Midtronics GR1 240, Instruction Manual

Page: 13 / 20

13
GR-1 FUNCTIONS
1. DIAGNOSTIC FAST CHARGE (12 V)
The GR-1 will control and monitor the entire charging session including: initial diagnostic testing, initial
diagnostic charging, data analysis, charging duration, charging level, charging rate, top-off charging (when
appropriate) and final diagnostic testing.
The GR-1 will perform a number of tests prior to the actual charging.
While performing these diagnostic tests, the display may show a moving
status bar.
If the GR-1 detects a defective battery it will stop and display one of
the following results: Replace Battery or Bad Cell Battery.
If the GR-1 detects that the battery has reached sufficient
state-of-charge and cold cranking amps it will stop and displays
the result: Good Battery
DIAGNOSTIC CHARGING
If the analysis finds a battery with insufficient state-of-charge, the
GR-1 briefly displays the measured voltage and available starting
current, and then begins the diagnostic charging mode.
This mode greatly enhances the GR-1’s ability to judge hard to
diagnose batteries.
The length of time required for diagnostic charging varies,
depending on the type of battery being charged. During this first
diagnostic mode (which does not exceed 4 minutes), the GR-1
keeps the user informed by displaying the following information:
Charging voltage, Charging current, remaining time to charge, charging mode, and the amount of charge put
back into the battery (shown in Ah).
This first diagnostic charging mode will detect whether the battery
is capable of accepting charge or not. Having detected this it will
proceed to the main Diagnostic Fast Charge mode.
The GR-1 alerts the user of this transition with a message and an
audible tone.
FAST CHARGING A BATTERY
The GR-1 controls the charging voltage and charging current based on its analysis of the diagnostic testing
data, diagnostic charging data and the battery information that was selected by the user. It continuously
monitors the battery and analyzes the charging progress during the entire timed automatic charging session.
In some cases, the GR-1 may find a battery to be defective before the end of the estimated time to charge. In
other cases, the GR-1 may detect that the battery accepted the charge more quickly than estimated. With
either case, the GR-1 will alert the user with an audible alarm and an appropriate message.
During charging, the GR-1 keeps the user informed by displaying
the following information: Charging voltage, Charging current,
Remaining time to charge, Charging mode and the amount of
charge put back into the battery (shown in Ah).
Note: If at any time the GR-1 needs to be stopped, press the
STOP button and the charging session will be aborted.
CHARGE COMPLETION
The Diagnostic Fast Charge session is complete when the
proper amount of charge is put back into the battery or the
remaining time to charge goes to zero. The GR-1 will then
perform its final diagnostic tests on the battery.
When the analysis is complete, the GR-1 will alert the user with an
audible alarm and will display the following information: battery
voltage, available current in CCA, total charging time, battery
condition, and the final amount of charge put back into the battery (Ah).
Details can be found on the print-out.
Analyzing Battery…
9,87V 345CCA 0:00:00
Replace Battery Ah: 0,0
12,75V 654CCA 0:00:00
Good Battery Ah: 0,0
5,27V 12CCA
15,50V 42.5A 1:02:34
Diagnostic Mode Ah: 0,7
Charging Required
14,50V 35.5A 1:35:21
Automatic Mode Ah: 4,6
12,98V 246CCA 0:00:20
Charging Aborted Ah: 0,0
Analyzing Battery…
12,81V 652CCA 0:40:36
Good Battery Ah: 27,1