UNI-T UT8803 User Manual

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

Benchtop Digital Multimeter

User Manual

1

I. Introduction

UT8803 is a professional 6000 count benchtop multimeter with high accuracy and outstanding performance.
It supports multiple measurements:

AC/DC voltage
AC/DC current
Resistance
Frequency
Capacitance
Inductance
Audion (hFE)
Diode(LED)
Thyristor(SCR)
Continuity

Please carefully read and comply with all warnings and cautions in this manual.

II. Open box inspection

Open the package box and take out the instrument. Please check whether the following items are deficient
or damaged and contact your supplier immediately if they are.

User Manual(DVD-R)----------------------1pc
Test leads-------------------------------------1pair
Alligator clip test line-----------------------1pair
Power line------------------------------------1pc
Software DVD-------------------------------1pc
USB cable------------------------------------1pcs
Warranty--------------------------------------1pc

Warning: When the measured voltage is greater than 600V, The instrument cannot be used for
measurements in CAT II, CAT III and CAT IV environment

2

III. Safety instructions

Safety standards

This instrument strictly follows the EN 61010-1: 2010, EN 61326: 2013, RoHS, pollution grade II safety
standard, CAT II 600V.
Unplug the power cord when the instrument is not in use.
Note: In the case that the instrument is not used in accordance with the operation instructions,
the protection provided by the instrument may be weakened or lost.

CLEANING

Be sure meter is turned off and wipe with a clean ,dry lint-free cloth.
Do not use abrasive cleaners or solvents

Power cord
specification:

1) Before using the instrument, please check if there is any item which is damaged or behaving abnormally.
If any abnormal item is found (such as: test lead bared, housing case damaged, LCD broken, etc.),
please stop using the instrument. It is strictly prohibited to use an instrument without shell cover.
Otherwise, there is a danger of electric shock.

2) If test lead is damaged, replace with the same type or of the same specifications.

3) Do not touch bare wire, connectors, input terminal or circuit being measured.

4) Use caution to measure voltage >DC 60V or AC 36Vrms, keep fingers behind finger guard to prevent
shock hazard.
Before each use, verify operation by testing a known working circuit that is within the rating of this unit.

5) When measuring unknown voltage, switch the dial to the maximum range position.

6) Do not impose voltage or current exceeding the specified ones on the instrument.

7) Functional dial should be switched to proper position. After each measure, disconnect the test leads
with the circuit. Pull out the power line if not use for long time. Do not switch the functional dial during
measurement.

Approval NO.

116006

40036455

40040244

Rating

300/500V

16A 250~

10A 250~

Description

H05VVF 3X0.75mm²

XR-T002

XR-W002

Name

CORD

PLUG

CONNECTOR

3

IV. General specifications

1) Max voltage between input terminal and COM jack: 1000V DC/750V AC

2) Fuse Type:
10A Jack: (CE) F1 (12A H 1000V) Fuse (Φ6.3x32) mm
mA/μA Jack: (CE) 600mA H 1000V Fuse (Φ6.3x32) mm

3) Display: Max value: 5999; refresh 2~3 times/s

4) Range: Auto

5) Polarity: Auto

6) Overrange indicator: OL

7) Operating temperature: 0~40˚C (32˚F~104 ˚F)

8) Storage temperature: -10 ˚~50 ˚C (14 ˚F~122 ˚F)

9) Relative humidity: ≤75% at 0 ˚C~30 ˚C; ≤50% at 30 ˚C~40 ˚C

10)Electromagnetic compatibility:
RF=1V/m, overall accuracy=specified accuracy+5% of range.
RF>1V/m, no specified calculation.

11)Power Supply: AC 100V/120V/127V/220V/230VAC/240V, 450-440Hz, 28VA max Protection fuse being
used: For AC 100V/120V/127V,AC 250V T 250mA For AC 220V/230V/240V, AC 250V T 125mA μA mA
FUSE: 400mA/1000V

12)Dimension: 320mm*265mm*110mm

13)Weight: 3100g (accessories excluded)

14.Safety standards: IEC 61010: CAT II 600V

15.CAT II: It is applicable to test and measuring circuits connected directly to utilization points (socket
outlets and similar points) of the low-voltage MAINS installation.

16)Temperature coefficient: 0.1*(specified accuracy)/ ˚C (<18 ˚C or ≥28 ˚C)

8) Do not use or store the instrument in high temperature, high humidity, flammable, explosive or strong
magnetic field environments.

9) Do not change the internal circuit of the instrument in order to avoid the damage to the instrument and
users.

10)Switch off the power supply after measurement

4

V.Display screen

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

HOLD

MAX

MIN

USB

PAL

SER

SCR

RANGE

AUTO

C

hFE

L

D Q R

Capacitance

Auto range

Manual range

Maximum value

Minimum value

Data hold

Relative value

Series

Parallel

USB connection

Diode& thyristor polarity

Thyristor/continuity/

Audion magnification

Reading

Unit

Stimulation bargraph

High voltage

Inductance

Capacitance loss factor, inductance
quality factor, equivalent resistance
measurement.

5

15.Measurement units:

mV、V

μA、mA、A
Ω、kΩ、MΩ

nF、 F、mF μ
μH、mH、H

Hz、kHz、MHz

β

℃

/

℉

20.

21.

AC

22.

DC

Negative value

Alternative current

Direct current

Voltage

Current

Resistance

Capacitance

Inductance

Frequency

Thyristor magnification

Temperature

6

VI. Functions

V COM←→

V ←→ COM

V ←→ COM

V ←→ COM

V ←→ COM

V ←→ COM

V ←→ COM

V ←→ COM

V ←→ COM

V ←→ COM

μA mA ←→ COM

A ←→ COM

μA mA ←→ COM

A ←→ COM

℃

/

℉

SCR

hFE

A

µA mA

A

µA mA

R

Q

D

L

C

Hz %

Ω

V
V

Functions (measurement modes)

DC voltage

AC voltage

Resistance

Continuity

Frequency/ duty ratio

Capacitance

Inductance

Capacitance loss factor

Inductance quality factor

Equivalent resistance

DC current

DC current

AC current

AC current

Diode(LED)

Audion magnification

Thyristor measurement

Temperature

Multifunction socket (UTS-03A)

Multifunction socket (UTS-03A)

Multifunction socket (UTS-03A)

V-COM
Multifunction socket (UTS-03A)

Position

Input terminal

7

VII. Structure

1. Power switch

2. Display screen

3. 20A jack

4. μA/mA jack

5. COM jack

6. Function jack(voltage, resistance, inductance,
capacitance, frequency, continuity, diode, duty ratio)

7. Buttons:

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

1

2 3 4 5 6 77

8

F2 F600mA 1000V

100V

240V

TO AVOID ELECTRIC SHOCK, REMOVE THE TEST

LEADS AND TURN OFF THE POWER INPUT BEFORE

OPENING THE CASE AND REPLACING THE FUSE.

POUR ÉVITER UN CHOC ÉLECTRIQUE, RETIREZ

LES CORDONS DE MESURE ET ÉTEIGNEZ
L'ALIMENTATION AVANT D'OUVRIR LA CASE

ET DE REMPLACER LE FUSIBLE.

SELECTOR LINE(45-440Hz,28VA Max) FUSE

100V
120V

AC 100V

AC 120/127V
220V
240V

AC 220/230V

AC 240V

AC 250V T250mA

AC 250V T125mA

9

10 11 12 13

Data hold/backlight
Function switch
Range switch
Max/min value
Relative value/USB connection
Loss factor/ quality factor/ equivalent resistance

8.Function dial

9.Grounding

10.Fuse dial (F2 600mA)

11.USB port

12.AC voltage switch

13.Socket

8

Symbols on meter

Power on

Power off

Direct current

Alternating current

Ground Terminal

Caution, possibility of electric shock

Warning or caution, To ensure safe operation and service of this meter,
follow all warnings and instructions detailed in this manual.

USB port

Do not place equipment and its accessories in the trash. Items must be
properly disposed of in accordance with local regulations.

Comply with European Union Directive

Conforms to UL STD. 61010-1, 61010-030, Certified to CSA STD.
C22.2 No. 61010-1, 61010-030.

It is applicable to test and measuring circuits connected directly to utilization
points (socket outlets and similar points) of the low-voltage MAINS installation.

CAT II

9

VIII. Operation instructions

Note: Select the corresponding input terminal. Functional dial should be switched to proper position

1. DC voltage measurement

a) Insert red test lead to V jack, black lead to COM jack.
b) Switch the dial to position, press button to enter DC measurement mode (figure 1). Connect
the test leads to the load in parallel.
c) Reading displayed.
d) Press button to manually switch the range. Press 4 times to enter mV range.

Note:
Do not input voltage over 1000V, or it may pose shock hazard.

Use caution to measure high voltage
After each measurement, disconnect test leads and circuit being measured.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

10

2.AC voltage measurement

a) Insert red test lead to V jack, black lead to COM jack.
b) Switch the dial to position, press button to enter AC measurement mode (figure 1). Connect
the test leads to the load in parallel.
c) Reading displayed. (Sine wave true RMS)
d) Press button to manually switch the range. Press 4 times to enter mV range.

Note:

Do not input voltage over 750V, or it may pose shock hazard.
Use caution to measure high voltage
After each measurement, disconnect test leads and circuit being measured.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

11

3.Resistance measurement

a) Insert red test lead to Ω jack, black lead to COM jack.
b) Switch the dial to position, press button to enter resistance measurement mode (figure 2).
Connect the test leads to the load in parallel.
c) Reading displayed.
d) Press button to manually switch the range.

Note:

If the resistor is open or over the range, the “OL” symbol will be displayed on the screen.
Before measuring resistance, switch off the power supply of the circuit, and fully discharge all capacitors.
When measuring low resistance, the test leads will produce 0.1Ω~0.2Ω measurement error. To obtain

accurate measurement, short the test leads and use REL function.

If the resistance when shorted is more than 0.5Ω, please check if test leads are loosened or damaged.
When measuring high resistance above 1MΩ, it is normal to take a few seconds to steady the readings.

For steady readings, short test line can be used for measure.

Do not input voltage over 30V (sine wave RMS), (peak value 42V) or DC 60V.
After each measurement, disconnect test leads and circuit being measured.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

12

4.Diode measurement

Method 1:

a) Insert red test lead to jack, black lead to COM jack.
b) Switch the dial to position, press button to enter diode measurement mode (figure 2). Connect
the test leads to the load in parallel.
When appears, positive pole: red test lead; negative pole: black test lead
When appears, pole: black test lead; negative pole: red test lead
c) Display reading of positive onset voltage of PN junction.

Method 2:

a) Insert UT-S03A (multi-function socket)to the corresponding socket.(figure3)
b) Insert the diode or LED pin to the socket marked with DIODE
When appears, positive pole: right side of socket; negative pole: left side of socket
When appears, positive pole: left side of socket; negative pole: right side of socket
c) Display reading of positive onset voltage of PN junction.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

13

5.Continuity measurement

a) Insert red test lead to Ω jack, black to COM jack.
b) Switch the dial to position, press to enter continuity measurement. Connect the test leads to the
resistor in parallel. If circuit is well conducting, resistance<10Ω, buzzer goes off continuously; if circuit
is open, resistance>50Ω, buzzer does not go off.
c) Reading is displayed.

Note:

Before measurement, please switch off all power supply and fully discharge all capacitors.
Do not input voltage over 30V (sine wave RMS), (peak value 42V) or DC 60V.
Disconnect test leads with the circuit after measurement.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

14

6.Inductance measurement

a) Insert red test lead to L jack, black test lead to COM jack.
b) Switch the dial to L position, connect test leads with the inductance in parallel.
c) Reading is displayed.
d) Press to manually switch the range.
e) Press to switch Q/R functions, long press this button to return to inductance measurement.

Note:
Before measurement, please switch off all power supply and fully discharge all capacitors.
For accuracy, please reset the reading to 0 before measurement.

Method:

1. When the test leads in open status and frequency is 1kHz, press REL to reset the reading to zero.

2. When the test leads are shorted and frequency is 10kHz, press REL to reset the reading to zero.
For inductance over 1H, it takes long time to steady the reading
Values of capacitance loss factor (D) and inductance quality factor (Q) are only for reference.
Do not input voltage over 30V (sine wave RMS), (peak value 42V) or DC 60V.
Disconnect test leads with the circuit after measurement.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

15

7.Capacitance measurement

a) Insert red test lead to C jack, black test lead to COM jack.
b) Switch the dial to ** position, connect test leads with capacitor in parallel.
c) Reading is displayed,
d) Press to manually switch the range.
e) Press to switch Q/R functions, long press this button to return to capacitance measurement.

Note:

If the circuit being measurement is shorted or the capacitance is over range, OL will appear.
There may be dozens of remaining digits because of the intrinsic capacitors. Please reset the reading
to 0 before measurement.

Method:

1. When the test leads in open status and frequency is 1kHz, press REL to reset the reading to zero.

2. When the test leads are shorted and frequency is 100Hz, press REL to reset the reading to zero.
For capacitor over 600μF, it takes long time to obtain reading.
Before measurement, please switch off all power supply and fully discharge all capacitors.
Pay particular attention to capacitors with high voltage.
Do not input voltage over 30V (sine wave RMS), (peak value 42V) or DC 60V.
Disconnect test leads with the circuit after measurement.

黑黑

红红

L

L

DIGITAL MULTIMETERDIGITAL MULTIMETER

True RMSTrue RMS

6000 Counts 6000 Counts

FUSED

FUSED

CAT II 600V

CAT II 600V

FUSED

FUSED

MAX 30 sec EACH 15minMAX 30 sec EACH 15min

1000V
750V

1000V
750V

maxmax

16

8.Audion measurement

a) Insert UT-S03A (multi-function socket) to the corresponding socket.
b) Switch the dial to position, press to switch to audion measurement.
c) Insert the audion to UT-S03A. Pins of audion should correspond with jacks of UT-S03A.
B(basic), E(emission), C(collector)
d) Reading is displayed.

Note:

Do not input voltage over 30V (sine wave RMS), (peak value 42V) or DC 60V.
For accuracy, insert the audion correctly to the multi-function socket. Pay attention to the polarity.

DIGITAL MULTIMETER

True RMS

6000 Counts

CAT II 600V

17

9.Thyristor measurement

a) Insert UT-S03A (multi-function socket) to the instrument.
b) Switch the dial to position, press to switch to thyristor measurement.
c) Insert SCR correctly to UT-S03A: G(gate), A(anode), K(cathode)
d) Display as following:

DIGITAL MULTIMETERDIGITAL MULTIMETER

True RMSTrue RMS

6000 Counts 6000 Counts

CAT II 600V

CAT II 600V

Note:

Before measurement, please switch off all power supply and fully discharge all capacitors.
Pay particular attention to capacitors with high voltage.
Do not input voltage over 30V (sine wave RMS), (peak value 42V) or DC 60V.
Disconnect test leads with the circuit after measurement.

LCD display

0.1V~2V

0.1V~2V

ERR

OL

Status

Normal

Normal

Bad contact

Not connected/bad contact

SCR polarity

Two-way

One-way

Unknown

Unknown

SCR polarity symbol

18

10.Temperature measurement

a) Insert UT-S03A(multi-function socket) to the instrument.
b) Switch the dial to position, press button to switch temperature unit. OL appears if no
thermocouple connected.
c) Insert the thermocouple to UT-S03A, pay attention to the polarity. (reverse polarity results in negative
reading.)

DIGITAL MULTIMETER

True RMS

6000 Counts

CAT II 600V

19

11.Frequency measurement.

a) Insert red test lead to Hz% jack, black to COM jack.
b) Switch the dial to Hz% position, press to frequency measurement.
c) Connect the test leads with frequency source in parallel.
d) Reading is displayed.

Note:

Do not input over 30V AC or it will pose shock hazard.
Disconnect test leads with the circuit after measurement.

黑

红

L

DIGITAL MULTIMETER

True RMS

6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

黑

黑 黑

红

红 红

L

L L

DIGITAL MULTIMETER

DIGITAL MULTIMETER DIGITAL MULTIMETER

True RMS

True RMS True RMS

6000 Counts

6000 Counts 6000 Counts

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

FUSED

CAT II 600V

FUSED

MAX 30 sec EACH 15min

1000V
750V

max

20

12.Duty ratio measurement

a) Insert red test lead to Hz% jack, black to COM jack.
b) Switch the dial to Hz% position, press to enter duty ratio measurement.
c) Connect the test leads with signal source in parallel.
d) Reading is displayed.

Note:

Do not input over 36V AC or it will pose shock hazard.

Disconnect test leads with the circuit after measurement.
Duty ratio measurement function of UT8803 is only for reference.

13.Current measurement

a) Insert red test lead to μA mA or A jack, black to COM jack.
b) Switch the dial to position, press to enter AC/DC measurement.
c) Connect the test leads with signal source in series.
d) Reading is displayed. When measuring AC current, reading is sine wave RMS.

Note:

Before measurement, switch off the power supply of the circuit to be measured, fully discharge all high
voltage capacitors.
If the current is unknown, select the maximum range and reduce it accordingly.
Do not connect the test leads with circuit in parallel.
Disconnect test leads with the circuit after measurement.
When measuring current>20A, measurement time should be less than 30s with over 15 mins interval
or it may pose shock hazard or injury to human.

21

IX. Technical specifications

Accuracy: ± (% of reading + least significant digit), 1 year warranty
Ambient temperature: 18˚C~28˚C
Ambient humidity: ≤75% RH

1.DC voltage

6000mV

6V

60V

600V

1000V

0.1mV

1mV

10mV

100mV

1V

±(0.5%+2)

±(0.3%+2)

±(0.5%+3)

Range

Resolution

Accuracy

Input impedance: 10MΩ; Maximum voltage:1000V

22

40Hz-1kHz:±(0.6%+5)

≥1kHz-10kHz:±(1.2%+5)

≥20kHz-100kHz:±(4%+5)

≥10kHz-20kHz:±(3%+5)

40Hz-1kHz:±(0.6%+5)

≥1-10kHz: ±(1.2%+5)
≥10-20kHz: ±(3%+5)
≥20-100kHz: ±(4%+5)

40Hz-1kHz: ±(0.6%+5)

≥1-10kHz: ±(1.5%+5)
≥10-20kHz: ±(3%+5)
≥20-100kHz: ±(8%+5)

40 Hz-1kHz: ±(0.6%+5)
≥1-10kHz: ±(3.5%+5)

40Hz-1kHz: ±(1.2%+5)
≥1-3kHz: ±(3%+5)

0.1mV

1mV

10mV

100mV

1V

600mV

6V

60V

600V

750V

Input impedance: 10MΩ; Maximum voltage:750Vrms.

Frequency response: 40Hz~100kHz.
Display: Sine wave true RMS (average response)
In open status, there is residual reading which do not affect accuracy.

Range

Resolution

Accuracy

2.AC voltage

23

3.DC current

600μA

6mA
60mA
600mA
20A

0.1μA
1μA
10μA
100μA

10mA

±(0.8%+3)

±(1.5%+3)
±(2%+5)

40Hz-10kHz ±(1%+5)

＞10-15kHz:±(2%+5)

40Hz-5kHz:±(1%+5)

＞5kHz-15kHz:±(3%+5)

40Hz-1kHz:±(2.0%+6)

＞1 -15kHz;±(3.0%+6)k

0.1-10μA

100μA

10mA

600 A-6mAμ

60mA-600mA

20A

Range

Resolution

Accuracy

If current ≥10A, measure time should be less than 30s with 15mins interval. In open status, allowable
error: ≤5 residual digits.

4.AC current

Range

Resolution

Accuracy

Frequency response: 40Hz~15kHz.
If current ≥10A, measure time should be less than 30s with 15mins interval. In open status, allowable
error: ≤5 residual digits.

24

5. Resistance

600Ω
6kΩ
60kΩ
600kΩ
6MΩ
60MΩ

0.1Ω
1Ω
10Ω
100Ω
1 Ωk
10kΩ

±(1%+5)

±(0.8%+5)

±(2%+5)
±(5%+5)

Range

Resolution

Accuracy

Open circuit voltage: -1.2V

6.Capacitance

Minimum measure range: >8PF;
If capacitance >6.6mF, OL symbol appears
Input impedance: 4kΩ

6nF
60nF
600nF
6µF
60 Fµ
600 Fµ
6mF

1PF
10PF
100pF
1nF
1nF
10nF
100 Fµ

±(2.5%+5)

±(1.5%+5)

±(3%+10 )

±(5%+5 )
±(10%+8 )

Range

Resolution

Accuracy

25

7.Inductance

600µH
6mH

60mH
600mH
6H
60H

100H

0.1µH
1 Hµ
10 Hµ
100 Hµ

1mH
10mH

100mH

±(2.5%+5)

±(2%+5 )

60Ω
600Ω
6kΩ
60kΩ
600 Ωk
6MΩ

0.01Ω

0.1Ω
1Ω
10Ω
100Ω
1kΩ

±(2%+10)

±(1%+5)

±(5%+5)

Range

Resolution

Accuracy

Measure voltage: 0.6V RMS
Minimum measure range: >16μH
Input impedance: 4KΩ

8.Equivalent resistance (ACR) Ω

Range

Resolution

Accuracy

Minimum measure range: >0.1Ω
Input impedance: 4KΩ

Only for reference

26

600Hz
6kHz
60kHz
600kHz
6MHz
20MHz
5%~95%

0.1Hz
1Hz
10Hz
100Hz
1kHz
10kHz

0.10%

±(0.1%+10)

SCR
hFE

10mV
10mV
1β

0.5～0.8V

0.1～2V

Sensitivity: frequency<600KHz, amplitude>1.5Vrms or frequency>600kHz, amplitude>2.5Vrms,
minimum input>5Hz.
Duty ratio measurement only applicable for square wave ≤10kHz.
2Vpp≤input amplitude≤30Vpp
Frequency≤1kHz, Duty: 5.0%~95.0%
Frequency>1kHz, Duty: 30.0%~70.0%

Only for reference

Range

Resolution

Accuracy

9.Frequency/ duty ratio

10.Diode/audion/thyristor/continuity

Function
Diode
SCR test
Audion hFE

Continuity

Position Resolution

Accuracy

No specified
No specified

About 0.1Ω

When measuring hFE, Ib0: about 10μA; Vce: about 2.8V
When measuring diode, Silicon PN junction onset voltage drop: 0.5~0.8V, open status voltage: 8V

When measuring continuity, in good conducted circuit, resistance <10Ω, buzzer goes off;
in open circuit, resistance>30Ω, buzzer does not go off.

When measuring SCR, onset voltage drop: 0.1~2V; open circuit voltage: about 9V.

27

-40 -0℃ ℃
＞0 -400℃ ℃
＞400 -1000℃ ℃

-40 -32℉℉
＞32 -752 ℉ ℉
＞752 -1832℉ ℉

±2％+5℃
±1%+5℃
±2％+3℃
±2％+9℉
±1%+9℉
±2％+6℉

1℃

1℉

Display

0.1V~2V

0.1V~2V

ERR

OL

Status

Normal

Normal

SCR bad contact

SCR not connected or bad contact

SCR polarity

Two-way

One-way

Unknown

Unknown

SCR polarity indicator

11.Temperature

Range

Resolution

Accuracy

K-type thermocouple applicable

28

X.Power supply and fuse replacement

1.Power supply setting

2.Fuse replacement

F2 F600mA 1000V

100V

240V

FUSE

AC power FUSE

AC power input socket

Power supply voltage setting

TO AVOID ELECTRIC SHOCK, REMOVE THE TEST
LEADS AND TURN OFF THE POWER INPUT BEFORE
OPENING THE CASE AND REPLACING THE FUSE.

POUR ÉVITER UN CHOC ÉLECTRIQUE, RETIREZ

LES CORDONS DE MESURE ET ÉTEIGNEZ
L'ALIMENTATION AVANT D'OUVRIR LA CASE

ET DE REMPLACER LE FUSIBLE.

SELECTOR LINE(45-440Hz,28VA Max) FUSE

100V
120V

AC 100V

AC 120/127V
220V
240V

AC 220/230V

AC 240V

AC 250V T250mA

AC 250V T125mA

SELECTOR LINE(45-440Hz,28VA Max) FUSE

100V
120V

AC 100V

AC 120/127V
220V
240V

AC 220/230V

AC 240V

AC 250V T250mA

AC 250V T125mA

1) Turn the red switch to the corresponding position

2) Setting steps:
a. Unplug the power cord
b. Turn the red switch to corresponding position
c. Selectable positions are shown below

1) Unplug the test leads from the instrument.

2) Turn off the power supply for the instrument

3) Open the fuse housing with a screwdriver.

4) Replaced the fuse with new one.

100V

120V

220V

240V

100V

120V/127V

220V/230V

240V

Position

Voltage

Demonstration

Description

Input
corresponding
voltage

1

2

3

4

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