🔍 Key Concepts

• Purpose of a salinity cell in an evaporator/distilling unit • What parameter a salinity cell actually measures (think: concentration vs. physical damage) • How the distilling unit reacts when salinity reaches a certain level

💭 Think About

• Ask yourself: does a salinity cell detect where seawater is entering, or does it sense the quality of the produced water? • Consider whether a single sensor can reliably measure the size of a leak, or whether it simply indicates when salinity is above a safe limit. • Think about what information the control system needs most to protect potable water tanks from contamination.

✅ Before You Answer

• Verify what salinity means in this context (is it position, amount of flow, or concentration of dissolved salts?). • Check if standard distilling plant alarms are based on location of defect or on output water quality limits. • Confirm whether typical salinity indicators provide an on/off (high/low) type signal or a detailed measurement of leak size and location.