MT Series
Models:MT11
——Remote Meter
User Manual
Contents
1.Important Safety Instructions.............................................................. 1
2.Overview ............................................................................................ 2
3.Product classification ......................................................................... 3
4. Installation ........................................................................................ 4
4.1 Base of MT11 (Optional accessory) .......................................... 4
4.2 Wall installation steps ............................................................... 5
4.3 Surface mounting steps ............................................................ 7
5.Product Features ............................................................................... 8
5.1 Front View ................................................................................ 8
5.2 Rear View ................................................................ ................. 9
6.Display and operation ...................................................................... 11
6.1LCD display ............................................................................. 11
6.2 Auto global view mode ............................................................ 12
6.3 Temperature units ................................................................... 14
6.4 Clear the generated energy .................................................... 14
6.5 Battery type ............................................................................ 15
6.6 Fault indication ....................................................................... 19
7.Technical Specifications ..................... 20
1
1.Important Safety Instructions
Thank you for selecting the remote meter.
General safety information
Please contact our company or transportation if the product has
been damaged.
Please read this manual carefully before using the product and pay
attention to the safety information.
Keep the product away fromrain, exposure, severedust,
vibrations,corrosive gas and intense electromagnetic interference.
Do not allow water to enter the product.
There are nouse rserviceable parts inside the product. Do not
disassemble or attempt to repairit.
Recommendations
The MT11 is only allowed to connect with DR N series charge
controller.Please confirm before purchase and installation.
Please do not install MT11 in a situation with strong electromagnetic
interference.
2
2.Overview
The MT series remote meter is an accessory which is compatible
with the DuoRacer series controller. It can monitor the running data
and working status of the controller via the remote meter. The
remote meter can browse the controller’s parameters, set the
battery typeand temperature unit, and clean the generated energy.It
is suitable for RV, Camper, Boat, and so on.
Features：
Automatically identify and display the type,model and relevant
parameter data of controllers.
Real-time display the operational data and working status of the
connected devices indigital,graphics and textual forms by a largescreen multifunction LCD.
Three touch buttons are easy and quick to operate.
No need for external power supply. Charge controller supply the power
for MT11.
It can browse the controller’s parameters, set the battery typeand
temperature unit, and clean the generated energy.
Real-time display of failure information of the connected devices.
Longer communication distance based on RS485.
3
3.Product classification
1) MT11(include the 1.5m communication cable)
Remote meter MT11
1.5m communication cable
CC-RS485-RS485-3.81-4P-150)
(Model:
Base of MT11
2) MT11 (include the 5m communication cable)
Remote meter MT11
5m communication cable
CC-RS485-RS485-3.81-4P-500)
(Model:
Base of MT11
3) MT11 (include the 10m communication cable)
Remote meter MT11
10m communication cable
CC-RS485-RS485-3.81-4P-1000)
(Model:
Base of MT11
4) MT11(Do not include the communication cable)
Remote meter MT11
1.5m communication cable
CC-RS485-RS485-3.81-4P-150)
(Model:
Do not include Base of MT11
NOTE: The user can purchase the product according to the
requirement.
4
4. Installation
4.1 Base of MT11 (Optional accessory)
5
Mechanical parameter
Parameter
Overalldimension
114 x 114 x 44.41mm
Mountingdimension
88.6 x 88.6mm
Terminal
Φ5
4.2 Wall installation steps
Step1:
Locate and drill screw holes based on the Frame Mounting dimension
of the base,and erect the plastic expansion bolts.
Step2:
Use four PA4.2×32 self-tapping screws to fix the Frame.
Step3:
Remove the decorative shell.
Step4:
Use four M4×8 pan head screws to mount MT11 Surface on the Frame.
Step5:
Install the decorative shell.
6
7
4.3 Surface mounting steps
Step1: Locate and drill screw holes based on the installation size of the
surface.
Step2: Remove the decorative shell
Step3:Use four M4×8 cross recessed pan head screws with M4 nuts to
mount MT11 surface onto the panel.
Step4:Install the decorative shell
NOTE:Take full consideration of the plugging/unplugging space of
the communication cable and the length of the cable during
installation to see if they are appropriate.
8
5.Product Features
5.1 Front View
LCD display screen
Man-machine interaction operation interface. Refer to the chapter 5
display and operation
Buttons
The meter buttons include two function buttons and one switch button.
9
Press the button
1.PV array parameters
2.Storage battery parameters
3.Browse the start battery parameters
automatically ( )
Press the button
Browse the PV array parameters
Browse the Storage battery parameters
Browse the start battery parameters
Press the button
and hold on 5s
Temperature unitsBattery type
Press the button
The meter is powered ON
Press the button
and hold on 5s
The meter is powered OFF
5.2 Rear View
10
PIN
Definition
1
DC5V
2
RS-485-B
3
RS-485-A
4
GND
RS485communicationport
It is used to connect the controller which Power the MT11.
Communicationcable’s models
CC-RS485-RS485-3.81-4P-150(Included)
CC-RS485-RS485-3.81-4P-1000(Optional)
CC-RS485-RS485-3.81-4P-2000(Optional)
Pins definition
11
6.Display and operation
Icon
Instruction
Icon
Instruction
BATT1 battery capacity
level①0～12%
BATT2battery capacity
level①0～12%
BATT1battery capacity
level①13%～35%
BATT2battery capacity
level①13%～35%
BATT1battery capacity
level①36%～61%
BATT2battery capacity
level①36%～61%
BATT1battery capacity
level①62%～86%
BATT2battery capacity
level①62%～86%
BATT1battery capacity
level①
87%～100%
BATT2battery capacity
level①
87%～100%
Day PV array
6.1LCD display
12
Night
BATT1 charging icon
Display the parameters
of PV
BATT2charging icon
Display the parameters
of BATT1
BATT1temperature
parameters
Display the parameters
of BATT2
AES signal icon
Setting icon
Battery type icon
Auto global view sign
Minimum voltage icon
Fault Icon
Maximum voltage icon
①Battery power capacity is calculated by the linear relationship between the
disconnect voltage of low voltage and float charging voltage.
6.2 Auto global view mode
Operation:
Step1: Press the button, is appear.
Step2:Press the button, select the .
13
Echo Loop：PV voltage ——PV current ——PV power——Battery power——BATT1
voltage——BATT1 current——Max. BATT1 voltage——Min.BATT1 voltage——BATT1
temperature——BATT1 battery type——BATT2 voltage——BATT2 current——Max.
BATT1 voltage——Min.BATT2 voltage——PV voltage
14
6.3 Temperature units
Operation:
Step1: Press the button under the battery temperature interface.
Step2: Press the button to select the temperature unit.
Step3: Press the button to set successfully.
6.4 Clear the generated energy
Press the and button and hold on 5s to clear the generated energy.
6.5 Battery type
BATT112V Sealed
BATT124V Sealed
BATT112V Gel
BATT124V Gel
BATT112V Flooded
BATT124V Flooded
LiFePO4(4S)
LiFePO4(8S)
Li-NiCoMn (3S)
Li-NiCoMn (6S)
User
1)Operation:
Step1: Press the button and hold 5s under the battery type interface.
Step2: Press the button when the battery type interface is flashing.
Step3: Press the button to confirm the battery type.
2) Battery type
CAUTION:The battery voltage is set as default and not changeable
when selecting the default battery type. Please change to “User” battery type
before adjusting the battery voltage.
CAUTION: Set the voltage of the “User” battery type via PC software only.
Battery type
Voltage parameter
Sealed
Gel
Flooded
User
Over Voltage Disconnect Voltage
16.0V
16.0V
16.0V
9~17V
Charging Limit Voltage
15.0V
15.0V
15.0V
9~17V
Over Voltage Reconnect Voltage
15.0V
15.0V
15.0V
9~17V
Equalize Charging Voltage
14.6V
——
14.8V
9~17V
Boost Charging Voltage
14.4V
14.2V
14.6V
9~17V
Float Charging Voltage
13.8V
13.8V
13.8V
9~17V
Boost Reconnect Charging Voltage
13.2V
13.2V
13.2V
9~17V
Low Voltage Reconnect Voltage
12.6V
12.6V
12.6V
9~17V
Under Voltage Warning Reconnect
Voltage
12.2V
12.2V
12.2V
9~17V
Under Volt. Warning Voltage
12.0V
12.0V
12.0V
9~17V
Low Volt. Disconnect Voltage
11.1V
11.1V
11.1V
9~17V
Discharging LimitVoltage
10.6V
10.6V
10.6V
9~17V
Equalize Duration (min.)
120
——
120
0~180
Boost Duration (min.)
120
120
120
10~180
1) Lead-acid Battery Control Voltage Parameters
The parameters are in the 12V system at 25 ºC. Please double the
values in the 24V system.
NOTE:
1) When the battery type is sealed, gel, flooded, the adjusting range of
equalizing duration is 0 to180min, and boost duration is 10 to180min.
2) The following rules must be observed when modifying the value of the
Battery type
Voltage parameter
LiFePO
4
(4S)
Li-NiCoMn
(3S)
User
Over Voltage Disconnect Voltage
15.6V
13.5V
9～17V
Charging Limit Voltage
14.6V
12.6V
9～17V
Over Voltage Reconnect Voltage
14.5V
12.5V
9～17V
Equalize Charging Voltage
14.5V
12.5V
9～17V
Boost Charging Voltage
14.5V
12.5V
9～17V
Float Charging Voltage
13.8V
12.2V
9～17V
Boost Reconnect Charging
13.2V
12.1V
9～17V
parameter in user battery type(factory default value is the same as sealed
type):
A. Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize
Charging Voltage ≥ Boost Charging Voltage ≥ Float Charging Voltage >
Boost Reconnect Charging Voltage.
B. Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage
C. Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥
Discharging Limit Voltage.
D. Under Voltage Warning Reconnect Voltage > Under Voltage Warning
Voltage ≥ Discharging Limit Voltage.
Boost Reconnect Charging voltage > Low Voltage Disconnect Voltage.
2)Lithium Battery Control Voltage Parameters
The parameters are in the 12V system at 25 ºC; please double the
values in the 24V system.
Voltage
Low Voltage Reconnect Voltage
12.4V
10.5V
9～17V
Under Voltage Warning Reconnect
Voltage
12.5V
11.0V
9～17V
Under Volt. Warning Voltage
12.0V
10.5V
9～17V
Low Volt. Disconnect Voltage
11.0V
9.3V
9～17V
Discharging LimitVoltage
10.8V
9.3V
9～17V
The following rules must be observed when modifying the parameter values
in User for the lithium battery.
A.Over Voltage Disconnect Voltage>Over charging protection
voltage(Protection Circuit Modules(BMS))+0.2V※;
B.Over Voltage Disconnect Voltage>Over Voltage Reconnect Voltage＝
Charging Limit Voltage ≥ Equalize Charging Voltage＝Boost Charging
Voltage ≥ Float Charging Voltage>Boost Reconnect Charging Voltage;
C.Low Voltage Reconnect Voltage>Low Voltage Disconnect Voltage ≥
Discharging Limit Voltage;
D.Under Voltage Warning Reconnect Voltage>Under Voltage Warning
Voltage≥ Discharging Limit Voltage;
E.Boost Reconnect Charging voltage> Low Voltage Reconnect Voltage;
F.Low Voltage Disconnect Voltage ≥ Over-discharging protection voltage
(BMS)+0.2V.
WARNING:The voltage parameters of the lithium battery can be set,
but you must refer to the voltage parameters of lithium battery BMS.
WARNING: The required accuracy of BMS shall be at least 0.2V. If
Fault
Fault
indicator
Charge
indicator
LCD
Instruction
BATT2
overvoltage
Red
Fast
flashing
——
Battery level
shows full, battery
frame blink, fault
icon blink.
BATT2
over-
discharged
——
——
Battery level
shows empty,
battery frame blink,
fault icon blink.
BATT2 over
temperature
Red
Fast
flashing
——
Battery level
shows current
capacity, battery
frame blink, fault
icon blink, the
temperature icon
blink.
BATT2
system
voltage
error
①
Red
Fast
flashing
Green
Fast
flashing
Battery level
shows empty,
battery frame blink.
the deviation is higher than 0.2V, the manufacturer will assume no liability for
any system malfunction caused by this.
6.6 Fault indication
① No alarm for limited voltage fault when using Lithium batteries.
7.Technical Specifications
Model
MT11
Apply to model
DRN series
Self-consumption(Power on)
13mA/5Vdc
Self-consumption(Power off)
4mA
Communication way
RS485
Communication port
3.81-4P
RS485 cable
CC-RS485-RS485-3.81-4P-150(1.5m)
CC-RS485-RS485-3.81-4P-500(5m)
CC-RS485-RS485-3.81-4P-1000(10m)
Environment temperature
-20℃～+70℃
Storage temperature range
-20℃～+70℃
Enclosure
IP20
Dimension
98.4×98.4mm
Base cover dimension
114×114mm
Weight
0.11kg
Any changes without prior notice! Version number:1.1
BEIJING EPSOLAR TECHNOLOGY CO., LTD.
Tel: +86-10-82894896 / 82894112
Fax: +86-10-82894882
E-mail：info@epsolarpv.com
Website: www.epever.com
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