---
title: Checking the isolation barriers within your RT14 flow meter totaliser module.
description: Checking the isolation barriers within your RT14 flow meter totaliser module.
---

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# Checking the isolation barriers within your RT14 flow meter totaliser module.

## A simple continuity test to determine the health of the Flow meter isolation barriers.

### Checking for pulses on the safe side of the barriers

Remove the two wires from the safe side of the barriers as shown in the diagram below. You must now connect your multi meter across the terminals where the wires were removed and check once more for continuity whilst the paddle wheel is rotated. 

![Check for continuity ](https://hub.rivertrace.com/hubfs/image-png-Jan-25-2023-02-10-51-8686-PM.png)

**If no pulses are present whilst the rotor is being turned, the isolation barriers will need replacing. **

**If pulses are present here yet you have no flow present at the flow meter totaliser and the wiring is double checked correct, the totaliser will need investigation. **

 

 

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