Delta DPM-C530A User manual

www.deltaww.com
Multi-functional
Power Meter
DPM-C530A User Manual

1
Table of Contents
1. Preface‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 2
2. Notes ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 3
2.1 Safety Notes‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧3
2.2 Installation Environment ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧4
3. Descriptions of Parts‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 5
3.1 Operating Interface ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧5
3.2 Product Name Tag‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧5
3.3 Exterior and Dimensions‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧5
4. Installation‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧7
4.1 Installation Method ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧7
4.2 Basic Checks ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧9
5. Wiring Diagrams‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
5.1 Wiring on the Back ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧10
5.2 Descriptions of Wiring ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧11
6. Panel Display and Settings ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 13
6.1 Panel Display ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧13
6.2 General Operations ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧15
6.3 Setup Operations‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧16
7. Parameters and Functions ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 22
7.1 Overview of Parameters ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧22
8. Messages of Abnormal Operations ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 72
9. Specifications‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 74
9.1 Specications ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧74
9.2 Communication Specications‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧76
9.3 Modbus Communication‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧77
Appendix ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 82
Appendix 1: Selecting Accessories ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧82

2
Preface
Thank you for choosing this product. This manual offers information related to installation of the
DPM-C530A power meter. Before using the meter, please read this manual carefully to ensure
proper use of this meter. Also, please place the manual at an easy-to-find location for reference at
any time. Before you finish reading this manual, please observe the following notes:：
■No water vapor, corrosive and flammable gas shall be present in the installation environment.
■Follow the instructions on the diagram for wiring the device.
■Grounding must be performed correctly and properly according to provisions from related
regulations on electric work currently effective in the country.
■Do not disassemble the meter or alter its wiring with power connected.
■With power on, do not touch the power-connecting area to avoid electric shock.
If you still experience issues in the use, please contact your distributor or our customer service center.
As the product gets updated and improved, modifications on the specifications will be addressed in
the newest version of manual obtainable by contacting your distributor or downloading from the Delta
Electronics website（http://www.delta.com.tw/ia/）.

DANGER
DANGER
STOP
STOP
3
2.1 Safety Notes
Always be aware of the following safety notes when installing, wiring, operating, maintaining, and
checking the device.
◆Notes on Installation
» Install the power meter according to instructions on the manual. Otherwise, damage on the device might
result.
» It is forbidden to expose and use this product in a place present with matters, such as water vapor,
corrosive and flammable gas. Otherwise, electric shock, re, or explosion might result.
» Do not install the meter in an environment with a temperature that exceeds range on the specication.
Otherwise, inability of the meter to operate normally or damage on the meter might result.
» Do not use the meter on an alarm console that might cause personnel injury or death, damage on the
device, or system shutdown.
◆Note on Wiring
» Keep a good grounding on the grounded terminals, as improper grounding might cause
abnormal communication, electric shock, or re.
◆Notes on Operation
» Do not alter wiring with power turned on. Otherwise, electric shock or personnel injury might result.
» Do not touch the panel with a sharp item. Otherwise, indentation on the panel might result, which
causes the meter to not function normally.
◆Maintenance and Check
» Do not get to inside of the meter. Otherwise, electric shock might result.
» Do not take the meter panel apart when the power is on. Otherwise, electric shock might result.
»Do not touch the wiring terminals within 10 minutes after turning off power, as the remaining voltage
might cause electric shock.
»Do not block ventilation ducts when operating the meter. Otherwise, the meter will breakdown
because of inadequate heat dissipation.
◆Methods of Wiring
» Do not use voltage that exceeds range specied for the meter. Otherwise, electric shock or re might result.
»When wiring, take apart the quick connector from the main meter body.
»Connect only one cord on one plug on the quick connector.
»For wrongfully forced unplug, recheck the connecting cord and restart.
◆Wiring for Communication Circuits
» Follow the standard specication on use of wires for communication wiring.
» Length of communication wires should be within the specied standard.
»Use correct grounding loop to avoid communication issues.
»To avoid stronger noise interference that causes the meter to not operate normally, use an independent
wiring slot to separate the communication cable for the meter from all power cords and motor power cords.
Notes

4
2.2 Installation Environment
Before installation, this product must be placed in its packaging box. If not used for a while, be
sure to watch for the following when storing the meter, so that the product could be kept under
the company's warranty coverage for future maintenance.
■Place the device in a dry location free of dust.
■Ambient temperature for the storage location must be within the range of -20°C to +70°C (-4°F
to 158°F).
■Relative humidity for the storage location must be within the range of 5% to 95%, with no
condensation.
■Avoid storing at an environment present with corrosive gas and liquid.
■Package properly and store on a rack or counter.
■Suitable installation environment for this product includes: place with no device that generates
high amount of heat; place with no water drop, vapor, dust, and oily dust; place with no corrosive
and flammable gas; place with no floating dust and metal particles; place with no shaking and
interference from electromagnetic noise.

5
3.1 Operating Interface
DPM-C530A uses a LCD display that exhibits four pieces of measurement information on each
page. Diagram below is an illustration of the interface.
3.2 Product Name Tag
3.3 Exterior and Dimensions
Descriptions of Parts
A. Title
B. Area of display
C. Pulse light
D. Fault light
E. Menu key
F. Up key
G. Down key
H. Enter key
Descriptions:
MODEL : XXXXXXXXX
REV. : XX.XX
Input : 80~265VAC, 50/60Hz
100~300VDC
MAX 4.6W
XXXXXXXXXXXXXXXX
MADE IN XXXXXX
Model
Version
Certification
Serial Number
Country
SPEC LABEL
94.1
90
72.0 22.1
96
90
96

6
◆Front
◆Back
FUNCTION PIN VOLTAGE CURRENT
MEASURED VOTAGE
V1
20V L-N ~ 400V L-N
35V L-L ~ 690V L-L -
V2
V3
Vn
CONTROL POWER
L1/+
80 ~ 265 VAC
100 ~ 300 VDC 400mA MAX.
L2/-
MEASURED CURRENT
I1+
- 1A ~ 5A
I1-
I2+
I2-
I3+
I3-
RS-485
D+
-7 ~ +12 VDC -
D-
PULSE MENU UP DOWN ENTER FAULT
198*160 DOTS LCD DISPLAY
I3-
V1 V2 V3 Vn L1/+ L2/-
D+ D-
I1+ I1- I2+ I2- I3+
INPUT / OUTPUT CONNECTOR PIN ASSIGNMENT

7
4.1 Installation Method
Note：
■The installation method should be based on instructions. Otherwise, breakdown would result.
■For better effectiveness of cooling cycles, sufcient space must be kept between adjacent
objects and walls during the installation. Otherwise, imperfect cooling would result.
■Maximal thickness for the panel installed should not exceed 5 mm.
Illustration of Installation：
Step 1:
Open the square hole on the metal plate and then
install the power meter.
Step 2:
Install the fixing mount into the sliding slot and
then push the meter in to touch the metal plate.
Step 3:
During the installation, reserve a 50 mm-wide space behind the power meter for dissipating heat
50
單位：mm
Installation

8
Dimensions of Panel Hole：

9
4.2 Basic Checks
Items Checked Contents of Checks
General Check
■Regularly check for losing of the xing mount at the location where the power
meter and device are connected.
■Guard against entrance of foreign objects, such as oil, water, or metal powder at
the heat dissipating holes. Guard against entrance of drill cut powders into the
power meter.
■Should the power meter be installed at a place present with harmful gas or dust,
guard against entrance of those matters into the meter.
Pre-operation
Check
(not supplied with
control power)
■Insulate the connecting spot of the wiring terminals.
■Communications wiring should be done properly, or abnormal operations might
result.
■Check for presence of conducive and flammable objects, such as screws or metal
pieces, in the power meter.
■Should electronic devices used near the power meter experience electromagnetic
interference, tune with instruments to reduce electromagnetic interference.
■Check for correct voltage level for the power supplied to the power meter.
Pre-running Check
(supplied with
control power)
■Check whether power indicator light is lit.
■Check whether communication between every device is normal.
■If there is any abnormal response from the power meter, contact your distributor
or our customer service center.

10
5.1 Wiring on the Back
This chapter illustrates how the wiring on the back is done.
Note:
■To avoid electric shock, do not alter wiring when the power is on.
■As there is no power switch on the power meter, be sure to install a breaker switch on the power
cord for the meter.
Recommended wiring materials are shown below:
Connecting Terminals Wire Diameters Screw Turning Torque
Functional Power AWG 10~24 7.14 kgf-cm (0.7 N*m)
Measured Voltage AWG 10~26 7.14 kgf-cm (0.7 N*m)
Measured Current AWG 14~22 8.0 kgf-cm (0.79 N*m)
RS-485 AWG 14~28 2.04 kgf-cm (0.2 N*m)
RTwisted pair cables must be used in cabling for RS485 communication. When connecting multiple
devices in series, the wiring method is displayed in the diagram below.
The D+ communication terminal for all devices should be connected on the same twisted pair cable. The
D- terminals should be connected on the other twisted pair cable. The insulation net is grounded. The
device on the end terminal needs to have terminal resistor installed on it.
Wiring Diagrams
Terminal Resistor

11
5.2 Descriptions of Wiring
This chapter illustrates how wiring is done for this panel.
■Measured Voltage:
When measured voltage is higher than the rated specication (refer to Electrical Specication) for the
device, use of an external potential transformer should be considered.
■Measured Current:
When measured current is higher than the rated specication (refer to Electrical Specication) for the
device, use of an external current transformer should be considered.
■Supported Methods of Wiring:
A N
I1+
I1-
I2+
I2 -
I3+
I3-
V1 V2 V3 Vn
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A NB
Diagram 5-1: One-phase two-wire, 1 CT Diagram 5-2: One-phase three-wire, 2 CT
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A NB C
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A NB C
Diagram 5-3: Three-phase three-wire,
ΔDelta-connection, 3 CT, No PT
Diagram 5-4: Three-phase three-wire,
ΔDelta-connection, 2 CT, No PT

12
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A NB C
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A NB C
Diagram 5-5: Three-phase three-wire,
ΔDelta-connection, 3 CT, 2 PT
Diagram 5-6: Three-phase four-wire,
Y-connection, 3 CT, No PT
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A N
B C
I1+
I1-
I2+
I2-
I3+
I3-
V1 V2 V3 Vn
A N
BC
Diagram 5-7: Three-phase four-wire,
Y-connection, 3 CT, 3 PT
Diagram 5-8: Three-phase four-wire,
Y-connection, 2 CT, 3 PT
■The following symbols are used in the diagram:
Symbol
Description Grounding Current
transformer Terminal resistor
Potential
or voltage
transformer
Fuse

13
6.1 Panel Display
6.1.1 Area of Display
DPM-C530A uses LCD display that exhibits four pieces of measurement information on each page.
Diagram below is an illustration of the display panel:
Descriptions:
ATitle
BArea of display
CPulse light
DFault light
EMenu key
FUp key
GDown key
HEnter key
6.1.3 Descriptions of the Keys
Name of Key General Mode Conguration Mode
Menu key Enter into Menu or return to previous
page Return without saving current settings
Up key Move up to select an item or page Increase numbers
Down key Move down to select an item or page Decrease numbers
Enter key Enter into the selected item Enter into the setting and move to the
next location of setting
Panel Display and Settings

Current THD
1. Time, date
Phase voltage Line voltage Unbalanced
phase voltage %
Unbalanced line
voltage %
0. Setting
1. Voltage Measure
1. Current
1. Current
1. Area
History
2. Current measure
2. Voltage
2. Voltage
2. Auto mation
3. PF/Hz
3. Power
3. Power
3. Data Log
4. Power measure
4. Power factor
4. Power factor
5. Energy measure
5. Frequency
5. Frequency
6.Harmonics
6. Harmonics
6. Harmonics
7. Demanics
8.Maximum
9. Minimum
10.Alarm
11. Advanced
2. Meter information
Current Unbalanced
current %
3. Communication parameter
Power factor Displacement PF Frequency
4.CT, PT proportion
Total power Active power Reactive power Apparent power
Apparent power
demand
5. System parameter
Active energy Reactive energy Apparent energy Automatic
energy 1
Automatic
energy 2
6. Alarm
Total harminics Phase voltage
THD
7. Demand
Current demand Active power
demand
Reactive power
demand
8. Reset
14
6.1.3 Menu Tree
Default
MENU

15
6.2 General Operations
6.2.1 Observing Measured Data
■Voltage Measurement:
Parameter of voltage measured by the power meter, including phase voltage, line voltage, rate of
phase voltage imbalance, rate of line voltage imbalance, etc
■Current Measurement:
Parameter of currents measured by the meter, including phase/line voltage, rate of current imbalance,
etc.
■Power Factor, Frequency (PF、Hz):
Power factor and parameter of frequency measured by the meter, including power factor, displacement
power factor, frequency, etc.
■Power Measurement:
Parameter of power measured by the meter, including active, reactive, and apparent power for every
and combined phase.
■Energy Measurement:
Parameter of electrical energy by the meter, including active, reactive, and apparent electrical energy
on positive and opposite phases.
■Harmonic:
Parameter of harmonic measured by the meter, including total harmonic for voltage and current,
harmonic for voltage on every phase, harmonic for current on every phase.
■Demand:
Parameter of demand measured by the meter, including demand for previous, current, forecast and
peak current; active power; and reactive power.
■Maximum:
Maximum parameter measured by the meter, including maximum value of voltage, current, power
factor, frequency, power, harmonic, and demand.
■Minimum:
Minimum parameter measured by the meter, including minimum value of voltage, current, power factor,
frequency, power, harmonic, and demand.
■Alarm: Parameter of alarms for the meter.
(1) Press the Menu key until the menu appears.
(2) Select an item from 1~7 that you want to take a look at.
(3) Press the Up or Down key to switch between pages for every item of parameter.
(4) Press the Menu key to return to the menu page.
Example:
Assume having entered into the page of item 1. Measurement of Voltage, you will a page for phase
voltage. Press the Down key to switch to the page for line voltage. Press the Down key again to switch
to the page for the rate of phase voltage imbalance. Press the Down key again to switch to the page
for the rate of line voltage imbalance. Press the Down key again to return to the phase voltage page.
Otherwise, press the Up key to reverse the cycling order mentioned above.

16
6.3 Setup Operations
6.3.1 Time and Date Settings
■Time:Current time on the meter, including hour, Minute, second.
■Date: Current date on the meter, including last two digits of the year, Month, Day, and day of week.
■Steps to set up are as follows:
(1) Press Menu key until the menu appears.
(2) Select 0. Setup and press Enter key to enter into the setup menu.
(3) Select 1. Date/Time and press the Enter key to enter into options.
(4) Select Time or Date and press the Enter key to start setting up.
(5) When the option is highlighted, start setting up by using the Up and Down keys to select the
numbers needed for the time and date.
(6) Press the Enter key to nish setting up for a number and move on to set up for the next number.
(7) Repeat steps (5)~(6) until nishing setup for the last number and press the Enter key. When the
highlight disappears, setup is complete. If there is a need to cancel the setup in the middle, press
the Menu key to return without saving the numbers that were just set.
(8) After completing or cancelling the setup, press the Menu key again to return to the setup menu.
6.3.2 Communication Settings
■Address:
Range of address for the device is 1~254, with the broadcast address of 255 and factory default of 1.
■Protocol:
Mode of communication transmission, with a selection from RTU (factory default) and ASCII.
■Baud Rate:
Speed of communication transmission, with the factory default of 9600 kbps.
■Data Bit:
Length of packet data, with a selectable range of 7 and 8 bits; however, only 8 bits (factory default) is
selectable under RTU mode.
■Parity:
Odd and even checking bit for communication, with a selection from None (factory default), Even, and
Odd.
■Stop Bit:
Signal for completion of packet transmission, with a selection from 1 and 2 bit(s) (factory default: 1 bit).
■Steps to set up are as follows:
(1) Press Menu key until the menu appears.
(2) Select 0. Setup and press Enter key to enter into the setup menu.

17
(3) Select 3. Communication and press the Enter key to enter into options.
(4) Select Address and press the Enter key to start setting up for the address.
(5) When the option is highlighted, start setting up by using the Up and Down keys to select the
numbers needed.
(6) Press the Enter key to nish setting up for a number and move on to set up for the next number.
(7) Repeat steps (5)~(6) until nishing setup for the last number and press the Enter key. When the
highlight disappears, setup is complete. If there is a need to cancel the setup in the middle, press
the Menu key to return without saving the numbers that were just set.
(8) Select Protocol and press the Enter key to start setting up for communication mode.
(9) When the option is highlighted, start setting up by using the Up and Down keys to select the mode
needed, such as RTU or ASCII.
(10) Press the Enter key to complete. When the highlight disappears, setup is complete. If there is a
need to cancel the setup in the middle, press the Menu key to return without saving the mode that
was just selected.
(11) Setup for Baud rate, data bit, parity, and stop bit all follow the steps mentioned above.
(12) After completing or cancelling the setup, press the Menu key again to return to the setup menu.
6.3.3 Settings for Potential and Current Transformers
■Primary-side current transformer (CT1): Ampere for the primary-side current transformer, with a
selectable range of 1~9999 A (factory default: 1 A).
■Secondary-side current transformer (CT2): Ampere for the secondary-side current transformer, with a
selection of 1 and 5 A (factory default: 1 A).
■Primary-side potential transformer (PT1): Voltage for the primary-side potential transformer, with a
selectable range of 1~9999 V (factory default: 1 V).
■Secondary-side potential transformer (PT2): Voltage for the secondary-side potential transformer, with
a selectable range of 1~9999 V (factory default: 1 V).
■Steps to set up are as follows:
(1) Press Menu key until the menu appears.
(2) Select 0. Setup and press Enter key to enter into the setup menu.
(3) Select 4. Transformer Ratio and press the Enter key to enter into options.
(4) Select CT1 and press the Enter key to start setting up for current transformer on the primary side.
(5) When the option is highlighted, start setting up by using the Up and Down keys to select the
numbers needed.
(6) Press the Enter key to nish setting up for a number and move on to set up for the next number.
(7) Repeat steps (5)~(6) until nishing setup for the last number and press the Enter key. When the
highlight disappears, setup is complete. If there is a need to cancel the setup in the middle, press
the Menu key to return without saving the numbers that were just set.

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(8) When the setup is nished, other parameters could be set. The steps start from step 5 mentioned
above.
(9) After completing or cancelling the setup, press the Menu key again to return to the setup menu.
6.3.4 Settings for System Parameters
■Language:
Language displayed on the operating interface of the meter. Selectable languages are English (factory
default) and Simplied Chinese.
■Backlight:
Brightness of LCD backlight on the meter, with a selection of 100% (factory default), 50%, and 25%.
■Timeout:
Time to maintain brightness of LCD backlight on the meter. With 100% selected, the backlight always
remains bright. With 50% and 25% selected, power saving mode is on with a time set for the backlight
(factory default is 30 seconds). Once the time is up, the backlight is turned off. Touching the keys turns
on the backlight with a brightness based on the percentage selected.
■Power System:
Selection of wiring method for the system, with a selection of one-phase two-wire, one-phase three-
wire, three-phase three-wire, three-phase four-wire (factory default).
■Phase:
For the phase A wire connected to phase C, reversing to phase C wire connected to phase A does not
require re-wiring. Conversion is done by directly selecting this parameter. Selectable modes are ABC
(factory default) and CBA.
■Number of CTs:
Numbers of current transformers on the system. 0, 1, 2, 3 current transformers are selectable. The
default setting of current transformers is 3.
■Number of PTs:
Numbers of potential transformers on the system. 0, 2, 3 potential transformers are selectable. The
default setting of potential transformers is 3.
■Steps to set up are as follows:
(1) Press Menu key until the menu appears.
(2) Select 0. Setup and press Enter key to enter into the setup menu.
(3) Select 5. System and press the Enter key to enter into options.
(4) Select Language and press the Enter key to start setting up for language.
(5) When the option is highlighted, start setting up by using the Up and Down keys to select the mode
needed.
(6) Press the Enter key to complete. When the highlight disappears, setup is complete. If there is a
need to cancel the setup in the middle, press the Menu key to return without saving the mode that
was just selected.

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(7) Setup for backlight brightness, method of wiring、CT 數、PT 數and phase sequence reversal all
follow the steps mentioned above.
(8) Select Timeout and press the Enter key to start setting up for timeout.
(9) When the option is highlighted, start setting up by using the Up and Down keys to select the
numbers needed.
(10) Press the Enter key to nish setting up for a number and move on to set up for the next number.
(11) Repeat steps (9)~(10) until nishing setup for the last number and press the Enter key. When the
highlight disappears, setup is complete. If there is a need to cancel the setup in the middle, press
the Menu key to return without saving the numbers that were just set.
(12) After completing or cancelling the setup, press the Menu key again to return to the setup menu
6.3.5 Alarm Settings
■Alarm:
Whether this alarm is enabled or disabled (factory default).
■Upper:
When the threshold set on the meter is exceeded, an alarm will be generated. The factory default is 0.
■Timeout:
When the threshold set on the meter is exceeded and the time delay set is overdue, an alarm will be
generated. The factory default is 0.
■Lower:
When the threshold set on the meter falls short, the alarm will be cancelled. The factory default is 0.
■Timeout:
When the threshold set on the meter falls short and the time delay set is overdue, the alarm will be
cancelled. The factory default is 0.
■Steps to set up are as follows:
(1) Press Menu key until the menu appears.
(2) Select 0. Setup and press Enter key to enter into the setup menu.
(3) Select 6. Alarm and press the Enter key to enter into options.
(4) Select the setup item needed and press the Enter key to enter into the option.
(5) Select Alarm and press the Enter key to start setting up.
(6) When the option is highlighted, start setting up by using the Up and Down keys to select the mode
needed.
(7) Press the Enter key to complete. When the highlight disappears, setup is complete. If there is a
need to cancel the setup in the middle, press the Menu key to return without saving the mode that
was just selected.
(8) Select Upper and press the Enter key to start setting up for timeout.
(9) When the option is highlighted, start setting up by using the Up and Down keys to select the
numbers needed.