EPEVER MT11 Remote Meter User Manual
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 from rain, exposure, severe dust, vibrations, corrosive gas, and intense electromagnetic interference.
- Do not allow water to enter the product.
- There are no serviceable parts inside the product. Do not disassemble or attempt to repair it.
Recommendations
- The MT11 is only allowed to connect with the DR-N series charge controller. Please confirm before purchase and installation.
- Please do not install MT11 in a situation with strong electromagnetic interference.
Overview
The MT11 remote meter, matching with the DuoRacer series controllers, can monitor the controller’s running data and working status.
Features:
- Easy to install and operate
- Real-time display of fault alarms
- Locally readable of real-time parameters
- Powered by the controller directly
Product Classification
- MT11(include the 1.5m communication cable)
- Remote meter MT11
- 1.5m communication cable (Model: CC-RS485-RS485-3.81-4P-150)
- Base of MT11
- MT11 (include the 5m communication cable)
- Remote meter MT11
- 5m communication cable (Model: CC-RS485-RS485-3.81-4P-500)
- Base of MT11
- MT11 (include the 10m communication cable)
- Remote meter MT11
- 10m communication cable (Model: CC-RS485-RS485-3.81-4P-1000)
- Base of MT11
- MT11(Do not include the communication cable)
- Remote meter MT11
- 1.5m communication cable (Model: CC-RS485-RS485-3.81-4P-150)
- Do not include Base of MT11
NOTE: The customers can purchase the product according to the requirement.
Installation
Base of MT11 (Optional accessory)
| Mechanical parameter | Parameter |
| Dimension | 114mm x 114mm x 44.41mm |
| Mounting size | 88.6mm x 88.6mm |
| Mounting hole size | Φ5mm |
Wall Installation
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 the MT11 surface on the Frame.
Step5: Install the decorative shell.
Surface Installation
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 the 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 cable length during installation.
Product Features
Front View
- LCD screen
Man-machine interaction operation interface. Refer to chapter 6, Display and operation. - Buttons
The meter buttons include two function buttons and one switch button.
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Press the button |
|
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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 | |
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Press the button | The meter is powered ON |
| Press the button and hold on 5s | The meter is powered OFF |
Rear View
- RS485communicationport
It is used to connect the controller to supply power to the MT11. - Communication cable’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
PIN Definition 1 DC5V 2 RS-485-B 3 RS-485-A 4 GND
Display and operation
LCD
| Icon | Instruction | Icon | Instruction |
 |
BATT1 battery capacity level①0～12% |  |
BATT2battery capacity level①0～12% |
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BATT1battery capacity level①13%～35% |  |
BATT2battery capacity level①13%～35% |
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BATT1battery capacity level①36%～61% |  |
BATT2battery capacity level①36%～61% |
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BATT1battery capacity level①62%～86% |  |
BATT2battery capacity level①62%～86% |
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BATT1battery capacity level① 87%～100% |  |
BATT2battery capacity level① 87%～100% |
 |
Day |  |
PV array |
 |
Night |  |
BATT1 charging icon |
 |
Display the parameters of PV |  |
BATT2charging icon |
 |
Display the parameters of BATT1 |  |
BATT1temperature parameters |
 |
Display the parameters of BATT2 | AES | AES signal icon |
 |
Setting icon | Batt. Type | Battery type icon |
 |
Auto global view sign | Min | Minimum voltage icon |
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Fault Icon | Max. | Maximum voltage icon |
- (①) Battery power capacity is calculated by the linear relationship between the disconnect voltage of low voltage and float charging voltage.
Auto Global-View Mode
Operation:
Step1: Press the button, Auto is appear.
Step2: Press the button and select the .
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
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
Clear the Generated Energy
Press the and button and hold on 5s to clear the generated energy.
Battery Type
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.
Battery type
| SEL 1 | BATT112V Sealed | SEL 2 | BATT124V Sealed |
| GEL 1 | BATT112V Gel | GEL 2 | BATT124V Gel |
| FLD 1 | BATT112V Flooded | FLD2 | BATT124V Flooded |
| LI F4 | LiFePO4(4S) | L1 F8 | LiFePO4(8S) |
| L1 C3 | Li-NiCoMn (3S) | L1 C6 | Li-NiCoMn (6S) |
| USE | User | ||
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.
Lead-acid Battery Control Voltage Parameters
The parameters are in the 12V system at 25 ºC. Please double the values in the 24V system.
| Battery type | Sealed | Gel | Flooded | User |
| Voltage parameter | ||||
| 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 Voltage Reconnect Voltage | 13.2V | 13.2V | 13.2V | 9~17V |
| Low Voltage Reconnect Voltage | 12.6V | 12.6V | 12.6V | 9~17V |
| Under Voltage Reconnect Voltage | 12.2V | 12.2V | 12.2V | 9~17V |
| Under Voltage Warning Voltage | 12.0V | 12.0V | 12.0V | 9~17V |
| Low Voltage Disconnect Voltage | 11.1V | 11.1V | 11.1V | 9~17V |
| Discharge Voltage Limit Voltage | 10.6V | 10.6V | 10.6V | 9~17V |
| Equalize Duration (minute) | 120 | —— | 120 | 0~180 |
| Boost Duration (minute) | 120 | 120 | 120 | 10~180 |
NOTE:
- When the battery type is sealed, gel, flooded, the adjusting range of equalizing duration is 0 to180 minutes, and boost duration is 10 to180 minutes.
- The following rules must be observed when modifying the value of the parameter in user battery type(factory default value is the same as sealed type):
- Over Voltage Disconnect Voltage > Charge Voltage Limit Voltage ≥ Equalize Charging Voltage ≥ Boost Charging Voltage ≥ Float Charging Voltage > Boost Voltage Reconnect Voltage
- Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage
- Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥ Discharge Voltage Limit Voltage
- Under Voltage Reconnect Voltage > Under Voltage Warning Voltage ≥ Discharge Voltage Limit Voltage
- Boost Voltage Reconnect Voltage > Low Voltage Disconnect Voltage
Lithium Battery Control Voltage Parameters
The parameters are in the 12V system at 25 ºC; please double the values in the 24V system.
| Battery type | LiFePO4 (4S) | Li-NiCoMn (3S) | User |
| Voltage parameter | |||
| Over Voltage Disconnect Voltage | 15.6V | 13.5V | 9～17V |
| Charge Voltage 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 Voltage Reconnect Voltage | 13.2V | 12.1V | 9～17V |
| Low Voltage Reconnect Voltage | 12.4V | 10.5V | 9～17V |
| Under Voltage Reconnect Voltage | 12.5V | 11.0V | 9～17V |
| Under Voltage Warning Voltage | 12.0V | 10.5V | 9～17V |
| Low Voltage Disconnect Voltage | 11.0V | 9.3V | 9～17V |
| Discharge Voltage Limit Voltage | 10.8V | 9.3V | 9～17V |
The following rules must be observed when modifying the parameter values in User for the lithium battery.
- Over Voltage Disconnect Voltage > Over Charge Protection Voltage (Protection Circuit Modules(BMS))+0.2V
- Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage ＝ Charge Voltage Limit Voltage ≥ Equalize Charging Voltage ＝ Boost Charging Voltage ≥ Float Charging Voltage > Boost Voltage Reconnect Voltage
- Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥ Discharge Voltage Limit Voltage
- Under Voltage Reconnect Voltage > Under Voltage Warning Voltage ≥ Discharge Voltage Limit Voltage
- Boost Voltage Reconnect Voltage > Low Voltage Reconnect Voltage
- Low Voltage Disconnect Voltage ≥ Over Discharge Protection Voltage (BMS)+0.2V)
WARNING: The lithium battery voltage parameters must be set according to the voltage parameters of the lithium battery BMS.
WARNING: The required accuracy of BMS shall be at least 0.2V. If the deviation is higher than 0.2V, the manufacturer will assume no liability for any system malfunction caused by this.
Fault Indication
| Fault | LCD | Instruction |
| BATT2 overvoltage |  |
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 |  |
Battery level shows current capacity, battery frame blink, fault icon blink, the temperature icon blink, the temperature value blink, the temperature unit blink. |
| BATT2 system voltage error① |  |
Battery level shows empty, battery frame blink. |
- (①) No alarm for limited voltage fault when using Lithium batteries.
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 |
Warranty
Before maintenance, check the product by the user manual or the after-sales personnel to determine the problem. If it is necessary to return to the factory for maintenance, please express the product to our company, prepay the freight and provide the ticket related to the purchase.
The returned product must be marked with the model, working environment, and fault description for the quick repair guarantee. This information is important to resolve the problems quickly.
We are not responsible for damage to the product caused by improper usage or failure to follow this user manual!
The maintenance is carried out regarding the above process and will incur a certain maintenance cost.
HUIZHOU EPEVER TECHNOLOGY CO., LTD.
Beijing Tel: +86-10-82894896/82894112
Huizhou Tel: +86-752-3889706
E-mail: info@epever.com
Website: www.epever.com
Documents / Resources
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EPEVER MT11 Remote Meter [pdf] User Manual MT11, Remote Meter, MT11 Remote Meter, Meter |
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EPEVER MT11 Remote Meter [pdf] User Manual MT11 Remote Meter, MT11, Remote Meter, Meter |
