Do not attempt to connect power or disconnect power from the unit in a hazardous area. Ensure
the area is non-hazardous. Failure to do so could result in an explosion.
1. Remove the front end cap.
2. Terminal block TB1 includes connections for DC power (+DCIN, -DCIN) and battery/solar
power (+SPIN, -SPIN). Battery power (which is also used with solar power) has its own
internal connection.
▪ Plug in TB1 to activate DC or solar power. If your device uses an internal battery and it
is not connected, connect it as discussed in Connecting the Main Battery Pack.
▪ Unplug TB1 to deactivate DC or solar power. If your device uses an internal battery,
disconnect the main battery.
3. Replace the front end cap. Screw it clockwise (eight full turns) until it is tightly sealed to the
enclosure.
This turns on (or turns off) power from an external power supply or from the battery pack/solar
panel.
Note
When you turn power on, the backlight on the HMI module lights, momentarily turns off and then
remains lit while the INPUT LED blinks. After approximately one minute the initialization process
completes and the HMI starts to display live data.
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