Unit UT30B Manuale utente
CONTENTS
A. Introduction
B. Safety Information
C. Rules for safe operation
D. International Electrical Symbols
E. General Specifications
F. Specification
G. Operation plate
H. Make Measurements
I. Fuse and battery replacement
J. Accessories
Remark:
The model of UT30B,UT30C,UT30D will be marked as UT30BL,UT30CL
UT30DL,if they have backlight function.
1
Model UT30B/C/D/F: OPERATING MANUAL
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.
A. Introduction
2
Model UT30B/C/D/F: OPERATING MANUAL
This Meter complies with the standards IEC61010-1: in pollution degree 2, overvoltage
category (CAT I 600V, CAT II 300V) and double insulation.
CAT. I: Signal level, special equipment or parts of equipment, telecommunication,
electronic, etc., with smaller transient overvoltages than overvoltages CAT. II.
CAT. II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient
overvoltages than CAT. III
Use the Meter only as specified in this operating manual, otherwise the protection
provided by the Meter may be impaired.
B. Safety Information
3
Model UT30B/C/D/F: OPERATING MANUAL
C.Rules for safe operation(1)
l Use the meter only as the rules specified in this manual, otherwise,
the protection provided by the meter may be impaired.
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
4
Model UT30B/C/D/F: OPERATING MANUALModel UT30B/C/D/F: OPERATING MANUAL
5
Model UT30B/C/D/F: OPERATING MANUAL
l When measuring voltage higher than DC 60V or AC 30Vrms, pay
extra attention to avoid electric shock.
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 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.
C.Rules for safe operation(2)
D.International Electrical Symbols
Low Battery Earth Ground
Warning Double Insulation
AC current Diode
DC current Buzzer
Fuse
Conforms to Standards of European Union.
AC or DC
6
Model UT30B/C/D/F: OPERATING MANUAL
7
Model UT30B/C/D/F: OPERATING MANUAL
E.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“VΩmA”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: ø5x20-315mA, 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).
E.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)
8
Model UT30B/C/D/F: OPERATING MANUAL
9
Model UT30B/C/D/F: OPERATING MANUAL
F.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
1V
UT30B UT30C UT30D UT30F
(0.5%+2)
(0.8%+2)
1. DC Voltage
F.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
2V
20V
200V
500V
100µV
1mV
10mV
100mV
1V
UT30B UT30C UT30D UT30F
(1.2%+10)
(1.2%+3)
(1.2%+3)
(1%+3)
10
Model UT30B/C/D/F: OPERATING MANUAL
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