This manual contains safety and operating instructions. Read it carefully before using the charger for
the first time and keep it in a safe place for future reference.
GENERAL DESCRIPTION
The Gysflash 75-12 HF is a high powered stabilised power supply incorporating SMPS (Switch Mode
Power Supply) technology.
Designed to sustain 12V batteries (liquid or gel) for vehicles during diagnostic work, and will ensure
an ideal charging cycle for battery maintenance for the most modern vehicles and battery types.
Gysflash 75-12 HF has 4 modes:
- « Charge Mode »: to charge liquid or gel electrolyte (lead, lead Calcium, lead Calcium-Silver,
AGM) starter batteries from 10Ah to 850Ah in 12V (6 elements of 2V).
- « Diagnostic Mode »: on a stationary vehicle, the GYSFLASH 75-12 HF supplies up to 75A to
ensure compensation of the current used by high-energy consumers (engine fan, window
regulator, electronic suspension, etc) during testing. This reduces the risk of damage or data
loss due to deep battery discharge.
- « Change Battery » Mode: ensures a stabilised power supply to the vehicle during battery
replacement to preserve memory settings.
- « Showroom mode » : compensation of the current used by energy consumers when showing
vehicle (window regulator, heating, mirrors, etc) enabling permanent display of the vehicle with
power on.
START UP
Connect the charger to the mains. Mains voltage automatically
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adaptable for all countries from 100V to 240V (50/60hz)
Switch « ON ».
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After 3 seconds the display will show « GYSFLASH 75A Vx.x »
Select the required mode. If no modes are selected, the charger will
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default to the last setting used
Automatic diagnosis of the cables (if worn out or dimensions modified)
After 360 charge cycles, the Gysflash 75-12 HF offers the user to check and calibrate the cables if
needed: « check cables ». This message is displayed for 10 seconds and every 30 starts until the user
launches the checking operation (start button). For more information on this mode, please refer to the
sub menu « check cables » page 15.
CHARGE MODE
This product will charge the battery safely even if the battery is still in situ in the vehicle.
Ensure that the correct sequence is followed:
Precaution: Check the electrolyte level and fill if necessary before charging.
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