Daiichi Electronics SQLC-110L User manual

SQLC-220-086
INSTRUCTION MANUAL
POWER LINE SUPER MULTI-METER
SQLC-110L
3-Phase 3-Wire
Voltage, Current Input 2VT・3CT
Current Input 3CT
Analog Output
Hardware Model F

SQLC-220-086
1
Thank you for purchase of DAIICHI ELECTRONICS product.
Please read this instruction manual carefully before use.
Safety precautions
Usage environment and product conditions
Please be sure to use this product in a place that meets the following conditions.
In places that do not meet this condition, it may cause malfunction or failure and product life decline.
Within the range of ambient temperature -10 to +55 ℃, humidity 85% RH or less.
Place free of dust, corrosive gas, salt and oily smoke. (Corrosive gas:SO2
/
H2S, etc.)
Location that is not affected by vibration and shock.
Location that is not affected by external noise.
Altitude 1000m or less.
If this unit directly measures an inverter output of cycle control, SCR phase angle control or PWM control,
an error may increase due to its operation principle.
Outdoor use conditions
These products are not a dustproof, waterproof, and splash proof construction.
Please avoid the place with much dust. Moreover, please install in the place not exposed to rain nor water drop.
Please do not install in the place where sunlight hits directly.
Discoloration and degradation of a name plate, and deformation of the case by the surface temperature rise
may occur.
Mounting and wiring
Please refer to this instruction manual for mounting and the wiring.
Please refer to connection diagram for the wiring.
Please avoid a hot line work.
Please use an electrical wire size suitable with the rated current.
Please check the tightening of the screw.
Preparation
This product must be set before use. Please set correctly after reading this instruction manual.
About dew condensation
If the temperature and humidity of an installation change rapidly when a product is a non energization, the waterdrop
by dew condensation may adhere to a display inner side. (The display filter and the LCD surface stick and the pattern
of the shape of a circle or an ellipse occur.)
This phenomenon does not cause any trouble. Disappears when control power is applied for 2 hours.
Maintenance and inspection
Inspection in energized state is dangerous.
No replacement in periodic inspection.
After wiring change and maintenance, attach the terminal cover.
Please wipe off lightly with the dry soft cloth. Please do not use the organic solvent, chemicals, cleaners, etc.,
such as an alcohol, for cleaning.
The LCD may light up during cleaning on the LCD screen. This is a phenomenon that static electricity occurs in
the filter. There is no problem with the product. Leave the unit as it is for a while, and the display goes out
due to natural discharge. Do not press the LCD screen strongly. Pressing the LCD screen may cause the filter and
the liquid crystal surface to remain in contact (such as a round pattern).
Storage
Please store in a place that meets the following conditions.
The ambient temperature is within -25 to +70 ℃ (storage temperature).
Daily average temperature 40 ℃ or less.
Location corresponding to the usage environment and use conditions.
Aluminum electrolytic capacitors are used for products. Please energize the power supply within one year after
purchase.
Countermeasures against troubles.
If this product breaks down within the warranty period, it will be repaired by DAIICHI ELECTRONICS.
Disposal
Please dispose this product as industrial waste (non combustible).
Mercury parts and a nickel-cadmium battery are not used for this product.
Warranty period
The warranty period of the product is one year after the date of delivery.

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Operation
Be careful with the following cautions during use.
Use the input within the rated range. Be careful since negligence of this caution may cause troubles of the unit.
There is a function to hold the maximum value and the minimum value in this product.
The blackout this value will not be cleared by a power supply reset. However, the minimum value may be updated
in case input is not applied to a power up. For this reason, in order to recover previous minimum value, please
apply input within 1 second after switching on a power supply.
The maximum value, a minimum value measurement element
Measurement elements Maximum value
measurement
Minimum value
measurement
Voltage,Current,Demand current,Active power,Demand active power,
Reactive power,Power factor,Frequency ○ ○
Harmonic (Distortion factor ,Effective value ,Content) ○ ×
Be careful not to touch any terminal when power is applied to the unit.
Don’t disassemble or modify this unit without any previous permission of our company, otherwise
the warranty does not apply to the unit any more. Also, modifications may cause troubles, a
fire, or other accidents. For specifications change, etc., please contact us.
Setting
This unit requires setting and confirmation of the measuring range, etc. before use.
Wrong setting, if any, causes malfunction of the unit. If setting should be wrong, neither measurement nor output
becomes correct. Carefully read the instruction manual before setting the unit.
Default setting
The default settings are as specified below at the delivery time.
Please set them according to the working conditions.
The unit will be delivered with your specified setting values, if so specified.
① Voltage, current input (1/2)
№ Setting item Default settings
110V input 220V input
1 Display combination
Pattern Pattern 1
Main monitor A(V)
Sub-monitor (Left) V(UV)
Sub-monitor (Center) W
Sub-monitor (Right) Wh
Bar graph A(V)
2 Alarm output
(1)
Alarm 1
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
Alarm 2
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
3 Demand detection
Demand
current
Upper limit value 80.0A
Interval 0 second
Demand
active
power
Upper limit value OFF
Interval 0 second
Operation form Operating system according with
bimetallic type.
Power factor operation form Instantaneous measurement
4 Harmonic detection
Current
Distortion factor upper limit OFF
5th conversion content rate upper limit OFF
nth content rate Factor 5th
Upper limit OFF
Voltage
Distortion factor upper limit OFF
5th conversion content rate upper limit OFF
nth content rate Factor 5th
Upper limit OFF
5th conversion detection characteristics Inverse time delay mode
Average value time limit 0 minute

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① Voltage, current input (2/2)
№ Setting item Default settings
110V input 220V input
5 Instantaneous
measurement detection
Voltage upper limit value OFF
Voltage lower limit value OFF
6 Backlight Action AUTO
Brightness 3(Middle)
7 Measurement range
Voltage range 6600V 220V
Current range 100.0A
Current display peculiar sensitivity 100.0A
Active power polarity One side swing
Active power range 1200kW 40.0kW
Reactive power range 600kvar 20.00kvar
Power factor range LEAD 0.500 to 1.000 to LAG 0.500
Frequency range 45.0 to 65.0Hz
8 Analog output
(1)
Output factor 1 A(V)
Output factor 2 V(UV)
Output factor 3 W
Output factor 4 cosφ
Output peculiar sensitivity
Current 100.0%
Active power 100.0%
Reactive power 50.0%
Low input cut OFF
9 Pulse output
(1)
Output 1 Factor Wh
Pulse unit 10kWh/p 0.1kWh/p
Output 2 Factor Wh
Pulse unit 10kWh/p 0.1kWh/p
10 External operation
input (1)
Input 1 function Alarm reset
Input 2 function Max./Min. reset
11 Measurement display
ON/OFF
Voltage ON
Current ON
Active power ON
Reactive power ON
Power factor ON
Frequency ON
Watt-hour of receiving ON
Watt-hour of transmission ON
var-hour of receiving ON
var-hour of transmission ON
Harmonic current ON
Harmonic voltage ON
12 Input circuit Phase line change 3φ3W (Fixed)
Input voltage 110V 220V
13 Measurement Dead band 0.0%
Tidal current measurement General measurement
14 Analog output specification (1)(2) 1 to 5V
15
Analog output
adjustment
(1)
Output 1 Bias adjustment 0.0%
Span adjustment 100.0%
Output 2 Bias adjustment 0.0%
Span adjustment 100.0%
Output 3 Bias adjustment 0.0%
Span adjustment 100.0%
Output 4 Bias adjustment 0.0%
Span adjustment 100.0%
Note(1) The setting item is not displayed in case there is no corresponding option.
The external operation input constitutes default value with an alarm output option.
If there is no alarm output option, the function is as follows.
Input 1 function:Max. / Min. reset, Input 2 function:Measurement factor change.
Note(2) Setting items are not displayed except for analog output DC0 to 5V or DC1 to 5V.
And analog output insulation product does not display a setting item.

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② Current input
№ Setting item Default settings
1 Display combination
Pattern Pattern 15
Main monitor A(V)
Sub-monitor (Left) A(U)
Sub-monitor (Center) A(W)
Sub-monitor (Right) -
Bar graph A(V)
2 Alarm output
(3)
Alarm 1
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
Alarm 2
Factor DA
Reset form AUTO
Contact delay time 0 second
Test -
3 Demand detection Demand
current
Upper limit value 80.0A
Interval 0 second
4 Harmonic detection
Current
Distortion factor upper limit OFF
5th conversion content rate upper limit OFF
nth content rate Factor 5th
Upper limit OFF
5th conversion detection characteristics Inverse time delay mode
Average value time limit 0 minute
5 Backlight Action AUTO
Brightness 3(Middle)
6 Measurement range Current range 100.0A
Current display peculiar sensitivity 100.0A
7 Analog output
(3)
Output factor 1 A(V)
Output factor 2 A(U)
Output factor 3 A(W)
Output factor 4 -
Output peculiar sensitivity Current 100.0%
Low input cut OFF
8 External operation
input (3)
Input 1 function Alarm reset
Input 2 function Max./Min. reset
9 Measurement display
ON/OFF
Current ON
Harmonic current ON
10 Input circuit Phase line change 3φ3W (Fixed)
11 Measurement Dead band 0.0%
Tidal current measurement General measurement
12 Analog output specification (3)(4) 1 to 5V
13
Analog output
adjustment
(3)
Output 1 Bias adjustment 0.0%
Span adjustment 100.0%
Output 2 Bias adjustment 0.0%
Span adjustment 100.0%
Output 3 Bias adjustment 0.0%
Span adjustment 100.0%
Output 4 Bias adjustment 0.0%
Span adjustment 100.0%
Note(3) The setting item is not displayed in case there is no corresponding option.
The external operation input constitutes default value with an alarm output option.
If there is no alarm output option, the function is as follows.
Input 1 function:Max. / Min. reset, Input 2 function:Measurement factor change.
Note(4) Setting items are not displayed except for analog output DC0 to 5V or DC1 to 5V.
And analog output insulation product does not display a setting item.

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Content
Safety concerns ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 1
1. Product outline ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 6
1.1 Usage of product ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 6
1.2 Features of product ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 6
2. The name and function of each part ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 7
3. Preparation
3.1 Installation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 8
3.2 Connections ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 9
4. Operation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 10
4.1 The screen change and function by switch operation ・・・・・・・・・・・・・・・・・・・・・・・・・ 11
4.2 The kind of display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 12
4.2.1 Measurement display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 12
4.2.2 Alarm detection display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14
4.2.3 Setting display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 16
4.3 Operation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 17
4.3.1 The main monitor display-element change ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 17
4.3.2 Phase (line) display change ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 17
4.3.3 Harmonic measurement display change ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 18
4.3.4 Watt-hour enlarged display ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 18
4.3.5 Setting value check ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 19
4.3.6 Setting mode ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 20
4.3.7 Reset ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 21
5. Setting
5.1 Function table ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 24
5.2 Setting table ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 29
5.3 Setting in detail explanation ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 37
5.3.1 Setting mode 1 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 37
5.3.2 Setting mode 2 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 46
5.3.3 Setting mode 3 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 57
6. Specification
6.1 Specification and intrinsic error ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 61
6.2 Specification, Performance ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 65
6.3 Option ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 67
7. Maintenance and check
7.1 Trouble shooting ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 69
7.2 Test ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 69
Appendix table 1

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1. Product outline
1.1 Usage of product
This single unit can measure and monitor demand current ×3, voltage ×3, current ×3, demand active power,
active power, reactive power, power factor, frequency, watt-hour, var-hour, harmonic (voltage, current).
From a low voltage circuit to a high voltage circuit, it is adapted for various usages, such as a measurement monitor
of a receiving circuit, an energy conservation power monitor, a demand current measurement monitor, and a harmonic
monitor.
The intensive monitor united with the system is made in an addendum of analog output and a pulse output.
1.2 Features of product
Input circuit can be selected by setting from 2VT,3CT and 3CT.
Bar graph 1 measurement and digital 4 measurement are displayed simultaneously.
Analog output 4 circuit and contact-output 2 circuit can be taken out. (Option)
A contact output can be selected from a pulse output, an alarm output, and a CPU error output.
(Please designate it during order.) And, an output factor can be selected by setting.
Two external operation inputs are possible (option). And, selection of reset input and a display change input
is possible at setting.
Power supply is AC85 to 264V,DC80 to 143V (for both AC and DC uses).
The mounting method of this unit is compatible with the mounting method of conventional 110 square mechanical meter.
This unit is mounted at 2 diagonal points.
Integrated value of Wh and varh can indicate expansion to 3 decimal places.
Analog output is with a lower limit limiter.
Tidal current measurement (output 2 quadrant) change is possible for var and cosφ.
Backlight function is equipped. Selection of backlight on, backlight off, and auto backlight off and setting
of brightness are possible. Automatic turning off the lights at the time of no operation can be set.
LED:White.
The product with analog output can be selected from between analog output insulation type and the analog output
no insulation type. (Please specify at the time of an order.)

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2. The name and function of each part
This switch resets various alarms.
And, in the maximum and the minimum measurement
display, it is used as a switch that resets the
maximum and the minimum value.
In setting mode, it is used as a switch to which
a setting item is shifted.
Bar graph display
The measurement value of the main
monitor is indicated by the analog.
(Bar graph display of the measurement
value of sub-monitor is also possible.)
Digital display
Measurement monitor can watch
4 elements at the same time.
・Main monitor
・Sub-monitor (Right)
・Sub-monitor (Center)
・Sub-monitor (Left)
SET
The switch from which integrated
value of the amount of electric
power is switched to normal
display (5 digits of integer) and
expansion indication (integer 2 digits
and 3 decimal places) variously.
If it is not operated for 10 minutes after
a display change, it will usually return
to a display. Also used as switch which
changes to setting mode.
If it continues pushing 3 seconds or more,
it will change to setting mode.
In setting mode, it is used as a switch that
determines a set point.
RESET/
SHIFT
Scale markings
Scale markings is automatically set in
a measurement range.
Unit display
Unit display is automatically set in a
measurement range.
Upper limit (or lower limit) setting index
An upper limit (or lower limit) set point
is displayed.
Multiplying factor display
Multiplying factor is displayed at the
time of an Wh and varh display.
MODE
The switch to which general measurement display (usually) and the
harmonic measurement (voltage and current) display are changed.
In set mode, it is used as a switch that changes a setting item.
DISPLAY
This is a switch which changes the
phase (line) display of current
(voltage).
If it is not operated for 10 minutes after
a display change, it returns to the original
phase (line) display. In setting mode, it
is used as a switch that terminates setting
mode.
The switch to which measurement displays
element of main monitor is changed.
If it is not operated for 10 minutes after a display
change, it returns to the original measurement display
factor. In set mode, it is used as a switch that
changes a setting value.
MAX/MIN
The switch to which general measurement display (usually)
and the maximum minimum measurement display are changed.
+ -

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Retaining stopper
(1) (2)
3. Preparation
3.1 Installation
Mount the unit by the attached M5 nuts to a panel of thinner than 10mm, referring to the following external
dimensions drawing and panel cutout. Fasten these nuts with tightening torque 2.0 to 2.5N・m.
● Dimension diagram
(1) Multi-meter
● Caution on handling
Mount the LCD to obtain an optimum angle, since the contrast changes according to the monitoring angle.
(1) For upper case installation (2) For lower case installation
● Installation
(1) A product is put in a cut hole of a panel from a front.
A body is inserted until it exceeds retaining stopper
of the lower base.
(2) Please fix a product certainly with attached M5
flange nut for installation.
Please give a tightening torque as 2.0 to 2.5N・m.

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3.2 Connections
Please perform connection after referring to the following wiring diagram.
Connection drawing (8)
(1) 3φ3W (2VT,3CT) (2) Current input 3φ3W (3CT)
Note(5) Analog output, contact output, external operation input is an option.
Note(6) Can change to external reset function or external display change function by setting.
Note(7) Can choose the contact output among the pulse output, the alarm output, the CPU error output.
(Designation)
・Combination of contact output
Contact output 1 Contact output 2
Pulse+Alarm Pulse output Alarm output
Alarm×2 Alarm output 1 Alarm output 2
Pulse×2 Pulse output 1 Pulse output 2
Pulse+CPU error Pulse output CPU error output
Alarm+CPU error Alarm output CPU error output
Note(8) In case of low-voltage circuit, secondary side grounding of VT and CT is unnecessary.
And, VT is unnecessary in case it used direct 110V or 220V.
Caution on connection
(1) Mount the terminal cover without fail for safety after the end of connections.
(2) Separate the input wiring and output wiring from each other without fail, and take a preventive measure against
malfunction due to external noises.
(3) Connect the grounding terminal E (No. 7 terminal) to the ground without fail for enhancing the shield effect.
Keep the grounding resistance between the grounding terminal and the ground to be lower than 100Ω.
(4) Keep a distance of more than 30cm between this unit and the circuit breaker as well as between this unit and the
relay contact signal line.
(5) No protection is necessary for this unit even if the transmission line may be affected by an induced lightning
surge or the like when transmitting an analog output to the receiver. Mount an about 500V arrester or the like
between the line surge protector and the ground as well as between the transmission line and the ground on the
receiver side for the purpose of protecting the devices on the receiver side.
(6) When connecting an inductive load to the pulse output and alarm output, it is recommended to install a surge killer
externally. If no surge killer is mounted, the contact life may shorten.
ANALOG OUTPUT 1
ANALOG OUTPUT 2
CONTACT OUTPUT 1
ANALOG OUTPUT 4
CONTACT OUTPUT 2
ANALOG OUTPUT 3
VT
UVW
EXT.INPUT 1
5
( )
EXT.INPUT 2
( )
6
AUX.SUPPLY
LOAD
CT
UVW
EXT.INPUT 1
EXT.INPUT 2
( )
7
( )
6
( )
5
5
( )
LOAD
CT
AUX.SUPPLY
ANALOG OUTPUT 3
CONTACT OUTPUT 2
CONTACT OUTPUT 1
ANALOG OUTPUT 4
( )
7
( )
5
ANALOG OUTPUT 2
ANALOG OUTPUT 1

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4. Operation
The function of switch
Switch Function
SET
The integrated value of electric energy is changed to the usual display and an enlarged display.
If it continues pushing 3 seconds or more, it will change to setting mode.
In setting mode, it is used for the determination of a set point.
RESET/SHIFT Various kinds of alarms are reset. The maximum value and the minimum value are reset in the maximum
minimum measurement display. In setting mode, it is used for movement of a setting item.
MODE The usual general measurement display and harmonic measurement (voltage, current) display are changed.
In setting mode, it is used for the change of a setting item.
MAX/MIN The usual measurement display and maximum value or minimum value display are changed.
+ , - The measurement display element of the main monitor is changed.
In setting mode, it is used for change of a set point.
DISPLAY A phase (between lines) display of current (voltage) is changed. Used in case it terminates setting
mode. And, it is used in case it returns the display combination of a measurement factor.
Convenient functions
(1) In case a measurement change or a phase change is performed and the original screen composition is not clear
anymore,
DISPLAY
is pushed for more than 3 seconds or it's no operation for 10 minutes and returns to original
screen structure.
(2) Even if it stops operation with setting mode, it returns to the display mode in 10 minutes.
7 segment displays
This product shows the guidance in various setting using 7 segment displays besides a display of a measurement value.
A digital readout and 7 segment displays corresponding to each alphabet are shown in the following.
A B(b) C D(d) E F G H I J K L M
No
display
No
display
N(n) O(o) P Q(q) R(r) S T(t) U(u) V W X Y(y) Z
No
display
0 1 2 3 4 5 6 7 8 9
Term
(1) Range
Measuring range of each measurement
① Voltage range:Measuring range of voltage measurement (Pimary voltage value for 0 to 150V / 0 to 300V)
② Current range:Measuring range of current measurement (Pimary current value for 0 to 5A / 0 to 1A)
③ Active power range / reactive power range:Active power / reactive power measurement range (Active and
reactive power values [VT ratio × CT ratio] depending on voltage range and current range)
④ Power factor range:Power factor measurement range
⑤ Frequency range:Frequency measurement range
(2) Intrinsic sensitivity
Display specific sensitivity:Maximum scale value
that can be changed with the range set to 100%.
Output specific sensitivity:Maximum output value
that can be changed with the range set to 100%.
(3) Full scale
Maximum scale value for bar graph display
(4) Power receiving / Power transmission
The multimeter measures power receiving (+ power) and power transmission (- power) depending on the direction
of the current flowing through the current transformer.
+ power
Current
direction
Multi-meter
CT - power
Multi-meter
CT
Power receiving
(+ power) Power transmission
(- power)
Image of power receiving / power transmission
Current
direction

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4.1 The screen change and function by switch operation
This product changes various screens by switch operation. Here, the change step of the screen by switch operation
is explained.
● Operation at power-on
The startup screen (display of product specifications and software version) is displayed for 2 seconds after
the power on. After that, the display mode (measurement display screen) is automatically entered.
The maximum and minimum values for each measurement are not updated on the start up screen.
The analog output operates during the start up screen.
Start up screen
(2 seconds)
Power-on
Display mode
(Measurement display screen)
The start up screen
displays the product
specifications and
software version for
2 seconds.
Voltage harmonic
measurement
display
General
measurement
display
Maximum / Minimum reset
(All factor)
Instantaneous measurement
Display mode
Current harmonic
measurement
display
MODE
SET
SET
or no operation,
10 minutes
Electric energy
integrated value
enlarged display
SET
MODE
SET
MODE
All alarm
reset
Maximum and the minimum
measurement dis
p
la
y
Current harmonic
measurement maximum
display
MODE
MODE
MAX/MIN
General measurement
maximum and minimum
display
Maximum / Minimum reset
(Display factor)
DISPLAY
Set point check
Main monitor
display element
chan
g
e
No operation,
10 minutes
Phase (line)
display change
Setting mode 1
Setting mode 2
Setting mode 3
MODE
Bar graph
display factor
change
Bar graph
display factor
change
No operation,
10 minutes
Voltage harmonic
measurement maximum
display
RESET/SHIFT
Push
1 second
RESET/SHIFT
and
+
Push 1 second
RESET/SHIFT
Push 1 second
SET
Push 3 seconds
SET
and
RESET/SHIFT
Push 3 seconds
RESET/SHIFT
and
-
SET
and
DISPLAY
Push 3 seconds
+
,
-
DISPLAY or
no operation,
10 seconds
DISPLAY or
no operation,
10 minutes
DISPLAY or
no operation,
10 minutes
DISPLAY or
no operation,
10 minutes

SQLC-220-086
12
4.2 The kind of display
4.2.1 Measurement display
The measurement value display has the three following types of displays.
The change of the measurement display element of the main monitor by switch operation and the change of the
phase / line display of current / voltage is possible (temporarily).
In a general measurement display, if switch operation is not performed for 10 minutes after changing a display
element, it returns to the original measurement display element automatically.
① General measurement display
Measurement factors, such as current, voltage,
and active power, are displayed.
The measurement value of four factors is
displayed at the maximum.
Setting which always displays a measurement
factor is possible. And, it is possible to
change to a display of the maximum value and the
minimum value, about the measurement factor
which performs holding of the maximum value and
the minimum value by switch operation.
These maximum values and the minimum value are
reset by switch operation (it updates to the
instantaneous value at the time).
In addition, as for the maximum value and the
minimum value, power supply reset is not cleared
either. And, this display is held by even after
10 minutes of switch no operation.
・The example of a measurement display of each measurement factor (Main monitor) ・・・ Harmonic measurement is excluded.
Measurement
factor Example of display Note Measurement
factor Example of display Note
Voltage
Current
Frequency
Demand current
“DEMAND”
display
Watt-hour
(Power
receiving)
Watt-hour
(Power
transmission)
“-”
display
Active power
Demand active
power
“DEMAND”
display
Reactive
power
LAG
or
LEAD
display
Power factor
LAG
or
LEAD
display
General measurement display
A(V) display
V(UV)
display
General measurement maximum
and minimum display
Instant
display
Range of minimum to maximum
is displayed in bar graph.
Minimum
display
W
display
Wh
display
Maximum
display

SQLC-220-086
13
Measurement
factor Example of display Note Measurement
factor Example of display Note
var-hour
(Power
receiving,
LAG)
“LAG”
display
var-hour
(Power
receiving,
LEAD)
“LEAD”
display
var-hour
(Power
transmission,
LAG)
“LAG” and
”-”
display
var-hour
(Power
transmission,
LEAD)
“LEAD”
and ”-”
display
② Current harmonic measurement display
Displays measurement factors such as current distortion, harmonic content, and harmonic effective value.
The measurement value of three factors is displayed at the maximum.
About sub-monitor (center) and sub-monitor (right), it is possible to change to the factor that always indicates
by measurement. And, it is possible to change to a display of the maximum value by switch operation.
These maximum values can be reset by switch operation (it updates to the instantaneous value at the time).
In addition, as for the maximum value, even power supply reset is not cleared. And, a display is held, even after
elapsing for 10 minutes without operating a switch.
Measurement display element)
Main monitor :Distortion factor
Sub-monitor (Left) :5th conversion or harmonic order (n)
Sub-monitor (Center):Harmonic 5th conversion content or harmonic nth content (n=3,4,5,7,9,11,13,15)
Sub-monitor (Right) :Fundamental wave effective value,5th harmonic conversion effective value or harmonic,
nth effective value (n=3,4,5,7,9,11,13,15)>
③ Voltage harmonic measurement display
Displays measurement factors such as voltage distortion, harmonic content, and harmonic effective value.
About a function, it is the same as a current harmonic measurement display.
Current harmonic measurement display. Current harmonic measurement maximum display.
Voltage harmonic measurement display. Voltage harmonic measurement maximum display.
Distortion-factor maximum
display
Effective-value maximum
display
Distortion-factor display
Order display
Content display
Effective-value display
Order display
Content maximum
display
Distortion-factor display
Order display
Content display
Effective-value display Distortion-factor maximum
display
Order display
Content maximum
display
Effective-value maximum
display

SQLC-220-086
14
4.2.2 Alarm detection display
The alarm value setting is a possible measurement factor (demand current and harmonic, etc.), it displays in case
an input exceeds a set point.
Besides the usual measurement display, the detected factor is displayed on a screen upper case.
In addition, in case setting OFF (not use) as measurement factor, it does not detect.
And in the case of with an alarm output option, it is possible to do an alarm output (relay make contact) to the
outside simultaneously with a screen display.
Alarm display possible factor)
Demand current, Demand power, Harmonic distortion factor (current, voltage),
Harmonic 5th conversion content (current, voltage),
Harmonic nth content (current, voltage n=3,
4,
5,
7,
9,
11,
13,
15), Voltage
General measurement display. General measurement display (Alarm detection)
・The example of a display at the case of the detection in each alarm factor.
In case the alarm factor is indicating by measurement at the main monitor or the sub-monitor, a measurement
value constitutes a blinking display.
The displays after an alarm return.
In case a return method is automatic reset setting:Returns to the usual measurement display.
In case a return method is manual reset setting
:A detection display and an alarm output hold (in case setting as an alarm output of applicable factor).
The return in this case needs alarm reset operation. Please refer to "4.3.7 Reset" about alarm reset.
Alarm factor Example of a display Alarm factor Example of a display
Demand
current
Upper
limit
(H)
Detection display
Alarm setting value
Voltage
harmonic
5th
conversion
content
Upper
limit
(H)
Alarm setting Detection
Value display
Setting as 5th conversion content
of bar graph (Distinguishes in an
under bar)
Alarm
detection
Alarm detection
(Demand current upper limit )

SQLC-220-086
15
Alarm factor Example of a display Alarm factor Example of a display
Demand
active
power
Upper
limit
(H)
Detection display
Alarm setting value
Voltage
harmonic
nth
content
Upper
limit
(H)
Alarm setting Detection
Value display
Setting as 11th content of bar graph
(Distinguishes in under bar)
Current
harmonic
5th
conversion
content
Upper
limit
(H)
Setting as 5th conversion content
of bar graph
(Distinguishes in under bar)
Voltage
distortion
factor
Upper
limit
(H)
Alarm setting Detection
Value display
Current
harmonic
<高調波>
nth content
<n 次>
Upper
limit
(H)
<
上限
>
Alarm setting Detection
value display
Setting as 3th content of bar graph
(Distinguishes in under bar)
Voltage
Upper
limit
(H)
<
上限
>
Detection High-alarm (H)
display set point
Low-alarm (L) set point
Current
distortion
factor
Upper
limit
(H)
Alarm setting Detection
value display
Voltage
Lower
limit
(L)
Detection High-alarm (H)
display set point
Low-alarm (L) set point

SQLC-220-086
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4.2.3 Setting display
The display of various setting. There are three types of setting modes according to the contents of a setting.
Refer to "5. Setting" for the operation in setting mode, and the detailed contents of a setting.
① Setting mode 1
Setting of a measurement display element, an
alarm output, and an alarm value is mainly
performed.
And, an alarm output can be tested in this
setting mode.
Setting mode 1 (No.111 Display pattern)
② Setting mode 2
Setting of measurement range, analog output,
pulse output, and measurement display ON/OFF
is mainly performed.
And, initialization of a setting value and
reset of watt-hour integrated value can be
performed in this setting mode.
Setting mode 2 (No.211 Voltage range)
③ Setting mode 3
Setting of an input circuit and tidal current
measurement is mainly performed.
And, analog output can be adjusted in this
setting mode.
Setting mode 3
(No.311 Input circuit phase line change)
New setting
Current setting
Setting No.
Setting factor
New setting
Current setting
Setting No.
New setting
Current setting
Setting No.

SQLC-220-086
17
4.3 Operation
4.3.1 The main monitor display element change
The measurement display element of the main monitor is changed. The change is performed by + -.
In addition to general measurement display, this operation can be performed also (harmonic measurement display,
maximum display and minimum display). However, in a harmonic measurement display, a sub-monitor changes with a
harmonic order. (The main monitor is distortion factor fixation.)
After changing a measurement display element, if a switch is not operated for 10 minutes, it will return to the
original measurement display element automatically.
In a harmonic measurement display and maximum display and minimum display, even if a switch is not operated for
10 minutes, it does not return to the original display.
Setting can perform same operation in external operation input. Please refer to "5.3.2 Setting mode 2, (4) external
operation input setting" about the setting method. Please refer to "6.3 Option specification" about external
operation input.
Main monitor A(U) Main monitor A(V) Main monitor A(W)
(Default display)
4.3.2 Phase (line) display change
Switches the current or voltage phase and line display. (Everything which is being indicated)
The change is performed by
DISPLAY
. This operation can be performed also except a general measurement display
(harmonic measurement display, maximum display and minimum display).
In addition, after changing a phase (line) display, if a switch is not operated for 10 minutes, it will return
to the original phase (line) display automatically.
In a harmonic measurement display and maximum display and minimum display, even if a switch is not operated for
10 minutes, it does not return to the original display.
Setting can perform same operation in external operation input. Please refer to "5.3.2 Setting mode 2, (4)
external operation input setting" about the setting method. Please refer to "6.3 Option specification" about
external operation input.
A(V),V(UV) (Default display) A(W),V(VW) A(U),V(WU)
DISPLAY
A(V) display No operation 10 minutes
DISPLAY
DISPLAY
W
display
V(UV)
display
Wh
display
+
-
+
- +
-
+
-
A(V) display
W
display
No operation 10 minutes
V(UV)
display
Wh
display

SQLC-220-086
18
4.3.3 Harmonic measurement display change
General measurement display and a harmonic measurement display are changed. The change is performed by
MODE
.
Whenever it pushes a switch, it changes general measurement display → Current harmonic measurement display →
Voltage harmonic measurement display → General measurement display.
This operation can also perform the maximum display and minimum display.
In that case, it changes in order of general measurement maximum and the minimum display → Current harmonic
measurement maximum display → Voltage harmonic measurement maximum display → General measurement maximum and the
minimum display.
In addition, about this operation, even if it does not do switch operation for 10 minutes, it does not return to
the original display.
General measurement display. Current harmonic measurement display. Voltage harmonic measurement display.
4.3.4 Watt-hour enlarged display
In case electric energy is being displayed by the general measurement display, an electric energy display is usually
changed to a display (5 digits of integers), and an enlarged display (2 digits integer + 3 decimal places).
The change is performed by
SET
.
After an enlarged display, if a switch is not operated for 10 minutes, it returns to the usual display automatically.
<Caution> If it continues pushing
SET
3 seconds or more, it will become the setting mode 1. (An electric energy
display does not change)
General display Enlarged display
MODE
A(V) display
V(UV)
display
MODE MODE
Order
display
Distortion-factor display Distortion-factor display
W
display
Wh
display
Content
display
Effective-value
display
Order
display
Content
display
Effective-value
display
No operation 10 minutes
SET
SET
Wh enlarged display
Wh display

SQLC-220-086
19
4.3.5 Setting value check
Voltage range (VT ratio), current range (CT ratio), and an alarm output set point are checked.
Check by
RESET/SHIFT
and
-
pushed simultaneously. The change of a set point is carries out by
+
and
-
.
In addition to general measurement display, this operation can be performed also (harmonic measurement display,
maximum display and minimum display).
DISPLAY
is pushed to return to the original measurement display.
And, if a switch is not operated for 10 seconds after a set point check, it will return to the original measurement
display automatically.
General display
Set point check
Voltage range (VT ratio)
No operation
10 minutes
+
-
Current
range
(CT ratio)
+
-
-
+
-
+
-
+
-
+
VT ratio
Factor display Input rating
voltage display
Alarm output 2
Time interval,
Contact delay
time
Alarm output 2
factor,
Return method
Alarm output 1
Time interval,
Contact delay
time
Alarm output 1
factor ,
Return method
DISPLAY
RESET/SHIFT
and
-
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