BLUE JAY BJ194L-ASY User manual

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BJ194L-ASY Mini Multi-function Meter
User Manual
Version：3.0

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Read me
When you use BJ194L-ASY series mini 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
BJ194L-ASY series mini 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

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Directory
CONTENTS Page
1. SUMMARIZE--------------------------------------------------------------------------------------------------------- 3
2. APPLICATIONS --------------------------------------------------------------------------------------------------- 3
3. FEATURES --------------------------------------------------------------------------------------------------------- 4
3.1. - Electricity metering ---------------------------------------------------------------------------------------- 4
3.2. - Specifications ----------------------------------------------------------------------------------------------- 5
4. INSTALLATION AND START-UP ------------------------------------------------------------------------------ 7
4.1. - Installation ----------------------------------------------------------------------------------------------------7
4.2. - Connection Terminal ------------------------------------------------------------------------------------- 9
4.3. - Connection Drawing---------------------------------------------------------------------------------------10
5. SCREEN DISPLAY------------------------------------------------------------------------------------------------11
6. OPERATION MODE --------------------------------------------------------------------------------------------- 12
7. SETUP PROCEDURE ------------------------------------------------------------------------------------------- 14
7.1.- Input Password-----------------------------------------------------------------------------------------------14
7.2. - Input Signal Selection ------------------------------------------------------------------------------------14
7.3. - Communication Preferences-----------------------------------------------------------------------------18
7.4. - Digital Output Setting--------------------------------------------------------------------------------------20
7.5. - System Setting----------------------------------------------------------------------------------------------24
7.6. - Menu Structure----------------------------------------------------------------------------------------------26
7.7. - Display Character instructions-------------------------------------------------------------------------27
8. PULSE OUTPUT --------------------------------------------------------------------------------------------------28
9. COMMUNICATION PROTOCOL -----------------------------------------------------------------------------28
9.1. - Connection for the RS485 BUS-------------------------------------------------------------------------29
9.2. - MODBUS © protocol---------------------------------------------------------------------------------------30
9.3. - Register Address Table------------------------------------------------------------------------------------31
9.4. - Example-------------------------------------------------------------------------------------------------------34
10. SAFETY CONSIDERATIONS--------------------------------------------------------------------------------- 35
11. MAINTENANCE---------------------------------------------------------------------------------------------------35
12. TECHNICAL SERVICE----------------------------------------------------------------------------------------- 36

Product Manual
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1. - SUMMARIZE
BJ194L-ASY series mini multi-function meter is a efficient and economy multifunction power
meter. It is the ideal choice for monitoring and measuring of power systems.
It can measure all of the power parameters in power grid:
Current,
Voltage,
Frequency,
Active power,
Reactive power,
Energy,
Power factor,
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.
Optional digital I/O port, and with serial port, BJ194L-ASY mini multi-function meter 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.
2. - APPLICATIONS
◆All power parameter measurement;
◆Power factor measurement and control;
◆Energy Measurement;
◆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.

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3. - FEATURES
3.1. - Electricity Metering
By means of an internal microprocessor it simultaneously measures:
Parameter
Symbol
A-phase
B-phase
C-phase
Total
Single phase voltage
V
x
x
x
/
*Phase-phase voltage
V
x
x
x
/
Current
A
x
x
x
/
Frequency
Hz
/
/
/
x
Power factor
Cos Φ
/
/
/
x
Active power
W
/
/
/
x
Reactive power
Var
/
/
/
x
Active energy
Wh
/
/
/
x
Reactive energy
Varh
/
/
/
x
Notes: 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 194L-ASY delivers the visualization of parameters listed above by means of LCD type
displays. In the main display area shows 3 power parameters, with other display area show the
various parameters and state of meter on each page jump.
OTHER FEATURES
- Low-size (72 x 72 mm), panel-mounting meter.
- True R.M.S. measuring system.
- Instantaneous, maximum and minimum values of each measured parameter.
- Energy measurement
- RS-485 or Ethernet (optional) type communication to a PC.

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3.2. – Specifications
1. - Reference standard:
Basic electricity: GB/T13850-1998 (IEC688-1992)
Active power: GB/T17215-2002 (IEC61036:2000)
Reactive power: GB/T17882-1999 (IEC61268:1995)
2- Accuracy standards
Parameter
Accuracy
A phase
B phase
C phase
All
Voltage
Current
Active Power
Reactive Power
Power Factor
Active Energy
Reactive Energy
Frequency
0.5%fs
0.5%fs
0.5%fs
0.5%fs
0.5%fs
1%rd
2%rd
0.05%rd
V1
A1
V2
A2
V3
A3
W
var
PF
Wh
varh
Hz
3. - Input
Voltage: Rated 400V (optional 100V)
Current: Rated 5A (optional 1A)
Frequency: 45-65Hz
4. - Load
Voltage: <0.5VA / phase (rated 220V)
Current: <0.5VA / phase (rated 5A)
5. - Overload
Current: 1.2 times rated continuous; 10 seconds for 10 times the rated
Voltage: 1.2 times the rated continuous; 10 seconds for 800V
6. - Dielectric strength
IEC 688 / IEC 255-3 (1989)
2kV AC RMS 1 minute, between input / output / case / power supply

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7. - 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
8. - Work environment
Temperature: -20℃~ +60℃
Humidity: RH 20%～95%（No condensation）
9. - Protection
Panel: IP54
Case: IP20
10. - Storage Conditions
Temperature: -25℃～+70℃
Humidity: RH 20%～95%
11. - Working Power
AC 80-265V, 45-65Hz, DC 80-380V
DC 20-60V (Optional)
Maximum power consumption 6W
12. - Dimensions
L × W × H =72mm×72mm×71mm
13. - Installation hole size
L × W = (66+0.8mm) × (66+0.8mm)

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4.- 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.
4.1.- Installation
Mounting
Instrument is to be mounted on panel (cut-out 66+0.8 x 66+0.8 mm). Keep all connections
into the cabinet.
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: BJ194L using a separate acquisition calculate for each measurement channel, to
ensure consistent in use, for different load forms, its a variety of connection mode. Access wire
shall be met: the current 2.5 square mm, voltage of 1.5 square millimeters.
A. Voltage input:
Input voltage should not exceed the rated input voltage products (100V or 400V),
Otherwise, you should use external CT. Suggest 1A fuse be installed in the voltage input side.
B. 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.
C. 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:
BJ194L series mini multi-function meter 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: 80-270V, please ensure that the
auxiliary power can match with BJ194Z 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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4.2. - Connection Terminal
Upper connection terminal
60
59
58
1
2
GUD
RS485B
RS485A
Power supply
1. *Supply voltage input: 0 V
2. *Supply voltage input: 220 Va.c.
58. RS-485 ( + )
59. RS-485 ( - )
60. RS-485 ( GND )
Lower connection terminal
14
13
12
11
9
8
7
6
5
4
Un
Uc
Ub
Ua
C-phase Current
B-phase Current
A-phase Current
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
11. Voltage A-phase input
12. Voltage B-phase input
13. Voltage C-phase input
14. Neutral Voltage input

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4.3. - Connection Drawing
IMPORTANT REMARK!
If power = -0.01 is shown for any of the phases and voltage and current are not zero for this
phase, check out following points:
- Assure that A, B and C phases coincide in voltage and current.
- Correct polarity? Reverse the current transformer placed at this phase.
Note: This connection drawing is for reference only, the actual connecting terminal please refer to
the label on the rear part.

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5. SCREEN DISPLAY
Note: Please see detail instructions of “*” items at “OPERATION MODE”.

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6. - OPERATION MODE
When the 194L-ASY is powered up, the entire symbol will be on, and the meter starts to self-
test. After some seconds, the meter is ready for operation and shows one of the available
screens.
Parameters on display can be switched by pressing key or . LCD shown on
screen at any moment
When the key is pressed, the screen CURRENT values of each phase are now
showing.
Pressing again the key , the screen will show the following parameters successively.
In setting menu, pressing key can move the setting cursor to left;
Pressing can enter the number 0 ~ 9.
This key named "SET" key, pressing it can open the programming menu and return to
previous menu.
This key named “Enter” key, pressing this key you can exit it with saving any modification
that you might have done, in menu operation press “Enter” key, and user can go to the next
menu.
Note:
Press key or in normal standby status, and the meter will show different data
in main screen:
In the menu set mode, when changes the parameter and exit setting, the meter will ask to
"SAVE", press exit without saving
press save and exit.

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Screen
Shown
Explain
1
Show the phase voltage Ua, Ub, Uc
(three-phase four-wire)
or line voltage Uab, Ubc, Uca
(three-phase three-wire)
In the three phase4-wire connection, press can
switch show the phase voltage and line voltage.
Screenshots show: Ua = 380.0V,
Ub = 380.0V,
Uc = 380.0V
2
Shows three-phase current Ia, Ib, Ic
units A,
Screenshots show: Ia = 5.000A,
Ib = 5.000A,
Ic = 5.000A
The symbol in upper left corner of the screen mean the
meter show the first quadrant data
3
Shows the total active power P,
total reactive power Q,
total power factor PF.
Screenshots show: P = 5.700kW,
Q = 0kvar,
PF = 1.000
4
Show grid frequency,
Screenshots show: F = 50.00Hz,
5
Show positive active energy:
Second line show 4 high bit value, and the third line show 4
low bit value.
8 digital combined show the energy value.
Screenshots show: EP = 398.0Wh.
Press the key to switch show negative active
energy values.
6
Show positive reactive energy:
Second line show 4 high bit value, and the third line show 4
low bit value.
8 digital combined show the energy value.
Screenshots show: EP = 647.0varh.
Press the key to switch show negative reactive
energy values.

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7. - SETUP PROCEDURE
The SETUP procedure of the BJ194L-ASY is performed by means of several SETUP options.
Once into the SETUP, use the keyboard to select different options and enter required variables:
7.1.- Input Password
A 4-figure password is required to be entered (in case that in case that the meter will work
without permission.)
At normal display mode, press to enter the programming mode, meter display
Meter display “ ”,
Ask for the password. Press to input the password number, from “0~9”. Press
to move the cursor . After password switch press to confirm the input.
If password is correct, meter can enter next setting.
Notes: the default password is 0001.
7.2. - Input Signal Selection
Press , return to level 1 menu.
In this section, user will set:.
1. Input net mode;
2. Voltage measure range;
3. Current measure range;
4. Voltage transformation ratio;
5. Current transformation ratio.

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7.2.1.- Choice the input net mode
In level 1 menu, use and to choose item “-IN-”, and the meter shows like this:
then press , enter the level 2 menu, choose “LINE”, meter shows:
Then press again, enter the level 3 menu.
Use and to select the right wiring mode, meter shows like this:
Or
Note: Selecting the wiring mode must match with actual wiring, or the reading data will go
wrong.
7.2.2.- Voltage measure range
In level 1 menu of “-IN-”
Choose item “U.SCL”, and the meter shows like this:
then press , enter the level 3 menu, user can see the voltage range:

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or
100V: Maximum measured value is 100V
380V: Maximum measured value is 380V
Note: A different range will affect the accuracy of measurements. If the accuracy is 0.5.
Select 100V range, means the minimum scale value is 0.5V (100 x 0.5%);
Select 380V range, means the minimum scale value is 1.9V (380 x 0.5%).
7.2.3.- Current measure range
In level 1 menu of “-IN-”.
Choose “I.SCL”, meter shows like this:
then press , enter the level 3 menu, user can see the current range:
Or
5A: Maximum measured value is 5A.
1A: Maximum measured value is 1A.
Note: Select a different range will affect the accuracy of measurements, if the accuracy is
0.5. Select 1A range, means the minimum scale value is 0.005A (1 x 0.5%);
Select 5A range, means the minimum scale value is 0.025A (5 x 0.5%).
7.2.4- Voltage transformation ratio
In level 1 menu of “-IN-”.
Choose item “r.PT” , meter shows like this:

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then press , enter the level 3 menu, allowing us to set the current transformer.
Press to input the number, from “0~9”. Press to move the cursor. After
password switch press to confirm the input, value is 1~9999.
Note: The input values represent the voltage transformer (primary side voltage) / (secondary
side voltage).
Secondary side voltage is 100V or 380V; user set it at section 7.2.2
7.2.5. - Current transformation ratio
In level 1 menu of “-IN-”.
Choose the item “r.CT”, meter shows like this:
then press , enter the level 3 menu, allowing us to set the current transformer.
Press to input the number, from “0~9”. Press to move the cursor. After
password switch press to confirm the input, value is 1~9999.
Note: The input values represent the current transformer (primary side voltage) / (secondary
side current) .
Secondary side current is 1A or 5A, user set it at section 7.2.3

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7.3. - Communication Preferences
Press , return to level 1 menu.
In this section, user will set:
1. Meter communication address;
2. Baud rate;
3. Communication format.
Note: Not all the meter have communication function, please make sure your purchase
meter first, if no communication mode, you can skip this section.
7.3.1. - Meter communication address setting
One or some BJ194…meter can be connected to a P.C. With this system we can get all the
parameters in one central point of reading. The BJ194..., has a serial RS-485 or RS-232 type
output (according to the model). If we connect more than one device to the same communication
line (RS-485), we have to assign to each of them a different code or direction (from 1 to 247),
since the P.C. needs the identification of every measuring point.
In level 1 menu, choose the item “bus”, the meter shows like this:
Then press , enter the level 2 menu, choose the item “Addr”, the meter shows like this:
Press to input the number, from “0~9”. Press to move the cursor. After
password, press to confirm the input, value is 1~9999.

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7.3.2.- Communication Baud rate setting
In level 1 menu of “bus”.
Choose item “BAUD”, and the meter shows like this:
Then press , enter the level 3 menu, allowing us to set the Baud rate 2400, 4800 or
9600.
or or
7.3.3.- Choose communication format
In level 1 menu of “bus”.
Choose item “data”, and the meter shows like this:
Then press , enter the level 3 menu, allowing us to set the communication data format.
(Factory setting n.8.1)
or or