EP Solar MT50 User manual

INSTRUCTION MANUAL
Remote Meter: MT50
Thank you very much for selecting our product!
This manual offers important information and suggestions with respect to
installation, use and troubleshooting, etc. Please read this manual carefully before
using the product.

Remote Meter
MT50
Remote meter (Model MT50) is available to connect with solar
controller LSxxxxB(P), VSxxxxBN and TracerxxxxBN(P).

Contents
1 Important Safety Instructions ...............................................................1
2 General Information ............................................................................2
2.1 Features..............................................................................................2
2.2 Mainfunctions...................................................................................3
2.3 Recommendations............................................................................3
3Installation...........................................................................................4
4 Product Features ................................................................................8
5 Operation.........................................................................................12
5.1 Buttons...............................................................................................12
5.2 Mainmenu .........................................................................................13
5.3 Real-timemonitoring ......................................................................14
5.4 Deviceinformation...........................................................................16
5.5 Test operation..................................................................................16
5.6 Control parameter...........................................................................17
5.7 Loadsetting.....................................................................................21
5.8 Device parameter...........................................................................24
5.9 Devicepassword.............................................................................25
5.10 Factory reset ...................................................................................25
5.11 Failureinformation..........................................................................26
5.12 Meter parameter.............................................................................27
6 Technical Specifications....................................................................28

1
1 Important Safety Instructions
SAVE THESE INSTRUCTIONS:
This manual contains important safety, installation and operating
instructions for the Remote Meter.
General safety information
■Please inspect the MT50 thoroughly after it is delivered. If any damage is
seen, please notify the shipping company or our company immediately. A
photo of the damage may be helpful.
■Read all instructions and cautions in the manual before starting the
installation.
■Keep the MT50 away from rain, exposure, severe dust, vibrations, corrosive
gas and intense electromagnetic interference.
■Do not allow water to enter remote meter.
■There are no user serviceable parts inside the controller. Do not
disassemble or attempt to repair it.

2
2 General Information
2.1 Features
The new-generation remote display unit MT50 for LSxxxxB(P), VSxxxxBN
and TracerxxxxBN(P) controllers is an associated display device which
supports both the latest communication protocol and the voltage technology
standard of solar controllers. The products have many excellent functions:
■Automatic identify and display the type, model and relevant parameter
data of controllers;
■Real-time display the operational data and working status of the connection
devices in digital, graphic and textual forms by a large-screen multifunction
LCD;
■Direct, convenient and rapid operation of six navigation function keys;
■Both data and power flowing on the same lead, no need for external power;
■Real-time data monitoring and remote load switchover of the controllers,
and data browse and modification of device parameters, charge control
parameters and load control parameters;
■Real-time display and acoustic alarm of failure information of the
connection devices;
■Longer communication distance based on RS485.

3
2.2 Main functions
Functions like the real-time monitoring of the operational data and working
status of a controller, the browse and modification of charge/discharge
control parameters, the setting of device parameters and load control
parameters and the restoration of factory defaults, based on LCD display
and functional key operation.
2.3 Recommendations
■Please confirm that MT50 is only allowed to connect with our
LSxxxxB(P), VSxxxxBN and TracerxxxxBN(P) series controllers before
purchase;
■Please do not install MT50 in a situation with strong electromagnetic
interference.

4
3 Installation
Frame Mount Dimensions(
mm)

5
Mechanical
parameter
Parameter
Overall
dimension
114 x 114 x 48.2mm
Mounting
dimension
84x 84mm
Terminal
Φ5
Wall installation steps：
Step1: Locate and drill screw holes
based on the Frame Mounting dimension
of the base, and erect the plastic
expansion bolts;
Step 2: Use four ST4.2×32 self-tapping
screws to fix the Frame;
Frame Mounting

6
Step 3: Use four M4×8 pan head screws to mount MT50 Surface on the
Frame;
Step 4: Mount the four associated screw plugs into the screw holes.
Surface Mounting

7
Steps of surface mounting:
Step 1: Locate and drill screw holes based on the installation size of the
Surface;
Step 2: Use four M4×8 cross recessed pan head screws with M4 nuts to
mount MT50 Surface onto the panel;
Step 3: Mount the four associated white screw plugs into the screw holes.
Surface mounting
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
4 Product Features

9
RS485 communication and power interface
Rear View
Failure indicator
Failure indicator flashes in case of failure of the connection devices.
For failure information please check the Controller Manual.

10
Alarm
Fault audible alarm, could be activated or deactivated.
Communicationindicator
Indicate communication status when MT50 is connected with the controller.
Display screen
Man-machine interaction operation interface.
Buttons
The Meter buttons includes four navigation buttons and two operational
buttons. See the specific directions in the Operational Manual.
RJ45 communication and power interfaces
Communication and power supply cable interfaces, used for communication
connection with controllers.
Note: Please use the communication plug which is marked with “MT”
to connect MT50
Monitoring screen

11
Day and night icons
-Night，- Day: The threshold voltage is 1V. Higher than 1V is daytime.
Charge current icon
The icon is dynamically if there is charge current.
Battery icon
The battery capacity is dynamically displayed
Note: When the battery is in over discharge status, the icon displayed
is“ ”.
Battery status icons
-Normal voltage, -Under voltage, -Over discharge.
Load current icon
The icon is dynamically if there is discharge current.
Load status icon
- Load On, - Load Off.
Note: In Manual Mode, pressing the "OK" button will switch the load status
between "ON" and "OFF"

12
5 Operation
5.1 Buttons
The buttons are respectively (from left to right) “ESC”, “Left”, “Up”, “Down”,
“Right” and “OK “buttons, the operation is described in the schematic
operation diagram below:
Schematic operation diagram

13
The default entry page is the browse mode. Pressing button and inputting
the correct password to enter the modification mode; and buttons
could be used to move the cursor, and buttons could be used to
modify the parameter values when the cursor is located at the current place;
and buttons could be finally used to respectively confirm and cancel
the modification of the control parameters.
5.2 Main menu
Enter the Main Menu by pressing "Esc". “Up” and “Down” buttons are
respectively used to move the cursor to select the menu items, “OK” and
“ESC” buttons are respectively used to enter or exit the corresponding
pages of the menu items.
1. Monitoring
2. Device Info.
3. Test Operation
4. Control Para.
5. Load Set
6. Device Para
7. Device PSW.
8. Factory Reset
9. Failure Info.
10. Meter Para.

14
5.3 Real-time monitoring
There are 14 pages under real-time monitoring. Please check it as below:
17.5V 13.8V 13.8V
15.2A 5.2A 10.0A
LS****B
Jan-01-2013
02:34:33
Char. Energy
Day: 0.00kwh
Mon: 0.00kwh
Total: 0.00kwh
DisCh. Energy
Day: 0.00kwh
Mon: 0.00kwh
Total: 0.00kwh
Battery
Charge: NoCharge
Energe: Normal
Fault: No
Battery
Vol: 0.0V
Cur: 0.0A
Battery
Temp.: 22.4℃
Max. Vol: 12.7V
Min. Vol: 12.7V

15
PV
Sta.: DisConnect
Fault: No
Char.: PWM/MPPT
Load
Sta.: OFF
Fault: No
Load Mode
Information
Load Mode
Information
Load
Vol: 0.0v
Cur: 0.0A
Power: 0.0W
PV
Vol: 0.0V
Cur: 0.0A
Power: 0.0W
Controller
Temp.: 25.0℃
Sta.: Normal
Operational tips:
Move between rows by pressing "Up" or "Down" buttons. Move along a row by
pressing "Right" or "Left" buttons.

16
5.4 Device information
The product model, parameters and SN code of the controllers are displayed
below:
Operational tips: and buttons are respectively used to turn the
browse page upward and downward.
5.5 Test operation
Load switch test operation is conducted on the connection solar controller
to see if the load output is normal. The test operation does not affect the
working settings under actual load, which means that the solar controller will
exit from the test mode when exiting the operational interface of the test.
Test Operation
LS****B: OFF
Operational tips: Enter the page and input correct password; use and
buttons to modify the On/Off status values, while use and buttons
respectively to confirm and cancel the test operation.
LS****B
Rate.Vol: 12V
Char.Cur: 10.0A
Disc.Cur: 2.6A
LS****B
SN:0002201301200045