Unit UT30B Manuel utilisateur

CONTENTS

A. Introduction

B. Safety Rules

C. International Electrical Symbols

D. Feature

E. Specification

F. Operation Plate

G. Make Measurement

H. Fuse and battery replacement

I. Accessories

Remark:

The model of UT30B,UT30C,UT30D will be marked as UT30BL,UT30CL

UT30DL,if they have backlight function.

Model UT30B/C/D/F: OPERATING MANUAL

Summary of UT30 Series DMM

A.Introduction

UT30 series Multimeter is 3 1/2 digits with steady operations,fashionable

structure and highly reliable hand-held measuring instrument. The meter

can measure DC/AC voltage, DC/AC current, Resistance, Frequency,

Temperature, Diode, Transistor hFE, and Continuity. It is an ideal tool for

maintenance.

Model UT30B/C/D/F: OPERATING MANUAL

B. Safety Rules(1)

CAUTION-FOR CONTINUED PROTECTION AGAINST FIRE, REPLACE

ONLY WITH FUSE OF THE SPECIFIED VOLTAGE AND CURRENT

RATINGS.

l Do not operate the meter unless the bottom case has been closed as

terminal can carry voltage.

l Inspect the insulation of the test leads and make sure there is no

damage to the test leads before using the meter.

l As soon as the battery indicator’s” “±appear, replace the battery to

ensure accurate readings.

l Set the meter to suitable function and range before each measurement.

l Tested values over the maximum range of each measurement can

cause damages to the meter or electric shock to users.

l To avoid damages of the meter, do not turn the rotary switch during

measurement.

l When measuring voltage higher than DC 60V or AC 30Vrms, pay

extra attention to avoid electric shock.

Model UT30B/C/D/F: OPERATING MANUAL

l Make sure to replace right type and right rating fuse.

l Do not operate or store the Meter under high temperature or humid

condition.

l Do not change internal circuit to avoid damages to the meter and

danger to the user.

l Periodically wipe the case with damp cloth and mild detergent. Do not

use abrasives and solvents.

l The meter is designed to withstand the stated maximum voltages.

If it’s not possible to exclude, without doubts, that impulses, transients,

disturbance or for other reasons these voltages are exceeded, a

suitable prescaler (1:10) must be used.

B. Safety Rules(2)

Model UT30B/C/D/F: OPERATING MANUAL

C. International Electrical Symbols

Low Battery Earth Ground

Warning Double Insulation

AC current Diode

DC current Buzzer

Fuse AC or DC

Model UT30B/C/D/F: OPERATING MANUAL

D.General Specifications(1)

1. The maximum voltage, between any terminal and earth, is 600Vrms.

A . The“COM”input terminal is always connected with the black test

lead.

B . The“V,ohm, mA”input terminal is always connected with the red

test lead and is used to measure voltage up to 500V,resistance

and current up to 200mA.

C . The“10A MAX”input terminal is always connected with the red test

lead and is used to measure current greater than 200mA but no

more than 10A.

2. 10A Terminal: non-fused

3. mA Terminal Fuse: ø5x20-0.3A 250V.(Fast)

4. Maximum Display is 1999,and updates two or three times every second.

5. Over range display is “1” or “OL”. (Only UT30F).

Model UT30B/C/D/F: OPERATING MANUAL

D.General Specifications(2)

6. Temperature:

Operating: 0oC-40oC (32 oF-104 oF)

Storing:-10oC-50oC (14 oF-122 oF)

7. Altitude:

Operating:2000m

Storage:10000m

8 Relative humidity:Max.relative humidity 80% for temperature up to

31oC decreasing linearly to 50% relative humidity at 40oC.

9. Battery: 9V NEDA 1604 or 6F22 or 006P.

10. Low Battery Indication: Display “ ”.on LCD.

11. Dimension:75mmx130mmx36mm

12. Weight: approx. 150g(Test Leads not included)

Model UT30B/C/D/F: OPERATING MANUAL

E.Specification(1)

Accuracy: (a% reading + b digit), which guarantee one year.

Environmental Temperature:23 oC 5oC

Relative Humidity: <75%

Input Impedance:10MΩfor all the ranges.

Overload protection: At 200mV range, it’s protected at 230V(AC / DC

Current), others are protected at 500V(AC or DC).

Range Resolution Accuracy

200mV

2000mV(2V)

20V

200V

500V

100µV

1mV

10mV

100mV

UT30B UT30C UT30D UT30F

(0.5%+2)

(0.8%+2)

1. DC Voltage

Model UT30B/C/D/F: OPERATING MANUAL

E.Specification(2)

2. AC Voltage

Input Impedance: (approx. 5MΩ) of UT30B\C\D, but all ranges of

UT30F are 10MΩ.

Frequency: 40-400Hz

Display: RMS of Sine Wave Value (Average Value)

Overload protection: At 200mV range, it is protected at 230V(AC / DC

Current), others are protected at 500V(AC or DC )

Range Resolution Accuracy

200mV

20V

200V

500V

100µV

1mV

10mV

100mV

UT30B UT30C UT30D UT30F

(1.2%+10)

(1.2%+3)

(1%+3)

Model UT30B/C/D/F: OPERATING MANUAL

E.Specification(3)

Range Resolution Accuracy

200µA

2000µA(2mA)

20mA

200mA

10A

100nA

1µA

10µA

100µA

10mA

UT30B UT30C UT30D UT30F

(1.2%+2)

(2%+5)

(1%+2)

Overload Protection: 0.3A/250V fuse, No fuse at 10A,measuring time

limit is equal to or less than 10 seconds, and time interval should be equal

to or over 15 minutes.

Measuring voltage drop: Full range is 200m V.

3. DC Current

Model UT30B/C/D/F: OPERATING MANUAL

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