Eureka MANTA2 User manual

MANTA and TRIMETER
MULTIPROBE MANUAL
This manual (rev. 11-2018) covers Eureka’s Manta2, Manta+, and Trimeter models.
For simplicity the term “Manta” is used collectively for all models.

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CONTENTS
A Learning the Manta in 30 Minutes .................................................................................. 6
A.1 See Your Manta ......................................................................................................................... 6
A.2 Talk to Your Manta.................................................................................................................... 7
A.3 A Short Exercise… ...................................................................................................................... 9
B Manta Basics……………… ................................................................................................ 11
B.1 Deployment Specifications…................................................................................................... 11
B.2 Manta Control Software Flow Chart ....................................................................................... 11
B.3 The Manta Has Four Basic Applications .................................................................................. 11
B.4 Underwater Cables.................................................................................................................. 12
B.5 Operating the Manta with Eureka’s Amphibian2 .................................................................. 12
B.6 What do the LED lights mean? ............................................................................................. 13
B.7 The USB Converter .................................................................................................................. 13
B.8 Accessories .............................................................................................................................. 14
B.9 Flow Cell .................................................................................................................................. 14
B.10 Routine Maintenance.............................................................................................................. 14
C The Manta Control Software… ...................................................................................... 15
C.1 Manta Control Software Map ................................................................................................. 15
C.2 Home Page.. ............................................................................................................................ 16
C.3 Hot Buttons ............................................................................................................................. 17
C.4 “PC” Pull-Down Menu ............................................................................................................. 18
C.5 “Manta” Pull-Down Menu .................................................................................................... 19
C.5.a Manage Manta Files ................................................................................................... 20
C.5.b Logging Set-Up ........................................................................................................... 20
C.5.c Calibration Log............................................................................................................ 21
C.5.d Sensors and Parameters List ...................................................................................... 21

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C.5.e Calibrate ..................................................................................................................... 22
C.5.f Manta Version............................................................................................................ 23
C.5.g Create a Custom Parameter....................................................................................... 23
C.5.h Delete a Custom Parameter ....................................................................................... 23
C.6 Software Update of November 2018 ...................................................................................... 23
D Sensors and Calibrations............................................................................................... 25
D.1 The Difference between Sensors and Parameters.................................................................. 25
D.2 Basics of Parameter Calibrations............................................................................................. 25
D.3 Choosing Calibration Standards .............................................................................................. 26
D.4 Calibration Record (“Cal Log”)................................................................................................. 27
D.5 Sensor Response Factor (SRF) ................................................................................................. 28
D.6 Temperature............................................................................................................................ 28
D.7 Dissolved Oxygen .................................................................................................................... 28
D.8 Conductivity............................................................................................................................. 30
D.9 pH ............................................................................................................................................32
D.10 Reference Electrode ................................................................................................................ 32
D.11 Oxidation-Reduction Potential (ORP)...................................................................................... 33
D.12 Depth and Vented Depth (Stage) ............................................................................................ 33
D.13 Turbidity .................................................................................................................................. 34
D.14 Fluorometers........................................................................................................................... 36
D.15 Ion-Selective Electrodes (ISE’s) ............................................................................................... 37
D.16Total Dissolved Gas (TDG) ....................................................................................................... 38
D.17 PAR .......................................................................................................................................... 39
D.18 Set Barometric Pressure and Set Time and Date .................................................................... 40
E Data Logging................................................................................................................. 41
E.1 What’s the difference between “Logging” and “Snapshot”?.................................................. 41
E.2 Why We Do Logging the Way We Do...................................................................................... 41
E.3 Sensor Warm-up...................................................................................................................... 41
E.4 Setting Up Logging Runs, Logging File Management, Logging Interval................................... 41
E.5 Activating Manta Logging........................................................................................................ 42

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E.6 Am I using Battery Pack power or Cable power? .................................................................... 42
E.7 Logging with an Internal Battey Pack ...................................................................................... 43
E.7.a Changing IBP Batteries in Manta 20, 25, and Trimeters and Activating Logging....... 43
E.7.b Changing IBP Batteries in Manta 30 and Activating Logging ..................................... 44
E.7.c Changing IBP Batteries in Manta 35 and 40 and Activating Logging.......................... 44
E.8 Logging with an Enternal Battery Pack.................................................................................... 45
E.8.a The External Battery Pack .......................................................................................... 45
E.8.b Changing EBP Batteries and Activating Logging......................................................... 46
E.8.c Installing and Removing the EBP................................................................................ 47
E.9 Batteries and Battery Life........................................................................................................ 48
E.10 Logging Redundantly with Telemetry ..................................................................................... 51
E.11 Controlling Sensor Fouling ...................................................................................................... 51
E.12 Pipe Kit..................................................................................................................................... 50
F Small-Screen Data Displays ........................................................................................... 51
F.1 Small-Screen Data Displays ..................................................................................................... 51
F.2 Connecting the Amphibian2 with a Cable............................................................................... 51
F.3 Bluetooth Battery.................................................................................................................... 51
F.4 Establish Bluetooth Communication....................................................................................... 52
F.4.a Connect to the Amphibian2 with Bluetooth for the First Time ................................. 52
F.4.b Connect to "Classic Bluetooth" Android Data Displays.............................................. 53
F.4.c Connect to "Bluetooth Low Energy" (BLE) Data Display (including iPhone) .............. 53
F.4 Example Screens from Small-Screen Data Displays ................................................................ 53
G Frequently Asked Questions ......................................................................................... 58
G.1 Our Three Most-Frequently Asked Questions......................................................................... 58
G.2 Sensors .................................................................................................................................... 59
G.3 Calibration and Maintenance.................................................................................................. 60
G.4 Communication and Software................................................................................................. 63
G.5 Deployment and Applications ................................................................................................. 64
G.6 General FAQ’s.......................................................................................................................... 65

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Additional Documents
For more information on various subjects, please check your Eureka Flash Drive (that comes with each
instrument) and the Eureka Web site (www.WaterProbes.com) under the Documents tab shown on the
Home Page.
As this manual was written, these documents and videos were on the Flash Drive:
1Calibrating Ion-Selective Electrodes: The Difference between Activity and Concentration
2Standardizing Eureka’s Turner Fluorometers
3Calibrating Eureka’s Turner Fluorometers
4Manta Comm Protocol
5Manta SDI-12 Adapter
6MODBUS Communications
7Performance Verification Statement for the Eureka Manta2 pH Sensor (2015)
8Evaluation of the Eureka Manta2 Water-Quality Multiprobe Sonde (USGS, 2017)
9Installing Manta Control Software on an Android Data Display
10 Manta Logging with an Uninterrupted Power Supply
11 Manta Power Options
12 Eureka Outperforms the Competition
13 Conductivity Sensor Calibration
14 Multiprobe Setup Instructions
15 Manta2 Multiprobe Calibration
16 Unboxing Video
All Eureka videos are also available on YouTube at www.youtube.com/channel/UCKSC0BpD9pS-
55mFAWt_jRQ .
Do you need help?
Eureka has the best customer service in the multiprobe market, so there’s no reason to get bogged down
with a problem. We welcome your call at 512-302-4333 x111, or email at [e-mail].
Eureka Water Probes 2113 Wells Branch Parkway Suite 4400 Austin TX 78728

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A. LEARNING THE MANTA IN 30 MINUTES
A.1 See Your Manta
1. The Manta Multiprobe is configured with your choice of sensors, and with or without a battery
pack.
2. The Underwater Cable connects the Manta to a Data Display (PC, Amphibian, logger, telemetry
device or, using the Bluetooth Battery, a tablet or smart phone).
3. The Storage/Calibration Cup protects the sensors when the Manta is not in use (keep a few ounces
of tap water in the S/C Cup when the Manta is not being used). And with the lid removed, it holds
your calibration solutions.
4. The Manta Flash Drive contains the software for connecting your Manta to your PC or other Data
Display, plus a digital copy of this manual, several instructional videos, and several technical notes.
5. The optional Data Cable lets you communicate conveniently with your Manta when an
Underwater Cable is not needed, for instance, during Calibration.The USB Adapter connects
between your Underwater Cable (or Data Cable) and a USB port on your Display Device. The USB
2
3
7
4
6
1
5
8

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Adapter can also connect an external power supply to your Manta if USB power is not adequate
(particularly with long Underwater Cables or large number of sensors).
Do not use the USB Adapter with anything but a USB port and a Manta.
6. The Maintenance Kit contains all the tools and maintenance items needed to keep your Manta in
top shape.
7. The Weighted Sensor Guard replaces the Storage/Calibration Cup to protect the sensors during
deployment, and to help the Manta sink.
A.2 Talk to Your Manta
Please follow the steps below to install Eureka software on your PC or laptop (collectively, PC).
1Plug the Manta Flash Drive into one of your PC’s USB ports.
2When the dialog box shown below opens, click Install Manta Software to upload the Manta User
Interface software and the USB Driver software onto your PC.
Eureka
Flash Drive

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Depending on which version of Windows you are accursed with, you might have to answer the usual
questions about your intention to load new software on your PC. Once you’re through with that,
you’ll be returned to the same screen that you started with, meaning that your Manta software and
USB Driver are installed.
Click the X in the upper right corner of the dialog box to close the installation process.
Note that you can download the Manta manual and various videos and technical documents that are
stored on the Eureka Flash Drive.
3If your Windows did not create on your Desktop a shortcut to the Manta
Control Software, and you would like to have one, click the Start button in
the lower left of your screen, click All Programs, click the Eureka folder,
right-click “Manta 2 Control Software”, and drag it to your desktop.
4Now connect your Manta to the USB Adapter using either a Manta Data
Cable or Underwater Cable.Click the Eureka “fish” icon to connect your PC and Manta. The Home
Page will appear, showing the Manta’s real-time data and various menu options. You can close the
program by clicking the X in the upper right corner.
This software installation process should take only a few minutes. Please call us (512-302-
4333, Ext 1111) if you have any problems.

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If your Manta does not connect with your PC, it may be that your organization’s network
firewall prevented the installation of the USB driver. Consult your IT department if you do not
see the Prolific USB driver listed in your device-driver menu (which is usually found in Settings
after clicking the Start button in the lower-left screen).

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A.3 A Short Exercise
Let’s do a quick exercise to show how easy the Manta is to use. We will connect the instrument to a PC,
calibrate conductivity, and check the Calibration Log for the conductivity calibration information.
1Connect your Manta to your PC with the USB Adapter and either a Data Cable or Underwater Cable.
2Click the Eureka icon to launch the Manta Control Software. Soon you will see the Home Page and
the data being sent from your Manta.
3Fill the Storage/Calibration Cup with tap water or conductivity standard and wait for the conductivity
reading to stabilize.
4Click the Manta pull-down menu on the Home Page and click Calibrate, and then click SpCond on the
next screen.