Pump Seal Monitor, Adjustable Delay

The Avanti Pump Seal Monitor (PSM) protects submersible pump motors with a built-in oil bath by detecting water ingress caused by a failed pump seal. If water enters the oil bath through a faulty seal, the monitor's relay de-energises, allowing the pump to be shut down before the motor is damaged. It suits borehole users, farmers, contractors and maintenance teams running submersible pumps that need seal-failure protection.

• Application: Suitable for submersible pump motors with an oil-filled seal bath
• Key specification: Relay de-energises on detection of water ingress through the pump seal
• Delay setting: Adjustable response delay (settings 1-4)
• Supply voltage: 230V AC / 400V AC per manufacturer specification
• Indication: Power LED for at-a-glance status

Key Features

• Monitors the oil bath of a submersible pump motor for water ingress caused by seal failure
• Relay energises on power-up and de-energises if water enters the bath, giving an early warning before motor damage occurs
• Adjustable delay setting (1-4) to help avoid nuisance trips from minor moisture readings
• Simple relay output for interfacing with a pump starter, contactor, alarm or control panel
• Power LED indication for quick status checks

Typical Applications

• Submersible borehole pump seal protection
• Farm and agricultural submersible pump systems
• Commercial and industrial submersible pump installations
• Early warning protection to reduce costly motor rewind/replacement from seal failure

Technical Specifications

What's Included

• 1 x Avanti Pump Seal Monitor (Model PSM)

Please note: Pump motor probe leads/sensor connections, wiring accessories and electrical protection are not included unless specifically listed above.

Installation & Compatibility Notes

• Confirm your submersible pump motor has a built-in oil bath with seal-probe connection points before ordering — this unit is not a universal retrofit for motors without that feature.
• Confirm your supply voltage (230V AC or 400V AC) matches your system.
• Set the delay (1-4) to suit your application to reduce nuisance trips while still catching genuine seal failures early.
• Installation should be carried out by a suitably qualified electrician.

Warranty & Support

This product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms.

Need help choosing? If you are unsure whether this product is suitable for your pump motor, contact Zisabo with your pump make/model and supply voltage, and we will assist where possible.