UYIGAO 188D User manual

Smart Meter User Manual
-
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Contents
1 . SafetyInformation
1.1 Preparation
1.2 Using
1.3 Symbols
2
. Descriptions
2.1 Components
2.2 SwitchAnd Button Instructions
3
. Specificationsand summary
4 . TestRange
5 OperationInstructions
5.1 Data Hold
5.2 Torch
5.3 Autopower off
5.4 Buzzer
5.5 MeasurementPreparation
5.6
AC & DC Voltage1Resistance1
5.7 AC & DC CurrentMeasurement
5.8 Diode Test
5.9 CapacitznceMeasurement
5.10 TemperatureMeasurement
5.11Frequency test
5.12 Firing line and electricprobe
6
. Maintenance
6.1 Battery Replacement
6.2 Probes Replacement
7 . Appendix
Warranty Instructions

This device is a 3 516 digitalmultimeternith sabl- Mormance
and reliable quality. The meter adopts LCD display screen nith
analogbar display. Users in the process ofuse,
truly achie~e
continuouspower operation, do not need to
turn the dial to select
functions.Accordingto the input ac/DC voltagelresistancenil1be
automaticallyidentified and measured It can be used to measure DC
voltage,AC voltage sine
RMS, DC current, AC current sine RMS,
,
resistance, capacitance,Live-lineindication, duty ratio, diode ontoff
test, symbol unit data hold and automaticpower off. The meter is
equippedwith a high performance MCU processor.It is powered by
high-capacityrechargeablebatteries with full functions and accurate
measurement.The multimeter is an ideal tool for laboratory, factory,
1
radio enthusiastsand household.
1. SafetyInformation
I I
A warning
Pay attentionthat wrong operationsmay
cause electric shock or damageto the meter. Please
follow the normal safety regulationsand user
manualwhen usingthis product.
In orderto take full advantagesof the
functionsand ensure safety, please read the
instructionsin this manualcarefully.
The meter complies with the generaltechnical conditionsof
GBIT 13978-92digitalmultimeterand complies with the safety
requirementsof GB4793.1-1995(IEC-61010-1,IEC-61010-2-032)
electronicmeasuringrequirements.It is a secondarypollution.The
,
overvoltagestandard is CAT I11 600V.
Please followthe safety instructionsto ensure
safeuse of the device.
With appropriateuse and protection,the multimeterwill give
you a satisfactoryservice.

1.1 Preparations
1.1.1When using the meter, the user must followthe standard
safetyrules:
- Generalanti-shockprotection
-Avoid misuse ofthe meter.
1.1.2After receive the meter, please check if it is damaged
in
transit.
1.1.3 Storeunder rough conditionsor afier shipment,please check
to seeif the product is damaged or not.
1.1.4The probe pens must be
in good condition.Beforeuse, please
I
check if the probe pens insulation is damaged,the wire is exposed
or not.
1.1.5Using the originalprobe pens will ensure safety.
If not, the
sametype or same grade ones will be needed.
1.2Using
1.2.1When using the meter, pleasemake sure the functionsand
measuringranges are correct,
1.2.2Don't exceedthe protection measuringrange.
1.2.3Do not touch the top of the test leads (metalpart) while the
meter is connectedto the measurementcircuit.
1.2.4During measurement,please take care to keep finger behind
stylusguard if the measured voltage is above 60V
DC or 30VAC
(RMS).
1.2.5Donot measure the voltage if the voltagebetween the
measuringterminal and ground exceeds lOOOVDC
And 750VAC.
1.2.6Before turning the switch to change the measurementfunction,
please removethe test leads fromthe circuit which is under test.
1.2.7 Do not measure resistors, capacitors, diodes and onloffwhen
they are charged.

1.2.8Be carefulto avoidthe instrumentconnectedto the voltage
power when measuringrange under current. resistance. capacitance,
diode and circuit onloff.
1.2.9Do not measurethe capacitanceuntil the capacitoris hlly
discharged.
1.2.10 Do not use this meter near explosivegases. vapors or dust.
1.2.11 Ifthere is any abnormalor faultyperformance of the meter,
stopto use it.
1.2.12Do not use the deviceunless the instrumentcase and battery
cover are Mlyfastened
in place.
1.2.13Do not store or use the meter in direct sunlight,hot or humid
conditions.
1.3 Symbols
A Warning (an important safety symbol,please refer to Operation
Manualbefore operatingthe meter.)
It can be used on hazardouslive conductors.
Double insulationprotection (class II)
CAT 111 Overvoltage(installation)class I11 in accordancewith
IEC-61010-1Pollution degree 2 refers to the level of impulse
withstand voltage protectionprovided.
cc Complieswith the European Union (EU) standard
Ground.
2.1 Components
1) NCVZone
2) Powerbutton
3) LCD Display
4) Inputjack
5) Capacitor functionbutton,

6)
Data holding, Torch and backlight
7) Selectionbutton
8) Torch and function indicator

2.2 Switch andbutton and description
Powerbutton: Press this button more than
3 second,then can open
and close the power
Selection button: select functionmanually
Function keep and Torch:press this button, keep the data holding,
press againthen clear the data holding. Press long than
3 second,
then open the torch. Press again then close the torch. Torch cannot
close automaticallyneed close manually.
Capacitance button: shortlypress one time enter to capacitance
mode, press again enter to auto mode cycle
3. Specifications
Themeter shouldbe designated one year
as a cycle and
re-calibratedat 18 C - 28 "C and relativehumidityless than
75%.
3.1 Summary
Manualrange and Auto range.
Full range overloadedprotection.
The maximum voltage allowedbetween the measuring terminal and
ground: lOOOV DC or 750V
AC
Fuse protection: uA, mA Gear fuse:FF630mA/250V; A Gear fuse:
FF2OA1250V
Working height: Max 2000m
Monitor: 6000 counts LCD monitor with analogbar.
Maximum display value:
5999 digits
Polarity indication: automatic indication,
'-' indicatesnegative
polarity.
Over-rangedisplay:
'OL' or '-OL'.
Samplingtime: about 3 times / second

2.2 Switch and button and description
Power button: Press this button more than 3 second then can open
and close the power
Selection button: select functionmanually
Function keep and Torch:press this button, keep the data holding,
press again then clear the data holding. Press long than
3 second,
then open the torch. Press again then close the torch. Torch cannot
8
close automaticallyneed close manually.
Capacitance button: shortlypress one time enter to capacitance
mode, press again enter to automode cycle
3. Specifications
The meter shouldbe designated one year as a cycle and
re-calibratedat 18
"C - 28 "C and relativehumidityless than
75%.
3.1 Summary
Manualrange andAuto range.
Full range overloadedprotection.
The maximum voltage allowedbetween the measuring terminal and
ground: lOOOV DC or 750VAC
Fuse protection: uA,
mA Gear fuse:FF630mN250V; A Gear fuse:
FF2ON25OV
Working height: Max 2000m
Monitor: 6000 counts LCD monitor with analogbar.
Maximum display value:
5999 digits
Polarity indication:automatic indication,
'-' indicatesnegative
polarity.
Over-rangedisplay: 'OL' or '-OL'.
Samplingtime: about 3 times I second

Unit display:a function,power unit display.
Automaticpower off time: about 15minuteswhen no signal
Batterytype: 3.7V12800mArechargeablebattery
Temperaturecoefficient:less than 0.1
X accuracy 1 C
Working temperature: 18 'C - 28 "C
Storagetemperature: -10 C - 50 %
Size: 150 (L) X 75(W) X 24(H)mm
Weight: about 2000g (includingbattery)
4.Test range
4.1 DCVoltage
- input resistance: lOMQ
- Maximuminput voltage: 750VAC
(RMS ) or lOOOV DC
-
600V I 0.1V
1OOOV ( 1.OV
' 4.2 AC Voltage
MeasuringRange
I Resolution I Accuracy
6V
I 0.001V I f (0.8%readings
Accuracy
MeasuringRange
+ (0.8%readings
+ lodigits)
Resolution
-Input sensitivity: 0.8VDC voltage
-Inputsensitivity: 0.8VACvoltage
600V
I 0.1V
750V I 1.OV
- Inputresistance: lOMQ
+ ( 1.O% readings
+ lodigits)

- Maximum inputvoltage: 750VAC (RMS or l OOOV DC
- Frequency range: 50 - lOOOHz True RMS
4.3 AC and DC Current
6OOOmA
+ ( 1.O% readings
+ 5digits)
0.01A !c (2.5%readings
+ 10digits)
- measuringrange hse (FF20N250V)
-Maximuminputcurrent : 1OA DC orAC RMS :
-When the measurement current is greater than 5A, the continuous
measurement time shall not be longerthan 15seconds, and the
currentmeasurement shallhe stoppedfor more than
1 minuteafter
measurement
:
- Frequencyresponse: 40Hz - 1OOOHz true RMS (AC currentonly).
MeasuringRange 1 Resolution I Accuracy
600R 1 0.1R ( + (0.8% readings + 3
1 digits)
- Open circuitvoltage: about 1.OV
digits)
6k.Q
6MQ
60Mn
- ~ierload~rotectiin: 250V DC orAC (RMS)
0.001M
0.001Mfi
0.01MR
-+ (1.2% readings + 3
digits)
* (2.5% readings + 5

4.5 Capacity
f (4.0% readings t 20
- Overloadprotection: 250V DC or AC (RMS)
- Input voltage range: 200mV-10V ac (Asthe measured frequency
increases, the input voltage should also increase)
4.6 Diode Test
approximatediode
forwardvoltage
ForwardDC current is about 1rnA
1
:Reverse DC voltageabout 3.2V
- Overloadprotection: 250V DC orAC (RMS)

than500, buzzer
attachedto the 1
4.7 CircuitOnlOffTest
instnunent may sound.
If less than 10R, the
buzzer must sound.
MeasuringRange
- Open circuit voltage: about 1.OV
- Overloadprotection: 250V DC or AC (RMS)
4.8TemperatoreTest
MeasuringRange
I Accuracy I Resolution
-40°C-300°C
1 *(1.0%+4d) I 1°C
Resolution
- Overloadprotection: 250V DC or AC (RMS)
Function
1) If the
resistance
of tha circuit
to
be tested is less
5. OperationInstructions
5.1 Data hold
In the process of measurement, ifneed tohold the reading, you can
press HOLD key to display.
The displayedvalue of the device will be locked, and then to press
the key again to release the reading hold.
5.2 Torch
1) if the ambient light is too dark, difficulties to get resulting, press
the Torch tag more than 3seconds, press againthen close the torch
9

5.3 AutomaticPower Off
1 ) If there is no operation for any 15minutes after power-on,the
meter will go to sleep state to automaticallyshutdown to save
power. One minute before the shutdown,the buzzer has
5 prompts,
and then goes to sleep after a long time before shutdown. (Note:
there is still 3
- 6uA working current after automatic shutdown, it is
better to go to OFF or unplug the battery for a long time)
2)After automaticallyshut down,press the power key, the
meter resumes working status.
3) Ifthe " SEL " key is pressed while powering on, the auto
power off function will be canceled.
5.4 Buzzer
When any key is pressed or the function switch is turned on, if
the functionkey is active, the buzzer beeps (about 0.25 seconds).If
the measured voltage or current is greater than the set alahn value,
for example, theAC voltage is greater than 750V, the
DC When the
voltage is higherthan IOOOV the buzzer will continueto sound as
over-rangewarning. Thebuzzer will continuouslyemit 5 sounds
about
1 minutebefore the auto-off and the buzzer will give a long
sound warning; When the auto power off function is canceled, the
buzzer will be issued five consecutivewarnings every 5 minutes.
5.5 MeasurementPreparation
1) Press thepower key more than 3 second, If the battery voltage is
low you shouldrechargethe battery.
2)
"a" symbol indicatethat the input voltage or current should
'
not exceed the indicatedvalue, which is to protect the internal
circuit from damage.
3) Setthe switch to the desiredmeasurement functionand range.
5.6 AC & DC voltage1Resistance1
CircuitOnIOff Test measurements

Risk of electric shock
Pay special attention to avoid electric shockwhen
measuring high voltage.
Do not enter voltages above lOOOV DC or750V rms to
prevent electric shock ordamage to the meter.
Do not apply voltages in excess of lOOOVAC or
750VAC between the common terminal and earth
ground in case of electric shock or damage to the
meter.
1 ) Press power key more than three second enter to Auto mode
2 Connectblack test leads to COM and red test lead to input
voltage /resistance/ Circuit OdOffjack, the other end of the lead to
the power supply and resistance of the circuit to be tested. Test lead
reliably contacttest point. Meter automaticallyjudge
AC voltage,
DC voltage, resistance, and automaticallydisplay the polarity of DC
voltage signal.
3) When the measuringvoltage is greaterthan about 0.8V, whether
ac voltage or DC voltage, the instrumentwill comparewith the size
of the DC componentand AC component,take its larger component,
and then accordingto the size of the measured value in
6V/60V/600V/750V/100OV(maximum AC voltage 75OV,
maximumDC voltage 1000V)between automatic switch,Then the
measuredmeasurementvalue is displayedon the liquid
crystal. When the measuredresistance is less than about 50Qthe
built-in buzzer sounds
Note:
1 ) Indicates the maximum input voltage is 750V AC or lOOOV DC
2) If the meter measured high voltage , please be careful shock
3) Disconnect the test lead from the circuit under test after all

measurementoperations have been completed
5.7 AC & DC Current Measurement
b I
warning
Risk of electric shock
Do not attempt to make current measurements on
the circuitwhen the voltage between the open circuit
voltage and ground exceeds
250V. If the fuse is blown
duringmeasurement, it may damage the meter or
yourself.
To avoid damage to the meter orthe device under
test, check the
fuse of the meter before making current
measurements. When measuring, use the correct input
sockets, function gears and measuring range. When
the test pen is inserted in the current input socket, do
not connect the other end of the test pen to any circuit
1) Connectthe black test lead to the COM input socket.connectthe
red test lead to the current input socket;the meter can identifythe
AC or DC current automatically
3) Disconnect the circuit under test. Connect the black test lead to
the disconnected (lower voltage) end of the circuit, and connect the
red test lead to the other end of the disconnectedcircuit (which has
ahigher voltage).
4) Connectthe circuit power, and then read the displayed readings.
, If the display only shows "OL", this means that the input exceeds
10A
5.8 Diode Test
warning
Risk of electric shock

To avoid damageto the meter orthe device under test,
allpower to the circuitunder test should be cut off
and all high voltage capacitorsfully discharged before
measuring the resistance.
Test a diode outside the circuit
1) Insertthe red and black test lead into the
COM jack,
Connectthe other end of the red test lead to the diode anode and the
other end of the black test lead to the diode cathodefor testing.
2) Connectthe other end of the red stylusto the diode anode and the
other end of the black stylus to the diode cathode for testing.
3) The meter shows the approximate forwardvoltage drop of the
diode under test. If the polarity of the test leads is reversed,the
meter will display
"OL."
In the circuit,the normal diode should produce a forward voltage
drop of
0.5V to 0.8V; however, the reversebias readingwill
depend on the change inresistance of the other channelsbetween
the two test leads
5.9 Capacitance Measurement
To avoid damage to the meter orthe device under
test, disconnect all power to the circuit under test and
fully discharge all high-voltage capacitorsbefore
measuring capacitance. DC voltage gesr to determine
1 ) Insert the red and black test lead into the input jack,
Press "SEL" button to the capacitance test
2) After the capacitoris completelydischarged,the other end of the
red and black pen is connectedto both ends of the capacitorto be
measured. And the LCD reads the measured capacitancevalue
13

Note:
1) To improvethe accuracy of measurementsbelow lOnF, subtract
the distributioncapacitanceof the meter and leads.
2) When measuring large capacitance,stablereading takes a certain
amountof time.
3) When measuringpolar capacitor, pay attention to the
correspondingpolarity to avoid damagingthe instrument.
5.1OTemperatureMeasurement
warning
Do not enter a temperaturehigherthan 60V AC
voltage 30V AC voltage to avoid damageor instrument
1) Press the power key 3 second,press SEL to Temperature
Measurementmode
, select the Celsius or Fahrenheit as required.
2) Connectthe negative terminal (black) and the positive terminal
(red) of the K type thermocoupleto the
COM jack and inputjack
separately.
3) The other end ofthe thermocouple(test side)close to the surface
of the measured object.
4) To be read by the liquid crystal displayto read the measured
temperaturevalue.
Note:
K-type thermocoupledistribution of the highest measurement
temperature of 250
5.11 Firingline and NCV test
1) Press power button more than 3 second,press SELbutton to enter
electroprobetest mode
2)The non-contact voltage zone of the instrument is closeto the live

line of AC voltage (less than 5mm). When the weak signal is
detected, the display screen of the instrument pair will show
"--LW
and the red indicator light will light up. As the signal increases, the
instrument display screen will display
"--HW, while the red indicator
lightis on, the closer to the AC voltage line, the buzzer will give out
a higher frequencyalarm sound
3)Press SEL button, switch to the wire on the liquid crystal display
Live characters, red test lead
(COM black test lead must pull out)
close to the fire test points, and a reliable contactwith that point, if
the test point to the line of fire, instrument display screen will show
tv__ __ _ H", red light is on at the same time, the continuation of the
alarmbuzzer
Note,
1) Stylus detection can be influenced by socket design, insulation
thickness and type of factors. Voltage may still exist even
without indication. Do not rely on a stylus detector to determine
whether a shielded line has voltage.
2) External interference sources (such as the flashlight and motor)
may trigger theprobe by mistake.
6 Maintenance
shockorpersonal injur replace the battery
immediately with the
"&' symbol on the meter's
The meter is powered by rechargeable battery, which doesnot need
to be replaced, but it still needs to be chargedin time to avoid
running out of power, which makes it difficultto recharge
again. Please refer to the chargingmethod of mobile phone for
details.

6.2 Probes Replacement
I I
warning
When changing the test leads, the same or equivalent
test lead must be replaced. The pen must be in good
If the pen insulation is damaged,such as wire exposed,you must
replace the pen.
7 Appendix
1) Probes Grade: 1 OOOV 10A 1 pair
2) User Manual 1PC
3 ) Temperatureprobe l pair
* The contents of this manual are subject to changewithoutnotice
*
* The contents of this manual are consideredcorrect. Please contact
the manufacturerif the user finds errors, omissions, etc.
*
* The companyis not responsiblefor accidentsand hazardscaused
by user's wrong operations
*
* The functionsdescribed inthis manual do notjustify the use of
the product for specialpurposes
*