Sigfox WSSFC-ULC Series User Manual
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Sigfox WSSFC-ULC Series User Manual

Ultrasonic level sensor
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USER GUIDE FOR SIGFOX
ULTRASONIC LEVEL SENSOR
WSSFC-ULC
WSSFC-ULC -MN-EN-01
This document is applied for the following products
SKU
WSSFC-ULC
WSSFC-ULC-9-01
Item Code
WSSFC-ULC-8-01
0. Configuration Check List
STEP 1: Select RC
1. Select RC zone
using Modbus Configuration Cable
2. Select RC zone using button
HW Ver.
1.1
Sigfox Ultrasonic Level Sensor for General Level/Distance Measurement, 30-600CMS, Internal
antenna, Type AA battery 1.5VDC, IP67, RC2-RC3-RC4-RC5 zones
Sigfox Ultrasonic Level Sensor for General Level/Distance Measurement, 30-600CMS, Internal
antenna, Type AA battery 1.5VDC, IP67, RC1-RC6-RC7 zones
RC zones selection 1..6 is RCZ1 .. RCZ6 (refer to register address 270)
Refer to the button configuration
FW Ver.
1.0
DEC-2020

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Summary of Contents for Sigfox WSSFC-ULC Series

  • Page 1 This document is applied for the following products WSSFC-ULC HW Ver. FW Ver. Sigfox Ultrasonic Level Sensor for General Level/Distance Measurement, 30-600CMS, Internal WSSFC-ULC-9-01 antenna, Type AA battery 1.5VDC, IP67, RC2-RC3-RC4-RC5 zones Item Code Sigfox Ultrasonic Level Sensor for General Level/Distance Measurement, 30-600CMS, Internal WSSFC-ULC-8-01 antenna, Type AA battery 1.5VDC, IP67, RC1-RC6-RC7 zones...

  • Page 2: Specification

    2. Introduction WSSFC-ULC is a Sigfox Ultrasonic Level Sensor to measure the level of liquid surface of water, oil... This level sensor utilises the ultrasonic technology to measure the surface of liquid, the principle is to measure the time of flight of the ultrasound pulse in the air environment.
  • Page 3 ±10 mm + S*0.3% (with S is the measured value) Sensor sampling rate configurable from 10s up to 3600s Alarm setting setting the alarm threshold for calculated value Sigfox SPECIFICATION: Sigfox zones select RC2-RC3-RC4-RC5 or RC1-RC6-RC7 Antenna Internal Antenna 2dbi 02 x AA Type 1.5VDC, working time up to 10 years (depends on...

  • Page 4: Operation Principle

    Then during the operation, there are 03 cases of sending data to base station: 1. When the sensor sampling time interval is reached, the Sigfox node will read the data from Input or sensor and performing the calculation. After that it will check calculated value with alarm thresholds. If the calculated was out off the threshold values (Lo or Hi), called alarm, and the number of times of alarm did not pass the limit of number of alarms, then it will send data to Base station immediately;...

  • Page 5: Led Meaning

    NOTE: Once sending the data to base station by the magnet key, the timer of sending time interval will be reset; The shortest time interval between the two manual triggers is 15s. if shorter than 15s, there will be no data sending and you will not hear the beep sound.
  • Page 6 Each radio configuration includes 4 uplink classes: 0u, 1u, 2u, and 3u. The Sigfox network globally works within the ranges from 862 to 928 MHz. But not all RCs require such a wide range of operation.
  • Page 7 ** Frequency hopping: The device broadcasts each message 3 times on 3 different frequencies. Maximum On time 400 ms per channel. No new emission before 20 s. *** Listen Before Talk: Devices must verify that the Sigfox-operated 200 kHz channel is free of any signal stronger than −80 dBm before transmitting.
  • Page 8 Step 3: Click New → Select a group Step 4: Fill in the required information...
  • Page 9 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. Click on the text as shown below Check the box as shown below to register as a prototype...
  • Page 10 5.5 The Effective Detection Range...
  • Page 11 5.6.1 Measurement principle of Sigfox Sensor When the sensor sampling time interval is reached, for example 2 minutes, the Sigfox node will wake up and switch ON the power supply to supply the energy to external sensor to start the measurement. Depends on the type and characteristic of external sensor, the sensor will take a certain time to finish the measurement.
  • Page 12 The Y value will be compared with Lo and Hi threshold. Please refer below the graph of alarm processing. 5.6.2 Calibration Figure – Ultrasonic Level Transmitter Calibration DB: Dead band 0..280 mm (This is a short range in front of the ultrasonic sensor can not measure distances) H: Maximum measuring distance ( Span ) D: Distance For example: Water tank with maximum height to be measured 3000mm (H) and Dead band ( DB) is 280 mm, then:...
  • Page 13 1000 1500 2000 2500 3000 Use the offline configuration tool to configure sigfox sensor. Write in the sensor the parameters a and b. Refer to section 6 for more details. 5.7 Payload Data The following is the format of payload data will be sent to Sigfox server. Length is 4 bytes.

  • Page 14: Offline Configuration

    Sigfox node. After 60s, if user can not finish the configuration, user need to reset the power of Sigfox node again, by removing battery in at least 15s. Step 1: Install the Modbus Configurator Software in the link below...
  • Page 15 How to use the Modbus configuration software Step 2: Plug the configuration cable to Computer via USB port; Step 3: Open the housing; Step 4: Plug the connector to the configuration port;...
  • Page 16 Step 5: Import the configuration file by importing the csv file: Go to MENU: FILE / Import New / => select the file with name CONFIGURATION TEMPLATE FILE FOR SIGFOX WSSFC-ULC.csv (in the link below). Then click Connect; CONFIGURATION TEMPLATE FILE FOR SIGFOX WSSFC-ULC.csv...
  • Page 17 device ID Read Product ID device PAC Read Product PAC Sensor or sen_type 1-255 uint16 Read Input Type Battery batt level uint16 Read level Sensor err_status uint16 Read error code Alarm prm1 status of uint16 Read alm_status parameter Alarm prm2 status of uint16 Read...
  • Page 18 1: enable Downlink, 0: disable downlink_flag Read/ Downlink uint16 Write (Fw v1.0 hasn't got Downlink function) Data cycle_send_data Read/ sending uint32 Write cycle, in seconds Spare for spare future Limit number of alarm_limit Read/ uint16 alarm Write sending in Spare for spare future Sensor/Input...

  • Page 19: Installation

    To maximize the distance of transmission, the ideal condition is Line-of-sight (LOS) between the Sigfox sensor and Base station. In real life, there may be no LOS condition. However, the Sigfox sensor still communicate with Base station, but the distance will be reduced significantly.

  • Page 20: Process Mounting

    7.2 Process mounting WARNINGS: 1. Please make sure the fluid is suitable with the wetted materials of the sensor. Please refer sensor specification; 2. Please make sure that the operating ambient temperature is right for the sensor. Please refer to the sensor's specifications;...
  • Page 21 3. Prepare the professional tools for installation. The inappropriate tools may cause damage to the sensor. 7.2.1 Mounting direct on the tank 7.2.2 Mounting on wall or pole...

  • Page 22: Battery Installation

    7.3 Battery installation Steps for battery installation: Step 1: Using L hex key to unscrew M4 screws at the side of the housing and carefully pull out the top plastic housing in the vertical direction...
  • Page 23 Step 2: Insert 02 x AA 1.5VDC battery, please take note the poles of the battery ATTENTION: REVERSED POLARITY OF BATTERIES IN 10 SECONDS CAN DAMAGE THE SENSOR CIRCUIT!!!
  • Page 24 Step 3: Insert the top plastic housing and locking by L hex key ATTENTION: When reinstalling the cover, pay attention to put the PCB edge into the middle slot of the box inside as shown below)

  • Page 25: Troubleshooting

    8. Troubleshooting Phenomena Reason Solutions Check that the battery is empty or not installed No power supply Node does not send RF to base correctly Configuration sending station periodically, LED does not Check the power supply cycle is incorrect blink Check the send cycle configuration The alarm configuration is...

  • Page 26: Support Contacts

    Insert the battery in the The node does not send RF and opposite direction Warranty or replacement the RF module is hot Short circuit Distance between Node and Gateway is far or there Check Antenna position are many obstructions Install Node in a well RSSI is weak and often loses data Connection to Antenna ventilated location...

This manual is also suitable for:

Wssfc-ulc-9-01Wssfc-ulc-8-01

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