Campbell CR800 Series - Comms Memory Errors; Troubleshooting - Power Supplies; Troubleshooting Power Supplies - Overview

Section 10. Troubleshooting
477
distant instance of LoggerNet. An onsite technician can communicate with the
CR800 using PC200W with a serial connection, so long as the PakBus addresses
of the host PCs are different. All Campbell Scientific datalogger support
software include an option to change PC PakBus addressing.
See CommMemFree
(p. 538).
10.8.3 Comms Memory Errors
The status array CommsMemFree() (p. 538, p. 538, p. 538) may indicate when a
communication memory error occurs. If any of the three CommsMemFree()
array fields are at or near zero, assistance may be required from Campbell
Scientific.
10.9 Troubleshooting — Power Supplies
Related Topics:
• Power Input Terminals — Specifications
• Power Supplies — Quickstart
(p. 37)
• Power Supplies — Overview (p. 83)
• Power Supplies — Details (p. 94)
• Power Supplies — Products (p. 576)
• Power Sources (p. 95)
• Troubleshooting — Power Supplies (p. 477)
10.9.1 Troubleshooting Power Supplies — Overview
Power-supply systems may include batteries, charging regulators, and a primary
power source such as solar panels or ac/ac or ac/dc transformers attached to mains
power. All components may need to be checked if the power supply is not
functioning properly.
Check connections. Check polarity of connections.
Base diagnostic: connect the datalogger to a new 12 V battery (a small 12 V
battery carrying a full charge would be a good thing to carry in your
troubleshooting tool kit). Watch the polarity of the connection. + to +, – to –.
If the datalogger powers up and works, troubleshoot the datalogger power supply.
Troubleshooting Power Supplies — Procedures
(p. 478) includes the following
flowcharts for diagnosing or adjusting power equipment supplied by Campbell
Scientific:
• Battery-voltage test
• Charging-circuit test (when using an unregulated solar panel)
• Charging-circuit test (when using a transformer)
• Adjusting charging circuit