BAPI Blu-Test Guide
Blü-Test Wireless Test Instruments
Operations Manual & User Guide
Communicates via Bluetooth with your Android™and iOS Smartphone or Tablet
Temperature, Humidity and Dierential Pressure Sensors
Rechargeable Lithium-Ion Battery via Micro-USB
Connect Up to 6 Probes at a Time
OLED on the Probe Displays Readings
Sealed
piercing
tip
Adjustable rubber
duct cone allows
hands-free
measuring in
ducts
Reversible belt clip
OLED displays
measurements and
cycles through other
displays: battery, level,
log indicator, etc.
Sealed
probe tip
can be
used in
liquids
Gauge Graph
Magnetic side
panels for secure
mounting on metal
Low
Pressure
Standard
Pressure
Piercing
Temperature
6 in (150 mm)
Temperature
9.5 in (240 mm)
Temperature
Temperature
/ Humidity
Open tip for
measuring
temperature
and humidity
Download App
from App Store
Download App
from Google Play
Probe Clip
Hanger for
attaching to
room units
and grilles
Multi-function button
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
2 of 12
Sect. 1: Overview and Identication
Table of Contents
Section & Description Page #
1: Overview and Identication .................................................................................................................................. 2
2: Probe Operation ................................................................................................................................................... 3
3: Loading App and Connecting to a Probe.............................................................................................................. 3
4: Dashboard Screen Overview - Blü-Test Application............................................................................................. 4
View a Probe: Gauge View Screen, Logs Screen, Settings Screen
5: Graph Screen Overview - Blü-Test Application..................................................................................................... 5
6: Logs Screen Overview - Blü-Test Application....................................................................................................... 5
7: Sites/Locations Screen Overview - Blü-Test Application ...................................................................................... 6
8: Tools Screen Overview - Blü-Test Application ................................................................................................... 7-8
9: Best Measurement Practices................................................................................................................................ 9
10: Cleaning ............................................................................................................................................................. 10
11: Storage ............................................................................................................................................................... 10
12: Diagnostics......................................................................................................................................................... 10
13: Recalibration Information.................................................................................................................................... 10
14: Specications ......................................................................................................................................................11
Blü-Test is a suite of handheld test instruments that communicate via
Bluetooth 4.2 to the user’s enabled Android or iOS smartphone or tablet. Each
probe comes with a National Institute of Standards and Technology (NIST)
traceable certicate of calibration.
Blü-Test is very simple to use. Press the multi-function button on the probe
body to turn it on. View live readings in the OLED display. Double press the
button to begin logging.
Many more features are available by using the Blü-Test App on your
smartphone or tablet.
● View the current reading from a single or multiple probes
● View live trend data in a graph
● Download log les from the probe
● Review downloaded log les in a graph
● Email downloaded log les for use in commissioning, troubleshooting or
comparing against the BAS
Fig. 1: Blü-Test Suite of Sensors
(Units on the right are shown
with the included duct cone for
hands-free measuring in ducts.)
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
3 of 12
Sect. 2: Probe Operation
Button Press Functionality
One button press......... Turns unit on.
Wakes the unit if it is in sleep mode.
If the unit is on and awake, 1st press selects °C for the display.
2nd press selects °F for the display.
Additional single presses cycle through: Display Type (°C/°F on
temp units) (%RH/°C/°F on temp/humidity units) (WC/Pascals on
pressure units), Firmware Version, Sensor Type, Sensor ID, Serial
Number, Battery Charge Level in %, and Part Number.
Two quick presses ....... Toggle logging of readings on/o. The word “LOG” is shown
on the OLED display next to the battery icon when the probe is
logging data. You must turn o logging for the log le to be saved
in the probe’s memory and be visible in the Blü-Test App.
Press and hold............. Hold for 2 seconds to turn unit o.
Three button presses... Autozero for pressure units only
Additional Info
Battery Indicator .......... Level of charge. Up to 10 days of continuous logging on a single charge.
Sleep Mode ................. The screen will go blank after two minutes of no activity.
Sensing Detail .............
Measurements are taken and updated to the App as selected in the App.
Auto-O ....................... After 15 minutes of no activity (no logging, no active App present).
On Probe Log Storage..
Probe can store up to a million readings in a maximum of 31 log les. Once the memory is
full, a new log le will automatically overwrite the oldest log le. The Blü-Test App is needed to
periodically delete all log les on a probe.
Battery Charging
The probe has a rechargeable battery and requires periodic charging with the supplied USB cable that plugs into the
micro USB port on the back of the unit. The battery icon on the display will indicate that the unit is charging.
Fig. 2: Closeup of the
OLED display
BAPI recommends that you fully charge the battery with the supplied USB cable prior to rst use.
Sect. 3: Loading App and Connecting to a Probe
Blü-Test App (Phone or Tablet Display):
The Blü-Test App must be loaded on your Android or iOS smartphone
or tablet to communicate with the probe. The App requires a minimum
operating system of Android OS 5.1 or higher and Apple iOS 10 or
higher.
Loading the Blü-Test App:
1. Access the Google Play Store or Apple App Store on your internet
enabled phone or tablet.
2. Search for “Blu-Test” (Do not use the “ü” symbol in your search).
3. Tap the Blü-Test Application icon (Fig. 3) and select “Install” to install
on your device.
Connecting to a Probe:
Turn on the probe and open the Blü-Test App. If Bluetooth on your device is turned o, the
App will ask permission to turn it on. Probes will connect automatically within 30 seconds
and be shown on the Dashboard Screen.
Fig. 4: Dashboard Screen
showing multiple active
Blü-Test probes. Blü-Test
Home Screen
Fig. 3: Blü-Test
Application Icon
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
4 of 12
The Blu-Test App is used to manage our full suite of test
instruments. Visit our website to see the other probes in the suite.
Navigate to the Dashboard Screen by either tapping the
Dashboard option from the Home Screen, or tapping the
Dashboard icon on the bottom of all screens. The Dashboard
Screen (Fig 6) provides an overview of all the Blü-Test probes
that are connected. The application performs best with 6 or less
connected probes; however, the App can communicate with more
than six probes at the same time.
VIEW A PROBE
To view a specic probe, simply tap on the tile for that probe in
the Dashboard. This opens the Gauge View screen. From this
screen, you can also open the Logs
screen and Setting screen.
Gauge View Screen
The Gauge View gives live readings from the selected Blü-Test
probe. You can cycle through the units of measurement by
tapping on the unit of measure icon on the lower left of the
screen (°F in Fig 7).
Probe Logs Screen (showing logs stored on that probe)
Tap on the word Logs to open the Logs Screen. This shows
a list of all logs that are stored on that probe and available for
download to the application. See Sect. 2 for logging instructions..
Note: Logging must be turned o on the probe for the new log le
to be created and appear in the App.
Fig 8 shows two log les that are checked for download from
the probe to the Blü-Test application. Tap the top left “Download”
button to download the checked les to your device, or tap the
white down arrow to download individual les. The down arrow
(indicating logs are available for download) will change to an
empty circle to show that the logs are in the download queue.
The empty circle will start to ll to show the download progress.
When the download is complete, the log les will appear in
the “unassigned logs” area of the Application Log Screen (See
Sect. 6), and will be removed from the Probe Logs Screen shown in Fig 8.
Probe Settings Screen
The Probe Settings Screen (Fig 9) displays specic information for that probe, and lets you
modify the name (up to 12 characters) as well as view the calibration certicate, update
rmware, and delete all logs from that probe. Pressing the “Identify” button displays the
name of the probe in the probe’s OLED display so you can tell which probe it is.
NOTE ON FIRMWARE UPDATES: Do not leave the Firmware Update Screen once the
“Install Firmware Update” button is tapped. Moving from this screen to a dierent
application or to answer a phone call or a text before the update has completed will
interfere with the updating process and potentially render your probe inoperable.
Note on Probe Logging Mode: If your probe will not go into logging mode, this could be
an indication that the onboard log memory for the probe is full. Tapping the “Delete all logs
from probe” button at the bottom of the Settings Screen will clear the memory of that probe.
Sect. 4: Dashboard Screen Overview - Blü-Test Application
Fig. 9: Settings Screen
Fig. 5: Home Screen Fig. 6: Dashboard
Screen showing six
active Blü-Test probes.
Fig. 7: Gauge View
Screen
Fig. 8: Probe Logs Screen
showing logs stored on
probe TH-81773.
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
5 of 12
The Graph Screen (Fig 10) trends
“Live Data” from up to 6 probes. The
graphed data can also be saved as
a log by tapping the “Save” button,
and the log les will appear in
the “unassigned logs” area of the
Application Log Screen described in
the next section.
To select probes to graph, tap on the
graphs icon and then tap the add
probes “+” button in the upper right
corner of the initial Graph Screen
(Fig 11). This brings up the list of
active probes (Fig 12). Tap the check
box of up to six probes to graph, and
then tap the arrow in the upper left
corner or press the Graph symbol at
the bottom.
This brings up the Graph Screen
showing the live trend. The red
humidity log is highlighted as the
primary log in Fig 10 so the scale
values on the axes only apply to that
graph.
Sect. 5: Graph Screen Overview - Blü-Test Application
Fig. 12: Graph Screen
after the add probes
“+” button has been
pressed. The check box
has been tapped on the
rst probe for graphing.
Fig. 10: Graph Screen
showing two logs. The
red humidity log is
selected as the primary
log so the scale values
on the axes only apply
to that graph.
Sect. 6: Application Logs Screen Overview - Blü-Test Application
The Application Logs Screen (dierent from the
“Probe Logs Screen” described in Sect. 4) is where
the Blü-Test Application stores the log les that have either
been downloaded from a probe (as described in Sect. 4),
or saved as live data in the Graphs Screen (as described in
Sect. 5).
Saved log les are initially displayed in the “unassigned”
area of the Application Logs Screen (Fig 13) until they have
been assigned to a specic Site or Location (as described in
Sect. 7).
The Application Logs Screen lets you manage the log les
that have been downloaded to the application. The three
icons to the right of the log allow you to view a graphical
representation of the log, edit the log site, location or name
(Fig 14) or add a photo to the log. The search bar at the top
lets you search for specic logs within the application. The
“Send” button below the search bar lets you send selected
logs as comma-separated values (.csv) les via email.
The “Delete” button lets you delete selected logs, while the
“Assign” button lets you assign the selected log to a site or
location.
Fig. 13: Logs Screen
Fig. 11: Initial Graph
Screen showing the
add probes “+” button
to add probes.
Press the add
probes “+”
button at the
top to bring
up the list of
active probes
to graph.
Fig. 14: Edit Logs
Screen
Graphical
View
Edit
Log
Add
Image
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
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Sect. 7: Sites Screen Overview - Blü-Test Application
The Blü-Test App uses a two-tiered approach to managing site and locations. Sites are the main facility or
campus, and Locations are the specic rooms or areas within that facility. Sites and Locations can be entered manually
or by importing a le. You can also delete sites and locations from the sites and locations screens, along with exporting
a comma-separated values (.csv) le of your sites and locations.
Fig. 15: Sites Screen
before adding sites
Fig. 16: Sites Screen
with site added
Fig. 17: Locations
Screen before adding
locations
Fig. 18: Locations
Screen with locations
added to BAPI site
IMPORTING SITES AND LOCATIONS
To create a .csv le for import, simply create an Excel spreadsheet as shown in Fig 19. Save the Excel le as a .csv
le, and email or save the .csv le to your smart device. Go to the Sites Screen on the Blü-Test App and tap the
“Import” button. Find the le that you would like to import (usually in the downloads folder) and then select it and
download it to your smart device.
Fig. 19: Import .csv File
Example
Fig. 20: Import Sites Fig. 22: Sites added to
Blü-Test App
Fig. 21: Select le to
import
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
7 of 12
Temperature Transmitter
Accuracy Calculator
This tool is used to determine
the accuracy of a BAPI
T1K 4 to 20 mA Platinum
RTD transmitter for a given
temperataure range. Just enter
the low and high temperature
of the range of the transmitter,
the unit of measure and the
type of RTD sensor: Class A
(A), Class B (B), or Averaging
(AVG) sensor type. The tool
will then provide the transmitter
specications, including the
accuracy at 8 and 16 mA,
accuracy at 25, 50 and 75% of
span, linearity and power output
shift.
The Tools Section of the Home Screen includes a number of helpful tools
for checking the accuracy and operation of sensors. These include:
Sect. 8: Tools Section of the Home Screen - Blü-Test Application
Fig. 23: Tools Section
of the Home Screen
Temperature Finder
mA/V
This tool will tell you
the temperature for a
given output value if you
enter the temperature
transmitter’s
temperature range and
output range.
Output Finder
mA/V
This tool will tell
you the output of
the sensor for a
given temperature
if you enter the
temperature
transmitter’s
temperature range
and output range.
Fig. 24: Temp Accuracy Tool
Fig. 25: Temp Finder Tool
Fig. 26: Output Finder Tool
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
8 of 12
Temperature to
Resistance
This tool will
calculate the
resistance of a
BAPI Thermistor
or RTD sensor
when you enter a
temperature. The
most common
Thermistors and
RTDs are included
in the tool.
Settings
The application Settings Screen
allows the user to make universal
changes to the units of measure
for any probes that the application
discovers. Changes to specic
probes can still be made via the
gauges view of the specic probe.
Resistance to
Temperature
This tool will
calculate the
temperature when
you enter the
resistance of the
BAPI Thermistor
or RTD. The
most common
Thermistors and
RTDs are included
in the tool. The
tool provides
the nominal
temperature plus
the high and low
values that would
still be within the
specied accuracy
of the sensor.
The Tools screen includes a number of helpful tools for converting
temperature to resistance and resistance to temperature for various
sensors. These include:
Sect. 8: Tools Section of the Home Screen - Blü-Test Application continued....
Fig. 28: Temp to
Resistance Tool
Fig. 29: Resistance to
Temp Tool
Fig. 30: Settings Tool
Fig. 27: Tools Section
of the Home Screen
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
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• Room Sensor measurement is done by holding the Blü-Test probe directly under the sensor enclosure for 3 minutes
or until the reading stabilizes. Body heat or breathing on the sensor is a major source of faulty readings, so holding
the Blü-Test probe at the button end and standing away from the sensor is the best way to ensure a good
measurement. The Probe Clip Hanger accessory (BA/PCH-1) simplies this by holding the probe for you (Fig. 31).
• Duct sensor measurement is done by drilling a 5/8” (15mm) hole in the duct near the duct sensor to be tested. Insert
the Blü-Test probe in the hole so the tip is as close as possible to the duct sensor under test. Hold the Blü-Test
probe in place for 2 minutes or until the reading stabilizes. When nished, remove the probe and cover the test hole
with duct tape.
• Duct averaging sensor verication is more dicult. Use the probe clip hanger to clip the probe directly to the
averaging sensor at 10 or more locations along its length. Leave the probe in place for 2 minutes or until the reading
stabilizes.
• Outside air sensor measurement requires that the Blü-Test probe be placed next to the outside air sensor. This may
require a ladder or extension pole. Hold the Blü-Test probe in place for 3 minutes or until the reading stabilizes. The
Probe Clip Hanger makes this easier by holding the probe for you (Fig. 32).
• Walk-in freezer/cooler measurements require that the probe be placed in or around the product racks and not near
the door. Do not let the probe tip touch the rack. The probe will require more time to stabilize due to the larger
dierential between room temperature and freezer/cooler temperature. Keep the probe in place for 15 to 20 minutes
or until the reading stabilizes. The Probe Clip Hanger makes this easier by holding the probe for you (Fig. 33).
• Immersion dry thermowell measurement can be done as long as the thermowell diameter is big enough. Remove the
immersion sensor to be tested and place the Blü-Test Probe into the thermowell. Hold the probe in place for 2
minutes or until the reading stabilizes.
• The piercing temperature probe is designed to be used with “Pete’s plugs”. It is also designed to be used when
piercing a medium is needed such as in insulation or soil.
Sect. 9: Best Measurement Practices
Fig. 31: Probe Clip
Hanger used on a
room sensor
Fig. 32: Probe Clip
Hanger used on an
outside air sensor
Fig. 33: Probe Clip
Hanger used on a
wire shelf
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
10 of 12
The Blü-Test unit is factory calibrated and comes with an NIST traceable certicate. The certicate is accessible
via the Probe Settings screen. You can tap the “View Calibration Certicate” button to view the certicate. The
Blü-Test should be re-calibrated once every year as a standard practice. The unit cannot be eld calibrated and
must be calibrated at the factory, which includes a thorough inspection, cleaning, calibration and an NIST traceable
re-certication.
Sect. 13: Recalibration
Possible Problem: The probe will not link-up with the Bluetooth display device.
1. Be sure the display device has the Blü-Test App loaded and is Android OS 5.1 or Apple iOS 10 or higher.
2. Be sure the display device and the probe are turned on and close enough to each other (<30ft or 10m open air).
3. Cycle power to both the probe and the display device.
4. Verify that Bluetooth communication is turned on in your device.
Possible Problem: The temperature or humidity is not accurate.
1. Make sure the Blü-Test probe tip is near to the reference or eld device.
2. Make sure that independent drafts are not aecting the reference or the Blü-Test probe.
3. Allow the Blü-Test probe to acclimate to the air before registering the reading. This may take between 2 to 5 minutes
Possible Problem: Probe will not go into logging mode.
1. Your onboard memory on the probe may be full. To clear the memory, go to the probe settings screen via the
dashboard. Tap “Delete all logs from probe” button to erase log les from the probe.
Possible Problem: Log le is not downloading from the probe.
1. The log le may be very large so give it time to download. A week-long log le can take up to 30 minutes to
download from the probe to the application. This is normal behavior.
Possible Problem: iOS smart device cannot mail csv les.
1. Make sure the standard iOS mail application is enabled on your smart device.
Sect. 12: Diagnostics
TEMPERATURE ONLY UNITS:
The Blü-Test temperature only units can be cleaned with a damp cloth with an alcohol-
based disinfectant or mild soap. A double-ended brush is included to help with cleaning the
seams on the body of the probe. Dry with a towel or warm blower after cleaning. The units
should not be submerged or placed in a dishwasher.
TEMPERATURE/HUMIDITY UNITS AND DIFFERENTIAL PRESSURE UNITS:
The Blü-Test temperature/humidity and dierential pressure units can be cleaned with a
damp cloth with an alcohol-based disinfectant or mild soap, but DO NOT get the tip of the
temp/humidity probe wet in any way, and do not let liquid enter the ports of the dierential
pressure unit. A double-ended brush is included to help with cleaning the seams on the
body the probe. Dry with a towel or warm blower after cleaning. The Blü-Test units should
not be submerged or placed in a dishwasher. If liquid does inltrate the probe tip of the
temp/humidity unit, remove liquid immediately with a paper towel or cotton swab and dry
with a warm blower. If grease inltrates the probe, the unit may be damaged. Send it back
to BAPI for service.
Note: The Piercing Temperature Probe is NSF certied and must be cleaned in a means that is acceptable to your local
food inspector and/or regulatory compliance manager.
Sect. 10: Cleaning
Handle the unit with care because dropping or high vibrations could cause the battery to shake loose or the probe
support to crack. The Blü-Test unit should be stored in a dry location with ambient temperatures between:
<1 month: -20 to 50°C (-4 to 122°F) ● 1-3 months: -20 to 40°C (-4 to 104°F) ● 3-12 months: -20 to 20°C (-4 to 68°F)
Sect. 11: Storage
Fig. 34: Brush included
for cleaning seams
Installation & Operations
Blü-Test Wireless Test Instruments
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
rev. 08/16/2141521_BluTest_G2_ins
11 of 12
Sect. 14: Specications
Power:
3.7V, 2,600 mAh Rechargeable Battery
Charging:
Standard USB Charger, 1.5A or greater, Micro-USB cable included
Measurement Range:
Temperature: -40 to 185°F (-40 to 85°C)
%RH: 5 to 95% Non-condensing @ -40 to 158°F (-40 to 70°C)
Dierential Pressure Low Range: -1 to +1” WC (-250 to +250 Pascal) @ -4 to 158°F (-20 to 70°C)
Dierential Pressure Standard Range: -5 to +5” WC (-1,250 to +1,250 Pascal) @ -4 to 158°F (-20 to 70°C)
Accuracy - Temperature Only Probes:
±0.18°F from -13 to 167°F (±0.1°C from -25 to 75°C)
Accuracy - Temp/Humidity Probes:
Temperature: ±0.36°F at 77°F (±0.2°C at 25°C)
%RH: ±1%RH at 77°F (25°C) from 10 to 85%RH
Accuracy - Dierential Pressure Probes:
Low Range: ±0.25% of FS Span, -1 to +1” WC (-250 to +250 Pa) at 77°F (25°C)
Standard Range: ±0.25% of FS Span, -5 to +5” WC (-1,250 to +1,250 Pa) at 77°F (25°C)
Burst Pressure - Dierential Pressure Probes:
Low Range: 415” WC (103 kPa) • Standard Range: 500” WC (124 kPa)
Communication:
Bluetooth LE, Class 2 v4.2
Data Logging:
10 second intervals
Environmental Operating Range:
Blü-Test Body: -22 to 158°F (-30 to 70°C)
Temperature Probes: -40 to 185°F (-40 to 85°C)
%RH Probe: 5 to 95% Non-condensing @ -40 to 158°F (-40 to 70°C)
Pressure Probe: -4 to 158°F (-20 to 70°C)
Agency:
CE EN 61326-1:2013 EMC, RoHS, NSF
FCC ID: Contains FCC ID 2AA9B04
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
FCC Rules Part 15: https://www.fcc.gov/media/radio/low-power-radio-general-information#PART15
Blü-Test App Specications
Application Program: Android OS 5.1 or Apple iOS 10 or higher required.
Specications subject to change without notice.
Building Automation Products, Inc.,
750 North Royal Avenue, Gays Mills, WI 54631 USA
Tel: +1-608-735-4800 • Fax: +1-608-735-4804
Google Play and the Google Play logo are trademarks of Google LLC.
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