Unit UTE310 User manual

Quick Guide
UTE310 Digital Power Meter

Quick Guide UTE310 Digital Power Meter
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Copyright
Copyright is owned by Uni-Trend Technology (China) Co., Ltd.
Trademark
UNI-T is the registered trademark of Uni Trend Technology (China) Co., Ltd.
File Version
UTE31020230801-V1.00
Statements
UNI-T products are protected by patent rights in China and foreign countries, including issued and
pending patents.
UNI-T reserves the rights to any product specification and pricing changes.
UNI-T reserves all rights. Licensed software products are properties of Uni-Trend and its subsidiaries
or suppliers, which are protected by national copyright laws and international treaty provisions.
Information in this manual supersedes all previously published versions.

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1. Safety Instruction
This section contains information and warnings that must be followed to keep the instrument operating
under safety conditions. In addition, user should also follow the common safety procedures.
Safety Precautions
Warning
Please follow the following guidelines to avoid possible electric shock and risk to
personal safety.
Users must follow the following conventional safety precautions in operation,
service and maintenance of this device. UNI-T will not be liable for any personal
safety and property loss caused by the user’s failure to follow the following safety
precautions. This device is designed for professional users and responsible
organizations for measurement purposes.
Do not use this device in any way not specified by the manufacturer. This device is
only for indoor use unless otherwise specified in the product manual.
Safety Statement
Warning
“Warning” indicates the presence of a hazard. It reminds users to pay attention to a
certain operation process, operation method or similar. Personal injury or death may
occur if the rules in the “Warning” statement are not properly executed or observed.
Do not proceed to the next step until you fully understand and meet the conditions
stated in the “Warning” statement.
Caution
“Caution” indicates the presence of a hazard. It reminds users to pay attention to a
certain operation process, operation method or similar. Product damage or loss of
important data may occur if the rules in the “Caution” statement are not properly
executed or observed. Do not proceed to the next step until you fully understand and
meet the conditions stated in the “Caution” statement.
Note
“Note” indicates important information. It reminds users to pay attention to
procedures, methods and conditions, etc. The contents of the “Note” should be
highlighted if necessary.
Safety Sign
Danger
It indicates possible danger of electric shock, which may cause
personal injury or death.
Warning
It indicates that you should be careful to avoid personal injury or
product damage.
Caution
It indicates possible danger, which may cause damage to this
device or other equipment if you fail to follow a certain procedure
or condition. If the “Caution” sign is present, all conditions must
be met before you proceed to operation.
Note
It indicates potential problems, which may cause failure of this
device if you fail to follow a certain procedure or condition. If the

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“Note” sign is present, all conditions must be met before this
device will function properly.
AC
Alternating current of device. Please check the region’s voltage
range.
DC
Direct current device. Please check the region’s voltage range.
Grounding
Frame and chassis grounding terminal
Grounding
Protective grounding terminal
Grounding
Measurement grounding terminal
CAT 0
This instrument is suitable for measurements on circuits that are
not directly connected to the grid power supply and circuits that
are specially protected to be powered from the (internal) grid. In
the latter case, the transient stresses are different, and the
instrument should be used for this type of measurement to
ensure that the peak transient voltage is less than 3000 V.
CAT Ⅰ
Secondary electrical circuit connected to wall sockets through
transformers or similar equipment, such as electronic
instruments and electronic equipment; electronic equipment
with protective measures, and any high-voltage and low-voltage
circuits, such as the copier in the office.
CAT Ⅱ
Primary electrical circuit of the electrical equipment connected
to the indoor socket via the power cord, such as mobile tools,
home appliances, etc. Household appliances, portable tools (e.g.
electric drill), household sockets, sockets more than 10 meters
away from CAT III circuit or sockets more than 20 meters away
from CAT IV circuit.
CAT Ⅲ
Primary circuit of large equipment directly connected to the
distribution board and circuit between the distribution board and
the socket (three-phase distributor circuit includes a single
commercial lighting circuit). Fixed equipment, such as multi-
phase motor and multi-phase fuse box; lighting equipment and
lines inside large buildings; machine tools and power distribution
boards at industrial sites (workshops).
CAT Ⅳ
Three-phase public power unit and outdoor power supply line
equipment. Equipment designed to “initial connection”, such as
power distribution system of power station, power instrument,
front-end overload protection, and any outdoor transmission
line.
Certification
CE indicates a registered trademark of EU
Certification
UKCA indicates a registered trademark of UK
Waste
This product complies with the marking requirements of WEEE
Directive (2002/96/EC). This additional label indicates that this

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electrical / electronic product must not be discarded in
household waste.
EFUP
This environment-friendly use period (EFUP) mark indicates that
dangerous or toxic substances will not leak or cause damage
within this indicated time period. The environment-friendly use
period of this product is 40 years, during which it can be used
safely. Upon expiration of this period, it should enter the
recycling system.
Safety Requirements
Warning
Preparation
before use
Please connect this device to AC power supply with the power cable provided.
The AC input voltage of the line reaches the rated value of this device. See the
product manual for specific rated value.
The line voltage switch of this device matches the line voltage;
The line voltage of the line fuse of this device is correct.
Check all
terminal rated
values
Please check all rated values and marking instructions on the product to avoid fire
and impact of excessive current. Please consult the product manual for detailed
rated values before connection.
Use the power
cord properly
You can only use the special power cord for the instrument approved by the local
and state standards. Please check whether the insulation layer of the cord is
damaged or the cord is exposed, and test whether the cord is conductive. If the
cord is damaged, please replace it before using the instrument.
Instrument
Grounding
To avoid electric shock, the grounding conductor must be connected to the
ground. This product is grounded through the grounding conductor of the power
supply. Please be sure to ground this product before it is powered on.
AC power
supply
Please use the AC power supply specified for this device. Please use the power
cord approved by your country and confirm that the insulation layer is not
damaged.
Electrostatic
prevention
This device may be damaged by static electricity, so it should be tested in the anti-
static area if possible. Before the power cable is connected to this device, the
internal and external conductors should be grounded briefly to release static
electricity. The protection grade of this device is 4 kV for contact discharge and 8
kV for air discharge.
Measurement
accessories
Measurement accessories are of lower class, which are definitely not applicable to
main power supply measurement, CAT II, CAT III or CAT IV circuit measurement.
Use the input /
output port of
this device
properly
Please use the input / output ports provided by this device in a properly manner.
Do not load any input signal at the output port of this device. Do not load any signal
that does not reach the rated value at the input port of this device. The probe or
other connection accessories should be effectively grounded to avoid product
damage or abnormal function. Please refer to the product manual for the rated
value of the input / output port of this device.

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Power fuse
Please use power fuse of specified specification. If the fuse needs to be replaced,
it must be replaced with another one that meets the specified specifications by
the maintenance personnel authorized by UNI-T.
Disassembly
and cleaning
There are no components available to operators inside. Do not remove the
protective cover.
Maintenance must be carried out by qualified personnel.
Service
environment
This device should be used indoors in a clean and dry environment with ambient
temperature from 0℃to 40℃.
Do not use this device in explosive, dusty or humid air.
Do not operate
in humid
environment
Do not use this device in a humid environment to avoid the risk of internal short
circuit or electric shock.
Caution
Abnormality
If this device may be faulty, please contact the authorized maintenance personnel
of UNI-T for testing. Any maintenance, adjustment or parts replacement must be
done by the relevant personnel of UNI-T.
Cooling
Do not block the ventilation holes at the side and back of this device;
Do not allow any external objects to enter this device via ventilation holes;
Please ensure adequate ventilation, and leave a gap of at least 15 cm on both sides,
front and back of this device.
Safe
transportation
Please transport this device safely to prevent it from sliding, which may damage
the buttons, knobs or interfaces on the instrument panel.
Proper
ventilation
Poor ventilation will cause the device temperature to rise, thus causing damage to
this device. Please keep proper ventilation during use, and regularly check the
vents and fans.
Keep clean
and dry
Please take actions to avoid dust or moisture in the air affecting the performance
of this device. Please keep the product surface clean and dry.
Note
Calibration
The recommended calibration period is one year. Calibration should only be carried
out by qualified personnel.
Warning
The UTE310 Digital Power Meter only supports measurement of power supplies under CAT II (600V) type
overvoltage conditions, so please use the instrument strictly in accordance with this measurement
environment.

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2. Introduction
UTE310 is a high precision and high performance digital power meter. The current measurement range is
50uA～20A, which meets the requirement of production, test and R&D.
UTE310 digital power meter is suitable for the power measurement from production line to R&D field.
The measurement of DC and single phase two-wire system;
The measurement of the household appliances with high power, such as the air condition and
the induction stave;
The measurement of the office equipment, such as the display and the printer;
The measurement of the energy equipment, such as LED, the power supply and the battery;
The measurement of energy-saving performance of industrial equipment, such as the
frequency converter and the large air condition.
2.1 Features

Oscillography
Observe the change of the measured signal in peak-to peak and waveform.

Basic power parameter measurement
Measure the basic power parameters of voltage, current, power factor, and
support for measuring the AC and DC signals.

Harmonic measurement
Support the harmonic measurement of IEC61000-4-7, which can analysis the
harmonic component in signal, such as voltage, current, power and phase angle.
The maximum measured results of 50 harmonic can be displayed.

Mathematical operation
The measured parameters can be added, subtracted, multiplied, and divided.

Current integral and power integral
The integration of q, q+, q-, WP, WP+, WP-, which can be set to continuous
integral or normal integral mode.

Multiple interfaces
The user can remote control the instrument via USB, RS-232/GPIB and LAN
interfaces.

Automatic range

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This function can automatically select or change the range within the specified
range.

Load and access the external memorizer
The instrument can connect the external memorizer to save the data of voltage, current, power and harmonic. And it
can also export and import the configuration parameter of the instrument.

Built-in digital filter
The instrument has line filter and frequency filter function. The user can enable the line filter or frequency filter to
restrain unwanted noise and harmonic components during fundamental measurements.
PC analysis software
The software is used to remote control and set the UTE 310 digital power meter, for acquiring,
displaying, analyzing and saving the measured value, harmonic and waveform data.
Holding the maximum value
RMS/Peak of voltage and current, active power P, relative power Q and apparent power S.
Sampling frequency
The sampling frequency of the UTE310 is 1MHz.
Bandwidth
The bandwidth of the UTE310 is DC, 0.1Hz～300kHz.
25μA low current measurement
This function can accurately measure the stand-by power loss of the household appliance.
Input range of wide current sensor
50mV～10V, this sensor can be compatible with more sensors, and is very suitable for the power
consumption measurement of intermittent operation equipment.
Input range of wide current
25uA～20A
The data update interval can up to 0.1s
UTE310 digital power meter can freely set the data update interval: 0.1s, 0.25s, 0.5s, 1s, 2s, 5s, 10s,
20s, Auto, to meet the measurement needs of different frequency signals.
2.2 Technical Index
Model
UTE310
Bandwidth
DC, 0.1Hz～300kHz
Sampling Rate
1MHz
Voltage Range
CF=3
CF=6 or 6A
15V
7.5V

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30V
15V
60V
30V
150V
75V
300V
150V
600V
300V
Voltage Resolution
0.001V/0.01V
Current Range
CF=3
CF=6 or 6A
5mA
2.5mA
10mA
5mA
20mA
10mA
50mA
25mA
100mA
50mA
200mA
100mA
500mA
250mA
1A
0.5A
2A
1A
5A
2.5A
10A
5A
20A
10A
Current Resolution
0.0001mA/0.001mA/0.01mA/0.1mA/1mA
Ext1 Sensor CH Range
CF=3
CF=6 or 6A
50mV
25mV
100mV
50mV
200mV
100mV
500mV
150mV
Ext1 Sensor CH Resolution
1uV/10uV/10uV
Ext2 Sensor CH Range
CF=3
CF=6 or 6A
1V
0.5V
2V
1V
2.5V
1.25V
5V
2.5V
10V
5V
Ext2 Sensor CH Resolution
100uV/1mV
Frequency Measurement
Range
Data Update Interval
Frequency
0.1 S
20Hz≥f≤300kHz
0.25 S
10Hz≥f≤300kHz
0.5 S
5.0Hz≥f≤300kHz
1 S
2.0Hz≥f≤300kHz
2 S
1.0Hz≥f≤300kHz

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5 S
0.5Hz≥f≤300kHz
10 S
0.2Hz≥f≤300kHz
20 S
0.1Hz≥f≤300kHz
Auto
0.1Hz≥f≤300kHz
Power Range
75mW～12000W
Waveform Display
Display the waveform of U/I
Line Filter
√
Frequency Filter
√
Harmonic Measurement
1～50 times
Integrating Function
Average active power integral, current integral
Mathematical Operation
√
DA Output and Control
√
Communication Interface
RS-232/GPIB, LAN, USB
2.3 Application System
The application system chart of the UTE310 digital power meter is shown in the following figure.
2.4 Environmental Condition
UTE310 digital power meter can only use indoors and non-condensing area, the general environmental
requirements are shown as below table.
Environmental Condition
Operating Environment
5℃～40℃，20%～80%RH（non-condensing）
Accuracy guaranteed
temperature and humidity
temperature
23℃±5℃，30%～75% R.H.
Storage temperature
-10℃～50℃, non-condensing below 80% R.H.
Operating altitude
≤2000 meters

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3. Getting Start
This chapter is to introduce the precautions and preparation for using the UTE310 digital power meter for
the first time.
3.1 General Inspection
Before using a new UTE310 digital power meter, it is recommended that you follow the following steps
to check the instrument.
3.1.1 Check for damage caused by transportation
If you find that the packing carton or the protective foam panel is badly damaged, contact your UNI-T
distributor for assistance.
3.1.2 Checking Accessories
Checking the packing list whether is damaged or missing. Contact your UNI-T distributor for assistance
if has any damage or loss.
3.1.3 Check the Instrument
Please contact your UNI-T distributor for assistance if you find the appearance of the instrument
is broken, or the instrument does not work properly, or fails the performance test.
If the instrument is damaged due to transportation, retain the packaging and notify the shipping
department and contact your UNI-T distributor for assistance.
3.1.4 Checking the Handle
The instrument’s handle can adjust to four positions by appropriate strengths. Hold the handle and pull
to two sides to remove it. Adjusting the handle to the position as shown in the following figure.
1.
Original position
2.
Testing position
3.
Removal position
4.
Lifting position
If the instrument’s handle cannot adjust to four positions as above, please contactyour UNI-T distributor
for assistance.

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3.2 Before Use
Before using the instrument, do a quick inspection to check that the instrument is operating properly.
Please follow the following steps.
3.2.1 Key Inspection
Check whether the key can be pressed and popped up normally. If the key cannot operate
functionally, contact your UNI-T distributor.
3.2.2 Boot-up Inspection
The power supply voltage of the power meter is 100V~240V and the frequency is 50/60Hz. Connect
the power meter to the power supply by using the power cable in the accessory or other power cable
that conform to the standard of your country. When the power switch is pressed, the instrument will
turn on. If the instrument fails to power up properly, contact your UNI-T distributor for assistance.
4. Front Panel
This chapter is to introduce the front panel and its key function of the UTE310 digital power meter, as
shown in the following figure.
Front Panel of UTE310
4.1 Key Function on Front Panel
Key
Function
The power switch
ON/OFF: Press one time to turn on the instrument, press it again to shut down the instrument.
Common function key
This indicates the different functions according to the corresponding parameters of the display.

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Up/Down selection key
Use the up/down key to select an item when setting the parameters. For the sake of simplicity, the
up/down keys are indicated by the two buttons [▲] [▼].
Left/Right selection key
Use the left/right key to select an item to the left or right when setting the parameters. It is usually used
to move the editing bit in numerical editing. For the sake of simplicity, the left/right keys are indicated
by the two buttons [ ] [ ].
Enter key
Save the current settings and exit.
Esc key
Exit the current setting page; Return to the previous step
Encoder knob
When editing the numerical value, clockwise rotating the encoder knob to increasing the value,
anticlockwise rotating the encoder knob to decreasing the value;
Second function auxiliary key
Press this key and press other key with the second function to enabling auxiliary function.
General parameter measurements
This function page includes three measurement/display styles, VEW-1, VEW-2 and VEW-3, measuring
total of 24 parameters.
Harmonic measurements
Harmonic measurement and harmonic settings (including harmonic display and mode settings)
Waveform display
Display the waveform of voltage and current.
Integral key
The average active power and current can be integrated.
Lock key
Press this key to disable other keys, long press 1 second to unlock keys.
Voltage settings
Press this key to set the voltage, use “▲,▼”to select the range, and press the “Enter” key to save the
selected range and exit (or wait for 10 seconds to automatically save the settings and exit);
The second function of this key is measurement mode switching, which can switch to DC, RMS or MN.
Current settings
Press this key to set the current, use “▲,▼”to select the range, and press the “Enter” key to save the
selected range and exit (or wait for 10 seconds to automatically save the settings and exit);
The second function of this key is zero calibration.
Max hold
Hold the maximum value, the data is updated only when a measured value that is larger than the value
that has been held.
Data hold
Hold the measured data that test by the input terminal.
Start key
Press this key to starting the integral.

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Stop key
Press this key to pausing the integral. Press the Shift key with this key is to reset the integral or zeroing
the integral.
Single measurement
In data hold, press the Single key to measure one time, the measured data is kept after the
measurement is finished.
Function settings
Press this key to set the synchronous source, line filter, frequency filter, crest factor, data update
interval (SETUP), average filter (AVG), external current sensor input (EXT), VT/CT scale factor (SCALE),
range jump (JUMP), D/A output and control.
System settings
System information (INFO), SET, RS232, IP and USB.
4.2 Key Combination
[Shift + Mode]
Each time the [Shift + Mode] key is pressed, the measurement mode will be switched once, and there are
three measurement modes, DC, RMS, and MN.
[Shift + Cal]
Zero calibration
[Shift +Reset]
Rest the integral
5. Rear Panel
Various interfaces such as voltage and current measurement input terminals, instrument power supply
socket, D/A output and control interface, RS-232/GPIB communication interface, USB communication
interface, LAN Ethernet communication interface, and safety grounding are integrated on the rear panel
structure of the Digital Power Meter as shown below.
Rear Panel of UTE310

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5.1 Rear Panel of UTE310
No.
Picture
Function Description
1
Voltage input terminal
The maximum allowable input voltage is 600V.
2
Current input terminal
The maximum allowable input current is 20A.
3
External current sensor input terminal
The maximum allowable input voltage is 2V when EXT1 is selected. The
maximum allowable input voltage is 10V when EXT2 is selected.
4
RS-232/GPIB communication interface
The default interface is S-232.
5
D/A output and control interface
6
USB communication interface
7
LAN communication interface
8
Anti-theft lock hole
9
Three-wire power socket and fuse
Fuse specification：AC 250V 5A.
11
Safety grounded M4 screw hole

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6. User Interface
This chapter is to introduce the user interface and the parameter of UTE310 digital meter.
6.1 Description of Display Icon
Display Contents
Function Description
U-RANGE 15V /30V /150V /300V /600V
Indicates that the voltage is a fixed range of 15V /30V /150V /300V /600V
respectively (each range is one-half of the current range when CF=6 or 6A).
U-AUTO 15V /30V /150V /300V /600V
Indicates that the voltage is an automatic range of 15V /30V /150V /300V
/600V respectively (each range is one-half of the current range when CF=6
or 6A).
I-RANGE 5mA/10mA/20mA/50mA
/100mA/200mA/500mA/1A/2A/5A/10A/20A
Indicates that the current is a fixed range of 5mA /10mA /20mA /50mA
/100mA /200mA /500mA /1A /2A /5A /10A / 20A (each range is one-half of
the current range when CF=6 or 6A).
I-AUTO 5mA/10mA/20mA/50mA
/100mA/200mA/500mA/1A/2A/5A/10A/20A
Indicates that the current is an automatic range of 5mA/ 10mA /20mA
/50mA /100mA /200mA /500mA /1A /2A /5A /10A / 20A respectively (each
range is one-half of the current range when CF=6 or 6A).
EXT1
Indicates that the current selection is EXT1 (the external current sensor 1).
EXT2
Indicates that the current selection is is EXT2 (the external current sensor
2).
I-RANGE 2.5V/5V/10V
Indicates that the current is fixed range 2.5V /5V /10V of EXT1 respectively
(each range is one-half of the current range when CF=6 or 6A).
I-AUTO 2.5V/5V/10V
Indicates that the current is automatic range 2.5V /5V /10V of EXT1
respectively 2.5V/ 5V/ 10V (each range is one-half of the current range when
CF=6 or 6A).
I-RANGE
50mV/100mV/200mV/500mV/1V/2V
Indicates that the current is fixed range 50mV/ 100mV/ 200mV/ 500mV/ 1V/
2V of EXT2 respectively. 50mV/100mV/200mV/500mV/1V/2V (each range is
one-half of the current range when CF=6 or 6A).
I-AUTO
50mV/100mV/200mV/500mV/1V/2V
Indicates that the current is automatic range 50mV/ 100mV/ 200mV/
500mV/ 1V/ 2V of EXT2 respectively. 50mV/100mV/200mV/500mV/1V/2V
(each range is one-half of the current range when CF=6 or 6A).
SCALE
Indicates that the scaling transformation is enabled.
L.F
Indicates that the line filter is enabled.
F.F
Indicates that the frequency filter is enabled.
RMS/DC/MN
Indicates that the measurement mode is RMS/DC/MN.
SYNC.OFF
Indicates that the synchronous source is not set.

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SYNC.U
Indicates that the voltage is set as a synchronous source.
SYNC.I
Indicates that the current is set as a synchronous source.
Indicates that the measured voltage is lower than the rated range of 30%.
Indicates that the measured voltage is at the rated range of 30%～130% (not
include 130%) when CF=3;
Indicates that the measured voltage is at the rated range of 30%～260%
(not include 260%) when CF=6 or 6A.
Indicates that the measured voltage is at the rated range of 130%～140%
(not include 140%) when CF=3;
Indicates that the measured voltage is at the rated range of 260%～280%
(not include 280%) when CF=6 or 6A.
Indicates that the measured voltage is at the rated range of 140%～300%
(not include 300%) when CF=3;
Indicates that the measured voltage is at the rated range of 280%～600%
(not include 600%) when CF=6 or 6A.
Indicates that the measured voltage is greater than or equal to the rated
range of 300% when CF=3;
Indicates that the measured voltage is greater than or equal to the rated
range 600% when CF=6 or 6A.
Indicates that the measured current is lower than the rated range of 30%.
Indicates that the measured voltage is at the rated range of 30%～130% (not
include 130%) when CF=3;
Indicates that the measured voltage is at the rated range of 30%～260%
(not include 260%) when CF=6 or 6A.
Indicates that the measured voltage is at the rated range of 130%～140%
(not include 140%) when CF=3;
Indicates that the measured voltage is at the rated range of 260%～280%
(not include 280%) when CF=6 or 6A.
Indicates that the measured voltage is at the rated range of 140%～300%
(not include 300%) when CF=3;
Indicates that the measured voltage is at the rated range of 280%～600%
(not include 600%) when CF=6 or 6A.
Indicates that the measured current is greater than or equal to the rated
range of 300% when CF=3;
Indicates that the measured current is greater than or equal to the rated
range 600% when CF=6 or 6A.

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6.2 Measurement Interface
6.2.1 Common Measurement
Pressing the [Meter] key to enter the common measurement interface. VIEW-1 has four test interfaces, the
first interface displays the voltage (such as RMS voltage, voltage calibration average value, voltage AC
component, voltage DC component, voltage positive peak value, voltage negative peak value); the second
interface displays the current (such as RMS current, current calibration average value, current AC component,
current DC component, current positive peak value, current negative peak value); the third interface displays
the power (such as average active power, apparent power, reactive power, positive peak value of average
active power, negative peak value of average active power, power factor); the fourth interface displays the
frequency, crest factor, phase and synchronizing frequency of measurement parameter.
The four display interfaces can be switched by the [ ] or [ ] key, and each of the measurement
interfaces can also set a parameter as the main display parameter (displayed in blue background with large
font), which can be configured by the [CONFIG] key under the corresponding interface.
VIEW-2 can display multiple parameters at the same time.
Under VIEW-3 display style, mathematical operation can be carried out according to the user's demand,
supporting the display of four areas A, B, C, D. Each area can be set and displayed independently, and the
parameters displayed in A, B area can also be set to be displayed in the C area after arithmetic operation. The
fourth measurement interfaces is shown in the following figure.
VIEW-1
VIEW-2
VIEW-3
VIEW-1 and VIEW-2 displays the measurement parameter. VIEW-3 displays the measurement parameter
and mathematical operation results.
6.2.2 Harmonic Measurement
Pressing the [Harmonic] key to enter the harmonic measurement interface. The harmonic measurement has
two display modes, one is a bar graph (BAR) mode and the other is a list mode (LIST). It can measure the RMS
value/inclusion rate of each harmonic component from 1~50, and can also measure the total harmonic
distortion factor (THD). In the “SET” interface, the calculation formula of THD can be set to IEC or CSA, and
PPL source, harmonic analysis mode (Nor or IEC) and maximum harmonic analysis order (Order) can also be
set. The measurement interface is shown in the following figure.

Quick Guide UTE310 Digital Power Meter
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BAR Mode
LIST Mode
SET (Harmonic Setting) Interface
6.2.3 Wave Display
Pressing the [Wave] key to enter the wave display interface. UTE310 supports display the waveform of
voltage and current at the same time or display one of them. Rotating the encoder knob to adjust the time
axis, the vertical axis is automatically set according to the measured range. In the wave display interface, the
peak-to-peak of voltage and current can be viewed, as shown in the following figure.
Wave Display Interface
6.2.4 Integration Interface
UTE310 supports the average active power integration and the current integration. Pressing the [Integ] key
to enter the integration interface. The instrument has three integration modes, manual integration (set the
integration timer to 00000: 00: 00 in the normal mode), standard integration (Normal) and continuous
integration. The integration interface displays the integrated value and integration time and can set the
integration time. The measurement interface is shown in the following figure.

Quick Guide UTE310 Digital Power Meter
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Average Active Power Integration
Current Integration
6.2.5 Setup Menu
Pressing the [SETUP] key to enter the Setup menu, to set the the parameter of data synchronization source,
digital filter, crest factor, data update interval, automatic timeout, automatic data synchronization source,
average filter (AVG), external current sensor input (EXT) andexternal proportional converter VT/CT/PT, JUMP
(skipping range), D/A Output and Control, etc. The setting interface is shown in the following figure.
6.2.6 System Menu
Pressing the [System] key to enter the system settings, which includes the system information, display
brightness, key sound, communication protocol, IP address and USB. The system interface is shown in the
following figure.