BLUE JAY BJ-195-3PS DC Energy Meter User Manual

BLUE JAY BJ-195-3PS DC Energy Meter

Product Information

Website: www.cqbluejay.com
Address: 1802, Building 2, No.88, Jianxin East Road, Chongqing, 400020, China
Email: tech@cqbluejay.com

Product Usage Instructions

1. Before using the BJ-195-3PS DC Energy Meter, it is important to read the user manual carefully and fully understand its implications.
2. Ensure that you follow the correct guidance of operations as described in the user manual for optimal usage of the DC Energy Meter.
3. The DC Energy Meter can accurately measure 1 DC voltage and 1 DC current (with direction) with the use of an external shunt.
4. It can measure power, total electricity, each single electricity, and other electrical parameters.
5. The device is equipped with an RS485 interface and supports the MODBUS-RTU communication protocol for data upload and equipment status monitoring.
6. The DC Energy Meter is suitable for a wide range of applications including electric power, communication, railway, transportation, environmental protection, petrochemical, and steel industries to monitor the current and power consumption of DC equipment.
7. It has powerful data acquisition and processing functions, allowing for the viewing of various electrical parameters and the operating status of a circuit locally.
8. The DC Energy Meter has high security and reliability with various anti-interference measures in place.
9. It complies with different levels of immunity requirements for electrostatic discharge, electrical fast transient burst, high-voltage shock, and surge anti-interference.
10. The panel has an IP54 protection level, while the shell has an IP20 protection level.
11. The DC Energy Meter is designed for easy installation on a standard 35mm rail.
12. The system wiring mode is single-phase.
13. The dedicated LCD module provides real-time display of multiple information and operates in a user-friendly manner.

Read me
When you use BJ-195-3PS DC Energy Meter, be sure to read this user manual carefully, and be able to fully understand the implications, the correct guidance of operations in accordance with user manual, which will help you make better use of BJ-195-3PS DC Energy Meter, and help to solve the various problems at the scene.

1. Always keep safe distance between the instrument and operator.
2. Measurements must not be taken when thunderstorms are nearby.
3. Do not operate the instrument or accessories in explosive atmospheres.
4. Do not open the instrument without permission, this will affect the warranty of the product. The factory is not responsible for self-disassembly.
5. When the instrument is transported, it should avoid rain erosion and prevent collision and falling.
6. When storing and keeping the instrument, attention should be paid to the ambient temperature and humidity, and it should be protected from dust, moisture, shock, acid, alkali and corrosive gas.

SUMMARIZE

BJ-195-3PS DC Energy Meter is a combined DC power measurement terminal, which is a highly integrated product for DC parameter measurement applications. It can accurately measure 1 DC voltage and 1 DC current (with direction) with an external shunt, power, total electricity, each single-way electricity and other electrical parameters, and can be equipped with a switch output. The device has an RS485 interface, supports the MODBUS-RTU communication protocol, and can upload the data collected by the measurement and the status of the equipment. The device can be widely used in electric power, communication, railway, transportation, environmental protection, petrochemical, steel and other industries to monitor the current and power consumption of DC equipment.

FEATURES

• DC multi-function meter has powerful data acquisition and processing functions.
• Various electrical parameters and operating status of a circuit can be viewed locally.
• It can view or set operating parameters.
• High security, good reliability, using a variety of anti-interference measures.
• Electrostatic discharge immunity complies with level 3; electrical fast transient burst immunity complies with level 4.
• High-voltage shock immunity meets level 4; surge anti-interference meets level 3.
• The protection level of the panel meets IP54, and the protection level of the shell meets IP20.
• The external dimension of the DC multi-function meter is suitable for standard 35mm rail installation, small in size and easy to install.
• The system wiring mode is single-phase system.
• The dedicated LCD module can display multiple information in real time, and the operation mode is humanized.

APPLICATIONS

• Power System Monitoring and Management
• Real-time grasp of power usage and load distribution
• Industrial Automation Control
• Electric Vehicle Charging Management
• The Sun can generate system
• Ensure stable operation of industrial equipment

TECHNICAL PARAMETERS

separately
Overload| Measurement: 1.2 times Instantaneous: 10 times/1s
Impedance| <100mΩ
Accuracy| 0.5%FS
Power| Accuracy: 0.5%FS
Electric energy| Active energy level 1
Display| LCD with white backlit
Power supply| Work scope| AC/DC85V~265V
Power consumption| ≤4VA
Output| Digital interface| RS-485,MODBUS-RTU
Pulse output| Optional 1 channel active energy pulse output
Environment| Working environment| -25~55°C Altitude ≤2000m, 98%RH, no

condensation, no corrosive gas

Storage environment| -30~75°C
Safety| Pressure resistance| Input and Power>2kV; Input and Output>2kV; Power and Output>2kV
Insulation| Input, output, power supply > 5MΩ to the chassis

INSTALLATION AND START-UP

The manual you hold contains information and warnings that the user should respect in order to guarantee a proper operation of all the instrument functions and keep it in safety conditions. The instrument must not be powered on and used until its definitive assembly is on the cabinet’s door.

If the instrument is not used as manufacturer’s specifications, the protection of the instrument will be damaged.
When any protection failure is suspected to exist (for example, it presents external visible damages), the instrument must be immediately powered off. In this case contact a qualified service representative.

Installation

• Mounting
  Instrument is to be mounted on 35mm Din-rail. Keep all connections into the cabinet. Please note that with the instrument powered on, the terminals could be dangerous to touch and cover opening actions or elements removal may allow accessing dangerous parts. Therefore, the instrument must not be used until this is completely installed.

• Dimension:

Connection Terminal

• Upper connection terminal
• Lower connection terminal

Note: The terminal pin definition may change depending on customer order; please refer to the label on the meter!

Typical Wiring

Notes:

1. The wire cross-sectional area of the access device should be selected according to the measuring range and calculated according to the actual load.
2. The communication line must use a shielded twisted pair.
3. The RS485+ and RS485- of the communication line cannot be reversed.
4. When the communication connection adopts the linear connection mode, a line matching resistance of 100-120 ohms should be connected between the RS485+ and RS485- terminals at the start and end of the communication cable.
5. When the baud rate is 9600, the cable length is <1200 meters.

PROGRAMMING OPERATION

Screen description

• Panel & Screen introduction

1. 7 digital show energy value
2. ymbol for SUM energy record value
3. 3.- Symbol for multi-tariff function
4. Imp for energy consumption, Export for energy generate
5. Symbol for Maximum demand
6. Symbol for average value
7. PF=power factor; Hz=Frequency
8. Pulse output channel 1 and channel 2
9. Symbol for communication
10. Symbol for time
11. Symbol for screen locked

Button description

• Short press is the up key, turning the page to display the measurement data, displaying voltage, current, power, electric energy and other measurement data.

• Short press is the down key, the function is the same as the up key, but the page turning direction is opposite;
  Long press is the menu key to enter the programming menu, and it is also a function key to exit the menu step by step.

• Short press is the confirmation key to confirm and save the entered information or displayed settings.

Indicator light description

Screen pages’ description

Explanation of the flowchart part

means that the switching time between screens is 1 second.
LCd,t| (Default 0005)|  | LCD backlight bright time setting
BUS| Addr.| (Default 0001)| 1~247| Set the communication address of the instrument
BAUD| 1200,2400,4800,9600, 19.20,(Default19.20)|  | Set the communication speed (baud rate)
DATA| n.8.1, n.8.2,o.8.1,e.8.1(Defau lt n.8.1)|  | Set communication data format
DO- 1 (optional)| TYPE| r.n 、ALr、OFF (Default ALr)|  | Alarm mode selection r.n, ALr, and oFF are the three working modes of the relay, which are remote control mode, alarm mode, off
DELY| (Default 0010)|  | The setting value under the DELY menu is 0000, indicating the level mode. When it is not zero, it is the pulse mode, and the value inside is the pulse width.
PArA| I-H、P-H……… U-H|  | Select the corresponding parameter, there are two
|  |  |  | forms of X-H and X-L, X- H means high alarm; X-L means low alarm; For example: I-H indicates that the current measurement value exceeds the alarm point and the relay operates;
---|---|---|---|---
VALUE| (Default 5500)）|  | Set the corresponding alarm value, the alarm value is set according to the actual value, the unit of voltage is V; the unit of current is A; the unit of active power is 0.1kW
HYS| (Default 0050)|  | Set the corresponding hysteresis

Main menu
In the case of measuring data, long press and hold the “Down” key, and the prompt of “0000” (that is, “password”) will appear, enter the user-level password (default is 0001), and press the Confirmation key to enter the programming state. The instrument provides three types of input setting menu items: system factory commissioning (SYS), input (-IN-), and communication (BUS). Adopt LCD display layered menu structure management.

Description of menu characters

PULSE OUTPUT (Optional)

BJ-195-3PS provides 1* pulse output for the active energy.
The host / PLC / DI module can cumulative the data of both the active and reactive power energy sent by the pulse from opt coupler relay.

1. Electrical specification: voltage VCC ≤ 48V, Iz ≤ 50mA.
2. Pulse constant: can be set according to customer needs, the default is set according to the secondary value of the instrument 10000imp/Wh: The high-level duration of the electric energy pulse is 80ms.
   For example: the instrument defines the first channel of positive active energy pulse output, the cumulative output pulse is 5000, the rated voltage of the first channel is 500V, and the rated current is 200A. The actual electric energy measured is: 5002005000/10000Wh=50000Wh=50kWh.

COMMUNICATION INTERFACE

Connection for RS485 BUS
The product provides serial asynchronous half-duplex RS485 communication interface, adopts MODBUS-RTU protocol, and can also be changed to DL/T645-2007 communication protocol. Various data information can be transmitted on the communication line. For the specific register address, please refer to our company Communication instructions provided.

Notes:

• For communication with the master unit, user can choose RS-485 to RS-232 converter or RS485 to USB adapter to use.
• For expand the number of devices in the communication network, a signal repeater can be used. -. RS485 PIN number is 58,59,60
• Due to product modifications or special requirements, the interface pin place may be change. For details, please refer to product label on the rear side

MODBUS © Protocol

• Modbus RTU Frame Format:**
  Address code| 1 BYTE| _Slave device address 1-247_
  ---|---|---
  Function code| 1 BYTE| Indicates the function codes like read coils / inputs
  Data code| 4 BYTE| Starting address, high byte Starting address, low byte Number of registers, high byte Number of registers, low byte
  Error Check code| 2 BYTE| _Cyclical Redundancy Check ( CRC )**_
• MODBUS FUNCTIONS:**
  Code| Meaning| Description
  ---|---|---
  FUNCTION 01| Read Coil Status| Only valid when equipped DO port
  FUNCTION 02| Read Input Status| Only valid when equipped DI port
  FUNCTION 03| Reading of n Words| This function permits to read all the electrical parameters
  FUNCTION 05| Force Single coil| When DO in remote control mode can work
  FUNCTION 06| Preset Single register| Disable in default
  ** If need valid this code, please contact Blue Jay Sales Team before your order!

Note: All communication data is 32 bits, occupying 2 words (4 bytes), float low bit first, high bit next.

Register Map

1. Basic power data—Primary Side**
   Register| Data| Byte mode| Instruction**
   ---|---|---|---
   0x00| U| float| 2| Voltage, Unit: V
   0x02| I| float| 2| Current of channel 1 , unit A
   0x04| P| float| 2| Power of channel 1, unit W
   0x06| Epz| float| 2| The combined active energy of channel , unit KWh
   0x08| EP+| float| 2| The positive active energy of channel, unit KWh
   0x0a| EP-| float| 2| Negative active energy of channel , unit KWh
   0x200| DO| int| 1| Remote control relay output status Bit0 1 output status

Notes:

1. The data can be read out depends on your multi-function meter model, please refer to the corresponding product manual before build your software.
2. Some software has different definitions of the start bit of register address, there will be offset, please add 1 for the right address. To get more info, please contact technical support.

SAFETY CONSIDERATIONS

All installation specification described at the previous chapters named: INSTALLATION AND STARTUP, INSTALLATION MODES and SPECIFICATIONS.
Please note that with the instrument powered on, the terminals could be dangerous to touching and cover opening actions or elements removal may allow accessing dangerous parts. This instrument is factory-shipped at proper operation condition.

• The device must have a professional installation and maintenance.
• Any operation of the device, you must cut off the input signal and power;

MAINTENANCE

The BJ-195-3PS DC Energy Meter does not require any special maintenance. No adjustment, maintenance or repairing action should be done when the instrument is open and powered on, should those actions are essential, high-qualified operators must perform them. Before any adjustment, replacement, maintenance or repairing operation is carried out, the instrument must be disconnected from any power supply source. When any protection failure is suspected to exist, the instrument must be immediately put out of service. The instrument’s design allows a quick replacement in case of any failure.

TECHNICAL SERVICE

For any inquiry about the instrument performance or whether any failure happens, contact to Blue Jay’s technical service. Blue Jay – After-sales service
1802, Building 2, No.88, Jianxin East Road,
Chongqing,400020, China
Tel – + 0086 023 67628702
E-mail: tech@cqbluejay.com

Tel: +0086-023-67628702
www.cqbluejay.com
Add: 1802,Building 2,No.88,Jianxin East Road,Chongqing,400020,China
Email:tech@cqbluejay.com

References

• Blue Jay - Industrial Electric Automation Manufacturer - Power & Energy Meters, Automatic protection relay etc.

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