SRETT BUMBLEBEE User manual

1003105.AB draft
Bumblebee Installation Instruction /
Statement of Conformity
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BUMBLEBEE
Wireless pressure and temperature sensors for
potentially explosive atmospheres
Capteur de pression et de température sans fil pour
atmosphères potentiellement explosives
Installation instructions
Instructions d’installation
Please keep this manual with the Bumblebee device
Il est recommandé de garder ce manuel avec l’appareil Bumblebee
0459

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Bumblebee Installation Instruction /
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Bumblebee Installation Instruction
English Version: page 3
Version Française: page 28
Declaration of conformity
UE: page 54
PED: page 61

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ENGLISH VERSION

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Contents
1. GENERAL INFORMATION ................................................................................. 8
1.1. USAGE AND APPLICATIONS 8
1.2. FCC NOTICE 8
1.3. INSTALLATION AND SERVICING 9
1.4. DEVICE DESCRIPTION 10
1.5. THEORY OF OPERATIONS 10
1.6. INTEGRATION OF BUMBLEBEE IN AN IOTSYSTEM 11
1.7. CONFORMITY TO REGLEMENTATION 11
1.7.1. RADIO FREQUENCY BANDS 11
1.7.2. APPLIED EUROPEAN REGLEMENTATIONS 11
1.8. OPERATION IN EXPLOSIVE ATMOSPHERES 12
1.9. PRODUCT LABELLING 12
1.9.1. LABEL ATEX /IECEX /UKCA 12
1.9.2. LABEL US MARKET 13
1.9.3. SYMBOLS USED FOR THE LABEL 13
1.9.4. SENSOR TYPES AND VARIANTS 13
2. SPECIFICATIONS............................................................................................. 14
2.1. EXTERNAL DIMENSIONS WITH ANH42 ANTENNA 14
2.2. HOUSING 14
2.3. ENVIRONMENT 14
2.4. BATTERY AND AUTONOMY 14
2.5. OPERATIONS 15
2.6. PRESSURE MEASUREMENT 15
2.7. TEMPERATURE MEASUREMENT 15
2.8. WIRELESS COMMUNICATION 15
3. PRODUCT INSTALLATION .............................................................................. 16
3.1. SPECIFIC CONDITIONS OF USE FOR INTRINSICALLY SAFE INSTALLATIONS 16
3.2. CHECKING DEVICE CONNECTIVITY 16
3.3. MECHANICAL INSTALLATION 17
3.3.1. MECHANICAL INSTALLATION OF BUMBLEBEE PRESSURE SENSOR 17
3.3.1.1. DESCRIPTION OF THE PRESSURE FITTING ASSEMBLY 17
3.3.1.2. ASSEMBLING UP THE PRESSURE FITTING 17
3.3.2. MECHANICAL INSTALLATION OF BUMBLEBEE TEMPERATURE SENSOR 18
3.4. INSTALLING ANTENNA 19
3.5. CONNECTING BUMBLEBEE TO THE GROUND 19
3.6. LOCKING THE LID TO THE BODY 19
3.7. PROCEDURES TO CONTROL DEVICE OPERATIONS WITH THE LED BUTTON 19
3.7.1. PROCEDURE A. CHECKING BUMBLEBEE OPERATING STATUS 19
3.7.2. PROCEDURE B. BUMBLEBEE ACTIVATION,REBOOT AND CONNECTIVITY TEST 20
4. MAINTENANCE OPERATIONS........................................................................ 21
5. BATTERY REPLACEMENT.............................................................................. 21
5.1. CONDITIONS OF BATTERY REPLACEMENT 21
5.2. BATTERY REPLACEMENT PROCEDURE 21

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6. ADVANCED OPERATIONS .............................................................................. 22
6.1. DATA RECORDS 22
6.1.1. PROVISIONING THE DEVICE ONTO THE NETWORK 22
6.1.2. NETWORK COVERAGE IN THE DEPLOYMENT ZONE 22
6.1.3. APPLICATIVE UPLINK TRANSMISSION AT DEVICE’S INITIATIVE 22
6.1.3.1. UPLINK MESSAGE FORMAT 22
6.1.3.2. INFO MESSAGE DESCRIPTION,PORT 73 (UP TO FIRMWARE VERSION 2.X.X)23
6.1.3.3. INFO MESSAGES TYPE J(PORT 74) (FROM TO VERSION FIRMWARE 3.0.X)23
6.1.3.4. MINI NEW DATA MESSAGE DESCRIPTION,PORT 77 23
6.1.3.5. NEW DATA MESSAGE DESCRIPTION,PORT 78 (UP TO FIRMWARE VERSION 2.X.X)24
6.1.3.6. DATA MESSAGES TYPE K(PORT 75) (FROM FIRMWARE VERSION 3.0.X)24
6.1.3.7. DATA MESSAGE FORMAT ACCORDING TO FIRMWARE VERSION AND REGION 24
6.1.3.8. STATUS BYTE DESCRIPTION 25
6.1.3.9. INFO MESSAGES TYPE E(PORT 69) 25
6.2. MANAGING BATTERY LEVEL 25
6.2.1. LOW BATTERY INDICATOR 25
6.2.2. MANAGING BATTERY LEVELS 26
6.3. USING MOBILE APPLICATION TO CONNECT TO THE BUMBLEBEE 26
6.3.1. DEVICE OPERATING STATUS 26
6.3.2. DOWNLOADING DATA RECORDS 26
6.3.3. MODIFYING OPERATING PARAMETERS 26
6.3.4. OTHER INFORMATION RELATIVE TO THE DEVICE 27
6.3.5. BOOTLOADING 27
7. STORAGE ......................................................................................................... 27
8. REPAIRING ....................................................................................................... 27
9. RECYCLING...................................................................................................... 27
10. CUSTOMER SERVICE...................................................................................... 27
1. INFORMATIONS GÉNÉRALES ........................................................................ 33
1.1. UTILISATION ET APPLICATIONS 33
1.2. NOTICE FCC 33
1.3. INSTALLATION ET ENTRETIEN 34
1.4. DESCRIPTION DE L’APPAREIL 34
1.5. THÉORIE DES OPÉRATIONS 35
1.6. INTEGRATION DE BUMBLEBEE DANS UN SYSTEME IOT 35
1.7. CONFORMITÉ À LA RÉGLEMENTATION 35
1.7.1. BANDES DE RADIOFRÉQUENCES 35
1.7.2. RÉGLEMENTATIONS EUROPÉENNES APPLIQUÉES 36
1.8. FONCTIONNEMENT EN ATMOSPHÈRES EXPLOSIVES 36
1.9. ÉTIQUETAGE DES PRODUITS 37
1.9.1. ETIQUETTE ATEX /IECEX /UKCA 37
1.9.2. ETIQUETTE US (MARCHE AMERICAIN) 37
1.9.3. SYMBOLES UTILISÉS POUR L’ÉTIQUETTE 38
1.9.4. TYPES ET VARIANTES DE CAPTEURS 38
2. SPÉCIFICATIONS............................................................................................. 39
2.1. DIMENSIONS EXTERNES AVEC ANTENNE ANH42 39
2.2. BOITIER 39

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2.3. ENVIRONNEMENT 39
2.4. BATTERIE ET AUTONOMIE 39
2.5. OPÉRATIONS 40
2.6. MESURE DE LA PRESSION 40
2.7. MESURE DE LA TEMPÉRATURE 40
2.8. COMMUNICATION SANS FIL 40
3. INSTALLATION DU PRODUIT.......................................................................... 41
3.1. 3.1. CONDITIONS PARTICULIERES D’UTILISATION DES INSTALLATIONS A SECURITE INTRINSEQUE. 41
3.2. VERIFICATION DE LA CONNECTIVITE DE L’APPAREIL 41
3.3. INSTALLATION MÉCANIQUE 42
3.3.1. INSTALLATION MECANIQUE DU CAPTEUR DE PRESSION BUMBLEBEE 42
3.3.1.1. DESCRIPTION DE L’ENSEMBLE DU RACCORD SOUS PRESSION 42
3.3.1.2. ASSEMBLAGE DU RACCORD SOUS PRESSION 42
3.3.2. INSTALLATION MECANIQUE DU CAPTEUR DE TEMPERATURE BUMBLEBEE 43
3.4. INSTALLATION DE L’ANTENNE 44
3.5. CONNEXION DU BUMBLEBEE AU SOL 44
3.6. VERROUILLAGE DU COUVERCLE SUR LE CORPS 44
3.7. PROCEDURES POUR CONTROLER LE FONCTIONNEMENT DE L’APPAREIL AVEC LE BOUTON LED 44
3.7.1. PROCEDURE A. VERIFICATION DE L'ETAT DE FONCTIONNEMENT DU BUMBLEBEE 44
3.7.2. PROCEDURE B. ACTIVATION DU BUMBLEBEE,REDEMARRAGE ET TEST DE CONNECTIVITE 45
4. OPÉRATIONS DE MAINTENANCE.................................................................. 46
5. REMPLACEMENT DE LA BATTERIE .............................................................. 46
5.1. CONDITIONS DE REMPLACEMENT DE LA BATTERIE 46
5.2. PROCEDURE DE REMPLACEMENT DE LA BATTERIE 46
6. OPÉRATIONS AVANCÉES............................................................................... 46
6.1. ENREGISTREMENTS DE DONNÉES 46
6.1.1. PROVISIONNEMENT DE L'APPAREIL SUR LE RESEAU 47
6.1.2. COUVERTURE RESEAU DANS LA ZONE DE DEPLOIEMENT 47
6.1.3. TRANSMISSION DES LIAISONS MONTANTES APPLICATIVES A L'INITIATIVE DU DISPOSITIF 47
6.1.3.1. FORMAT DES MESSAGES DE LIAISON MONTANTE 47
6.1.3.2. DESCRIPTION DU MESSAGE D'INFORMATION,PORT 73 (JUSQU'A LA VERSION 2.X.X DU MICROLOGICIEL)48
6.1.3.3. MESSAGES D'INFORMATION TYPE J(PORT 74)(A PARTIR DE LA VERSION FIRMWARE 3.0.X)48
6.1.3.4. DESCRIPTION DU MESSAGE MINI NEW DATA,PORT 77 48
6.1.3.5. DESCRIPTION DU NOUVEAU MESSAGE DE DONNEES,PORT 78 (JUSQU'A LA VERSION 2.X.X DU FIRMWARE)
49
6.1.3.6. MESSAGES DE DONNEES DE TYPE K(PORT 75) (A PARTIR DE LA VERSION 3.0.X DU FIRMWARE)49
6.1.3.7. FORMAT DU MESSAGE DE DONNEES FONCTION DE LA VERSION FIRMWARE ET DE LA REGION 49
6.1.3.8. DESCRIPTION DE L'OCTET D'ÉTAT 50
6.1.3.9. MESSAGES D'INFORMATION TYPE E(PORT 69) 50
6.2. GESTION DU NIVEAU DE LA BATTERIE 51
6.2.1. INDICATEUR DE BATTERIE FAIBLE 51
6.2.2. GESTION DES NIVEAUX DE BATTERIE 51
6.3. UTILISATION DE L'APPLICATION MOBILE POUR SE CONNECTER A LA BUMBLEBEE 51
6.3.1. ÉTAT DE FONCTIONNEMENT DE L'APPAREIL 51
6.3.2. TÉLÉCHARGEMENT DES ENREGISTREMENTS DE DONNÉES 52
6.3.3. MODIFICATION DES PARAMÈTRES DE FONCTIONNEMENT 52
6.3.4. AUTRES INFORMATIONS RELATIVES AU DISPOSITIF 52

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6.3.5. TÉLÉCHARGEMENT D'AMORÇAGE 52
7. STOCKAGE....................................................................................................... 52
8. RÉPARATION ................................................................................................... 53
9. RECYCLAGE..................................................................................................... 53
10. SERVICE CLIENT.............................................................................................. 53

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1. GENERAL INFORMATION
1.1.Usage and applications
●WARNING,RISK TO LIFE OR PROPERTIES
Perform a whole system risk assessment before using this product for any application involving serious risks to
life or property. Ensure that the product is properly rated and functionally suitable for the application.
●WARNING,PERSONAL INJURY
Never use this product as primary safety or emergency device, or in applications where a functional failure
would result in a personal injury or property damage.
●WARNING,AIRCARFT SAFETY
Deactivated the product before shipping on aircraft.
●CAUTION, SPECiFIC CONDITIONS OF USE IN EXPLOSIVE ATMOSPHERE
The product is suitable for potentially explosive atmospheres only to the extent that i.) those atmospheres are
compatible with the marking, detailed in section 1.7, AND, ii.) that the specific conditions of use, detailed in
section 3.1, are applied.
●CAUTION, PRODUCT DAMAGE FROM OVERPRESSURE
Exceeding product pressure rating may result in death or serious injury. Consider both static and dynamic
process pressure when evaluating the product suitability to a specific application.
●CAUTION, ERRATIC DATA TRANSMISSION
Do not use in applications where transmission failure may induce damage to life or property. The product relies
on wireless transmission and hence may experience transmission failure resulting from electromagnetic
interferences with other devices emitting in the same frequency band.
●CAUTION, PRODUCT DAMAGE FROM MEDIA COMPATIBILITY
Only use this product for processes that involve effluents chemically compatible with the product materials.
1.2.FCC Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
-This device may not cause harmful interference, and
-this device must accept any interference received, including interference that may cause undesired
operation.
•NOTE
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operating in a commercial environment. This equipment generates, uses, and can radiate
radiofrequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user
will be required to correct the interference at his own expense.
•FCC Caution
Any changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate this equipment.
This device must not be co-located or operating in conjunction with any other antenna or transmitter.

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•Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20 cm (7.87 in) between the radiator and
your body.
1.3.Installation and servicing
●WARNING
Installing and servicing the product in a manner that is not specified in these instructions may result in death or
serious injury.
●WARNING
Substitution of components or disassembling the product may impair its safety in explosive atmospheres, and
result in explosion hazard.
●CAUTION
Only qualified and fully trained operators, fully aware of hazards related to pressure and to explosive
atmospheres, should be involved in installation and servicing operations.
●CAUTION
All pressure fitting assemblies should be leak tested using industry standard procedures in accordance with the
severity of leak related hazards.

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1.4.Device description
Bumblebee is a heavy duty, wireless, battery powered, intrinsically safe, fully calibrated measurement device
intended for pressurized equipment in potentially explosive atmospheres. Bumblebee communicates via a
LoRaWAN wireless network.
Bumblebee temperature sensor is based on a platinum thermistor.
Bumblebee pressure sensor is based on a temperature compensated piezo resistive pressure sensor.
Figure 1. Bumblebee pressure (left), and temperature sensor (right)
LED-Button: The LED-Button allows for interaction with the user.
Antenna: The Antenna is used for LoRa radio transmission. It is removable for transport.
Removable Lid: The lid can be opened by a qualified technician to exchange battery. The lid has a glass
window through which Bluetooth signal is transmitted.
Locking Screw: The removable lid can be locked to the body. This is necessary if the product vibrates.
Ground Screw: For safety purposes, the Bumblebee device shall be connected to earth ground.
1.5.Theory of operations
The Bumblebee sensor periodically acquires pressure or temperature data, records them in its internal memory,
and transmits them wirelessly. Data records are time stamped, thanks to an internal clock.
Bumblebee can be configured, calibrated and troubleshooted via BLE (BlueTooth Low Energy) by using
Bumblebee mobile app.
Bumblebee is delivered deactivated, in a low power mode, where acquisition and radio communication are
disabled. It is activated with the LED button.
The batteries can be delivered outside the sensor at the time of delivery.

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1.6.Integration of Bumblebee in an IoT system
Bumblebee should be deployed within an IoT (Internet of Things) system comprising an LoRaWAN wireless
network that covers the location where the device is deployed. An Information system is needed to make use
of the data transmitted by the device via LoRaWAN.
Figure 2 Bumblebee sensors within an IoT system
1.7.Conformity to reglementation
1.7.1. Radio frequency bands
Bumblebee device integrates a LoRa radio transmitter and a BLE (Bluetooth Low Energy) transmitter.
BLE operates in the worldwide 2,4-2,5 GHz ISM frequency band.
LoRa is configured to operate according to a specific frequency plan to comply with local regulations. The
current frequency plan is defined by the firmware version. The firmware version is in the following format:
v.X.Y.Z.
Z defines the frequency plan:
●Z =0: AS923
●Z =1: AU915
●Z =5: EU868
●Z =6: IN865
●Z =7: KR920
●Z =8: US915
●Z =9: US915_hybrid.
Warning: the antenna used with the device should be adapted to the frequency plan. There are two types of
antennas:
●ANH42 for Z= 5 and 6 (EU868 and IN865)
●ANH52 for Z= 0,1,7,8 and 9 (AS923, AU915, KR920, US915, US915_hybrid).
1.7.2. Applied European reglementations
The product complies with the following European regulations:
●2014/53/EU RED (Radio Equipment Directive)
●2012/19/EU WEEE2 (Waste Electrical and Electronics Equipment)
●2011/65/EU ROHS2 (Reduction Of Hazardous Substances)
●2014/34/EU Explosive atmospheres
●1907/2006 REACH (Registration, Evaluation, Authorization and restriction of Chemicals)
●2014/30/EU EMC (Electromagnetic compatibility)

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1.8.Operation in explosive atmospheres
Bumblebee device is certified by LCIE with the number 19 ATEX 3003 X. The complete marking is:
0081: II 1/2 G Ex ia IIC T4 Ga/Gb.
Symbol definition
LCIE N°: 19
ATEX 3003 X
Notified organism certified
X: specific conditions of use apply, see section 3.1
0081
Product is marked CE ATEX by notified organism LCIE 0081
II 1/2 G …..
Ga/Gb
II 1 G ….. Ga : ATEX zone 0 without antenna
II 2 G….. Gb : ATEX zone 1 with antenna
Ex ia IIC T4
Protection mode intrinsic safety ia
Gaz group IIC
Temperature class T4: 135°
1.9.Product labelling
1.9.1. Label ATEX / IECEX / UKCA

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1.9.2. Label US market
1.9.3. Symbols used for the label
Read the manual
IP66
Protected from dust and powerful jets
of water
Name and address of
manufacturer
Electronic equipment subject to
selective collection facilities for
recovery and recycling
Catalogue number
100XXXX - V is the part
number (P / N) and the
variant
ATEX marking
Serial number
Operating range
Batch number
YYYY is manufacturing year
MM is manufacturing month
The device is emitting radio frequency
waves
CE marking
0081: Notified body
Product supply voltage and current
1.9.4. Sensor types and variants
Sensor type appearing on the label is either Pressure to identify pressure sensor and Temperature to identify
temperature sensor:
●Part number (P/N) for pressure sensor is 1001910 or P*******2, variant indicates the maximum pressure range
●Part number (P/N) for temperature sensor is 1001920 or T********2, variant indicates the length of the
thermowell.

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2. SPECIFICATIONS
2.1.External dimensions with ANH42 antenna
Without ½ NPT Connection
2.2.Housing
Weight (including battery)
1.3 kg
Material
Aluminum with epoxy paint.
Protection class
IP66
2.3.Environment
Operating temperature range for safe operation in
explosive athmospheres for T4 ATEX certification
-20°C to 55°C
Storage and transport temperature range in deactivated
mode
-40°C to 60°C
2.4.Battery and autonomy
Total battery nominal capacity
5,2 Ah
Battery chemistry
Lithium Thionyl Chloride
Product shelf life before activation if stored below 30°C
3 years
Autonomy for 5 minutes acquisition period
1,5 years
Autonomy for 10 minutes acquisition period
2,5 years
Autonomy for 15 minutes acquisition period
3,5 years
Autonomy for acquisition period above 30 minutes
5 years

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Lost of autonomy per year in deactivated mode
6%
2.5.Operations
Minimum acquisition period
5 min
Acquisition period by default
1h
Time keeping accuracy
20 minutes/year maximum drift
Size of internal memory for measurement records
10 years, FIFO
2.6.Pressure measurement
Material in contact with process effluents
316 L (no elastomer)
Temperature range of the sensor calibration
-20°C to 80 °C
Measurement range
[0- FS] bar pseudo relative
Available range full scale (FS)
10, 100, 400 bar
Overall measurement accuracy for 10 and 100 bars FS
0.1% FS
Overall measurement accuracy for 400 bars FS
0,3 % FS (0,1% available on request)
Maximum drift over 5 years period
0,2% FS
2.7.Temperature measurement
Material in contact with process effluents
Inconel
Process temperature absolute maximum range for safe
operations
-60°C to 200 °C
Calibrated process temperature range
-20 ° C to 180 °C
Accuracy
±0.5°C
Résolution
0,1°C
Thermowell length availability
380 –450 –500 –550 –600 –650 mm
2.8.Wireless communication
BLE
BLE protocol
Version 4.1, low energy consumption
Frequency bandwidth
2.400-2.4835 GHz
Encryption
Provided by BLE protocol
Operating range
Within a radius of 2 meters
Power Output
<1 dBm

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LoRa
LoRa protocol
LoRaWan 1.0.2
Frequency bands
863-870 or 902-928 Mhz
Encryption
Provided by LoRaWan protocol
Transmission range
Dependent on network setup and
topography (Indicative maximum range:
urban area 2-3 km, Rural area 5-7 km
Direct line of sight 12 km, up to 25 km with
6dBi gain gateway antenna on a 50 m
mast)
Power Output
10 dBm
3. PRODUCT INSTALLATION
3.1.Specific conditions of use for intrinsically safe installations
●THE FOLLOWING CONDITIONS MUST BE MET TO ENSURE THAT THE PRODUCT IS NOT CAPABLE OF
CAUSING IGNITION IN EXPLOSIVE ATMOSPHERES SPECIFIED BY THE MARKING.
i. Equipment is an autonomous apparatus powered supplied, and shall only be connected to intrinsically safe
apparatus certified for the intended use. This association shall comply with the requirements of the standard
EN 60079-25.
ii. ATEX Operating ambient temperature range: from -20°C to +55°C.
iii. Measured process temperature range:
i. P/N 1001910 or P*******2 : pressure sensor: -20°C to +80°C
ii. P/N 1001920 or T********2 : temperature sensor -60°C to +200°C
iv. Equipment is powered by two cells SAFT LS 14500, 3,6V.
v. When using type ANH42 or ANH52 antenna provided by SRETT
1
, it shall be installed in EPL Gb zone 1 or
higher.
vi. The product contains more than 15% of Aluminum. It must be mounted in such a manner as to eliminate the
risk of sparks caused by friction or impact.
3.2.Checking device connectivity
You may want to check the device connectivity to the LoRa network before proceeding to the mechanical
installation.
For that, screw the antenna to the device. Position the device at the exact location where it will be installed, and
with its final orientation (antenna pointing upward). Go through Procedure B (see section 3.7).
You may also use the Bumblebee mobile app to check LoRa signal to ratio (see section 6.3.1).
1
Other antennas or remote antenna may be used if the system associating antenna and device compies with EN 60079-25

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Remove the antenna before going through the mechanical installation.
3.3.Mechanical installation
3.3.1. Mechanical installation of Bumblebee Pressure Sensor
Necessary materials:
●one 4 mm flat head screwdriver
●one Allen key (hex) 2mm
●one dynamometric 32 mm open-end wrench, and one 32 mm open-end wrench
Procedure duration (estimated): 15 minutes
3.3.1.1. Description of the pressure fitting assembly
Bumblebee is connected to the process equipment through a pressure fitting assembly which is in two steps :
●A coupling compatible with Autoclave Engineers® SF562CX
2
/
3
. The male part of the coupling is the nose of the
Bumblebee device itself
●A commercially available adapter, with the female part of the SF562CX coupling on the one end, and the specific
connection to the process on the other end.
3.3.1.2. Assembling up the pressure fitting
The elements of the assembly are presented on Figure 4.The following instructions are also available form
Autoclave Engineers® documentation.
2
Autoclave Engineers® connections are high quality metal to metal seals, that tolerate multiple reassemblies.
3
Copper Anti-Seize Lubricant: P-3580 (1 pound can) P-3580-8 (1/2 pound can) Moly Anti-Seize Lubricant: P-
9766 (1 pound can)
Adapter
SF562CX coupling
Connection
specific to the
process
Picture of Bumblebee
pressure connection

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Step 1. Lubricate male threads of Gland with a metal based thread lubricant.
Slip Gland on Bumblebee nose. Screw Thread Collar on Bumblebee Nose until one to two threads are exposed
between collar and cone. Note that the thread is left handed.
Step 2. Assemble the Adapter to the process equipement via the Process Connection (apply the procedure
recommended for this specific connection).
Step 3. Insert Bumblebee nose in the Adapter already attached to the process. Engage the Gland.
At this step, orient the BumbleBee so that the antenna points vertically, then tighten Gland “fingertight”.
Step 4. With torque wrench tighten Gland to 55 ft.-lbs. (74.5 N.m) or when molly coated to 40 ft.-lbs (54.4 74.5
N.m). When tightening, the use of an additional wrench is recommended to hold the Adapter. Ensure that the
Bumblebee doesn’t not rotate.
Figure 4. Pressure fitting assembly.
3.3.2. Mechanical installation of Bumblebee Temperature Sensor
Necessary materials:
●One 4 mm flat head screw driver
●One Allen key (hex) 2mm
●One 22 mm open wrench and one 27 mm open wrench
Procedure duration: 30 minutes
Bumblebee temperature sensor is intended to be used with a thermowell, see figure 5.
Step1. Fix the process connector of the lower extension to the thermowell using a 27mm open end
wrench (Figure 5 left)
Step 2. Insert the gauge and the upper extension through the lower extension and inside the
thermowell (Figure 5 left)
Step 3. Once the end of the lower extension is in contact with the bottom of the thermowell, lower the
connecting head by approximately 10mm (in order to compress the measuring element’s spring).
Mark this position (f) (Figure 5 left)
Step 4. Raise the connecting head by 5mm (to retain a sufficient spring effect to ensure that the
measuring element is maintained at the bottom of the thermowell and that vibrations are damped)
(Figure 5 middle)

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Step 5. Orientate the Bumblebee head as required, so that the antenna points upward.
Step 6. Fasten the lower extension on the upper extension using a 22mm open end wrench(Figure 5
right).
figure 5: Temperature probe mechanical assembly
3.4.Installing antenna
Before installing the antenna, please make sure that its reference matches the frequency plan of the country
you are operating with (see Section 1.6.1).
The antenna is screwed onto the antenna connector, and should be oriented to point upward, so as to maximize
the reception of radio waves. Ensure that Antenna screw is tight.
3.5.Connecting Bumblebee to the ground
The Bumblebee device needs to be connected to ground potential. If the connection is not properly insured
through the pressure fitting, this function is performed by connecting the ground screw (see figure 1) to a
terminal to the earth ground.
We recommend the use of AWG 9 wire, for this connection.
The connection to the ground should insure that the electrical resistance of the connection from the housing to
the ground is less than 10 gigaohms.
3.6.Locking the lid to the body
The lid may unscrew itself from its body when vibration occurs. Use the locking screw (figure 1) to prevent it.
This operation requires an Allen key (hex) 2mm.
3.7.Procedures to control device operations with the LED button
3.7.1. Procedure A. Checking Bumblebee operating status
Procedure A can be done at any time, as it does not impact device operations. It is used to:
●Check device operating status

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●Open a Bluetothh connection (see section 6.3).
Procedure A: press briefly the LED button and look for LED feedback carefully.
The table below summarizes LED signal feedback after procedure A.
LED Behaviour
Status
Steps to carry out
Steady during 5 s
Bumblebee is activated and
properly connect to Lora
Network
None
Blinks twice
Bumblebee is deactivated.
Proceed to activation
Refer to procedure B
Blinks continuously during 10 s.
Device defective
Contact After sales service
No LED signal
Batteries are down
Proceed to batteries replacement
Perform procedure B.
If there is still no LED signal with new
battery, contact aftersale service.
3.7.2. Procedure B. Bumblebee activation, reboot and connectivity test
Procedure B can be done at any time, it triggers the following:
●Activate the device
4
●Reboot
5
●Acquisition of one measurement
●Attempt to join the LoRaWAN network
6
●If LoRaWAN network is successfully joined
oTransmission of a Status Message (see section 6.1.3.2),
oTransmission of a Data Message (see section 6.1.3.4 or 6.1.3.5) after a few minutes
7
Procedure B : Press continuously the button until the LED goes OFF (which happens after 5s). Wait for up to 30
seconds, and look for LED feedback carefully.
The table below summarizes LED signal feedback after procedure B.
LED Signal feedback will appear after 30 s.
LED Behaviour
Status
Steps to carry out
Steady during 5 s
Bumblebee is activated and
properly connect to Lora
Network
None
Blinks twice
Bumblebee is active but failed to
joined LoRaWAN network
Check the LoRAWAN network coverage, try
Procedure B again8.
4
The device is delivered deactivate. After activation, it remains active until it is deactivated by using the Bumblebee mobile
app.
5
By rebooting, the device restarts periodic acquisition acquisition. Subsequent dates and times at which measurements are
acquired, are modified accordingly.
6
The device makes 3 attempts at connecting to the network.
7
Typically less than 5 minutes, depending on LoRaWan network load.
8
If you chose to leave the device without further intervention, it will attempt to join 3 times the network, and may
eventually succeed. The success can be seen from the application software.