Pebble Install Guide

Know these setup details first

• Which Pebble model you are installing: eco1, eco2, or Pebble Plus.
• Whether the Monitoring Device has already been created in the portal.
• Whether the physical device/site timezone has been selected in the portal.
• Which Main Tank Sensor Type is being used: ultrasonic distance sensor or submersible level sensor.
• Whether the site uses one Main Tank only, a Main Tank with Reserve Tank, or a larger RS485-based setup.
• Whether Manual Level Input is being used as a trial/no-sensor setup for the Main Tank.
• Whether the tank needs Tank Objects / Additional Measurements for internal shapes, side spaces, or connected capacity.
• If Pebble Plus is being used, whether each RS485 device has already been commissioned to the intended shared bus standard and a unique address.

Simple meanings

Monitoring Device
The Monitoring Device is the portal record created in the dashboard. It stores the device serial, link code, site location, timezone, and tank relationship.

Pebble Unit
The Pebble Unit is the physical hardware installed on site.

Link Code
The Link Code connects the physical Pebble Unit to the correct Monitoring Device in the portal.

Main Tank
The Main Tank is the primary tank linked to the Monitoring Device. It is connected as Tank A / Sensor A / reading 1.

Reserve Tank
The Reserve Tank is an optional backup tank connected as Tank B / Sensor B / reading 2. It is added after the Main Tank is created and marked as having a reserve.

Portal
The Portal is the website dashboard where the Monitoring Device, Link Code, tank setup, timezone, and tank status are managed.

Main Tank Sensor Type
The portal setting that tells the system how to interpret the Main Tank reading. Ultrasonic means top-down distance reading. Submersible means in-water level/depth reading.

Ultrasonic sensor
An ultrasonic sensor sits above the water and measures distance down to the water surface.

Submersible sensor
A submersible sensor goes down into the tank and measures water pressure from inside the tank instead of reading from above. Some versions use 4-20mA, 0-5V, 0-10V, or RS485 / Modbus. For Pebble Plus, confirm you have the RS485 / Modbus version before wiring it to the RS485 bus.

Manual Level Input
Manual Level Input is a Main Tank only trial/no-sensor mode. It allows the customer to enter fluid levels manually before installing a physical sensor. Manual Level Input cannot be used with a Reserve Tank.

Tank Objects / Additional Measurements
Tank Objects are used when a tank has internal shapes, side spaces, wedges, blocks, or connected areas that change usable capacity.

RS485 bus
The RS485 bus is the shared wired sensor line used on Pebble Plus. It lets the controller communicate with compatible sensors on the same wiring run. Each RS485 device must have a unique address and use the intended shared communication standard.

Before installing the physical Pebble Unit, create or select the Monitoring Device in the portal.

1. Create or select the Monitoring Device.
2. Choose the Complex and Building where the device will be installed.
3. Select the physical device/site timezone. Reading times, tank-top events, and device time-sync behavior use this site timezone.
4. Save the Monitoring Device so the portal can generate the Device Serial and Link Code.
5. Use that Link Code on the Pebble setup page to link the physical Pebble Unit to the correct Monitoring Device.

After the Monitoring Device exists, use the Device page to link or create the Main Tank for that device.

• If the Main Tank already exists and is not linked to another device, link it from the Device page.
• If the Main Tank does not exist yet, create the Main Tank from the Device workflow.
• The Main Tank should match the physical tank connected to Sensor A / reading 1.
• Device linking should be managed from the Device page, not by manually changing the device inside the tank update form.

Press and release the Pebble menu button. Do not hold the button. This opens the temporary Pebble setup Wi-Fi so the installer can access the local setup menu.

Connect to the Pebble setup Wi-Fi, then open http://192.168.4.1. Log in using the setup access code. setup1234

Only for units with mobile service

Some Pebble units include a mobile communication module. These units can send updates through the mobile network instead of relying only on site Wi-Fi.

• Make sure the SIM card is installed and active.
• In Connection Setup, enter the mobile APN details if required.
• Use the communication setting that matches the install.
• Run the mobile connection test before leaving the site.

Choose the correct linking method

If the same physical Pebble is being moved to another Monitoring Device or another account, release the hardware in the portal first, then use Clear Cloud Link on the Pebble local setup page.

1. In the portal, open the old Monitoring Device and choose Release Hardware.
2. On the physical Pebble, open Clear Cloud Link.
3. Generate fresh Link Codes for the new Monitoring Device or devices.
4. Use Link Device or Link All Slots to bind the physical Pebble again.

Sensor Setup is where you tell the physical Pebble Unit what type of sensor is connected and where you prepare the live reading test.

• Choose the matching quick setup if one applies.
• Confirm the sensor type for each reading.
• Confirm that the physical sensor setup matches the portal Tank Sensor Type.
• For ultrasonic sensors, confirm the sensor is mounted above the water and aimed straight down.
• For submersible sensors, confirm the correct electrical/RS485 version was selected and wired correctly.
• If used, confirm how the tank-top switch is connected.

Use these tools when an RS485 device needs to be commissioned or corrected before the live bus is finalized. This is most common when a device arrives with the wrong address, the wrong communication speed, or another setting that must be corrected before normal operation.

• Sensor Number Tools: Use this to read, assign, and scan sensor numbers for RS485 ultrasonic and RS485 submersible sensors.
• Analog Sensor Number Tools: Use this to read, assign, and scan addresses for RS485 analog input modules.
• Switch Box Service: Use this only if the tank-top switch box needs service or address recovery. In normal installs, the switch box address is usually pre-configured.
• RS485 Ultrasonic Service: Use this for ultrasonic address recovery, communication-speed recovery, force-9600 actions, and diagnostics.
• Submersible Sensor Service: Use this for submersible sensor address work, communication-speed changes, zero-offset correction, save actions, and related diagnostics.

If the installation uses Pebble Plus and any RS485 device is not responding correctly, open the RS485 Wiring Guide and confirm topology, termination, polarity, grounding, and branch length before assuming the device is faulty.

• Check reading now: Use the test button to confirm a live reading appears.
• Main and Reserve: If using eco2, test both the main and reserve readings.
• Tank-top switch: If the setup uses a tank-top switch, test that the status changes when the switch is triggered.
• RS485 commissioning: If an RS485 device needs a corrected address or bus speed, use the matching service page before final testing.
• Submersible offset: If a submersible sensor communicates correctly but reads consistently off, review and correct the offset value in the Submersible Sensor Service page.
• Existing analog sensor: For analog installs, use the current electrical value tools to confirm the live signal and help set the empty and full calibration points.

After all readings and service actions are confirmed, save the settings. When the device returns to normal operations it will continue sending updates based on the setup you entered.

On Pebble Plus, all commissioned RS485 devices on the live bus should now have unique addresses and be using the intended shared bus standard.

After the Link and Sensor Setup are complete, open Connection Setup.

• Send an update when the level changes by?: Aside from the normal update time, you can set the device to update on level change.
• Last Check-in time for the day: You can change the device last check-in update. Default is 24-hr clock time of 2350 hrs.
• Send Updates every (hours) : Choose how often the device should send updates.

Before you leave the job site. Confirm the website has been updated with an expected values and date time..

Finish Setup is the final installer close-out step. It closes the temporary Pebble setup Wi-Fi and returns the device to normal runtime mode.

• Use Finish Setup only after Wi-Fi, linking, sensor setup, and final checks are complete.
• After pressing Finish Setup, the browser will show a confirmation page.
• A few seconds later, Pebble-xxxxxx will disappear and your phone or tablet will disconnect from the setup Wi-Fi.
• The device continues normal operation using the saved site Wi-Fi or configured backhaul method.

Pebble uses the LCD screen and the LED blink pattern together to show status and the next action to take. Use this guide to match the device message with the correct next step.

LED pattern guide