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9. Protective facilities / Fault indication
9.1
Display "th"
When working with long flash sequences and fast charging times, charging of the power
pack may be blocked to protect the flash tube from overloading and to allow a cool-
down period of 30 seconds. This is indicated when a signal is audible for a longer time
and the blinking "th" appears on the LCD display of channel 1 (8). The fan continues to
operate, thus accelerating the cooling effect.
If excessively high temperatures build up inside the unit despite the fan cooling effect,
the charge mode will be blocked for a certain period of time and a long audible signal
will be emitted.
During the cool-down period "th" ( not blinking ) appears on the LCD display of channel
1 (8). The fan continues to operate, thus accelerating the cooling effect.
If you activate the fan several times it may happen, that the LCD display of channel
1/ (8) shows "th" (no blinking). Parallel to this the LCD display of channel 2 / (9) shows
"A4" During this procedure the fan cooling process is slightly longer.
Attention: Do NOT switch off the power pack during cooling!
If the power pack is switched off too early, it is likely, despite a long break, that only a
few flashes are possible when switching the unit on again, because the processor has
not been able to follow the entire cooling process.
9.2
Display
"
A1
"
The unit is equipped with an automatic afterglow block. If the flash tube exhibits after-
glow (for example at the end of its service life), this block will stop further charging to
prevent consequential damage. A1 will show on the display of LCD display channel 1
(8). In this status, the ready lamp (15) is no longer green. The block can be cancelled by
switching the unit off and on again.
9.3
Fuse
The fuse (2) is located on the front panel of the unit. In the event of an electrical
malfunction in the power pack, the circuit breaker will automatically interrupt the power
source. Sand-filled fuses with value 16 T may only be used (sand-filled fuses can be
identified by their opaque fuse container). Using wrong fuses can seriously damage the
power pack.
Summary of Contents for Verso A2 plus
Page 5: ...5 also valid for Verso A4 ...
