Connecting Solar Power; Wiring The 30W Solar Panel - Emerson FB2100 Instruction Manual

Emerson FB2100 Flow Computer Instruction Manual
D301783X012
March 2019

Connecting Solar Power

DANGER
EXPLOSION HAZARD: Never remove end cap(s) in a hazardous location. Removing end cap(s) in a
hazardous location could result in an explosion.
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.
Important
If you purchase a solar panel/external solar regulator combination other than the Emerson-
approved option, it must meet the specifications listed in
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
42
for wiring instructions if you ordered the internal solar regulator.
Tables 2-6 and 2-7.
Installation