Monarch Instrument Nova-Strobe PBL - Manual (Page 22)

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5.1 Low Battery Indication
When the batteries are charged, there will be no battery icon indication.
When the batteries are low, the Low Battery icon will blink in the display.
The strobe may still be used for a short time.
Low Battery Icon = Outline blinking (very little time left)
The strobe has a protection feature that prevents the strobe from
operating if the battery voltage is too low. This condition is indicated
by no fl ash and the display shows “LO BAT”. At this time the batteries
must be recharged. Remember to release the trigger switch.
5.2 Charging the Batteries
The unit may be recharged at any time. You do not need to wait until
the low battery condition is indicated.
To charge the strobe with the recharger:
1. Release the trigger so the strobe is off.
2. Plug the recharger cable into the recharger socket (located below
the display panel behind the handle).
3. Plug the recharger into an AC mains wall outlet (115/230 Vac).
CAUTION: Use of rechargers other than the one supplied
(PSC-2U for the DBL and PSC-PBXU for the PBL)
will damage the stroboscope and void the warranty.
When the recharger plug is inserted into the recharger jack, the strobe
will go into the Charging Mode. Make sure the trigger switch is not
depressed. The DBL strobe will not do anything else when charging
(e.g. it will not fl ash and the buttons have no function).
When charging, the strobe will indicate
CHRGE in the bottom of the
display. The recharger will fast charge the batteries for about 4-5 hours
and then trickle charge the batteries.