Restriction
The solar panel and lead acid battery combination cannot be used with ATEX/IECEx applications.
When power comes from a solar panel/lead acid battery combination, connect using the BATT+
and BATT– terminals and standard copper wire (#18 AWG minimum).
Important
▪ Only use batteries supplied with the flow computer or sold by Emerson as spare parts for this
flow computer. If you substitute a battery you obtain elsewhere you will void your certification
unless it is the identical part from the same manufacturer as that supplied with the flow
computer from Emerson.
▪ If you purchase a solar panel/external solar regulator combination other than the Emerson-
approved option, it must meet the specifications listed in Tables 2-6 and 2-7.
2.10.3.1 Wiring the 30W Solar Panel
For the 30W solar panel option with an external solar controller (charger/regulator) purchased
through Emerson (Emerson-approved option) connect the external solar controller to the flow
computer battery using the instructions in this section.
If you are using your own external solar controller/30W solar panel not purchased through
Emersion, you can use this section as an example of a typical installation. You should also consult
the manufacturer’s instructions for your solar panel/solar regulator.
In either situation, you must use the battery, cables, and fuses supplied by Emerson for your
connections to the solar controller/solar panel.
Note
When making connections to the junction box or the solar regulator, you will need a suitable cable
gland/grommet to prevent water ingress to the junction box.
See Figure 2-39 for wiring instructions if you ordered the internal solar regulator.
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