CellLog 8M
Cell Voltage Monitor
USER’S MANUAL
SHENZHEN JUNSI ELECTRONIC CO.,LTD
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Cell Voltage Monitor CellLog 8M
Thank you for purchasing the CellLog 8M. Please read the entire User‘s Manual completely and attentively
as it contains a wide variety of specific programming and safety information.
Specifications
Lithium (LiPo/LiIo/LiFe) battery cell count: 2 – 8 series
Pack voltage range: 4.0 – 43.0VDC (USB can provide lower voltage 1.0V)
Alarm pack voltage range: 0.1 – 43.0VDC
Cell voltage range: 1.3 – 4.9VDC
Alarm cell voltage range: 1.3 – 4.9VDC
Voltage display resolution: 1mV
Current loading of test: 8mA
Maximum voltage for alarm port: 50VDC
Current drain for alarm port: <500mA
Weight: 17g
Dimensions (L X W X D): 62X39X12mm
2.44‖X1.53‖X0.47‖
Special features
Small size with multiple functions, backlight 128*64 lattices LCD and Buzzer Tone Reminder; the
interface can be operated smoothly.
CellLog 8M can not only measure 2-8S Li battery individual voltage, but also measure NiMH, NiCd, Pb
battery pack voltage.
It can be set Individual Voltage Alarm and Pack Voltage Alarm, Overvoltage Alarm, Low Voltage Alarm,
Differential Voltage Alarm and Time Over Alarm. What‘s more, the extra alarm output can be linkage
controlled by the users.
It has 8 sets default monitor alarm settings, which can be selected for different battery packs.
CellLog 8M has been 100% calibrated before it enters to the market, at the same time, it supports the
calibration by users themselves.
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Cell Voltage Monitor CellLog 8M
Unpack inspection
The following items are included in the package. Contact your supplier if any items are missing.
Standard items:
One copy of the User’s manual on CDROM
One Alarm output line
One pack voltage measurements line with clips
Optional items:
See details in ―Optional parts‖ (P14)
CW-P220
CW-C220
20mm
20mm
CDROM
85 X 85mm
-4-
Cell Voltage Monitor CellLog 8M
External controls and connections
1. Input plug 2. LCD screen 3. Function button 4. Beep 5. Alarm port
+
8
7
6
5
4
3
2
1
TYPE
HOLD
MENU
PIN 1
PIN 9
8
7
6
5
4
3
2
1
1S
+
-
2S
+
-
3S
+
-
4S
+
-
5S
+
-
6S
+
-
7S
+
-
8S
+
-
PIN 1
PIN 9
8
7
6
5
4
3
2
1
1S
+
-
2S
+
-
3S
+
-
4S
+
-
5S
+
-
PIN 1
PIN 9
8
7
6
5
4
3
2
1
BATT.
PACK
(4—43V)
+
CellLog 8M Connection Diagram
①
② ③ ④
⑤
-5-
Cell Voltage Monitor CellLog 8M
Program flow chart
Voltage Monitor
Tone Setting
LCD Brightness& Contrast
Calibration Select
User Calibration
<MENU>
>3 Seconds
Note: When you turn off the CellLog 8S it will remember the current screen and start from that screen when next turned on again.
MAIN MENU
System...
Calibration
SYSTEM SETTING
Beep Tone
LCD Screen
ALM Output
Start...
Power Managemen
BEEP TONE
Key Tone
Hint Tone
Alarm Tone
CALIBRATION
⊙Default
○User Setting
Brightness
- ■■■■■■ +
Contrast
- ■■■■■■ +
1------ 2------
3------ 4------
5------ 6------
7------ 8------
ALM Output Setting
ALARM OUTPUT
⊙NO.
○NC.
①
②
<HOLD>
>3 Seconds
<HOLD>
>3 Seconds
Data Hodling
Time is shown in the upper
right corner blinkingly
<TYPE>
>3 Seconds
<MENU>
>3 Seconds
③
<▢>+<▼>
<MENU>
>3 Seconds
④
⑤
Main Menu
Select Type
Details in Page 6
Search Results
Details in Page 6
CellLog
POWER ON
TYPE XXXXXXXXXX
Do not support
the logging!
S/N:XXXXXXXXXX
CellLog 8M
Ver X.X.X
www.hillrc.com
<▢>
<▼>
<▢>
<▼>
<▢>
<▼>
7S 28.79V
HV 28.80V
LV 28.78V
▣P 0.020V
14.013V 24.150V
34.110V 44.152V
54.087V 64.162V
74.120V 8------
7S28.79V▣V149mV
14.0124.1534.11
44.1554.0864.16
74.128----
1234567- 7S 28.79
6H 4.162
1L 4.013
▣V 149mV
Note: means if no operation on the button for 1 minutes, the system will return to monitor screen automatically.
START SETTING
Start music
Logo Screen
Inf.Screen
Start Setting
Logo Screen
Inf. Screen
Power Management
POWER MANAGEMEN
⊙Not Save
○Backlight OFF
○Sleep Mode
-6-
Cell Voltage Monitor CellLog 8M
48m:10
Pack Alarm Voltage Setting
Alarm Trigger Select
SELECT TYPE
⊙LiPo
○Lilo
○LiFe
ALARM SETTING
Cells Voltag
Pack Voltage
Safety Timer
Alarm Trigger
PACK ALARM VOLT
HV43.00V
LV1.000V
▣P42.00V
ALARM TRIGGER
Over Voltag
Low Voltage
Difference
Time Over
LiPo
Select
Rename
Alarm
CELLS ALARM VOLT
HV 4.22V
LV 3.00V
▣V 500mV
SAFETY TIMER
Minutes(1-999)
120
Star t Location
Ending Location
1Low 2------
3------ 4------
5------ 6------
7------ 8------
<MENU>
<MENU>
Alarm time points
If there is alarm, the alarm events/alarm
time will be shown alternatively at the
corresponding battery number place.
③
<MENU>
>3 Seconds
<▢>+<▼>
①
<MENU>
>3 Seconds
<TYPE>
>3 Seconds
④
Select Type
Search Results
Voltage Monitor
Note: The upper right corner of the screen will alternatively blink time 00m: 00
Note: The upper right corner of the screen will alternatively blink ending time xxx:xx
<▢>
<▼>
<▢>
<▼>
<▢>
<▼>
7S 28.79V 00m:00
HV 28.80V
LV 28.78V
▣P 0.020V
14.013V 24.150V
34.110V 44.152V
54.087V 64.162V
74.120V 8------
7S28.79V▣V149mV
14.0124.1534.11
44.1554.0864.16
74.128----
1234567- 7S 28.79
6H 4.162
1L 4.013
▣V 149mV
00m:00
00m:00
00m:00
<▢>
<▼>
<▢>
<▼>
<▢>
<▼>
7S 21.79V 50m:20
HV 21.80V
LV 21.78V
▣P 0.020V
13.013V 23.150V
33.110V 43.152V
53.087V 63.162V
73.120V 8------
7S21.79V▣V149mV
13.0123.1533.11
43.1553.0863.16
73.128----
1234567- 7S 21.79
6H 3.162
1L 3.013
▣V 149mV
50m:20
50m:20
50m:20
Note:
means if no operation on the button for 1 minutes,
the system will return to monitor screen automatically.
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Cell Voltage Monitor CellLog 8M
Menu Operation:
1. Select the menu items by <▲> /<▼> buttons, the selected item will be shown in white.
2. Press < > to the following menu, and hold < >for more than 3 seconds, it will return to the upper menu.
Symbol Meanings:
Display Symbols
The meaning of the Symbols
Note
nS
total voltage of the pack
n:0-8, the cell count
nH
the highest individual cell voltage
n:0-8, the highest cell number
nL
the lowest individual cell voltage
n:0-8, the lowest cell number
▣V
the maximum voltage difference between the cells
▣V = nH - nL
HV
The voltage maximum value
LV
the voltage minimum value
▣P
the pack maximum voltage difference
▣P = HV - LV
mmM:ss or hhH:mm
the time entering to logging
ss:second ,mm:minute ,
hh: hour
⊙/○
Single choice Do/Do not
/□
Multiple choice Do/Do not
T_OVER
Safety time alarm
LOW
Low voltage alarm
OVER
Over voltage alarm
DIFF
Voltage difference alarm
Button Function
CellLog has 3 buttons, which everyone owns the first and second functions. The first function is trigger after
only one click; the second function is trigger after 3 seconds holding of the button.
Press button
Condition
Button Function Description
<▲>
Click
1. Turns up the menu
2. Increase the value
3. Select the character input
Hold for 3 seconds
Enter to Alarm type select menu
<▼>
Click
1. Turns down the menu
2. Decrease the value
3. Delete the character
Hold for 3 seconds
Trigger Open/Close Logging Function
< >
Click
Confirmation
Hold for 3 seconds
Enter to System Setting Menu
<▲>+<▼>
Click
Check holding information
Hold for 3 seconds
Save users voltage calibrated value
Note：<▲>+<▼> means pressing <▲> and <▼> at the same time.
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Cell Voltage Monitor CellLog 8M
TYPE XXXXXXXXXX
Do not support
the logging!
QUICK START
CellLog Power On
(2 ways: one is connecting the battery through the left 9 Pin socket, the other one is through the USB port),
System self-check, and then shows the SN and version number, the display information are as below:
The first line is the current selected Setting Type (See
detail in P10).
Note: CellLog 8M has no Logging function, if it is necessary,
please choose CellLog 8S.
Voltage Monitor
There are 4 interface choices, which can be shifted by <▲> or <▼>buttons.
As the left pictures: the ‘7‘ in ‖7S‖ means cell counts; ‘6H‘
means the 6th cell voltage is the highest; ‘1L‘ means the 1st
cell voltage is the lowest.
If the monitor voltage trigger alarm, the corresponding
voltage and alarm display (LOW, OVER or DIFF) shows
alternatively.
The cell number and (L, O, D) shows alternatively.
‘LOW‘ or ‗L‘ means: Low voltage alarm
‘OVER‘ or ‗O‘ means: Over voltage alarm
‘DIFF‘ or ‗D‘ means: Voltage difference alarm. They will be
displayed at the same time at the highest and the lowest
cell voltage interface.
Monitor the pack voltage
Display respectively: Current pack voltage, Max. Pack
voltage, Min. Pack voltage, Pack voltage difference. (▣P =
HV-LV)
Data Holding
When in Voltage Monitor status, press <▼> button for 3 seconds, after it shows ‖Start holding…‖, the
calculagraph will be shown alternatively at the upper right corner of the LCD screen.
Press <▼> for 3 seconds again, the screen will show ‖Stop holding!‖ and then exit.
View holding Point
In the monitor status, press <▲> and <▼> at the same time to enter the view logging point status.
Three points voltage data can be searched:‖Starting holding…‖data, ‖Stop holding!‖ data, and the data of
voltage alarm during this period , which can be shifted by < > buttons. Press < > for 3 seconds，it will return
to the monitor status.
The saved data can be covered till next logging.
If the logging time is over the users setting safety time,（See Monitor Safety Time Setting in P11）, it will
trigger Safety Time Alarm, and the screen shows ‖T_OVER‖ alternatively in the upper right corner.
Alarm configuration Name
Notes
1234567- 7S 28.79
6H 4.162
1L 4.013
▣V 149mV
The highest voltage
The lowest voltage
The maximum
voltage difference
Cell Number
Voltage
Histogram
14.013V 24.150V
34.110V 44.152V
54.087V 64.162V
74.120V 8------
Cell Voltage
Cell Number
7S28.79V▣V149mV
14.0124.1534.11
44.1554.0864.16
74.128----
Pack Voltage
The Max. Voltage
Cell Number
Cell Voltage
7S 28.79V
HV 28.80V
LV 28.78V
▣P 0.020V
Pack Voltage
Max. Pack Voltage
Min. Pack Voltage
Pack Voltage Difference
<▢>
<▼>
<▢>
<▼>
<▢>
<▼>
-9-
Cell Voltage Monitor CellLog 8M
Alarm Remind
If CellLog detect the alarm events (See Alarm Trigger Settings in P11), it will remind as below:
1. The buzzer beeps every 4 seconds（【 Alarm Tone】is selected , See P12）.
2. The corresponding individual voltage and alarm remind show alternatively.
Alarm Remind Information: ―LOW‖, ―OVER‖, ―DIFF‖, ―T_OVER‖
3. ALM port will output the presetting signal.
ALM port signal information:
ALM output port signal is open collector signal, as showed below.
Please pay attention to the port voltage and current limit when you use（<50V,<500mA）
The following are ALM Output typical application.
ALM Output
+
-
Q9
ALM
+
-
VCC
Output
Level Output
R
ALM
+
-
VCC
Output
Relay Output
-10-
Cell Voltage Monitor CellLog 8M
SELECT TYPE
⊙LiPo
○Lilo
○LiFe
LiPo
Rename
New Name
LiPo-1200mAh
ALARM SETTING
Cells Voltag
Pack Voltage
Safety Timer
Alarm Trigger
LiPo
Select
Rename
Alarm
PACK ALARM VOLT
HV43.00V
LV1.000V
▣P42.00V
Pack Alarm Upper Limit
Pack Alarm Lower Limit
Pack Alarm Difference
CELLS ALARM VOLT
HV 4.22V
LV 3.00V
▣V 500mV
Cell Alarm Upper Limit
Cell Alarm Lower Limit
Cell Alarm Difference
Monitor Alarm Settings
The system can have 8 sets alarm settings, press <▲> for 3 seconds to enter SELECT TYPE menu.
The item with is the current setting.
<▲> or <▼> to select items and press < > button.
Defaulted TYPEs are: LiPo, Lilo, LiFe, User1--5
Operate the selected type settings
<▲> or <▼> to select the items, press < > to enter to the next step.
See details below.
Note: Press<▲> button to power on, it will shift to LiPo Type automatically.
Press <▼> button to power on, it will shift to Lilo Type automatically.
Press < > button to power on, it will shift to LiFe Type automatically.
Change Current Alarm Type: Select【Select】, Press < > then the item will be with , and the settings
come into effect.
Rename Alarm Type: Select【Rename】, press < > and the screen shows:
New Name Input Method: <▲> to select characters, hold it to trigger
continuously; <▼> to delete the current character; < > to confirm the
selected character; press < > for 2 times to confirm the amendment
and return; press < > for 3 seconds to cancel and return.
Alarm Parameters Setting: Select【Alarm】, press < > and the screen shows:
<▲> or <▼> to select items, press < > enter to the next step
See details below.
1) Individual Cell Voltage Alarm Settings: Select【Cells Voltage】, press < > and the screen shows:
<▲> or <▼> to increase/decrease voltage value, press < > to shift
setting items. Press < > for 3 seconds to confirm amendment and
return.
HV : 1.31V—4.90V LV: 1.30V—4.89V ▣V: 0.01—3.60V
2) Pack Alarm Voltage Setting: Select【Pack Voltage】, press < > and the screen shows:
<▲> or <▼> to increase/decrease voltage value, press < > to shift
setting items. Press < > for 3 seconds to confirm amendment and
return.
HV: 1.05V—43.00V LV: 1.00V—42.95V ▣P: 0.05—42.00V
< >
-11-
Cell Voltage Monitor CellLog 8M
ALARM TRIGGER
Over Voltag
Low Voltage
Difference
Time Over
SAFETY TIMER
Minutes(1-999)
120
Safety Time
3) Monitor Safety Time Setting: Select【Safety Timer】, press < > and the screen shows:
<▲> or <▼> to increase/decrease, press < > to confirm amendment
and return. Press< > for 3 seconds to cancel amendment and return.
Setting range: 1－999 minutes
4) Alarm Trigger Settings: Select【Alarm Trigger】, press < > and the screen shows:
<▲> or <▼> to select items, press < > to shift select /,
press< > for 3 seconds to confirm amendment and return.
Select【Over Voltage】Cell or pack voltage are over HV setting value,
then it alarms.
Select【Low Voltage】Cell or pack voltage are lower LV setting value,
then it alarms.
Select【Difference】Cell voltage is over ▣V or the pack voltage
difference is over ▣P setting value, then it alarms.
Select【Time Over】 entering HOLD status time is over setting safety
time ,then it alarms.
-12-
Cell Voltage Monitor CellLog 8M
SAVE TIME SET
Minutes(1-240)
005
SYSTEM SETTING
Beep Tone
LCD Screen
ALM Output
BEEP TONE
Key Tone
Hint Tone
Alarm Tone
Brightness
- ■■■■■■ +
Contrast
- ■■■■■■ +
ALARM OUTPUT
⊙NO.
○NC.
START SETTING
Start Music
Logo Screen
Inf.Screen
Save Time Set
Parameter Setup
Press < > for 3 seconds, and enter to the MAIN MENU, Monitor status.
System Settings: Select【System…】, press < >, the screen shows:
<▲> or <▼> to select items, press < > to have a select item, press
< > for more than 3 seconds to return.
See details below.
1) Beep Tone Settings: Select【Beep Tone】, press < >, the screen shows:
<▲> or <▼> to select the items, and press < > to shift select /,
press < > for 3 seconds to confirm the amendment and then return.
Select【Key Tone】,the buttons tone open.
Select【Hint Tone】,the status tone open.
Select【Alarm Tone】,the alarm tone open. （―Do‖ every 4 seconds）
2) LCD Brightness & Contrast Setting : Select【LCD Screen】, press < >, the screen shows:
<▲> increase, <▼> decrease, and press < > to shift
Brightness/Contrast, press < > for 3 seconds to confirm the
amendment and then return.
3) Alarm Output Signal Type Setting:【ALARM Output】
【NO.】: Always On. Two output of ALM, it‘s open when there is no
alarm; It‘ short circuit with alarm.
【NC.】: Always Close. Two output of ALM, it‘s short circuit when there
is no alarm; It‘s open with alarm.
4) Start-up Setting:【Start…】
<▲> or <▼> to select the items, and press < > to shift select /,
press < > for 3 seconds to confirm the amendment and then return.
Select【Start Music】, there will be a start music if you turn on
Select【Logo Screen】, it will display Logo Screen if you turn on
Select【Inf. Screen】, it will display Information Screen if you turn on
5) Power management Setting:【Power management】
The item with is the current setting.
【Not Save】, power save function turns off
【Backlight OFF】, turns off LCD backlight
【Sleep Mode】, turns off LCD backlight & MCU enters to Sleep Mode
Press < > to【Save Time Set】
No operation in setting time, the system will enter to the selected
Power Save Mode automatically. Press any key to normal Mode.
MAIN MENU
System...
Calibration
POWER MANAGEMEN
⊙Not Save
○Backlight OFF
○Sleep Mode
< >
-13-
Cell Voltage Monitor CellLog 8M
CALIBRATION
⊙Default
○User Setting
Calibration Settings: Select【Calibration】, and press < >, the screen shows:
【Default】: Calibration Default.
【User Setting】: See details in P13
User Calibration
The CellLog 8M has been calibrated before entering to the markets, but if the users find that there is too
much deviation, and then they can calibrate it as the following items:
Before calibration, you need prepare:
8s battery pack (the individual voltage ranges from 3.8-4.2V)
4
1
2
Digital Multimeter
Calibrating steps:
1. Connect pack balance port to CellLog 8M to confirm there are 8 cell voltage display.
2. Press <MENU> for 3 seconds to enter Main Menu--【Calibration】-> CALIBRATION--【User Setting】,then
it shows:
,
3. The current need-to-be calibrated voltage begins to blink（shows the voltage and calibrated value
alternatively）, and use multimeter to measure the individual voltage corresponding to the blinking voltage. If
the displayed value is more than the measured value, please press <▼> to decrease the displayed value to
the measured value; vice versa, please press <▲> to increase the displayed value to the measured value.
Press < > and shift to the next voltage calibration. In this way to get 8 sets voltage calibration.
4. Press <▲> and <▼> for 3 seconds to save the amendment and exit; Press < > for 3 seconds, it will
cancel the amendment and exit.
5. The above is only for 8S individual cell measurement calibration, the methods are same for CellLog 8M
measure port 1, 2 to measure pack voltage calibration.
Connect 1, 2 to the battery pack‘s negative and positive pole respectively, then follow the Step 2, 3, 4.
Note:
If the user calibrates it in a wrong way, which damage the battery or cause other serious danger, our company will
be of no responsibility.
The users’ calibrated value will not affect the calibrated before entering to the market. It can be selected by
CALIBRATION--【User Setting】or【Default】.
132.12V 2------
3------ 4------
5------ 6------
7------ 8------
14.012V 24.032V
34.018V 44.015V
54.022V 64.017V
74.002V 84.019V
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