Solar Panels and Controllers

Models 6904I, 6912D-12 & 6912CR-12

  • Overview

    The solar powered system enables the long-term use of 12V sealed lead acid batteries in the field without the need for recharging from the mains. The entire system is designed to be maintenance free once installed.
    Solar powered system consists of solar panel 6904 range, sealed lead acid battery 6907B range and 12V 10A solar controller model 6912.
    This configuration may be used for externally powering all data loggers, Starflow and conductivity instruments.
    In an installation with a prolonged period (more than 10 consecutive days) without sunlight we recommend the using 10W model 6904I-10 solar panel with two 14Ah sealed lead acid batteries 6907B-14 (28Ah). This system will also operate a cellular phone site for up to 5 “sunless” days.

    Solar power & relay controller dual relay output Model 6912CR-12 regulates the charging of a 12 volt sealed lead acid battery via a solar panel and provides a supervised 12V modem power output. In addition to this, controller has two 2A relays with capacity to operate either solenoid or small pump. Any Unidata logger can interface with the controller allowing program control of the two relay outputs.

    SOLAR PANELS AND CONTROLLERS

  • Specifications

    Solar Panel ModelSpecificationsSize/Weight
    6904I-1012VDC 10W, 5m single pair instrumentation cable
    Hardware for 50mm dia. pole mounting included
    357mm x 303mm x 35mm
    2kg
    6904I-2012VDC 20W, 5m single pair instrumentation cable
    Hardware for 50mm dia. pole mounting included
    300mm x 540mm x 35mm
    2.5kg
    6904I-5012VDC 50W, 5m single pair instrumentation cable
    Hardware for 50mm dia. pole mounting included
    637mm x 540mm x 35mm
    4.5kg


    Model 6912D-12

    Physical specifications

    Size: 152mm x 55mm x 34mm (LxWxH)
    Weight: 230 grams
    Operating temperature: -40°C to 85°C

    Electrical specifications

    Inputs: 12V solar panel, 2 x 12V SLA battery (parallel connection)
    Outputs: 12V regulated, Load current 10A

    Model 6912CR-12

    Physical specifications

    Material: UV stabilised polycarbonate, IP67
    Size: 125mm x 85mm x 75mm (LxWxH)
    Weight: 250 grams
    Operating temperature: -40°C to 85°C

    Electrical specifications

    Inputs: 12V solar panel, 2 x 12V SLA battery (parallel connection)
    Charging is thermally limited. Two relay control (open collector or TTL – user can set).
    Outputs:
    Modem power 12V regulated, 500mA limit, shutdown on low battery detect.
    Two relays normally open contacts. 12V is supplied to contacts upon closure.
    Terminals: Pluggable terminals for two relay outputs, logger control signals, solar panel, battery and test.

  • Ordering Information

    ModelDescription
    6904I-10Solar Panel 10W with Pole Mounting Bracket
    6904I-20Solar Panel 20W with Pole Mounting Bracket
    6904I-50Solar Panel 50W with Pole Mounting Bracket
    6912D-12Solar Controller 12V 10A
    6912CR-12Solar Power Controller with two relays

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  • Documents

    Application Notes
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