Programmable Battery Charger Manual
1.1 Front Panel
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| Backlit LCD Display |
Displays the charger parameters and status. |
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| Keypad |
Allows full manual parameter entry. The keypad is disabled when
the charger is connected to the PC. |
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| Wheel Knob |
Increases or decreases V-set, V-Con, I-Con & P-Con parameters. |
|
| Output Sockets |
Channel 1: Programmable Output Source
Red: Positive terminal
Blue: Negative terminal
Yellow: Earth connection (Connected to AC Earth)
Channel 2: 5 V DC Output Source. Source is active
irrespective of output status. (Discontinued, with reduced price)
Red: Positive terminal
Blue: Negative terminal
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Power Button
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Turns the charger On / Off |
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Keypad Quick Guide
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| Key |
Description
|
|
| Shift |
1. Adjusts the output voltage.
2. Moves the cursor when setting parameters.
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| Enter |
Confirms an input.
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| Output |
Turns the charger output on or off.
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| V-Con, I-Con,
P-Con |
Sets the parameter limits.
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| V-Set (4) |
Sets the output voltage to the V-Con value (Shift→4→Enter)
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| Rem (5) |
Enables the keypad after the PC is disconnected
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| Lock (6) |
Locks the keypad and Wheel Knob. Pressing down for 2 seconds
unlocks the keypad.
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| CE (7) |
Resets a Wheel Knob-adjusted parameter limit to a previously set value. CE should be pressed before confirming a value.
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| Norm (8) |
Disables the fine Wheel Knob adjustments.
Voltage: 1 V, V-Con 1 V, I-Con: 0.1 A, P-Con: 1 W
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| Fine (9) |
Enables fine Wheel Knob adjustments.
Voltage: 0.01 V, V-Con: 1 V, I-Con: 0.01 A, P-Con: 1 W
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1.2 Backlit LCD Display
Parameters
P1 : Voltage
P2 : Current
P3 : Power
P4 : Voltage Limit
P5 : Current Limit
P6 : Power Limit
Status
S1 : Remote Connection
S2 : Keypad / Wheel Lock
S3 : Output
S4 : Over Temperature
S5 : Fine Adjustments
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1.3 Charger Parameters
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Voltage Limit
(V-const) |
Sets the maximum voltage output allowed by the charger.
1. Press the V-Con button on the keypad. The V-const symbol will flash.
2. Press Shift on the keypad to move the flashing cursor to the first digit.
3. Enter the required voltage limit with the numbers on the keypad.
4. Press enter to confirm.
Alternatively, you can also change the V-const value with the wheel knob:
1. Press the V-Con button on the keypad. The V-const symbol will flash.
2. The voltage limit can be adjusted in 1 V steps by rotating the knob in
either direction.
3. Press Enter to confirm.
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|
Current Limit
(I-const) |
Sets the maximum current output allowed by the charger.
1. Press the I-Con button on the keypad. The I-const symbol will flash.
2. Press Shift on the keypad to move the flashing cursor to the first digit.
3. Enter the required current limit with the numbers on the keypad.
4. Press enter to confirm.
Alternatively, you can also change the I-const value with the wheel knob:
1. Press the I-Con button on the keypad. The I-const symbol will flash.
2. The current limit can be adjusted in 0.1 A steps by rotating the knob in
either direction.
3. Press Enter to confirm.
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|
Power Limit
(P-const) |
Sets the maximum power output allowed by the charger.
1. Press the P-Con button on the keypad. The P-const symbol will flash.
2. Press Shift on the keypad to move the flashing cursor to the first digit.
3. Enter the required power limit with the numbers on the keypad.
4. Press enter to confirm.
Alternatively, you can also change the P-const value with the wheel knob:
1. Press the P-Con button on the keypad. The P-const symbol will flash.
2. The power limit can be adjusted in 1 W steps by rotating the knob in
either direction.
3. Press Enter to confirm.
Note: Reducing the power limit will automatically reduce the current limit. The
Power limit must always equal the product of the voltage limit and the current
limit.
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|
| Voltage (V) |
Sets the output voltage of the charger.
1. Press the Shift button on the keypad. The first number on the Voltage
display will flash.
2. Enter the required output voltage via the keypad.
3. Press enter to confirm.
The output voltage can also be adjusted in 1 V steps using the wheel knob
directly. If the Fine (9) button is pressed, the output voltage is adjusted in 0.01 V
steps. To exit Fine mode, press the Norm (8) button on the keypad.
To automatically set the output voltage to the maximum pre-set voltage (V-
const),
1. Press the Shift button.
2. Press V-set (4) on the keypad and press Enter.
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|
| Current (A) |
The current is set via the Current Limit (I-const). Batteries are charged
at the Current Limit until the battery voltage is equal to the charger
output voltage. Once the battery voltage reaches the charger set point,
the output current will start reducing until the battery is fully charged
where the current is 0. This charging pattern is also known as Constant
Voltage Constant Current charging.
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|
| Power (W) |
The Power displayed on the LCD display is the product of the output
voltage and the output current.
Note on settings:
• Any incorrectly entered values can be reset to the previously set value
by pressing Shift, then CE (7), and finally Enter.
• Pressing the Lock (6) button prevents any manual entering of values
via the keypad and wheel knob. To unlock, press down the Lock (6)
button again for approximately 2 seconds until a beep is heard.
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Before Using the Charger:
-
Always ensure the correct polarity before connecting the battery and charger.
- The charger parameters should be correctly set for the battery in use before turning on the output.
- Do not connect the positive clamp to the negative clamp of the charger.
Turning on the Output
The output of the charger is turned on of off by pressing the Output button on the keypad. The
status of the output is displayed on the lower right hand corner of the backlit LCD Display.
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1.4 Charger Status
|
| Output
ON/OFF |
Displays if the charger output is turned on or off.
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|
Over-Temperature
NORMAL/
OVERHEAT: |
Displays if the internal temperature of the charger has
exceeded its permitted setting. If the temperature is too high,
the Overtemp symbol appears.
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Wheel Knob Mode
NORMAL/FINE |
NORMAL/FINE Displays whether the Wheel Knob is in Normal or Fine
Mode. In Fine more, the fine symbol appears on the display.
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Connection
CONNECTED/
DISCONNECTED: |
Displays the connection status between the charger and PC.
Once the PC is disconnected, the remote symbol on the
LCD display may still remain. Press the Rem (5) button on
the keypad to manually set the charger values using the
keypad and wheel knob.
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|
Lock Status
UNLOCKED/
LOCKED: |
Displays whether parameters can be set using the Keypad
or the Wheel Knob. The locked symbol appears when the
Lock (6) button is pressed. When the charger is connected
to the PC, the keypad locks but the locked symbol will not
appear on the LCD Display.
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1.5 Charging Example
A user sets the following parameters and turns the Output on:
 |
Voltage:
14.50V
Voltage Limit: 20V
Current Limit: 3.00A |
Observations:
- The charging current remains at the current limit of 3.00 A until the battery voltage reaches
14.50 V. Once it does, one should expect the current to drop.
- Turning the wheel knob will adjust the output voltage in 1.0 V intervals. If the Fine (9) button on
the keypad is pressed, the interval is reduced to 0.01 V. Pressing the Norm (8) button resets
the interval to 1.0 V.
- Pressing the Lock (6) button prevents accidental changing of the preset values. The locked
symbol will be displayed at the bottom of the LCD display. Holding it down for 2 seconds will undo the locking.
- If the output button is pressed, the output current drops to 0.000 A and the voltage increases to
its set value of 14.50 V. The Off symbol on the bottom right corner will appear.
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2.1 Harware Troubleshooting
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| Problem: |
Recommended Solutions:
|
|
| No display |
• Check if the unit is plugged in.
• Check the connection between the
power cord and the unit.
• Check the AC fuse at the back of the
unit.
|
|
| Keypad not responding |
• Check if the Lock (6) key had been
pressed. Press and hold the Lock (6)
key for 2 seconds to unlock.
• The keypad is locked when the unit is
connected to the PC. The remote
symbol will appear on the LCD
Display.
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3.1 Operational Procedure
To maintain the condition of the unit and guarantee the safety of the user, the following must
always be observed:
• The Programmable Battery Charger is designed for connection to 110 V / 230 V; 60
Hz / 50 Hz AC input.
• The output load should not exceed the rating of the unit.
• Always ensure a well ventilated area for operation of the unit.
• The unit should not be opened unless by an authorized technician.
• No modification to the unit is allowed.
• The 110 V / 230 V switch should be in the correct position before connecting the
charger to the AC mains.
• The unit is not to be used under the following conditions:
• Excessive moisture or air humidity
• Dust of combustible gasses, fumes or solvents
• Thunderstorm conditions with high electrostatic activity
Failure to observe the conditions stated above may lead to damage to the unit or dangers
such as electric shocks and short circuits.
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