2-6
MAC
1200 resting ECG analysis system
Revision D
2012250-095
Functional Description: PCB NC Battery Charge
Battery-Dependent Device Behavior
Depending on the status of the battery and the status of the device, the following
behavior occurs.
Table 1. Battery State
State 1
Battery depleted, line power supply is connected up
Battery charged in rapid mode; when fully charged, switchover to trickle charging.
State 2
Battery full, line power supply is connected up
Battery charged in rapid mode for some minutes till the charging circuit recognizes battery
full, then switchover to trickle charging.
State 3
Battery depleted, no line power supply, device is switched on
Device inoperative.
State 4
Battery full, no line power supply, device is switched on
Device fully operative. When battery is almost depleted, the LEDBAT signal is activated to
indicate that the device should be charged by connecting to the line power supply. If the
operation is continued without line power, MAC 1200/ 1200 ST will shut down itself when a
minimum level is reached to prevent the battery from a excessive discharge.
State 5
Battery depleted, line power supply is connected up, device is switched on
Battery is charged in rapid mode, device is fully operative, including recording. During
recording, the charging current is reduced. If a lot of recordings take place in this phase,
the battery is not fully charged within 4 hours.
Summary of Contents for MAC 1200
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Page 11: ...Revision D MAC 1200 resting ECG analysis system 1 1 2012250 095 1 The Basics ...
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Page 19: ...Revision D MAC 1200 resting ECG analysis system 2 1 2012250 095 2 Functional Description ...
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Page 45: ...Revision D MAC 1200 resting ECG analysis system 3 1 2012250 095 3 System Test Function ...
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Page 69: ...Revision D MAC 1200 resting ECG analysis system 4 1 2012250 095 4 Repair Instructions ...
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Page 79: ...Revision D MAC 1200 resting ECG analysis system 5 1 2012250 095 5 Troubleshooting ...
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Page 85: ...Revision D MAC 1200 resting ECG analysis system 6 1 2012250 095 6 Adjustment Instructions ...
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Page 89: ...Revision D MAC 1200 resting ECG analysis system 7 1 2012250 095 7 Service and Maintenance ...
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Page 101: ...Revision D MAC 1200 resting ECG analysis system 8 1 2012250 095 8 Parts List ...
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Page 111: ...Revision D MAC 1200 resting ECG analysis system 9 1 2012250 095 9 Specifications ...
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Page 123: ...Revision D MAC 1200 resting ECG analysis system 10 1 2012250 095 10 Drawings ...
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