Description

New model – April 2025

Eltek FP2 Monitor v2 is used to set the default start-up voltage of an Eltek FLATPACK2 24 V or 48 V Rectifier, and displays CAN bus data on a 2.4″ colour TFT screen.

Skill level required: Medium
• Ability to solder connectors & wires
• Ability to drill, cut and file your enclosure’s front panel to mount the display

This product is not intended to simultaneously control multiple rectifiers, nor be an intelligent battery charger controller
This controller is powered directly by the Flatpack2 it is supervising

Ideal for permanent installation into your project.

Industrial grade Eltek Flatpack2 rectifiers make an ideal and robust power supply for amateur radio Solid State Power Amplifier projects.

CAN bus data displayed:

• PSU Serial Number
• Mode (Walk-in / Constant Volts)
• Intake temperature (°C or °F settable)
• Out temperature (°C or °F settable)
• Mains input voltage
• Output power (calculated)
• Output voltage
• Load current
• Alarms (if present)
• Warnings (if present)

• Output power calculated from V x I

Configuration – USB Terminal Baud Rate

Set terminal baud rate to 19,200 or 57,600.
• No link: 57,600 (default)
• Link: 19,200

Setting Default Start-Up Voltage

Default start-up voltage is set using your favorite terminal program (Termite is suggested) running on your own PC/laptop temporarily connected to your FP2 Monitor via your own Mini-B USB cable.

Once the voltage has been set, USB cable can be disconnected and the terminal connection is no longer required.

Configuration – Temperature Celsius/Fahrenheit

Set via terminal

Configuration – Screen Backlight Brightness

Set via terminal, 5 levels – 10%, 25%, 50%, 75%, 100%

High Voltage Power Supply

The controller is powered directly from your Eltek Flatpack2, so there is no need for an external 5V and 3V3 supplies.

Input capacitor is a quality Panasonic aluminium 100V electrolytic.

SMPS chip is MAX5035 (or MAX5033), rated to 76V input, 3V3 regulator is MCP1702.

What’s in the box?

• Universal Controller board (PCB 50 x 100mm)
• 2.4″ Colour TFT screen, supplied with peel-off protective cover
• 8-way 20cm screen cable
• 2-way connector for DIY power lead to your own interface PCB
• 3-way connector for DIY CAN-bus lead to your own interface PCB

What you are required to do

Using supplied 2-pin and 3-pin connectors, make your own power and CAN bus interface leads to suit your own installation.

Mount controller board within your own project’s enclosure using your own hardware.

Mount TFT screen to your project’s front panel using your own M2 hardware.

Check compatibility here: