Sigfox WSSFCB-NH3 User Manual Download Page 3

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Measuring range for NH3

0..100 ppm

Max detecting concentration

200 ppm

Repeatability / Resolution / Stability per month

< 10% of Reading value / 1 ppm / < 2% of Reading value

Zero stability

+/- 2 ppm

Working atmospheric pressure

101.3 Kpa +/- 10%

Sensor life

> 2 years

Humidity and Temperature sensor

Digital type, factory calibrated

Humidity measuring range / accuracy / resolution

0 .. 100 %RH, ± 2.0% / 0.1%

Temperature measuring range / accuracy / resolution

-40 .. + 85°C / ± 0.2°C / 0.1°C

Working temperature and humidity

-30 .. + 50°C, 15 .. 90% RH

Sensor housing / Rating

SS316/SS304 housing with 316SS sintered filter / for Indoor use

Sigfox SPECIFICATION:

Sigfox zones

select RC1-RC2-RC4

Antenna

Internal Antenna 2dbi

Battery

02 x AA Type 1.5VDC, working time up to 10 years (depends on
configuration)

RF Module complies to

CE, FCC, ARIB

Working temperature

-40°C..+60°C (using Energizer Lithium Ultimate AA battery)

Housing/Protection

Al Polycarbonate / IP67

Dimension / Net weight

H180xW73xD42 / < 400 grams

4. Dimensions

5. Operation Principle

Summary of Contents for WSSFCB-NH3

Page 1: ...sor with BLE Internal antenna Type AA battery 1 5VDC IP67 RC2 RC4 zones STEP 1 Select RC 1 Select RC zone RC zones selection 1 2 4 is RCZ1 RCZ2 RCZ4 refer to section 6 STEP 2 Check ID and PAC Use Modbus Configuration Cable to read the ID and PAC values Refer to register address 8 and 10 DEC USER GUIDE FOR SIGFOX READY AMMONIA GAS SENSOR WITH BLE WSSFCB NH3 This document is applied for the followin...

Page 2: ...line Integrated ambient humidity and temperature so the sensor can be measured by special algorithm expertise through modelling and compensating of external heat sources without the need of any additional components With Ultra low power design and smart ﬁrmware allow the complete Wireless and Sensor package run on 1 x AA battery 3 6V for 2 5 years with 15 minutes update It can support all regions ...

Page 3: ...asuring range accuracy resolution 40 85 C 0 2 C 0 1 C Working temperature and humidity 30 50 C 15 90 RH Sensor housing Rating SS316 SS304 housing with 316SS sintered filter for Indoor use Sigfox SPECIFICATION Sigfox zones select RC1 RC2 RC4 Antenna Internal Antenna 2dbi Battery 02 x AA Type 1 5VDC working time up to 10 years depends on configuration RF Module complies to CE FCC ARIB Working temper...

Page 4: ...e data has been sent REED SWITCH EVENT PRE CONDITION ACTION LED STATUS BUZZER STATUS ACTIVITIES POST CONDITION 2 START_UP Any state Move Magnet Key to contact point of REED SWITCH and hold 5s Buzzer beep 1 long time Blink WHITE Beep 1 long time See FW specs Device reset 1 FORCE_DATA Any state Move Magnet Key to contact point of REED SWITCH Buzzer beeps 1 time move Magnet Key away Blink SKY BLUE Be...

Page 5: ...rate bit s 600 600 600 600 600 600 600 Sigfox recommended EIRP dBm 16 24 16 24 14 16 16 Specifics Duty cycle 1 Frequency hopping Listen Before Talk Frequency hopping Listen Before Talk Duty cycle 1 Duty cycle is 1 of the time per hour 36 seconds For an 8 to 12 bytes payload this means 6 messages per hour 140 per day Frequency hopping The device broadcasts each message 3 times on 3 different freque...

Page 6: ...Step 1 Log in to the sigfox backend website Step 2 Click on Device Step 3 Click New Select a group Step 4 Fill in the required information 5 2 Add a device to the Backend Sigfox ...

Page 7: ...text as shown below Check the box as shown below to register as a prototype Note Some of our products may not have end product certification in time to add the product to Backend Sigfox please follow the steps below ...

Page 8: ...eset by two possible ways one is thanks to the reed power switch the other thanks to the DEVICE_RESET flag set in a downlink message Nominal flow 5 3 Device behavior Firmware Specification of NH3 Sensor Please read sections 5 5 to 5 8 carefully for a better understanding of the configuration 5 3 1 Start up features 5 3 1 1 Payload fields 5 3 1 2 Description 5 3 1 3 Frame 5 3 1 4 Flowchart ...

Page 9: ...Flow when coming from downlink ...

Page 10: ...the latest valid configuration that the device has received is provided through the LATEST_SIGFOX_DOWNLINK field The HEARTBEAT event is a Sigfox downlink exchange Thanks to the downlink message pre defined parameters of the device can be modified in order to change the device behavior 5 3 2 Heartbeat feature 5 3 2 1 Parameters 5 3 2 2 Payload fields 5 3 2 3 Description 5 3 2 4 Frame ...

Page 11: ...ared the latest valid configuration that the device has received is provided through the LATEST_SIGFOX_DOWNLINK field The PARAMETERS_UPDATE event is a Sigfox downlink exchange Thanks to the downlink message pre defined parameters of the device can be modified in order to change the device behavior 5 3 2 5 Flowchart 5 3 3 Parameters update feature 5 3 3 1 Payload fields 5 3 3 2 Description 5 3 3 3 ...

Page 12: ...ature NH3_EVENT_ENABLE NH3_EVENT_PERIOD For ALERT feature NH3_ALERT_ENABLE NH3_ALERT1_MAX_THRESHOLD NH3_ALERT2_MAX_THRESHOLD For BLE advertizing ALERT_FLAG_reset BLE_BROADCAST_ENABLE BROADCAST_PERIOD_normal TBC 5 3 3 4 Flowchart 5 3 4 NH3 feature 5 3 4 1 Parameters DLK ...

Page 13: ...duration The ALERT message will be sent right after the alert is detected with a DLK request The message will be sent again until a DLK is received every 10 minutes and until the level goes back to a normal level After a DLK is received the device will keep sending Alert message every 10 minutes until the alert is over During the ALERT procedure all other Sigfox events are cancelled Only NH3 measu...

Page 14: ...Sigfox Alert mode If the message counter reaches a value above the maximum possible tentative field value 255 in the NH3_ALERT message the tentative value should be kept at the maximum 255 ...

Page 15: ...BLE broadcast ...

Page 16: ...transmitted by the NH3 sensor it is attached to and only consider the beacon signal from that specific sensor Some simple synchronization mechanisms will be implemented in order to minimize the power consumption of the receiver to an acceptable level Depending on the beacon received the indicator device will have the behavior described in the following flowcharts No Signal 5 4 Light and sound indi...

Page 17: ...Signal received OK Signal received ALERT 1 ...

Page 18: ...CH with ID from Sigfox NH3 BLE BLE Indicator will beep2 times So you need to clear that ID before pairing the BLE Indicator with the new Sigfox device To clear the ID in BLE Indicator place magnet key to reed switch area marked as a magnet on the nameplate the BLE indicator will beep 1 time and the status led the led on side of the board blinkWHITE 5 5 Pairing with BLE Indicator It is recommended ...

Page 19: ...with ID from Sigfox NH3BLE BLE Indicator will operation normal details in Firmware Specifications Sound and light indicator Event Type bits EVENT_ID 4 COLOR START_UP 0 WHITE HEARTBEAT 1 GREEN PARAMETERS_UPDATE 2 PURPLE NH3_FORCE_DATA 3 SKY BLUE NH3 4 SKY BLUE NH3_ALERT 5 RED Not used 6 Not used 7 Not used 8 Not used 9 Not used 10 Not used 11 Not used 12 Not used 13 Not used 14 Not used 15 5 6 Even...

Page 20: ...0 day 0b100 every 48h 2 days 3 NH3 NH3_ENABLE Enable NH3 sensing 0b0 false NH3 sensing is disabled 0b1 true NH3 sensing is enabled 0b1 true 1 NH3 NH3_MEASURE_PERIOD Interval of time between two consecutive NH3 values are acquired 0b0000 every 1s 0b0001 every 2s 0b0010 every 5s 0b0011 every 10s 0b0100 every 20s 0b0101 every 30s 0b0110 every 1min 0b0111 every 2min 0b1000 every 5min 0b1001 every 10mi...

Page 21: ...e BLE advertising functionality 0b0 false BLE advertising feature is disabled 0b1 true BLE advertising feature is enabled 0b1 true BLE advertising feature is enabled 1 BLE BROADCAST_PERIOD_normal Broacasting period when the device is in normal mode 0b000 every 1s 0b001 every 2s 0b010 every 5s 0b011 every 10s 0b100 every 30s 0b101 every 1 min 0b110 every 2 min 0b111 every 5 min 0b011 every 10s 3 BL...

Page 22: ...ned integer Formula 8 bit_Alert_duration real_TempAlert_duration_in_hours Range 0 to 255 hours Accuracy 1 hour Example 0b00100000 0x20 32 32 hours 8 Tentative TENTATIVE Tentative number 8 bit unsigned integer Formula 8 bit_Tentativve 1 real_tentative Range 1 to 256 Accuracy 1 Example 0b00000111 0x7 7 7 1 tentative 8 8 Size Event Type EVENT_ID HW_VERSION FW_VERSION CURRENT CONFIGURATION 10 0 bits 4...

Page 23: ...s yes zeros yes yes yes yes User can set the down link data in Sigfox back end system in advance whenever the Sigfox node connected to base stations and with downlink waiting is enable at that time one time in 6 hours the downlink data will be loaded to Sigfox node The downlink data can be any configuration parameter Downlink Frame Format Downlink type 0b0000 5 8 3 Sigfox Downlink Frame Format The...

Page 24: ...W_ VERSION CURRENT CONFIGURATION NH3 28 0 bits 96 32 2 1 1 4 8 64 16 Payload data format EDDYSTONE HEADER DEVICE_ID ALERT_TYPEALERT_ FLAG_ reset HW_ NH3_ ERROR HW_ VERSION FW_ VERSION LATEST_ SIGFOX_ DOWNLINK NH3 BLE Broadcast OK ALERT_TYPE 0 0x0201040303AAFEXX16AAFE20 yes yes yes yes yes yes yes yes 5 9 BLE Broadcast Format ...

Page 25: ...ER DEVICE_ID ALERT_TYPEALERT_ FLAG_ reset HW_ NH3_ ERROR HW_ VERSION FW_ VERSION LATEST_ SIGFOX_ DOWNLINK NH3 BLE Broadcast ALERT 1 ALERT_TYPE 1 ALERT_FLAG_reset 0 0x0201040303AAFEXX16AAFE20 yes yes yes yes yes yes yes yes Size Broadcast Type EDDYSTONE HEADER DEVICE_ID ALERT_TYPEALERT_ FLAG_ reset HW_ NH3_ ERROR HW_ VERSION FW_ VERSION CURRENT CONFIGURATION NH3 28 0 bits 96 32 2 1 1 4 8 64 16 Payl...

Page 26: ...ones selection 1 2 4 is RCZ1 RCZ2 RCZ4 277 115 3 16 1 TX_POWER 20 int16 Read Write RF Tx power 278 116 3 16 2 CONSTANT_A 1 float Read Write Constant a for scaling measured value 280 118 3 16 2 CONSTANT_B 0 float Read Write Constant b for scaling measured value 282 11A 3 16 2 HIGH_CUT 1E 09 float Read Write High cut value for calculated value 284 11C 3 16 2 LOW_CUT 1E 09 float Read Write Low cut va...

Page 27: ... daviteq com wl id yDOjE5d6kqFlGNVVlMdFg19Aad6aw0Hs Step 2 Plug the configuration cable to Computer via USB port Serial port configuration on computer 9600 baud None parity 1 stop bit Reading data by Function 3 Writing data by Function 16 NOTE The Modbus configuration can be done in the first60s after power up the Sigfox node After 60s if user can not finish the configuration user need to reset th...

Page 28: ...onfiguration port Step 5 Import the configuration file by importing the csv file Go to MENU FILE Import New select the file with name NH3 Sensor 2021 10 30 Template V1 2 csv in the link below Then click Connect CONFIGURATION TEMPLATE FILE FOR SIGFOX WSSFC NH3 ...

Page 29: ...be reduced significantly 8 Installation 8 1 Locate the good place for Radio signal ATTENTION DO NOT install the Sigfox sensor or its antenna inside a completedmetallic box or housing because RF signal can not pass through metallic wall The housing is made from Non metallic materials like plastic glass wood leather concrete cement is acceptable 8 2 Mounting Installation method Mount to the wall The...

Page 30: ...Steps for battery installation Step 1 Using M4 Hex key to open the cover 8 3 Battery installation ...

Page 31: ...hen insert 02 x AA 1 5VDC battery please take note the poles of the battery Step 3 Insert the top plastic housing Please note the 2 reed joint ATTENTION REVERSED POLARITY OF BATTERIES IN 10 SECONDS CAN DAMAGE THE SENSOR CIRCUIT ...

Page 32: ...c switch has malfunctioned Or place the Magnet key not right position Locate the correct position for magnet key Read the status of the magnetic switch via modbus when powering or attaching the battery to see if the magnetic switch is working 4 Node has blinked LED when sending RF but the base station cannot received Out of the number of RF packages of uplink per day 140 packages day Check on the ...

Page 33: ...e in 1 of 2 ways as below Pure air can be used as a Zero standard for NH3 calibration Simply place the sensor in a clean environment with pure air The ambient temperature should be from 20 to 25 oC Or using high purity Nitrogen gas 99 999 as a zero standard gas Attach the calibration cap into the sensor and turn on the Valve to provide the N2 flow into the sensor Waiting for the zero gas to enter ...

Page 34: ... will send 1 value of A or B For example A 1 1 and B 0 2 Here are the downlink message for setting A B Parameter PRM_ADDRESS PRM_LENGTH PRM_VALUE DOWNLINK_TYPE Full Downlink bytes 1 1 4 2 8 CONSTANT_A 0x16 0x04 4 0x3F8CCCCD 1 1 0x0005 16043F8CCCCD0005 CONSTANT_B 0x18 0x04 4 0x3E4CCCCD 0 2 0x0005 18043E4CCCCD0005 HIGH_CUT 0x1A 0x04 4 0x447A0000 1000 0x0005 1A04447A00000005 LOW_CUT 0x1C 0x04 4 0x000...

Page 35: ...02 pins of the sensor as below picture Plug the sensor module into the device Make sure the 03 pins of the sensor are completely inserted inside the sockets Please see the below picture Place the filter again and tighten it 12 Support contacts ...

Page 36: ...G Nam Hung Vuong Res An Lac Ward Binh Tan Dist Ho Chi Minh City Vietnam Tel 84 28 6268 2523 4 ext 122 Email info daviteq com www daviteq com Revision 26 Created Mon Nov 8 2021 7 07 AM by Kiệt Anh Nguyễn Updated Tue Jan 11 2022 10 20 AM by Lộc Vĩnh Nguyễn ...

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