--- title: Smart Bilge flow switch installation guide description: Installation guide for sample flow switch to Smart Bilge, Oil content meter --- [Skip to content](https://hub.rivertrace.com/knowledge/smartbilge-flow-switch-installation#main-content) English Show submenu for translations [Submit a request](https://hub.rivertrace.com/knowledge/kb-tickets/new) [![Rivertrace-Logo-Blue-on-White](https://hub.rivertrace.com/hs-fs/hubfs/Rivertrace%20Logos/Rivertrace-Logo-Blue-on-White.jpg?width=412&height=150&name=Rivertrace-Logo-Blue-on-White.jpg)](https://www.rivertrace.com) Open main navigation Close main navigation - English Show submenu for translations - [Submit a request](https://hub.rivertrace.com/knowledge/kb-tickets/new) - [Cant find what you need? Contact our remote support team.](mailto:remotesupport@rivertrace.com) [Cant find what you need? Contact our remote support team.](mailto:remotesupport@rivertrace.com) How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://hub.rivertrace.com/knowledge) 2. [SmartBilge](https://hub.rivertrace.com/knowledge/smartbilge) # Smart Bilge flow switch installation guide ## Installation guide for sample flow switch to Smart Bilge, Oil content meter ### Introduction The Smart Cell bilge monitor can be equipped with an optional flow switch, and this article provides installation guidance. Installers must ensure power is isolated during installation and refrain from working on live equipment. The flow switch necessitates a minimum input water pressure of 0.3 bar and a flow rate of 0.8 liters per minute to operate effectively. If these conditions are not met, rerouting the separator outlet pipework may be necessary. ![flow switch](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Sep-10-2021-01-09-56-98-PM.png?width=500&height=547&name=image-png-Sep-10-2021-01-09-56-98-PM.png) ### **Installation kit** The Smart Bilge flow switch installation kit (part number 113619) includes the following parts: | 113681 | Spare Flow Switch Assy | ![Flow Switch Assembly](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Nov-04-2024-02-32-59-3478-PM.png?width=193&height=97&name=image-png-Nov-04-2024-02-32-59-3478-PM.png) | | --- | --- | --- | | 109827 | Adaptor ¼’’ OD x ¼’’ BSP Male straight stem adaptor | ![Male Straight Stem Adapter](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Nov-04-2024-02-32-36-8934-PM.png?width=192&height=102&name=image-png-Nov-04-2024-02-32-36-8934-PM.png) | | 110627 | Flow switch PCB | ![](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Feb-20-2025-03-34-22-7854-PM.png?width=193&height=99&name=image-png-Feb-20-2025-03-34-22-7854-PM.png) | | 101505 | ¼ ‘’ BSP x 6 mm OD Elbow | ![Elbow](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Nov-04-2024-02-31-53-7718-PM.png?width=190&height=96&name=image-png-Nov-04-2024-02-31-53-7718-PM.png) | ### **Instructions** #### **Preparing the Smart Bilge** **Re-route the Cable:**  Move the  clean water solenoid cable to pass under the valve mount and into its original cable gland on the Smart Bilge enclosure. **Remove Front Cover:** Using small Philips screwdriver to remove the front cover of the microcontroller module. **Remove Protective Cover**: Use a small flat-bladed screwdriver to take off the clear protective cover inside the enclosure. #### **Mounting the Flow Switch on the Solenoid** Remove the ¼” female  ¼” male connector from the solenoid, which requires detaching it from the black mounting bracket. Then, insert the straight stem adaptor (part number 109827) into the flow switch with suitable pipe sealant or PTFE tape, and attach the adaptor to the elbow, tightening it securely. ![Solenoid](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Nov-04-2024-02-36-29-8685-PM.png?width=568&height=322&name=image-png-Nov-04-2024-02-36-29-8685-PM.png) Route the flow switch cable through the gland shown below into the enclosure. If the gland is absent, drill a 13mm diameter hole for an M12 gland. Tighten the cable gland around the flow switch cable before reattaching the solenoid to its bracket and securing the enclosure's protective cover and front cover **WARNING - The flow switch must be mounted on the sample line and NOT the fresh water line.**     ![PCB](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Nov-04-2024-02-37-22-2033-PM.png?width=688&height=688&name=image-png-Nov-04-2024-02-37-22-2033-PM.png) **Connect the PCB** : Connect the U-shaped PCB to the main PCB, ensuring proper  pin insertion. ![PCB Wiring](https://hub.rivertrace.com/hs-fs/hubfs/image-png-Nov-04-2024-03-09-42-4461-PM.png?width=688&height=809&name=image-png-Nov-04-2024-03-09-42-4461-PM.png) Only a Rivertrace Service agent can activate the flow switch for this type of PCB. ### **Testing the Flow Switch** **Start and Stop Flow**: Begin and cease flow to the Smart Bilge. **Check for Errors**: A flow error will be displayed, and both alarm relays will be activated each time the flow error appears on the LCD screen. ### **Maintenance** There is no user maintenance for the flow Switch although it can be dismantled for cleaning if it is contaminated with oil however, care should be taken when removing the flow switch cap as the spring inside can be damaged or lost. 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