drop your meter in water or get wet. The DM-X900 is not
water proof and like a cell phone, the battery may be damaged or
could potentially cause a fire if it gets wet and short circuits.
Never pull the micro SD card out of the meter while power is on!
Damage to the card or meter might occur. If the card is removed
while recording, the file system most likely will become corrupted
and the card will need to be reformatted if it is not damaged.
Display Details
There are two different display modes that you can choose from according to
your preference, Bar Graph Display Mode and Numeric Display Mode. An
example of these two display modes is shown in Figures 15a and 15b. This
section will detail the contents of both display screens.