OKM Delta Ranger DR-A01 User manual

SCOPE OF DELIVERY
TRANSPORTATION & STORAGE
ASSEMBLY
GETTING STARTED
OPERATIONS
MAINTENANCE
TROUBLESHOOTING
DISPOSAL
TECHNICAL SPECIFICATIONS
REPS & WARRANTIES
USER MANUAL
OKM®Delta Ranger
DETECTOR FOR TREASURE, GOLD AND CAVITY HUNT
MODEL: DRA01
© 2023 OKM GmbH. All Rights Reserved.
U.S. Edition | ENGLISH
Version 1.0 | March 2023

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OKM GmbH
Julius-Zinkeisen-Str. 7
04600 Altenburg
Germany
Phone: [phone]
Website: www.okmdetectors.com
No part of this document may be reproduced in any form (by printing, photocopying or other means) or processed, duplicated or circulated electronically without prior written approval of OKM GmbH.
Copyright © 2023 OKM GmbH. All rights reserved.
TABLE OF CONTENTS
1 TRANSPORTATION AND STORAGE..........................................5
1.1 AVOID EXTREME TEMPERATURES AND MOISTURE ................................. 5
1.2 CHECK BATTERY STATUS REGULARLY ...................................................... 5
2 SCOPE OF DELIVERY AND CONTROL ELEMENTS ..............7
2.1 CONTROL UNIT ............................................................................................. 8
2.2 ANDROID SMARTPHONE ............................................................................. 9
2.3 CHARGER AND TRAVEL ADAPTER............................................................. 9
2.4 WIRELESS HEADPHONES ........................................................................... 9
2.5 PROBES ......................................................................................................... 9
3 ASSEMBLY ...................................................................................... 11
3.1 NECESSARY TOOLS.....................................................................................11
3.2 ATTACH PROBE............................................................................................11
3.3 ATTACH SMARTPHONE...............................................................................11
3.4 DETACH PROBE ...........................................................................................11
4 GETTING STARTED......................................................................13
4.1 CHARGE INTERNAL BATTERIES ................................................................13
4.2 PREPARE ANDROID DEVICE AND APP......................................................13
4.3 PAIR ANDROID DEVICE WITH DETECTOR.................................................16
4.4 OKM APP INTERFACE .................................................................................16
4.5 PAIR WIRELESS HEADPHONES .................................................................17
4.6 SET CROSSHAIRS POSITION......................................................................17
4.7 CALIBRATE COMPASS ................................................................................18
4.8 SETTINGS.....................................................................................................18
5 OPERATIONS..................................................................................23
5.1 PACEMAKERS ............................................................................................. 23
5.2 CAUTION DURING EXCAVATION................................................................ 23
5.3 OPERATING MODES ................................................................................... 23
5.4 BIONIC STREAM ......................................................................................... 24
5.5 IONIC STREAM.............................................................................................26
5.6 MAGNETOMETER ....................................................................................... 28
5.7 3D GROUND SCAN ...................................................................................... 30
5.8 THERMO SCAN............................................................................................ 38
5.9 THERMO STREAM....................................................................................... 42
5.10 FILE EXPLORER ........................................................................................ 44
5.11 FILE TRANSFER ........................................................................................ 45
6 MAINTENANCE.............................................................................47
6.1 CHECK AND CLEAN CONTROL UNIT AND PROBES.................................47
6.2 CHECK FOR APP UPDATES.........................................................................47
6.3 REGISTER/VERIFY DETECTOR...................................................................47
6.4 MAINTENANCE AND REPAIR BY OKM.......................................................47
7 TROUBLESHOOTING ...................................................................49
8 DISPOSAL .......................................................................................55
9 TECHNICAL SPECIFICATIONS .................................................57
9.1 CONTROL UNIT.............................................................................................57
9.2 PROBES ........................................................................................................57
10 REPS & WARRANTIES..............................................................58
10.1 ACKNOWLEDGEMENTS, REPRESENTATIONS, AND WARRANTIES..... 58
10.2 INDEMNIFICATION.....................................................................................59
10.3 LIMITATION OF LIABILITY.........................................................................59
10.4 SERVICE & SUPPORT ................................................................................59
11 INDEX.............................................................................................. 61
The search for historical and archaeological artifacts and structures
may be regulated in different ways from state to state. Searching with
a detector may require approvals and permissions from landowners,
public agencies and/or government authorities.
With the purchase of the OKM detector you DO NOT automatically
receive a detection permit or excavation permit!
Consult the authorities responsible for your search project and/or
area for information on required permits.
NOTICE
Read all instructions first
before commencing the
assembly and usage!
NOTICE
Do not drink any alcohol
or take any drugs before
or during the operation
of the device and follow
the instructions carefully!
All artifacts found on public lands are protected by state and federal
laws. It is illegal to collect artifacts on public lands. Artifacts include
anything made or used by humans including arrowheads and flakes,
pottery, basketry, rock art, bottles, coins, metal pieces, and even
old cans. Ancient objects that are found on private land are legal for
individuals to collect with written permission from the landowner
and legal for individuals to own under the Native American Graves
Protection and Repatriation Act of 1990 (NAGPRA).
However, these objects could be subject to a civil claim of superior
title by a tribe. Other requirements depend on the state. If you are
interested in collecting or metal detecting on private property, contact
your State Historic Preservation Office for more information.
Before collecting minerals found, familiarize yourself with the rules
stated on the Bureau of Land Management Website for your State.
NOTICE

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1 TRANSPORTATION AND STORAGE
Protect your detector and accessories by storing them in the Protector Case in a cool, dry place
(50 to 75 °F | 10 to 25°C). Unplug the probe from the Control Unit and power off the Control Unit
before packing the device and its accessories into the case.
Use the Protector Case for the intended purpose only. Keep away from children!
CHOKING AND ASPHYXIATION HAZARD!
A Cover is Not a Toy! Keep Away from Children!
DANGER
When shipping, use the original cartboard box or similar heavy-duty container and provide
sufficient padding around all parts.
1.1 AVOID EXTREME TEMPERATURES AND MOISTURE
Protect your device from extreme temperatures as well as dust and moisture during
transportation and storage.
1.2 CHECK BATTERY STATUS REGULARLY
Check the detector regularly if it is not used for a long time. When storing the Delta Ranger for
long periods of time, avoid completely discharging of the batteries. Instead, recharge the battery
at least every 3 months and up to approx. 90 % of the maximum charge capacity.
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TRANSPORTATION & STORAGE

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2 SCOPE OF DELIVERY AND CONTROL ELEMENTS
The scope of delivery depends on the selected model version: Light or Professional.
Light Professional
IControl Unit  
II Android Smartphone with OKM App  
III Charger  
IV Travel Adapter  
VHeadphones with charging cable  
VI Long-Range Probe (L)  
VII Thermo Probe (T) 
VIII Ground Scan Probe (G) 
IX Notebook with OKM Visualizer 3D Studio 
XProtector Case  
I
II
IIIIV V
VI
VII
VIII
IX
X
SCOPE OF DELIVERY

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2.1 CONTROL UNIT
VIII
I
IX
VI
III
II
VII
IV
V
ISmartphone Mount – see 3.3 Attach Smartphone on page 11.
II LED Lighting to illuminate dark areas.
III Probe Fitting with Probe Socket to ensure that the probe is plugged in correctly – see 3.2 Attach Probe on page 11.
IV
Charger Socket (USB-C) to charge the Control Unit with LED Indicator to show the charging state while charging the internal battery – see 4.1 Charge Internal Batteries on page 13.
VLabel with device information like Serial Number and Model Number – see 6.3 Register/Verify Detector on page 47.
VI Laser Pointer to set the crosshairs position – see 4.6 Set Crosshairs Position on page 17.
VII Knob to calibrate the Bionic Sensors – see 5.4.1 Calibrate Bionic Sensors on page 24.
VIII Trigger with LED to switch the Control Unit on and off. Control and confirm various functions. The ring-shaped LED indicates 4 connection states:
Flashing Green The Control Unit is switched on and waiting for a connection. No probe is connected and the App is not connected.
Permanently Green The Control Unit is switched on and successfully connected to the probe, but the App is not connected.
Flashing Blue The Control Unit is switched on and connecting/connected to the App, but no probe is connected.
Permanently Blue The Control Unit is switched on and successfully connected to the probe and to the App.
IX Handle with Electrodes – see 5.4.1 Calibrate Bionic Sensors on page 24.
2.2 ANDROID SMARTPHONE
The Control Unit is controlled via an Android smartphone App. For detailed information refer to
the respective sections in this manual. For further settings and information beyond the use of
the OKM App, refer to the smartphone manual.
2.3 CHARGER AND TRAVEL ADAPTER
The Control Unit is charged via charger. For detailed information refer to 4.1 Charge Internal
Batteries on page 13. In some countries the use of the Travel Adapter may be required.
2.4 WIRELESS HEADPHONES
The Android smartphone can be paired with wireless headphones via Bluetooth. For detailed
information refer to 4.5 Pair Wireless Headphones on page 17. For further settings and infor-
mation, refer to the smartphone and headphones manuals respectively.
2.5 PROBES
The OKM Delta Ranger is equipped with various probes according to the acquired edition:
Long-Range
Probe (L)
Thermo
Probe (T)
Ground Scan
Probe (G)
III
I
II
IProbe Label
II Probe Connector
III Notch
For correct assembly see
3.2 Attach Probe on page 11.
2.6 PROTECTOR CASE
The device and its accessories are stored and transported in a Protector Case 
see 1 TRANSPORTATION AND STORAGE on page 5. For further information, refer to the
Protector Case Care and Instructions.

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3 ASSEMBLY
3.1 NECESSARY TOOLS
No additional tools are required to assemble the OKM Delta Ranger.
Do not open the device and/or accessories. There are no end user serviceable parts inside.
3.2 ATTACH PROBE
Probes shall always be attached in the prescribed way matching the Probe Socket Pins.
Make sure the Probe Connector and Socket Pins
are clean before assembly!
NOTICE
Depending on the measurement, attach the probe to the Probe Socket:
1 2
Plug the Probe Connector into the Probe
Socket. Note the correct position of the pins!
Push carefully until the notch snaps in with a
noticable click sound.
3.3 ATTACH SMARTPHONE
3 4
Lift the Smartphone Mount. Attach the smartphone to the magnet.
3.4 DETACH PROBE
1 2
Press and hold the notch of the
Probe Connector to release the Probe.
Pull out the Probe carefully as specified by
the Probe Fitting.
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ASSEMBLY

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4 GETTING STARTED
4.1 CHARGE INTERNAL BATTERIES
Fully charge the Control Unit and the smartphone.
To charge the internal batteries, connect the charger from the power sup-
ply to the designated Charger Socket. Use the Travel Adapter to enable
a connection between the charger and a non-compatible wall socket.
The charging progress is indicated by the LED light next to the Charger
Socket: Orange when charging, and Green when fully charged.
It can take up to 4 hours to fully charge the battery.
1 2
Locate the Charger Socket. Remove the protection cap.
3 4
Plug in the Charging Cable (USB-C). Charge the smartphone via charging cable.
4.2 PREPARE ANDROID DEVICE AND APP
The OKM Delta Ranger is by default equipped with a pre-configured Android smartphone with
pre-installed and activated OKM Delta Ranger App.
You may install and activate the OKM App if:
• you want to use your own Android device.
• you want to add further Android devices.
• you reset the pre-configured Android device.
• you have technical problems with the OKM App.
4.2.1 Download and Install OKM App
The OKM Delta Ranger App is usually pre-installed on the included Android smartphone.
Browse the Apps in your smartphone to make sure the required OKM App has not yet been
installed.
• Get the Download File from the OKM online store or contact OKM Support.
• Download the OKM App to the Android device.
• Install the OKM App on the Android device.
• After successful installation, start the App, select Settings from the main menu and start
Update by tapping on the icon.
• After successful update, restart the App and proceed with the Activation – see
4.2.2 Activate OKM App on page 14.
GETTING STARTED

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4.2.2 Activate OKM App
2
If you have problems using the QR Code or you
do not have a QR Code, select Manual.
3
Enter the OKM Delta Ranger Serial Number.
4
Enter the OKM Delta Ranger Activation Code.
1
Select Activate App from the Settings menu.
2
If you have received a QR Code from OKM for
an automatic activation, select QR Code.
3
Use the smartphone camera to scan the
QR Code that you received with the detector.
5
Confirm the activation by tapping on
If the activation failed, try again. Make sure
that all entered data are correct.

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4.3 PAIR ANDROID DEVICE WITH DETECTOR
1 2
Press the trigger to power on the Control Unit. Power on the smartphone. Tap on the OKM
Delta Ranger App icon to start the application.
The App automatically establishes a connection to the Control Unit, if activated correctly.
4.4 OKM APP INTERFACE
I
X
II III
IV
V
VI
VII
VIII
IX
IMenu Icon shows the active menu. Tap to return to the main menu.
II The headline shows the active menu or option.
III App Connection Status indicates the connection status between App and
Control Unit.
not connected
connecting
connected
IV LED Lighting: Tap on the icon to toggle between ON and OFF:
OFF (default)
ON
VSmartphone Battery Status
battery level
VI Control Unit Battery Status
battery level
critical
charging
unknown
VII Language Code shows the selected language – see 4.8.1 Language on page 19.
VIII Navigation Sidebar: Tap on the arrows to browse through the options.
The dots indicate the number of available options.
IX Selectable Option: Tap on the icon to enter the menu or launch the option.
XReturn to the previous menu.
4.5 PAIR WIRELESS HEADPHONES
The acoustic feedback of the detector can be provided by headphones instead of smartphone
speakers in order to avoid attracting attention. Connect wireless headphones by pairing with
the smartphone:
Settings > Connected devices > Pair new device > Available devices > [Bluetooth Headphones]
Baseline HS
These settings may vary from one smartphone to another. Refer to your smartphone manual if
you have trouble pairing headphones.
4.6 SET CROSSHAIRS POSITION
LASER RADIATION
Avoid Direct Eye Exposure!
DANGER
Crosshairs Calibration is used to align the reticle (crosshairs) on the smartphone screen with
the laser dot on a distant object. This calibration is recommended before performing a new
measurement and every time you have changed the smartphone position on the Control Unit.
Make sure you have powered on the Control Unit and plugged in the Long-Range Probe (L) or
Thermo Probe (T).
1 2
Select Settings from the main menu and tap
on the Crosshairs Calibration icon.
The laser pointer is enabled as soon as you
confirm with .
34
Point the probe at a distant object so that you
can clearly see the red laser dot.
Drag the crosshairs to the correct position
on the smartphone screen: Center the cross-
hairs on the red laser dot. Confirm with .

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4.7 CALIBRATE COMPASS
Compass Calibration ensures that the cardinal directions are displayed correctly. This cali-
bration is recommended every time you have restarted the detector. Keep at least 160 ft (50 m)
distance from ferromagnetic interferences (e.g. power lines, electric fence).
1 2
Select Settings from the main menu and tap
on the Compass Calibration icon.
Make sure to hold the Control Unit
horizontally.
34
Press the trigger and rotate slowly around
your own axis ...
... while the calibration screen is visible.
Avoid pivoting or swinging during calibration.
56
After completing your 360° rotation,
finish the successful calibration with ...
... or retry the calibration.
4.8 SETTINGS
The following preferences and configurations are available via the Settings menu:
Language see 4.8.1 Language on page 19
Sound see 4.8.2 Sound on page 19
Vibration see 4.8.3 Vibration on page 19
GPS see 4.8.4 GPS on page 19
App Theme see 4.8.5 App Theme on page 20
Length Unit see 4.8.6 Length Unit on page 20
Temperature Unit see 4.8.7 Temperature Unit on page 20
Crosshairs Calibration see 4.6 Set Crosshairs Position on page 17
Compass Calibration see 4.7 Calibrate Compass on page 18
Activation see 4.2.2 Activate OKM App on page 14
Update see 6.2 Check for App Updates on page 47
4.8.1 Language
Use the buttons to loop through the
available languages. The selection is auto-
matically applied as soon as you return to the
previous menu by tapping or proceed to
the next settings option by tapping .
The selected language is indicated in the toolbar with the 2-letter-code according to ISO-639-1:
عربي (AR)
български (BG)
Deutsch (DE)
Ελληνικά (EL)
English (EN)
Español (ES)
فارسی (FA)
Français (FR)
Italiano (IT)
日本語 (JA)
Polski (PL)
Русский (RU)
Türkçe (TR)
中文 (ZH)
4.8.2 Sound
The App provides acoustic feedback for various functions. Tap on the switch to toggle between ON
and OFF. To avoid attracting attention you may use Bluetooth headphones (see 4.5 Pair Wireless
Headphones on page 17) or select Sound OFF.
VOLUME is adjusted via smartphone volume control buttons or Settings > Sound > Media Vol-
ume.
TOUCH SOUNDS are adjusted via smartphone: Settings > Sound > Advanced > Touch sounds.
These sound settings may vary from one smartphone to another. Refer to your smartphone's
manual if you have trouble adjusting the volume and touch sounds.
4.8.3 Vibration
Tap on the switch to toggle between ON and OFF.
The operating modes Bionic Stream, Ionic Stream, and Magnetometer provide vibration
feedback (via smartphone).
4.8.4 GPS
GPS coordinates can be logged for 3D Ground Scan and Thermo Scan, and will be saved as scan
file Meta Data for further documentation in the Visualizer 3D Studio software. Tap on the switch
to toggle between ON and OFF.