JUNCTEK KL-F Series User manual

I

KL-F Series
Battery Monitor
Shunt sampling
User Manual
Rev1.0 May 2022

I
Guaranty and declaration
Copyright
Hangzhou Junce Instruments Co., Ltd. all right reserved.
Trademark Information
JUNCTEK is a registered trademark of Hangzhou Junce Instruments Co., Ltd.
Notices
JUNCTEK products are covered by P.R.C. patents, issued and pending.
This document replaces all previously published documentation.
Contact Us
If you have any problem or requirement when using our products or this
manual, please contact JUNCTEK.
E-mail: [email protected]
Website: www.junteks.com

II
Safety requirements
Safety regulations and safe use
General Safety Summary
Please review the following safety precautions carefully before putting the
meter into operation so as to avoid any personal injury or damage to the meter
and any product connected to it. To prevent potential hazards, please follow
the instructions specified in this manual to use the meter properly.
Observe All Terminal Ratings
To avoid fire or shock hazard, observe all ratings and markers on the meter
and check your manual for more information about ratings before connecting
the meter.
Use Proper Over-voltage Protection
Ensure that no over-voltage (such as that caused by a bolt of lightning) can
reach the product. Otherwise, the operator might be exposed to the danger of
an electric shock.
Do Not Operate Without Covers
Do not operate the meter with covers or panels removed.
Do Not Insert Anything Into the Air Outlet
Do not insert anything into the air outlet to avoid damage to the meter.
Avoid Circuit or Wire Exposure
Do not touch exposed junctions and components when the unit is powered on.
Do Not Operate With Suspected Failures
If you suspect that any damage may occur to the meter, have it inspected by
JUNCTEK authorized personnel before further operations. Any maintenance,
adjustment or replacement especially to circuits or accessories must be
performed by JUNCTEK authorized personnel.
Provide Adequate Ventilation
Inadequate ventilation may cause an increase of temperature in the meter,
which would cause damage to the meter. So please keep the meter well
ventilated and inspect the air outlet and the fan regularly.
Do Not Operate in Wet Conditions
To avoid short circuit inside the meter or electric shock, never operate the
meter in a humid environment.

III
Do Not Operate in an Explosive Atmosphere
To avoid personal injuries or damage to the meter, never operate the meter in
an explosive atmosphere.
Keep Meter Surfaces Clean and Dry
To avoid dust or moisture from affecting the performance of the meter, keep
the surfaces of the meter clean and dry.
Prevent Electrostatic Impact
Operate the meter in an electrostatic discharge protective environment to
avoid damage induced by static discharges. Always ground both the internal
and external conductors of cables to release static before making connections.
Handle with Caution
Please handle with care during transportation to avoid damage to keys, knobs,
interfaces, and other parts on the panels.
Notices
1. Do not exceed the voltage and current range of the meter, otherwise the
meter will be damaged.
2. The positive and negative poles cannot be reversed, and the reverse
connection cannot be handled correctly.
3. The shell of the meter is fragile and easy to corrode. Please don't hit or
close to chemicals to avoid corrosion.
4. Storage temperature: -25~50℃, and keep the meter in a dry environment.
5. Do not attempt to disassemble the meter， it will void the warranty. There are
no user-serviceable parts inside the meter. Repairs can only be made through
designated repair outlets or sent back to the factory.
6. Please do not move the meter violently to avoid causing irreparable
damage to the internal circuit. If the meter does not work properly, please
contact the supplier!

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Contents
Guaranty and declaration ......................................................................I
Safety requirements ..............................................................................II
Safety regulations and safe use ....................................................................... II
Notices ................................................................................................................. III
Inspection ...............................................................................................1
Chapter 1 Overview .............................................................................. 2
1. Brief Introduction .............................................................................................2
2. Dimension ........................................................................................................ 2
3. Technical parameter ....................................................................................... 3
Chapter 2 Meter Instruction ................................................................. 5
1. Measurement Module Introduction .............................................................. 5
2. Sampler introduction ...................................................................................... 6
3. APP interface introduction ............................................................................. 7
Chapter 3 Basic Operation of the meter ...........................................10
1. Mobile control ................................................................................................ 10
2. Wiring methods ............................................................................................. 23
3. Communication protocol control .................................................................25
Chapter 4 Troubleshooting .................................................................30
Chapter 5 More Product Information ................................................ 30
Chapter 6 Contact Us ......................................................................... 30
Appendix 1:Interface text and abbreviations ....................................31

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Inspection
When you get a new KL-F series coulometer, it is recommended that you
inspect the meter according to the following steps.
Inspect the Packaging
If the packaging has been damaged, do not dispose the damaged
packaging or cushioning materials until the shipment has been checked for
completeness and has passed both electrical and mechanical tests. The
consigner or carrier shall be liable for the damage to the meter resulting from
shipment. We would not be responsible for free maintenance/rework or
replacement of the meter.
Check the Contents
Please check the contents according to the packing lists. If the meter is
damaged or incomplete, please contact your JUNCTEK sales representative.
KL-F series of Measuring module
KL-F series of the Sampler
1pc
1pc
Temperature Sensor
1pc
4P connection cable
1pc
3P connection cable
1pc
Terminal
1pc
Quick guide
1pc
Inspect the Meter
In case of any mechanical damage, missing parts, or failure in passing the
electrical and mechanical tests, contact your JUNCTEK sales representative.

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Chapter 1 Overview
1. Brief Introduction
KL-F series DC voltage and current meter/battery coulomb meter is a new
type of coulomb meter that can measure various parameters such as voltage,
current, power, charge and discharge capacity, watt-hour, time, etc., and can
also set parameters to achieve over-voltage protection , under-voltage
protection, over-current protection, over-power protection, over-temperature
protection and other protection functions. The meter can automatically identify
the direction of the current, and can monitor the battery capacity in real time.
During use, connect the sampler in series to the negative wire of the battery
according to the wiring diagram, and then connect the sampler and
measurement module through the data line, install the matching mobile phone
APP, view the measured data through Bluetooth, control the meter and
firmware upgrade through the mobile phone APP.
2. Dimension
The measurement module
The hole position
100A sampler
100A sampler hole position

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400A sampler
600A sampler
3. Technical parameter
Model
KL105F
KL110F
KL140F
KL160F
KL610F
Sampling method
Shunt
Shunt
Shunt
Shunt
Shunt
Voltage
measurement
range
(External power
supply)
0-120V
0-120V
0-120V
0-120V
0-600V
Voltage
measurement
range
(Self-powered)
10-120V
10-120V
10-120V
10-120V
10-120V
Voltage resolution
0.01V
0.01V
0.01V
0.01V
0.01V
Current
measurement
range
0~50A
0~100A
0~400A
0~600A
0~100A
Current resolution
0.01A
0.01A
0.1A
0.1A
0.01A
Relay
Relay is not provided, need to be purchased separately
Temperature
measurement
range
-20-120℃
Capacity display
range
0%~100%
Power
measurement
range
0~72KW
Power resolution
0.01W
Amp-hour
measurement
range
0~9999.99AH

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Capacity
resolution
0.001AH
Watt-hour
measurement
range
0~9999.99kWH
Watt hour
resolution
0.01WH
Bluetooth
communication
distance
Max. 10 meters (without obstacles)
Voltage accuracy
±2%+3 digits
Current accuracy
±5%+10 digits
Sampling rate
1 time/sec
Measuring module
power
consumption
About 0.4W
OPP
0-99999.99W
NCP
0~50A/100A/400A/600A
OCP
0~50A/100A/400A/600A
OVP
0~120V/600V
LVP
0~120V/600V
OTP
0-120℃

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Chapter 2 Meter Instruction
1. Measurement Module Introduction
Figure 3-1-1 Schematic diagram of KL-F series measurement module
Table 3-1-1 KL-F series measurement module instructions
No.
Instruction
No.
Instruction
1
Indicator light
5
Display reserved
interface
2
2-wire, 3-wire power
supply selector switch
6
Relay output control
interface
3
Power supply interface
7
Sampler interface
4
485 communication
connection interface
8
External temperature
measurement interface
(1) Indicator light
The indicator light can be used to check the output status.
(2) 2-wire, 3-wire power supply selector switch
The toggle switch can be used to select external power supply or
self-powered. The switch to 2W is suitable for self-powered; the switch to 3W
is suitable for external power supply.
(3) Power supply interface
There are three power supply interfaces, battery positive interface: Vsns,
external power supply positive interface: VEXT, external power supply
negative interface: GND.

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(4) 485 communication connection interface
It is used to connect the supervisor computer interface, and also can
connect to another measurement module through this interface to realize
multi-meter communication. The internal order from left to right is: B, A, GND,
NC.
(5) Display reserved interface (if you need display module, please purchase
separately)
Connect with the display module. When the measurement module has
power supply, the communication interface is live. The internal order from left
to right is: B, A, GND, +5V.
(6) Relay output control interface
The relay output control interface can be used with relays. The internal
sequence from left to right is: GND, OUT, VEXT.
(7) Sampler interface
Connect with sampler to detect current. The internal sequence from left
to right is: VCC, GND, ISNS+, ISNS-.
(8) External temperature measurement interface
Connect with temperature sensor to measure external temperature. The
internal sequence from left to right is: TSNS, GND.
2. Sampler introduction
Figure 2-2-1 KL-F series sampler (100A sampler as an example)
Table 2-2-1 KL-F series sampler instructions (100A sampler as an example)
No.
Instruction
No.
Instruction
1
Battery negative
terminal
2
Sampler interface
(1) Battery negative terminal
The negative terminal of the battery is connected to the screw with the
GND or BATT- mark.

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(2) Sampler interface
Connect with the sampler interface of the measurement module for
current measurement.
3. APP interface introduction
Figure 2-3-1 KL-F series APP interface
Table 2-3-1 KL-F series APP interface instructions
No.
Instruction
No.
Instruction
1
Interface title bar
10
Connect the
Bluetooth switch
2
Device ID
11
Product model
3
Communication
address
12
Control state
4
Measured voltage
value
13
Measured current
value
5
Battery remaining
capacity
14
Power

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6
Battery capacity
percentage
15
Power
consumption
7
Default battery
capacity
16
Clear data
8
Ambient
temperature
17
Cumulative
capacity
9
Battery life
(1) Interface title bar
Click the main interface, system settings, about us, you can enter the
corresponding interface.
(2) Device number
After the device is successfully connected, the device number will pop out.
(3) Communication address
The communication address range is P00-P99, P01 represents the
current communication address is P01.
(4) Measured voltage value
Indicates the voltage value of the voltage measurement interface in the
power supply interface.
(5) Remaining battery capacity
Indicates the remaining capacity of the battery through charging and
discharging, remaining capacity = preset battery capacity-cumulative capacity.
(6) Battery capacity percentage
The remaining capacity of the battery is highlighted more intuitively with
graphics, where the value of 100% represents that the remaining capacity of
the battery accounts for 100% of the preset battery capacity.
(7) Preset battery capacity
Indicates the preset capacity of the battery.
(8) Ambient temperature
Display the current ambient temperature: 29°C, which means that the
temperature of the environment where the external sensor is located is 29°C.
(9) Battery life
Calculate the battery life and charging time based on the charge and
discharge current and capacity.
(10) Connect the Bluetooth switch

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The Bluetooth module in the measurement module can be disconnected
and connected.
(11) Product model
The model of the product will be displayed after successful Bluetooth
connection.
(12) Control state
Can control the output state.
(13) Measured current value
Represents the actual current value passing through the sampler. The
current color is green when charging, and brown when discharging.
(14) Power
The measured current power value, the unit is W.
(15) Power consumption
Represents the actual accumulated electric energy during the running
time, the unit is KW.h.
(16) Clear data
After clicking, you can clear the data of the time, power consumption, and
accumulated capacity.
(17) Cumulative capacity
Indicates the accumulated capacity of charging and discharging during
this period of operation.

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Chapter 3 Basic Operation of the meter
1. Mobile control
(1) Instructions for using the Android App
Demonstration video of installation and operation of Android mobile APP:
http://68.168.132.244/KL-F_app_Android_EN.mp4
1) APP download
Google download link:
https://play.google.com/store/apps/details?id=com.juntek.celiangvat
Server download link:
http://68.168.132.244/app/KL/KL.apk
If you can't download it, you can ask for the software from the customer
service staff.
2) Mobile App Software Installation
This software only supports Android5.0 and above systems. The location
services will be applied during the installation process. Please agree and turn
on location services. This manual corresponds to software version 1.4.
Different versions may be slightly different. It is recommended to upgrade to
the latest software for a better user experience. The installation steps are
shown in the following figures 3-1-1 to 3-1-3.
Figure3-1-1 Installation
step 1
Figure 3-1-2 Installation
step 2
Figure 3-1-3 Installation
Step 3
3) Software update
Click the App icon, after the App is started, the system will automatically
check whether the App version is updated in the background, and the new
version will pop up to remind you to update. The App downloaded by Google
Play needs to detect the new version manually.

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4) App interface display
Figure 3-1-4 Main
interface
Figure 3-1-5 System
Settings
Figure 3-1-6 About us
5) App operating instructions
A. Online
Open the APP on the homepage and click the search in the upper right
corner to search for the corresponding Bluetooth. After clicking the
corresponding Bluetooth, "Connected" will pop up, and the search in the upper
right becomes disconnected, and the machine model appears, indicating that
the connection is complete. As shown in Figure 3-1-7, Figure 3-1-8, and Figure
3-1-9.
Figure 3-1-7 Online 01
Figure 3-1-8 Online 02
Figure 3-1-9 Online 03

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B. Main interface operation
Click the title of the main interface to enter the main interface of the APP.
a. Output state control switch
Click the "Output state control switch" to control the output state, and
different states will be displayed under different protection states, as shown in
Figure 3-1-10, the output state is off, and Figure 3-1-11 over voltage protection
state.
b. Voltage fine adjustment
Click the voltage value, the "Input:Voltage calibration" pop-up box will pop
up, enter the corresponding value for fine-tuning, the default voltage calibration
is 100. As shown in Figure 3-1-12 below
c. Current fine adjustment
Click the value of the current, the "Input:Current calibration" pop-up box
will pop out, enter the corresponding value for fine-tuning, the default current
calibration is 100. As shown in Figure 3-1-13current calibration.
d. Voltage range
Click on the voltage dial to pop up the pop-up box "input voltage range",
enter the corresponding value, you can adjust the scale range of the voltage
dial, as shown in Figure 3-1-14 Voltage scale range.
e. Current scale maximum value
Click the current dial to pop out the pop-up box "Enter the maximum
current value", enter the correct value, you can adjust the maximum scale
value of the current dial, as shown in Figure 3-1-15 Current scale maximum
value.
f. Clear data
Click the Clear data button, and the "Clear accumulated data" pop-up box
will pop out. After clicking OK, reset the time, power consumption, and
accumulated capacity, as shown in Figure 3-1-16.
g. Percentage of remaining capacity
Click the battery icon, the "Input:Percentage of remaining capacity"
pop-up box will pop out, enter the corresponding value, click OK to complete
the modification, as shown in Figure 3-1-17 remaining capacity percentage.
After using or replacing the battery for the first time, the capacity value
displayed by the volt-ampere meter is not the actual value of the battery, and
capacity setting is required.
h. Preset battery capacity
Click the setting button to the right of the preset battery capacity, the
"Input:Preset battery AH. value" pop-up box will pop out, enter the
corresponding value, click OK to complete the modification, as shown in Figure
3-1-18 to preset the battery capacity.
It is necessary to correctly set the effective capacity of the battery and the

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current remaining power percentage before using it for the first time. If the
effective capacity of the battery is unknown or the current remaining capacity is
not known, it needs to be tested according to the following steps:
1Empty the battery pack or put it until you don’t want to discharge it.
2Enter the preset battery capacity setting in the system settings, and
set the capacity value as large as possible (for example, set the estimated
20Ah to 30Ah);
3Set the remaining capacity percentage to 0%, and then charge the
battery pack;
4Check the remaining capacity value displayed after fully charged, and
set this value to the preset battery capacity;
i. Fine adjustment of ambient temperature
Click on the ambient temperature, the "Input:Temperature calibration"
pop-up box will pop out, enter the corresponding value for fine-tuning, the
default temperature calibration is 100. The ambient temperature is shown in
Figure 3-1-19 below.
j. Ambient temperature unit switching
Click the ambient temperature value to pop up the pop-up "Temperature
Unit", select Celsius or Fahrenheit, the default is Celsius. Figure 3-1-20
Temperature unit as shown below.
Figure 3-1-10 Output
status is off
Figure 3-1-11 Over
voltage protection status
Figure 3-1-12 Voltage
calibration

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Figure 3-1-13 Current
calibration
Figure 3-1-14 Voltage
range
Figure 3-1-15Current
maximum
Figure 3-1-16Clear data
Figure
3-1-17Percentage of
remaining capacity
Figure 3-1-18Default
battery capacity