IPG20 MK3Intelligent Pump Guard

Designed for both fresh-water and effluent irrigation systems. Learns the operating pressure each time the system is started, then applies its own under- and over-pressure set points for highly targeted leak and over-pressure detection. Suits fixed pods or travelling irrigators.

Features

Learns the operating pressure
Fixed or travelling irrigation systems
Compensates for change in terrain
Cyclic running for pod systems
Leak and blockage detection
Loss of flow protection
Displays pressure and set points
20 bar / 2000 kPa pressure rating
Multi-voltage operation
Manual or automatic operation
IP64 rating

The IPG20 MK3 intelligent pump guard is of thermoplastic construction with a 1" BSP process connection. Supplied with one paddle to suit pipe sizes 25 mm and greater, plus two trailing wires to suit pipe sizes 65 mm – 100 mm ID (subject to velocity).

More Information

Ordering — Available Models

Model Number	Description
IPG20-MK3	Standard model — 220–240 V AC and 24 V AC or 24 V DC operation
IPG20-12-MK3	Low-voltage model — 12 V DC operation only

Operating Limitations

Ambient temperature range	1 °C to 50 °C
Liquid temperature range	1 °C to 60 °C
Ingress protection rating	IP64
Maximum operating pressure (static or dynamic)	20 bar / 2000 kPa
Minimum burst pressure	> 30 bar / 3000 kPa
Starting pressure range	0–2000 kPa in 1 kPa steps
Stopping pressure range	0–2000 kPa in 1 kPa steps
Minimum pressure differential	1 kPa
Recommended pipe size	25 mm / 1" or larger (no upper limit)

Electrical Data

Supply voltage	220–250 V AC or 18–25 V AC/DC (multi-voltage input)
Maximum motor load	Single-phase motors up to 2.4 kW max at 240 V AC (P1). 3-phase motors of all sizes via a suitable interposing contactor — no maximum motor size applies.
Relay 1 contact rating	16 A at 240 V AC resistive
Relay 2 contact rating	16 A at 240 V AC resistive

Functions

# = user-settable

#Manual or Automatic operation	—
#Auto terrain compensation	Allows for contour change with a travelling irrigator.
#Drift allowance (kPa)	Auto terrain compensation only.
#Pre-start delay timer	Adjustable from 1 second to 27.7 hours in 1-second increments.
#Use alarm relay	—
#Absolute low pressure	Detects a major leak during start-up.
#Low pressure margin	Fine leak detection.
#Absolute high pressure	Closed-valve protection.
#High pressure margin	Partial blockage detection.
#Set-point margin	Allowable pressure variation during the learning process.
#Ramp-up timer	Allows time to establish stable pressure. 1 second to 15 minutes in 1-second increments.
#Set-point timer	Adjustable in 60-second increments.
#Pressure dip timer	Adjustable from 1 second to 4 minutes in 1-second increments.
#Pressure spike timer	—
#Run-on timer (loss of flow)	Adjustable from 1 second to 15 minutes in 1-second increments.
#Cyclic running	Running and stopping times both 2 minutes to 99 hours 59 minutes in 1-minute increments. Not available in auto-terrain-compensation mode.
#Auto restart on a fault	Adjustable 1 minute to 99 hours 59 minutes. Not available in auto-terrain-compensation mode.
#Program lock	—
Pressure / set-point display	Displays system pressure and high & low pressure set points in kPa.
Pump run-time display	Displays the total time the pump ran in minutes.
Fault diagnostic display	Displays the reason for stopping on a fault.
Remote learning	Instigate the learning process using a remote switch (manual operation).
No-flow protection	No-flow protection at all times.

Dimensions

Self-Learning Pressure Algorithm

The IPG20 MK3 measures the system’s normal operating pressure each time it starts and uses that as the reference for under- and over-pressure detection. As the irrigator travels over varying terrain the auto-terrain-compensation function adjusts the reference downward / upward in real time, so leak and blockage thresholds remain meaningful even as system pressure changes naturally.

Flow Sensitivity & Paddle Trimming

The IPG20 ships with one paddle (suits pipes 25 mm and larger) and two trailing wires (suits 65–100 mm ID, subject to velocity). The flow at which the paddle activates depends on pipe size, viscosity, and trimmed paddle length. Use the online Paddle Calculator to estimate activation flow and determine how much to trim the paddle for your application.

Open the Paddle Calculator →

3-Phase Pump Motors

The IPG20 MK3 can be used to control either single-phase or 3-phase pumps, provided a 220–240 V AC or 24 V AC/DC supply is available at the installation site. For 3-phase motors the IPG20 drives an interposing contactor — use the Pump Controller Power Calculator to size the contactor and verify cable rating + voltage drop.

Open the Pump Controller Power Calculator →

Application Restriction

The IPG20 MK3 is an industrial control device, specifically designed for use in dairy and agricultural applications. It must never be used for any other application. Installation must be carried out by a qualified pump engineer, and all electrical work by a licensed electrician.

Hazardous Areas

The IPG20 MK3 is not certified for use in hazardous areas and must not be installed in any area classified as hazardous under AS/NZS 60079.10 (Zone 0, 1, 2, 20, 21 or 22).

Serviceability

The IPG20 MK3 intelligent pump guard is not user serviceable. However, spare parts are available from Kelco Engineering or from your distributor.