Tech-note
tn202-2.doc - 10.01.2012
ePALM10 Product Manual
8
Warning
: danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.
5)
replace the battery with a new one
6)
close the handheld and tighten the six screws
7)
apply power to the handheld and check that the battery good status is reported.
Figure 3 – Battery replacement
3.4 Power Supply and Grounding
The unit must always be grounded to protection earth (PE). Grounding helps limit the effects of noise
due to electromagnetic interference on the control system.
The power supply circuit may be floating or grounded. In the latter case connect to ground the power
source common as shown in figure 4 with a dashed line.
When using the floating power scheme, note that the panels internally connect the power common to
ground with a 1 M
Ω
resistor in parallel with a 3,3 nF capacitor.
The power supply must have double or reinforced insulation
The suggested wiring for the power supply is shown in figure 4.
