Seaward 350 PrimeTest - Manual (Page 105)

PrimeTest 350 Operating Instructions
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17.5 Battery Replacement
Over a period of time, (typically 1 to 2 years), the
batteries will loose their ability to hold charge. (E.g.
Even when fully charged, they go flat very quickly
when you start using the tester). In this case you will
need to replace the batteries, using the procedure
described here.
Warning: Always ensure that the PrimeTest
350 is disconnected from all voltage sources
before maintenance work is carried out.
- Power the unit off using the red OFF button, ref
fig. 1 (3)
- Disconnect the black test lead from the unit
- Disconnect the Seaward mains cable, from the
mains inlet socket, ref fig. 2 (7).
- Disconnect the IEC mains cable, from the IEC
socket ref fig 2 (8).
- Disconnect the EUT mains cable, from the
EUT socket, ref fig. 1 (6).
- Position the PrimeTest 350 face down and
release the captive screw in the battery
compartment cover.
- Remove the battery compartment cover.
- Remove the old batteries from the
compartment.
- Insert the new set of batteries into the battery
compartment ensuring that the battery polarity
matches the marking on the inside of the
battery compartment.
- Relocate the battery cover over the battery
compartment and fasten in position with the
battery cover captive screw.
This unit will contain Nickel Metal Hydride
(NiMH) batteries. Do not dispose of these
batteries with other solid waste. Used
batteries should be disposed of by a
qualified recycler or hazardous materials
handler.