Models 6904I, 6912D-12 & 6912CR-12
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.
The 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 Panel Model | Specifications | Size/Weight |
---|---|---|
6904I-10 | 12VDC 10W, 5m single pair instrumentation cable Hardware for 50mm dia. pole mounting included |
357mm x 303mm x 35mm 2kg |
6904I-20 | 12VDC 20W, 5m single pair instrumentation cable Hardware for 50mm dia. pole mounting included |
300mm x 540mm x 35mm 2.5kg |
6904I-50 | 12VDC 50W, 5m single pair instrumentation cable Hardware for 50mm dia. pole mounting included |
637mm x 540mm x 35mm 4.5kg |
Model 6912D-12
Size: 152mm x 55mm x 34mm (LxWxH)
Weight: 230 grams
Operating temperature: -40°C to 85°C
Inputs: 12V solar panel, 2 x 12V SLA battery (parallel connection)
Outputs: 12V regulated, Load current 10A
Model 6912CR-12
Material: UV stabilised polycarbonate, IP67
Size: 125mm x 85mm x 75mm (LxWxH)
Weight: 250 grams
Operating temperature: -40°C to 85°C
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.
Model | Description |
---|---|
6904I-10 | Solar Panel 10W with Pole Mounting Bracket |
6904I-20 | Solar Panel 20W with Pole Mounting Bracket |
6904I-50 | Solar Panel 50W with Pole Mounting Bracket |
6912D-12 | Solar Controller 12V 10A |
6912CR-12 | Solar Power Controller with two relays |
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Brochures
Enclosures and Battery and Solar Power Systems for Starlog and Neon IP Dataloggers
Manuals
Unidata Manual – 6904H Solar Panels and 6912 Controllers
Application Notes
Pipeline Cathodic Protection
Oil Beam Pump and ESP Pump Monitoring
Industrial Outflow Monitoring