BLUE JAY BJ-194Z User manual

User Manual

Tel: +0086-023-67628702 Email:tech@cqbluejay.com

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Add: 1802,Building 2,No.88,Jianxin East Road,Chongqing,400020,China

BJ-194Z

Multi-function Power Meter

User Manual

Version：1.5

Revision 2022-8

User Manual

Tel: +0086-023-67628702 Email:tech@cqbluejay.com

www.cqbluejay.com

Add: 1802,Building 2,No.88,Jianxin East Road,Chongqing,400020,China - 1 -

Read me

When you use BJ-194… series multi-function 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-194…

series multi-function meter, and help to solve the various problems at the scene.

1. Before the meter turning on the power supply, be sure that the power supply within the provisions

of the instrument;

2. When installation, the current input terminal must non-open, voltage input terminals must Non-

short circuit;

3. Communication terminal (RS232/RS485 or Ethernet) is strictly prohibited to impose on high

pressure;

4. Be sure the instrument wiring consistent with the internal system settings;

5. When communicating with the PC, instrument communication parameters must be consistent

with the PC.

●Please read this user manual carefully

●Please save this document

                                        User Manual
Tel: +0086-023-67628702                                                                                                          Email:tech@cqbluejay.com 
www.cqbluejay.com 
Add: 1802,Building 2,No.88,Jianxin East Road,Chongqing,400020,China                                                             - 2 -
Directory 
- SUMMARIZE ............................................................................................................................................ - 3 -
- FEATURES................................................................................................................................................. - 4 -
1. - ELECTRICITY METERING .........................................................................................................................- 4 -
2. – SPECIFICATIONS......................................................................................................................................- 5 -
- INSTALLATION AND START-UP .......................................................................................................... - 7 -
1.- INSTALLATION..........................................................................................................................................- 7 -
2. - CONNECTION TERMINAL.........................................................................................................................- 9 -
3. – TYPICAL WIRING (3P4W).....................................................................................................................- 10 -
- SCREEN DISPLAY ..................................................................................................................................- 11 - 
1.- FULL SYMBOL IN DISPLAY SCREEN ........................................................................................................- 11 -
2.- INTRODUCTION OF SCREEN PAGES.........................................................................................................- 12 -
- OPERATION MODE .............................................................................................................................. - 13 -
- SETUP PROCEDURE............................................................................................................................. - 14 -
1.- ENTER SETUP MENU ..............................................................................................................................- 14 -
2. - INPUT SIGNAL SETUP ............................................................................................................................- 15 -
3. - COMMUNICATION PORT SETUP..............................................................................................................- 16 -
4. - DIGITAL OUTPUT SETUP ........................................................................................................................- 17 -
5. - SYSTEM SETTING ..................................................................................................................................- 20 -
- PULSE OUTPUT ..................................................................................................................................... - 21 -
- COMMUNICATION INTERFACE ....................................................................................................... - 22 -
1.- CONNECTION FOR RS485 BUS ..............................................................................................................- 22 -
2.- MODBUS © PROTOCOL........................................................................................................................- 23 -
3.- REGISTER MAP ......................................................................................................................................- 24 -
3.1.- Basic power data—Primary Side.................................................................................................. - 24 -
3.2.- Basic power data—Secondary Side .............................................................................................. - 25 -
3.3.- Meter status data .......................................................................................................................... - 25 -
4.- EXAMPLE ...............................................................................................................................................- 26 -
- SAFETY CONSIDERATIONS ............................................................................................................... - 27 -
- MAINTENANCE ................................................................................................................................... - 27 -
- TECHNICAL SERVICE ....................................................................................................................... - 28 -
 

User Manual

Tel: +0086-023-67628702 Email:tech@cqbluejay.com

www.cqbluejay.com

Add: 1802,Building 2,No.88,Jianxin East Road,Chongqing,400020,China - 3 -

1. - SUMMARIZE

BJ-194Z Multi-Function Power Meter is a LCD screen electrical panel power meter. It is the ideal

choice for monitoring and measuring of 3P4W or 3P3W power systems.

It can measure all of the power parameters in power grid:

Current,

Voltage,

Frequency,

Active power,

Reactive power,

Apparent power,

Energy (Active/Reactive),

Power factor,

With optional expansion modules, it can also transmit the parameter into 2*Relay output (2DO) and

4*Switch input (4DI). For transformers, generators, capacitor banks and motors of the distributed

detection, automatic control system, on-line monitoring display.

It can replace the traditional analog or many digital measurement instruments (such as ammeter,

voltmeter, power meter, power factor meter, frequency meter, etc.) with the advantages of improving

system reliability, making the on-site wiring convenient and reduce system cost.

With serial port, BJ-194Z can connect with PC; and use Modbus to set programming and read the

data. Based on this power meters, you can simply set up a monitoring system with the IPC and

central software.

APPLICATIONS

-. All power parameter measurement;

-. Energy Measurement and electrical fire monitor and control;

-. Replacing the three-phase power meter, three phase electricity transmitter;

-. Transformers, generators, capacitors and electric motors distributed detection;

-. Medium and low pressure systems;

-. SCADA, EMS, DCS integrators.

User Manual

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2. - FEATURES

2.1. - Electricity Metering

By means of an internal microprocessor it simultaneously measures:

Parameter

Symbol

A-phase

B-phase

C-phase

Total

Phase-line voltage

*Phase-phase voltage

Current

Frequency

Power factor

Cos Φ

Active power

Reactive power

Var

Active energy

Reactive energy

Varh

4-quadrant electric data

Note: Phase-phase voltage is Uab, Ubc, Uca, voltage data determined by the different wiring

Available: x: Display and communications.

xx: Only can read in RS485 communication

The BJ-194Z delivers the visualization of parameters listed above by means of LCD type

displays. In the main display area shows 4 power parameters, with other display area show the

various parameters and state of meter on each page jump. For more details of measurement

parameters please refer to the subsequent for displays introduction and RS485 communication

instructions.

OTHER FEATURES

- Low-size (96 x 96 mm), panel-mounting meter.

- True R.M.S. measuring system.

- Instantaneous, maximum and minimum values of each measured parameter.

- Energy measurement (indication through a lighting led)

- RS-485 or Ethernet(optional) type communication to a PC.

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2.2. – Specifications

- Reference standard:

Basic electricity: IEC 61557-12:2010

Active energy: IEC 62053-21:2010

Reactive energy: IEC 62053-23:2010

- Accuracy standards

Parameter

Accuracy

A phase

B phase

C phase

All

Voltage

Current

Active Power

Reactive Power

Apparent power

Power Factor

Active Energy

Reactive Energy

Frequency

0.5

1.0

2.0

0.05

var1

VA1

PF1

var2

VA2

PF2

var3

VA3

PF3

var

varh

- Input

Voltage: Rated 300V L-N, (optional 100V L-N)

Current: Rated 5A (optional 1A)

Frequency: 45-65Hz

- Load

Voltage: <0.1VA / phase (rated 220V)

Current: <0.4VA / phase (rated 5A)

- Overload

Current: 1.2 times rated continuous; 1 seconds for 10 times the rated

Voltage: 1.2 times the rated continuous; 10 seconds for 2 times the rated

- Dielectric strength

IEC / EN 61010-1:2010

2kV AC RMS 1 minute, between input / output / case / power supply

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- EMC Test

Standard

Test voltage

Electrostatic discharge immunity

test

IEC-61000-4-2

level 4

8KV

Electrical fast transient burst

immunity test

IEC61000-4-4

level 3

Input 1kV; Power supply 2kV

Surge (Shock) immunity test

IEC61000-4-5

level 4

common mode test voltage

4kV

- Work environment

Temperature: -20°C ~ +60°C

Humidity: RH 20% ~ 95%（No condensation）

- Protection

Panel: IP54

Case: IP20

- Storage Conditions

Temperature: -25°C ~ +70°C

Humidity: RH 20% ~ 95%

- Working Power

AC/DC 90-240V, 45-65Hz

DC 20-60V (Optional)

Maximum power consumption 6W

- Dimensions

L × W × H =96mm×96mm×71mm

- Installation hole size

L × W = (91+0.8mm) × (91+0.8mm)

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3. - INSTALLATION AND START-UP

The manual you hold in your hand 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.

3.1.- Installation

Mounting

Instrument is to be mounted on panel (cut-out 91+0.8 x 91+0.8 mm). 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.

Front view Side view

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Notes:

Input signal: BJ-194… series using a separate acquisition calculate for each measurement channel, to ensure

consistent in use, for different load forms, it's a variety of connection mode. Access wire shall be met: the current

2.5 square mm, voltage of 1.5 square millimeters.

Voltage input:

Input voltage should not exceed the rated input voltage products (120Vac or 450Vac),

Otherwise, you should use external CT. Suggest 1A fuse be installed in the voltage input side.

Current Input:

Standard input current is 5A, if greater than 5A should use external CT.

When the CT is connected with other instruments, make sure wiring methods be used in series.

Before remove the current input connection, must be sure to disconnect the primary circuit or shorted secondary

circuit of CT. In order to facilitate disassembly, please do not connect to CT directly, and the terminal block is

suggested.

Sequence of wire:

Please make sure that the input voltage and current corresponding to the same phase sequence, and the same

direction; Otherwise, the Values and symbols will be wrong!! (Power and Energy)

The input network configuration of instrument depends on the CT number of the system:

in the condition of 2 CT, select the three-phase, three-lines two components;

in the condition of 3 CT, select the three-phase, four-lines three component mode.

Instrument connection mode, set of the instrument (programming input network NET) should be the same load

wiring as measured wiring. Otherwise, the measurement instrument will lead to incorrect voltage or power.

In three-phase three-wire mode, the measurement and shows the line voltage;

In three-phase four-wire mode, the measurement and shows the phase voltage.

Auxiliary power:

BJ-194… series with universal (AC / DC) power input, if not for a special statement, we provide the 220VAC/DC

or 110VAC/DC power interface for standard products. Instruments limit work power supply: AC / DC: 90-240V,

please ensure that the auxiliary power can match with BJ-194… series meter to prevent damage to the product.

A. Suggest install 1A fuse in the fire line side.

B. For the areas with poor power quality, suggest install lightning surge suppressor and rapid burst suppressor to

prevent lightning strikes.

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Add: 1802,Building 2,No.88,Jianxin East Road,Chongqing,400020,China - 9 -

3.2. - Connection Terminal

Upper connection terminal

RP-

RP+

AP-

AP+

GUD

RS485B

RS485A

Power supply

47. Active energy pulse output (+)

48. Active energy pulse output (-)

49. Reactive energy pulse output (+)

50. Reactive energy pulse output (-)

1. *Supply voltage input: 0 V

2. *Supply voltage input: 220 Va.c.

58. RS-485 ( + )

59. RS-485 ( - )

60. RS-485 ( GND )

Middle connection terminal

DO2

DO1

COM

DI1+

DI2+

DI3+

DI4+

20. Route 1 digital output (+)

19. Route 1 digital output (-)

22. Route 2 digital output (+)

21. Route 2 digital output (-)

70. Digital input COM pin

71. Route 1 digital input (+)

72. Route 2 digital input (+)

73. Route 3 digital input (+)

74. Route 4 digital input (+)

Lower connection terminal

C-phase Current

B-phase Current

A-phase Current

11. Voltage A-phase input

12. Voltage B-phase input

13. Voltage C-phase input

14. Neutral Voltage input

4. Current A-phase - S1 input

5. Current A-phase - S2 input

6. Current B-phase - S1 input

7. Current B-phase - S2 input

8. Current C-phase - S1 input

9. Current C-phase - S2 input

Note:

The terminal pin will change depends on special order requirement; please refer to the sticker on

the meter!

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