SCHMITT Xact-02 Series User manual

Xact Small Tank Monitoring System
Operation Manual
XLL100200 –Rev. 3.0
Productivity through Precision™
A product of:
Schmitt Industries, Inc.
2765 NW Nicolai Street
Portland, Oregon 97210 USA
Phone: [phone]
http://www.xact-data.com

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A Product Line of Schmitt Industries, Inc.

Xact Small Tank Monitoring System i
Operation and Specification Manual
for the
Xact Small Tank Monitoring System
XLL100200 –Revision 3.0
© 2013 Schmitt Industries, Inc.
2765 NW Nicolai St.
Portland, OR 97210 USA
Phone: [phone]
Fax: [phone]
www.xact-data.com
U.S. Patent Numbers.
7,905,143, 7,245,059, and 7,287,425,
8,104,341
and other patents pending.

ii Xact Small Tank Monitoring System
Suitable for use in:
Class I Division 2 Group D
Class I, Zone 2 Group IIA ( nL 3 G IIA T6 )
Non Incendive field wiring outputs for Class I, Division 2, Group D
See control drawing in Appendix A of this manual
Warning: Explosion Hazard. Do Not Remove or Replace Lamps, Fuses, Battery or Plug-In Modules (As
Applicable) Unless Power Has Been Disconnected or the Area Is Known To Be Free Of Ignitable
Concentrations of Flammable Substances
NOTICE:
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR DIVISION 2
ASSEMBLE AS SPECIFIED

Xact Small Tank Monitoring System iii
Table of Contents
System Purpose.....................................................................................................................1
Operator Safety Summary .....................................................................................................1
Xact System Overview ...........................................................................................................2
System Installation ................................................................................................................3
Selecting Install Location on the Tank ....................................................................................3
Measuring Tank Dimensions ..................................................................................................3
Installation of Sensor.............................................................................................................3
System Setup and Calibration ................................................................................................4
Activating your application ......................................................................................................... 5
New Installation .......................................................................................................................... 5
Set Monitoring Mode .................................................................................................................. 6
Setting Alarm Levels in Event Monitoring Mode ........................................................................ 7
Setting Measurement Cycles in Scheduled Monitoring Mode ................................................... 7
Enter Tank Dimensions................................................................................................................ 8
Calibration ................................................................................................................................... 9
Final Hardware Installation..................................................................................................10
Reading Tank Fill Levels .......................................................................................................11
Changing The Battery...........................................................................................................11
Troubleshooting ..................................................................................................................12
System Wiring Schematic.....................................................................................................13

Xact Small Tank Monitoring System 1
System Purpose
Xact Small Tank Monitoring System was developed to provide you with a cost effective reliable
means of monitoring your inventory. Giving you an up to date and reliable account of exactly how
much product is in your tank, will help eliminate outages, partial deliveries, and costly emergency
deliveries. This will allow you to concentrate on expanding your customer base and reduce costs.
Some of the information offered from the website includes: fill percentage, ambient temperature,
ullage, gallons/liters in tank, and history of measurements. Xact Small Tank Monitoring System also
allows you to define tank level alarms, which will report directly to your email to notify you of the
events when they happen, saving you valuable time.
Operator Safety Summary
This summary contains safety information necessary for operation of Xact Small Tank Monitoring
System for propane tanks. Specific warnings and cautions are found throughout the manual where
they apply, but may not appear in this summary. Before installing and operating Xact Small Tank
Monitoring System, it is necessary to read and understand the entirety of this manual. After reading
this Operation Manual, contact Schmitt Industries Inc. if any additional technical assistance is required.
Caution: Complies with FCC RF Exposure Requirements. Users and nearby persons must maintain a
separation distance of greater than 20cm (8 inches) from this antenna in operation.
Caution: To avoid equipment damage, do not drop or mistreat.
Caution: Only trained service technicians should attempt to perform service on Xact Tank Monitoring
Systems. Disconnect battery power before removing or connecting cables to the Xact
components, if such connections exist on your Small Tank Monitor product.
Caution: This is a low voltage system, do not alter or adjust system input voltage in any manner.
Substitution of components may impair suitability for Division 2.
Warning: EXPLOSION HAZARD –BATTERY MUST ONLY BE CHANGED IN AN AREA KNOWN TO BE NON-
HAZARDOUS.
Warning: EXPLOSION HAZARD –BATTERIES MUST ONLY BE CHANGED IN AN AREA KNOWN TO BE
NON-HAZARDOUS FOR CLASS I, DIVISION 2

2Xact Small Tank Monitoring System
Xact System Overview
Xact Small Tank Monitoring System consists of two parts: the Sensor and Satellite Box. These
parts are designed to be easily installed and configured for use by the end user. During installation the
system is located in place on the tank with the attached magnets and is secured in place using the
supplied strap at the completion of installation.
The Sensor is mounted on the bottom centerline of the tank. The Sensor sends an ultrasonic
signal through the wall of the tank and reads the return echo from the surface of the liquid in the tank.
By monitoring the time of flight referenced against measured tank dimensions, tank fill levels are
automatically calculated and displayed on the Xact Website.
The Satellite Box is mounted to the top of the tank and sends the measurement data via satellite
to a secure customer website. The measurement data includes: time and date, fill level, ambient
temperature, tank capacity, and various alarm settings. It also provides access to the system’s user
interface with the aid of the Xact Installation Software, allowing set up and configuration of the system
on a specific tank. Alarm levels can be set during the installation to notify the user of a refill needed,
critical fill level, or a refilled event. The battery is also conveniently located in this box.
Satellite
Xact Satellite Box
Xact Sensor

Xact Small Tank Monitoring System 3
System Installation
Xact Small Tank Monitoring System can be easily installed in a short period of time. This section
provides instructions for mounting the system on the exterior of the tank. Included are sections covering
necessary preparation and installation of the Xact Sensor and the Xact Satellite Box onto the tank.
Remove the components from the shipping box and inspect all devices for any potential shipping
damage. Connect the sensor cable to the Satellite Box. It is vital that this connection is fully engaged to
prevent any water damage!
Selecting Install Location on the Tank
It is important to locate the Xact System on the tank in a safe and convenient location. Special
attention should be paid to the location of fill points and discharge piping so as to not interfere with the
installation process.
Measuring Tank Dimensions
Measuring the tank dimensions is a critical step in the installation process. Without accurate tank
measurements, the Xact System will not be able to correctly calculate the tank liquid capacity. Determine
each of the following four measurements for the tank undergoing installation, and write these
measurements down using consistent units of measure (Inches or Centimeters) in preparation for system
setup and calibration.
•Measure the circumference of the tank using a flexible tape measure.
•Locate the manufacturer nameplate to determine the tank wall thickness. If this number is stated
in a fractional form (e.g. 1/6”), divide the top number by the bottom number to calculate a
decimal thickness measurement (e.g. 0.166).
•Measure the length (from weld seam center to weld seam center).
•Determine if the tank ends are Hemispherical or Elliptical
Installation of Sensor
The Xact Sensor is mounted externally on the bottom center line of the tank. It sends an ultrasonic
signal through the wall of the tank and reads the return echo from the surface of the liquid inside the tank.
Using high accuracy electronics to capture the echo, the distance from the bottom of the tank to the
surface of the liquid is calculated and reported to the Xact Satellite Box for broadcast.
Caution - Avoid installing the Xact System during tank filling or emptying activity. This might
cause a wave action in the tank that will reduce the ability of the system to obtain an accurate fill level.
Caution - For best results the fill level of the tank should be at least 20% full at installation.
The Sensor must be aligned with the bottom center line of the tank, and located near the tank drain
pipe. Ensure that the surface of the tank in the sensor installation location is clean and dry, and any loose
paint or foreign material has been removed.

4Xact Small Tank Monitoring System
Prior to attaching the Sensor to the tank it is necessary to locate the center line of the tank. Use the
Xact Level to mark the bottom centerline of the tank in two places approximately 12” (30cm) apart at the
edges of the area where the Sensor will be installed on the tank. Draw a straight line on the tank wall
between these marks to produce a reference centerline for installation.
Apply the complete contents of the provided pre-measured
packet of acoustic gel to the center of the lens face of the Sensor
as shown in the figure. The amount of gel applied is critical to
function, so use the entire gel package contents. If you ever need
to remove and re-install the Sensor, ensure that both surfaces are
wiped clean, then re-apply the pre-measured amount of acoustic
gel from a new package.
Locate the Sensor on the center line of the tank by aligning
the scribed lines on the sides of the Sensor housing and weather
boot, with the center line reference drawn on the tank. Once in
correct position, push the Sensor onto the tank surface.
The Sensor is attached to the bottom of the tank with four
magnets. Using your free hand push up on the four spring loaded
magnets until they contact the tank. Push upward firmly in the
center of the Sensor and hold for about 10 seconds to ensure that
the acoustic gel is evenly distributed between the wall of the tank
and the face of the Sensor. Ensure the Sensor is aligned to the
centerline on the tank as you finish.
With the sensor installed on the tank remove the strap from the box. Unroll and holding onto
the buckle, throw the loose end over the tank. Route the loose end under the tank and pull it until the
buckle is approximately in the middle of the tank. Ensure that the strap is lying flat around the tank and
directly over the center of the sensor. Insert the loose end of the strap into the buckle and cinch down
tight. This will pull the sensor up flat against the bottom of the tank. Before moving on, ensure the
alignment of the sensor with the center line on the bottom of the tank is correct.
Temporarily place the Xact Satellite box on top of the tank or another flat surface, magnets facing
up. Remove the taped plug and set aside for now. Start up your Xact PDA or Android application, and
insert the Bluetooth adapter into the 9 pin connector. Connect the battery into its 2 pin locking
connector. Both connectors are keyed to prevent accidental misalignment.
System Setup and Calibration
With the Bluetooth and battery connected, refer to the Xact Configurator application or the Xact
Setup program on your handheld device to finish the set up and calibration of your Xact System.
If you receive any error messages after starting the program refer to the
troubleshooting section of this manual before continuing. Make sure that all errors have been cleared
before continuing with the installation.

Xact Small Tank Monitoring System 5
Activating your application
Before you are able to use the Xact application on your Android based
device, you must first enter your activation code. If you have not received
your activation code please contact your system administrator or your
Xact sales representative.
The application will walk you through step by step the entire set up
process. Just ensure that you follow all prompts and answer all
questions accurately, to set up the Xact System with your particular
tank.
New Installation
To install a new system on your tank, you must first run the Xact
application on your Android based device. Once the application is
running, connect in your Bluetooth adapter and battery on your Xact
unit. When both of these are connected, select New Install.
On the first screen you need to confirm that the Time Zone, Time,
and Date are correct (select Accept or Change). The date and time
information shown will be used to set the clock in the Xact System, and
will become the basis for all subsequent measurement schedules.
If you select Change, you will need to input the correct date and time
information on your device. When completed, push the back button on
your device to return to the set up process.

6Xact Small Tank Monitoring System
To ensure an accurate installation process, the tank must be at least 20%
full. Please verify this minimum fill level.
Enter a unique description or identifier for the tank. This can be the
location of the tank or some other means of identification. The name
should be something that you and others can easily identify when referred
to on the website.
To bring up the onscreen keyboard, tap on the open space below
location.
A notes field is provided, however these notes are kept locally on your
device and will not be uploaded to the website. Tap the Accept button to
continue.
Set Monitoring Mode
A critical step in the set up process is selecting which of the two
available monitoring modes is desired for this Xact installation.
Scheduled Monitoring –Measurements are taken and reported on a
regular user defined time schedule.
Event Monitoring –Measurements are taken every hour following
installation. No reporting of measurements to the website occurs until:
1) One of the two Event Alarm fill levels is reached. The Event alarm levels
are user defined fill % levels at which a measurement report will be
made to the website. Setting these alarm levels is described in the next
screen.
2) A Refill report occurs whenever a 15% or greater increase in tank fill
level is measured, relative to the prior measurement.
3) A current fill status report is sent every Sunday afternoon.

Xact Small Tank Monitoring System 7
Setting Alarm Levels in Event Monitoring Mode
Only active in Event Monitoring Mode.
Alarm levels can only be adjusted at the tank. It is imperative that you
set these correctly, since revisiting the tank is required to make changes.
Refill Alarm. Refill is the first alarm level you will set. This percentage
will be your first notification on the website of tank draw-down.
Critical Alarm. Critical is the second notification of tank draw-down.
This alarm report will also be made a second time, 24 hours later, if no
Refill event occurs. Set the threshold of this alarm to ensure that you will
have plenty of time to get to this tank before it is empty.
Select the correct percentages by sliding the bar, and Tap the Accept
button to continue.
Setting Measurement Cycles in Scheduled Monitoring Mode
Only active in Scheduled Monitoring Mode.
On the following screens you will setup a schedule that determines how
often the Xact Tank Monitoring System will take measurements and report
the results.
Be advised that a schedule with higher numbers of measurements will
produce higher monthly monitoring costs for the system.
First indicate the day(s) of the week the system should measure and
report. Tap the Accept button to continue.
Next select the hour(s) of the day in which you want measurements to
be taken. The Xact Tank Monitoring System will wake up at a random time
during the selected hour(s) to measure and report the fill level of the tank.
For the most accurate measurement results you should select hours
that the tank will not be active with filling or dispensing. For example
before and after business hours or during any other period of time that is
known to be a quiet or inactive period for the tank. Tap the Accept button
to continue.

8Xact Small Tank Monitoring System
Enter Tank Dimensions
It is very important that all tank measurements entered are
accurate. The Xact System calculates the volume of the tank based on this
information. If the tank dimension measurements are not accurate, the
reported fill volume will be inaccurate.
Select the Circumference radio button and enter the circumference
measurement taken earlier.
Wall thickness –From the manufactures name plate, enter the tank
wall thickness, unless you entered an inside diameter. If the unit of
measure is a fraction, divide the top number by the bottom number to
calculate the required decimal equivalent. (e.g. 5/16” = .312”) Tap the
Accept button to continue.
Most small tanks have a shell thickness of .32”.
Enter the length of the tank (from weld seam center to weld seam
center). The manufacturer’s nameplate may give you an overall length.
This will include the end walls and therefore should not be used. Ensure
that the correct unit of measurement is displayed. Tap the Accept button
to continue.
Select the type of end cap that matches the tank being installed.

Xact Small Tank Monitoring System 9
Calibration
Confirm the calculated tank capacity displayed at the bottom is
reasonable. This is the exact tank water capacity according to the
dimensions you entered earlier. This may vary slightly from the tank
manufacturers name plate. If you feel this is incorrect, push the back
button on your device to verify your measurements.
In order for the Xact Tank Monitoring System to more accurately
calibrate to the tank, some information is helpful. Enter the approximate
fill level of the tank.
Once you have entered this information tap on the Begin Calibration
button to continue. If you don’t have this information check the box next
to Fill level unknown then tap on the Begin Calibration button.
Based on the information you provided in the previous steps, the Xact
System will perform a calibration cycle that sets the Xact Sensor for optimal
performance for the individual tank.
Progress of the Calibration is indicated by the bar, and should complete
in about 2-6 minutes. The application indicates if the calibration cycle was
successful or not by displaying the appropriate screen.
If the cycle is unable to calibrate, or if you receive an error message, see
the troubleshooting section of this manual for further assistance.
Upon a successful calibration, select Finish. Xact Small Tank Monitoring
System will now establish communications with the satellite system and
transfer the information to the web site. This process can take up to 45
minutes, depending on satellite location. DO NOT UNPLUG THE BATTERY.
Remove the Bluetooth adapter, retrieve the 2”plug that you set aside
earlier, and firmly insert it into the hole in the bottom plate of the Satellite
Box. Ensure this is completely seated and flip the box right side up.
While the system is completing the process of sending setup information,
you should immediately proceed to finish the installation of the hardware.

10 Xact Small Tank Monitoring System
Final Hardware Installation
With the Satellite box right side up, move it until it lays directly over the strap. Loosen the strap
so that you have enough slack to route it through the slots on the bottom plate of the box. Pinch the
strap into a “V” shape facing up. Slip the open part of the “V” through the slot in the plate. Once
through, open it until it lays flat. Repeat this process on the other side.
Once the strap is in place, cinch it down snuggly. Ensure that the strap is lying flat over the top of
the sensor and around the rest of the tank. See that the Sensor is still aligned correctly with the center
line of the bottom of the tank. Once everything is in place, the strap can be cinched hand tight.

Xact Small Tank Monitoring System 11
Reading Tank Fill Levels
At times it may be necessary to take a manual measurement reading
rather than waiting for the periodic measurements. To take a manual
measurement, you first need to loosen the strap so there is enough slack to
remove the strap from the slots in the Satellite box, remove the 2 inch plug
from the bottom plate, and plug in the Bluetooth adapter. Open the Xact
application on your handheld device, and select the Verify Tank Settings
icon.
The Xact System will measure the tank fill level and display it here.
Select Finish when complete. Once complete, exit the Xact application,
remove the Bluetooth adapter, and replace the 2 inch plug. Re-route the
strap through the Satellite box. Before you leave, ensure that the plug is
secure, the strap is over the sensor, the sensor is correctly aligned on the
bottom of the tank, and the strap is cinched tight enough that it pulls the
sensor up into the bottom of the tank.
Changing The Battery
To change the battery, loosen the strap so there is enough slack to
remove it from the slots in the Satellite box. Flip the Satellite box upside
down to expose the four screws in the bottom plate and remove them.
Remove the lid to expose the battery. Remove the 2 inch plug in the
bottom plate, unplug the battery, loosen the velcro strap, and remove the
battery. Place the new battery in the correct location, tighten the velcro
strap around it, route the battery connector to the opening from the plug,
replace the bottom plate and secure it onto the housing with the four
screws. Do not over tighten these screws. Plug in the new battery and
your Bluetooth adapter. From the application menu, select Battery
Change. Accept the correct time zone, time, and date, tap the Finish radio
button. You will be prompted after the Xact System has updated the time.
Select Finish when complete.

12 Xact Small Tank Monitoring System
Troubleshooting
In the event the Xact calibration process fails, it will report one of two results:
The first screen shown at right indicates that calibration failed because
the fill level measured is different than the expected fill level entered by the
installer. This usually means that the value entered by the installer was in
error due to incorrect readings from the float gauge on the tank.
If a fill percentage was used during the calibration, deselect this and
check the Fill level unknown box and re-run the calibration cycle. If the
calibration result is again unsuccessful, follow the instructions below.
The second screen shown indicates that calibration failed with no fill
level detected.
1. Verify that the tank is at least 20% full. Calibration should not be
performed on tanks with less than 20% fill.
2. Loosen the strap and remove the sensor. Ensure that the tank is free of
debris at the installation point, and that the tank is level from end to
end. Clean the gel off of the lens, reapply the correct amount of gel,
then re-install the sensor, making sure that the sensor is installed with
the correct alignment. Tighten strap and run the calibration cycle.
3. If the calibration result is again unsuccessful, it may be necessary to
move the Xact System to a new location on the tank and try again.
Repeat the installation process until you achieve a successful calibration.
Some tanks are more difficult to set up and the Xact System will only
allow a successful calibration at a good installation point on the tank.
During the installation process you might encounter various “Error”
notices in the application software. These notices generally deal with low
power issues, or disconnected wires. Follow the prompts to resolve problems.
Adherence to these suggestions will help achieve a successful installation.

Xact Small Tank Monitoring System 13
System Wiring Schematic
FOR USE IN CLASS 1 DIVISION 2 GROUP D HAZARDOUS LOCATIONS, AND CLASS 1 ZONE 2 GROUP IIA
NON-INCENDIVE FIELD WIRING APPARATUS XACT TRANSMITTERS XACT50060 XACT EVENT MONITOR XACT52060 XACT GAUGE READER XACT55001 XACT TRANSMITTER, ST M12
ASSOCIATED NON-INCENDIVE FIELD WIRING APARATUS
TRANSDUCER POWER (Blue)
VBAT-RS232 (Purple)
SDATA (White)
PDA_RX (Yellow)
PDA_TX (Brown)
VBAT+ (Red)
VBAT+ (Orange)
GROUND (Green)
GROUND (Pink)
SCLK (Black)
MANUAL RESET (Gray)
HALL POWER SUPPLY (Red)
GROUND (Drain)
N/C (White)
HALL VOLTAGE (Black)
Battery
NC = Not Used
Bluetooth
XACT TRANSDUCER
XACT34050 TRANSDUCER : XACT ST M12
TRANSDUCER POWER (Red)
GROUND (Drain)
SDATA (White)
SCLK (Black)
XACT GAUGE READER
XACT35001 GAUGE HARNESS : XACT M12 ROCHESTER R3-