T-code Valid from serial number
403-414, 669-671, 716-718 713962-
Date Order number
2005-06-01 218920-040
38-  14 Service Manual  REFLEX  RR B/E, RR B/E CC © BT Europe AB
Battery charger – 8340
Service and maintenance
Calibrating the charging current, code 25
• Ensure that the charger delivers at least 50% of the rated current.
• Measure the current using a clamp-on ammeter intended for direct 
current.
• Press * 25 * 2451 * current and the first decimal *.
Example: If the current is measured to 68.5 A.  
Press * 25 * 2451 * 685 *).
Calibrating the mains voltage display, code 26
• Measure the voltage between two phases. With single phase, be-
tween the phase and negative. 
• Press * 26 * 2451 * voltage *.
Example:  If the voltage is measured to 396 V.  
Press * 26 * 2451 * 396 *).
38.4.4 Calibrating and programming API
Calibrating zero pressure
• Loosen the air hose from the charger’s air nipple. Start the charger 
with a battery connected.
• When the charger and pump start, press * 35 * 2451 *. The measure-
ment system is now set to the pumps zero pressure.
Calibrating the pressure
• Connect a pressure meter with adjuster screw to the charger’s air 
nipple. Turn the adjuster screw so that a counter pressure equiva
-
lent to 90-110 mbar is obtained.
Press * 35 * 2451 * enter the mbar to one decimal *.
All calibration is completed by calculating a new checksum with * 22 * 
2451 *.
Programming the alarm limits
Register 246 contains the limits for the underpressure. Each unit corre-
sponds to 10 mbar The charger is usually programmed for 30 mbar, i.e. 
register 246 contains the value 3.
Register 247 contains the limits for the overpressure. Exactly as for the 
underpressure each unit corresponds to 10
 mbar. The charger is usual-
ly programmed for 120 mbar overpressure, i.e. register 247 contains 
the value 12.
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