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PowerTech MP-3739 - User Manual

PowerTech MP-3739
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Operating Manual MP-3739
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PowerTech MP-3739 Specifications

General IconGeneral
BrandPowerTech
ModelMP-3739
CategoryController
LanguageEnglish

Summary

About this manual

Safety

Other risks

Highlights specific dangers like fire, explosion, and battery acid hazards.

Fault behaviour

Function

What is MPP tracking (MPPT)?

Operating the controller

Display and operation elements

Identifies and describes the controller's display screen and front panel buttons.

Display window

Menu Functions and Programming

Default window

Shows battery voltage, capacity, and system operation overview.

Manual load control

Allows manual switching of the connected load ON or OFF.

Charge current

Displays the current flowing into the battery from the solar array.

Load current

Displays the current being drawn by the connected loads.

System clock

Bulk charge voltage

Float charge voltage

Night mode

Night light function

Timer 1, NLF=ON

Sets the ON time for the load after entering night mode.

Timer 2, NLF=OFF

Sets the OFF time for the load after Timer1 has finished.

Standard Timer1 & Timer2 setup, with NLF=OFF

Functional Explanations

PWM Charge control

Explains automatic charging procedures based on battery level.

Deep discharging protection

Details how the controller prevents battery damage from low voltage.

MPPT function

Highlights the use of MPPT technology for maximum solar output.

5 V USB output

Describes the availability of a 5Vdc/500mA power supply.

2 timers, control the load output automatically

Explains the timer functions for automatic load control.

Installation

Warning

Mounting the solar charge controller

Fix the solar charge controller

Details the steps for physically mounting the controller to a wall.

Grounding

Install the solar system and operating mode

TECHNICAL INFORMATION

Charging Curve

Bulk

First stage of charging, receiving majority of charge up to 85-95% capacity.

Absorption

Constant voltage stage allowing battery to absorb current.

Float (Maintenance)

Stage after full charge, maintaining battery with minimal current.

Protection functions

The following faults will not destroy the controller

Lists faults that do not damage the controller and allow normal operation after correction.

Maintenance

Error Messages

Meaning: Battery polarity reverse warning

Indicates battery terminals are connected incorrectly.

Meaning: Battery is wrong

Signals an issue with battery voltage, possibly requiring recharge or replacement.

Meaning: Module current too high

Indicates excessive current from the solar module.

Meaning: Over current at the load output

Signifies excessive current drawn by the connected loads.

Meaning: Over voltage on the battery

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