Accutron PRO User manual

Accutron Pro
Technical/Operations Manual
PRELIMINARY V 0.0.4
For more information on our products visit www.accutroninstruments.com
Contact us by email: [e-mail]
Or by Phone: [phone]

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Important Notice
The ACCUTRON PRO line of products is the exclusive copyright property of Accutron Instruments INC.
We reserve the right to make changes to the Accutron products and manuals without further notice to
improve reliability, function or design. Accutron Instruments INC does not assume any liability arising
out of the application or use of any product described herein, nor does it convey any license under its
patent rights, nor the rights of others.
The documentation found within this manual is to provide users of our products with technical
information pertaining to the installation, maintenance and setup of the product.
It is forbidden to use any Accutron documentation for any other purpose which may be detrimental to
the interests of Accutron Instruments INC.
PLEASE NOTE: This Manual is a work in progress and is being revised regularly. It may not accurately
reflect the most up to date systems. If you require any assistance in configuring your new Accutron Pro
Device, please call our technicians at [phone].

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The Manual
Refer to this manual for proper installation, operation, setup and maintenance of the Accutron Pro.
Special attention must be followed to warnings and notices highlighted from the rest of the text to
ensure it will stand out.
Warning: Failure to oblige with the necessary precautions can result in death, serious injury, and/or
considerable damage to the product.
Note: Important information about the product or that part of the manual, helpful hints, and or
troubleshooting advice.
•These instructions do not claim to cover all details or variations in equipment, or to provide for
every possible contingency that may arise during installation, operation, setup and
maintenance.
•For further information or to resolve issues not covered in the manual, consult the Accutron
Technical Service Team.
•The contents of the manual shall not become part of or modify any prior or existing agreement,
commitment or relationship.
•The warranty contained in the contract between parties is the sole warranty of Accutron
Instruments INC.
IMPORTANT: All specifications are subject to change without notice. Ensure your manual is up to date,
the version number can be found on the front page of the manual. If you are unsure please consult the
Accutron Technical Service Team.

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Table of Content
Important Notice ........................................................................................................................................... i
The Manual ................................................................................................................................................... ii
Introduction .................................................................................................................................................. 1
Section 1: General Information ..................................................................................................................... 2
Safety Guidelines .................................................................................................................................. 2
Information about your Accutron Pro .................................................................................................. 2
Section 3: Communication & Power Wiring Diagram ................................................................................... 4
Section 4: Inside the Enclosure ..................................................................................................................... 6
Section 5: Drawings & Dimensions ............................................................................................................... 8
Section 6: Installation.................................................................................................................................. 11
Calculating the Baseline .............................................................................................................................. 12
Calculations ............................................................................................................................................. 12
Mounting the Transmitter Box ................................................................................................................... 13
Navigating the Menu .................................................................................................................................. 13
Menu Options ............................................................................................................................................. 13
Section 7: Accutron Pro Web Interface ...................................................................................................... 17
The Dashboard ............................................................................................................................................ 18
Settings........................................................................................................................................................ 18
Setup ....................................................................................................................................................... 18
Networking.............................................................................................................................................. 18
Analog Output ......................................................................................................................................... 18
Alarms and Relays ................................................................................................................................... 19
Date and Time ......................................................................................................................................... 19
Modbus Slave .......................................................................................................................................... 19
Modbus Master ....................................................................................................................................... 19
Firmware Update .................................................................................................................................... 19
Section 8: Modbus Master Settings ............................................................................................................ 20
Section 9: Modbus Slave Settings ............................................................................................................... 21
Modbus Register Map ............................................................................................................................. 22

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Introduction
The Accutron Pro is a true IIOT (Industrial Internet of Things) device. This unit offers system builders
unprecedented flexibility for instrument cluster interfacing, both to Industrial DCS as well the World
Wide Web. The Accutron Pro is designed to be easy to use and intuitive in its application. It provides a
host of “most wanted features” in a single stand alone product.
Unlike previous gateway and webserver combos, the Accutron Pro is all in one, combining a universal
multi protocol gateway (Modbus RTU & TCP, Ethernet IP™, etc), and integrated web server that can
display user settings for PC browsers or Smartphones. It has a fully compliant HTML5 interface.
The Accutron Pro also has advanced traffic logging that can log Ethernet TCPIP, as well as traffic on its
ports. In time of trouble the technician can access the traffic logs, and spot instrument timeouts, and
failures leading to rapid diagnosis of technical malfunctions. All this can be done without interrupting
the flow of DCS commands, thanks to the multi threading capability of the Accutron Pro. In fact, many
users can access the Accutron Pro simultaneously.
As new protocols and features are added, Accutron Pro firmware may easily be upgraded. This can be
done remotely over the network, or locally by a technician. Simply go to our website:
www.accutroninstruments.com and download the latest version available. Within seconds you can flash
our device underground from your office and you will be up to date with the latest and greatest version
of the Accutron Pro.
If you have any suggestions on improvements of this product, please share it with us. We value your
input. This product was designed to be user friendly and we are actively looking on how we can improve
our products to satisfy our customers.

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Section 1: General Information
Safety Guideline
This device should only be set up and operated in conjunction with this manual. Qualified personnel are
only authorized to install and operate this equipment in accordance with established safety practices
and standards.
Information about your Accutron Pro
When you first receive your Accutron Pro device, ensure you record the following information shown
below. If you need to contact Customer Service, this information will allow us to provide you more
efficient service. This information is located under the Lid of the Accutron Pro.
Table: 1.0
Accutron Pro
Part Number:
Serial Number:
MAC Address:

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Section 2: Specification
CPU: ARM® 32bit MCU
Connections: Pluggable Screw terminal blocks
Input Power: Terminal blocks: 20 VDC to 48 VDC, 6 watts typical
PoE: 48V IEEE 802.3af, Mode A & B compatible
Interfaces:
Ethernet: Modbus TCP, Ethernet I/P
2x RS 485: Modbus RTU
Accutron Device Bus: Airflow sensors, Temperature/humidity sensors, Display
2x 4 20mA outputs: Non loop powered (4 wire transmitter)
2x Dry Contacts: 50V AC/DC, 1A Max.
WIFI: IEEE 802.11 b/g/n, Client Mode (WPA2) and Access point Mode
Enclosure: Vented
Programming: Webserver (Network set up via Navigation buttons)
Mounting: 35mm Din rail mounted
Temperature Range: 40˚C to + 80˚C
Display: 128 x 128 pixels OLED Color Display
Memory: 2 32GB micro SD card (4GB card included)
Note: Supported eb bro sers, Firefox v52+, Chrome v57+, Microsoft Edge v80+, Internet Explorer is
not supported.

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Section 3: Communication & Power Wiring Diagram
AC Power Input DC Power Input

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Connection Entry Diagram
Bottom View

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Section 4: In ide the Enclo ure
LED Indicators: Power and 4 user settable LEDs
Micro SD card: The Micro SD card can be inserted and removed from underneath the lid of the
enclosure.
Navigation Buttons: Press and hold the center navigation button to enter the menu.
Color Display:
Reboot button: Reboots device. Settings are not lost.

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Section 5: Drawing & Dimen ion
Transmitter Enclosure

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Accutron Pro Module
1.775" (45.09mm)
3.533" (89.74mm)
Height
2.400"
(60.96mm)
1.4" (35.56)
Side View
4.395" (111.63mm)
Flow Pro Module
4 3 2 1
4321
ccutron Bus
+ B -
4 3 2 1
4321 4321
4-20m Out Dry Contact
Length 4.236" (107.59mm)
Width
4.395"
(111.63mm)
Top View
Power
Accutron Pro
PN: ACC-PRO
www.accutroninstruments.com
705.6 2.0 14
LED1 LED2 LED3 LED4

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Drift Sensor Mount
Drift Sensor

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Section 6: In tallation
Note: The examples below refer to the drift sensors, but the same methods apply for all sensor
installations (fans, ducts, tunnels, etc.)
When mounting the transducers to the wall, it is recommended that one be installed near the ceiling of
the drift and the other located downstream near the bottom of the drift (figure 7). The distance
downstream between the two sensors is called the baseline. It is recommended that the baseline be set
such that the face to face vector between the two sensors is between 30 60 degrees to the airflow.
Figure 1: Ideal Sensor Installation
Alternatively, for a less intrusive setup, the sensors can be fitted near the top of the drift (figure 8). This
is not recommended as it does not sample a true cross section of the airflow, but this can still provide
accurate measurements so long as the drift has generally uniform airflow.
Figure 2: Less Intrusive Sensor Installation

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Once the mounts are installed, thread the sensors onto the
mounts and point them at each other using pan/tilt
adjustment on the mount. Once power is run to the unit
these sensors can be aligned properly using the laser
alignment found in the configuration menu of the
transmitter.
Calculating the Ba eline
As previously mentioned, it is recommended the airflow
sensors be installed such that the face to face vector
intersects the direction of flow at an angle between 30 and
60 degrees. This can be achieved by installing the sensors with
the proper baseline. The baseline is the separation
downstream between the two sensors. See Figures 9 11 for
reference.
Calculation
To Find Angle from Baseline and Face to Face:
  
 

  
 

To Find Baseline from diameter and desired angle
   !"#$%& ' ()
*(  (+ !"#$%& ' + ()
Diameter from baseline and face to face
,  -
.
' (
.
(/0  -11 ' ,(
.
Figure 3: Typical Configuration
Figure : Ideal Configuration
Figure 5: Better in High Velocity Applications

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Mounting the Tran mitter Box
Note: When mounting the transmitter box avoid mounting near medium/high voltage, as this may result
in unwanted noise.
When mounting the transmitter, consider the accessibility of required power (POE, 110 240 VAC,
24VDC.) as well as any output connections such as to PLC.
Navigating the Menu
The Accutron Pro will boot up as soon as it receives power. Under the lid, the Pro has a keypad used for
navigating the menus. On initial bootup, the Accutron Pro will configure itself with default settings.
The Menu can be accessed by pressing the center button, or the right button on the keypad. Menu
items can be accessed by pressing the middle button or the right button where there is a chevron beside
the item name. The left button can be pressed any time to return to the previous menu.
Changing IP Setting
After Navigating to the Network menu and making any changes, scroll all the way down to Reset
Interface. Enter this menu, then click the center button and wait for the Done check mark to appear.
This may take up to 15 seconds. After the check mark appears, click the Reboot button.
Menu Option
Setup
Airflow Setup
•System of measurement – Sets the units of measurement for the entire system,
and hides irrelevant units in other menus
•Face to Face – sets the face to face distance between the two airflow monitors
•Baseline – sets the downstream distance of the two airflow monitors
•Flow Area – specifies the cross sectional area of the flow for volumetric flow
rate output
•Velocity Units – Specifies the units to display velocity values in. Note that some
options may be hidden depending on the system of measurement chosen.
•Volume Units – Specifies the units to display volume in. Note that some options
may be hidden depending on the system of measurement chosen.

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•Display Mode – chose to display velocity or volumetric.
•Flow Direction – if the airflow is negative, use this to make it positive
•Moving Average Size – used the smooth out the readings
Transducer Setup
•Clear Tilt Alarm – Used to clear system of any tilt alarms.
•RX Gain Step – 4 recommended, increase as the face to face distance increases.
•Filtering mode – Change the filtering mode between hardware or JFilter. Unless
otherwise specified by an Accutron technician, leave this set on JFilter.
•JFilter Min Amplitude – 500 to 700 recommended
•JFilter Min Duration – 0.15 to 0.30 recommended
•A Align Laser – Toggles alignment laser for transducer A
•B Align Laser – Toggles alignment laser for transducer B
•A Identify – Sets transducer A to identify mode. This will cause the LED on the
transducer to blink and cycle colors to help identify each transducer.
•B Identify – Sets transducer B to identify mode. This will cause the LED on the
transducer to blink and cycle colors to help identify each transducer.
Network
•Wired Info – Displays network information such as MAC address and device IP for wired
connections
•WiFi Info – Displays network information such as MAC address and device IP for wireless
connections
•WiFi Enabled – Enables or disables wireless network capabilities
•WiFi Mode – Sets device wireless behavior. Leave this set to Client
•Wired Mode – Sets how the wired device IP is configured. Setting this to DHCP will allow
the device to automatically set an available IP.
•Wired IP Address – Sets the IP address of the device when wired to the network
•Wired Netmask – Sets the netmask address of the device when wired to the network
•Wired Gateway – Sets the gateway address of the device when wired to the network
•WiFi IP Address – Sets the IP address of the device when using WiFi
•WiFi Netmask – Sets the netmask address of the device when using WiFi
•WiFi Gateway – Sets the gateway address of the device when using WiFi
•Reset Interface – Resets the network interface. This must be selected after changing any
network settings for the changes to take effect.
Analog
Channel 1
•Output Variable
•Raw Airflow Volume – value with no averaging
•Airflow Velocity
•Airflow Volume
•Raw Airflow Velocity – value with no averaging

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•Tilt Alarm
•Tilt Alarm
•Transducer Tilt Alarm
•Channel A
•Channel B
•Minimum (4mA) – Minimum value specified in output to be set at 4 mA
•Maximum (20mA) Maximum value specified in output to be set at 20 mA
•Clip to Range
•Override Value
Channel 2
•Same Options as Channel 1
Alarms
Relay 1
•Input Variable
•Raw Airflow Volume
•Airflow Velocity
•Airflow Volume
•Raw Airflow Volume
•Transducer Tilt Alarm
•Channel A
•Channel B
•Trigger Value
•Dead Band
•Direction
•Increasing
•Decreasing
•Boolean
•Enabled
•Disabled
•Enabled
Relay 2
•Same Options as Relay 1
Modbus
RTU Settings – This menu allows you to configure the Modbus RTU settings of your
Accutron Pro Device
•Baud Rate – Allows you to set the Modbus Baud Rate from 110 to 115200
•Slave ID Set the Slave ID of the Modbus device
•Data Bits Set data bits to 7 or 8
•Stop Bits – Sets stop buts to 1 or 2
•Parity – Set parity to None, Even or Odd

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TCP Settings This menu allows you to configure the Modbus TCP settings of your
Accutron Pro Device
•Slave ID
•TCP Port
Exit – Selecting this will return you to the Accutron Pro Home Screen