TENMA UT60C User Manual

Digital Multimeter
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Table of Contents
Title Page
A. Selecting a Measurement Range ----------------------------------------------------------------------------- 9 B. Manual Ranging and Autoranging ---------------------------------------------------------------------------- 9
Measurement Operation
A. DC Voltage Measurement -------------------------------------------------------------------------------------- 10 B. AC Voltage Measurement -------------------------------------------------------------------------------------- 11 C. Measuring Resistance ------------------------------------------------------------------------------------------ 12 D. Testing for Continuity ------------------------------------------------------------------------------------------ 13 E. Testing Diodes ---------------------------------------------------------------------------------------------------- 14 F. Capacitance Measurement ------------------------------------------------------------------------------------ 15 G. Frequency Measurement -------------------------------------------------------------------------------------- 16 H. Measuring Duty Cycle ------------------------------------------------------------------------------------------ 17 I. Temperature Measurement
(Model UT60C) -------------------------------------------------------------------------------------------------- 18
J. DC or AC Current Measurement ------------------------------------------------------------------------------ 18 Operation of Hold Mode ------------------------------------------------------------------------------------------- 20 The Use of Relative Value Mode ------------------------------------------------------------------------------- 20 The POWER Button --------------------------------------------------------------------------------------------------- 21 The BLUE Button ----------------------------------------------------------------------------------------------------- 21 Turning on the Display Backlight ------------------------------------------------------------------------------- 21 Sleep Mode (Model UT60C) --------------------------------------------------------------------------------------- 21 General Specifications ------------------------------------------------------------------------------------------- 21 Accuracy Specifications
A. DC Voltage ------------------------------------------------------------------------------------------------------- 22
B. AC Voltage ------------------------------------------------------------------------------------------------------- 22
C. Resistance ---------------------------------------------------------------------------------------------------- 22
D. Continuity Test -------------------------------------------------------------------------------------------------- 23
E. Diode Test ----------------------------------------------------------------------------------------------------- 23
F. Capacitance 23
G. Frequency & Duty Cycle -------------------------------------------------------------------------------------- 23
H. Temperature (Model UT60C) --------------------------------------------------------------------------------- 24
I. DC Current ------------------------------------------------------------------------------------------------------ 24
J. AC Current --------------------------------------------------------------------------------------------------------- 24 Maintenance
A. General Service -------------------------------------------------------------------------------------------------- 25
B. Testing the Fuses ------------------------------------------------------------------------------------------------ 25
C. Replacing the Battery ------------------------------------------------------------------------------------------ 26
D. Replacing the Fuses ------------------------------------------------------------------------------------------ 27
Digital Multimeter
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Overview
This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly.
Warning
To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe Operation” carefully before using the Meter.
Digital Multimeter Model UT60C (hereafter referred to as “the Meter”) has autorange and manual range options with maximum reading 3999. The enclosure structure design adopted advanced “co-injection” technique in order to provide sufficient insulation.
In addition to the conventional measuring functions, there is a RS232C standard serial port equipped with Model
for easy connection with computer to realize macro recording and monitoring and capture of transient dynamic data, displaying change of waveform during the measurement, providing data and evidence to engineering technicians for scientific research. This is also a highly applied digital multimeter of good performance with full overload protection and backlight function. also has true rms reading for AC voltage and AC current measurements.
Except where noted, the descriptions and instructions in this Operating Manual apply to all UT60C.
Unless otherwise identified, all figures show the .
Unpacking Inspection
Open the package case and take out the Meter. Check the following items carefully to see any missing or damaged part:
Item Description Quantity
1 Operating Manual 1 piece 2 Test Lead
1 pair
3 Test Clip 4 Model UT60C Point Contact Temperature Probe
1 piece
5 9V Battery (NEDA1604, 6F22 or 006P) (installed) 6 : RS232C Interfact Cable 7 : CD-ROM (Installation Guide & Computer Interfact Software)
In the event you find any missing or damage, please contact your dealer immediately.
Digital Multimeter
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Safety Information
This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. III 1000V, CAT. IV 600V;)and double insulation.
CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than CAT. IV
CAT IV: Primary supply level, overhead lines, cable systems etc.
Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired.
In this manual, a Warning identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test.
A Note identifies the information that user should pay attention on.
International electrical symbols used on the Meter and in this Operating Manual are explained on page 6.
Rules For Safe Operation (1)
Warning
To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the equipment under test, adhere to the following rules:
Before using the Meter inspect the case. Do not use the Meter if it is damaged or the case (or part of the case) is removed. Look
for cracks or missing plastic. Pay attention to the insulation around the connectors.
Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads
with identical model number or electrical specifications before using the Meter.
Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and
grounding.
The rotary switch should be placed in the right position and no any changeover of range shall be made during
measurement is conducted to prevent damage of the Meter.
When the Meter working at an effective voltage over 60V in DC or 30V rms in AC, special care should be taken for
there is danger of electric shock.
Use the proper terminals, function, and range for your measurements.
Do not use or store the Meter in an environment of high temperature, humidity, explosive, inflammable and strong magnetic field.
The performance of the Meter may deteriorate after dampened.
When using the test leads, keep your fingers behind the finger guards.
Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, current, or
capacitance.
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Before measuring current, check the Meter’s fuses and turn off power to the circuit before connecting the Meter to the circuit.
Replace the battery as soon as the battery indicator ”
“ appears. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury.
Remove test lead, temperature probe, RS232C interface cable and test clip from the Meter and turn the Meter power off before
opening the Meter case.
When servicing the Meter, use only the same model number or identical electrical specifications replacement parts.
The internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident.
Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing. No abrasive and solvent should be
used to prevent the surface of the Meter from corrosion, damage and accident.
The Meter is suitable for indoor use.
Under the environment with high (+/-4kV) electrostatic discharge, the Meter may not be operated as normal condition. The user
may require resetting the Meter.
Please take out the battery when it is not being used for a prolonged period to avoid damages to the Meter.
Please constantly check the battery as it may leak when it has been using for some time, replace the battery as soon as leaking
appears. Aleaking battery will damage the Meter.
International Electrical Symbols
AC (Alternating Current) Deficiency of Built-In Battery
DC (Direct Current) Continuity Test
AC or DC Diode
Grounding Capacitance Test
Double Insulated Fuse
Warning, Refer to the Operating Manual
Conforms to Standards of European Union
Digital Multimeter
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The Meter Structure (see figure 1)
1. LCD Display.
2. Functional Buttons.
3. Rotary Switch.
4. HzV Input Terminal:
Input for voltage, frequency/duty cycle, resistance, diode, continuity and capacitance measurements.
5. COM Input Terminal:
Return terminal for all measurements.
6. : µAmA Input Terminal:
Input for 0.1 µA to 400.0mA current measurements. Model UT60C µAmA°C Input Terminal: Input for 0.1 µA to 400.0mA current measurements and temperature testing.
7. 10A Input Terminal:
Input for 0.01A to 10.00A current measurements.
Digital Multimeter
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Rotary Switch
Below table indicated for information about the rotary switch positions.
Rotary Switch
Position
Function
DC voltage measurement range from 400.0mV to 1000V or AC voltage measurement range from 4.000V to 750.0V.
Continuity test.
Diode test.
Resistance measurement range from 400.0to 40.00MΩ. Capacity test range from 40.00nF to 100.0µF.
Model UT60C Temperature in Celsius from -40°C to 1000°C.
Hz
Frequency measurement range from 10.00Hz to 10.00MHz. AC or DC current measurement range from 400.0µA to 4000µA.
AC or DC current measurement range from 40.00mA to 400.0mA. AC or DC current measurement range from 4.000A to 10.00A.
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Below table indicated for information about the functional button operations.
Button
Measuring
Function
Operation Performed
Power
Any rotary
switch
position
Turn the power on and off.
Switches between AC and DC voltage; the Meter beeps. DC is default.
: Switches between continuity and diode and resistance measurements; the Meter beeps. Resistance is default.
Model UT60C Switches between continuity and diode and resistance and capacitance measurements; the Meter beeps. Resistance is default.
Switches between AC and DC current range from 400.0 A to 4000 A; the Meter beeps. DC is default.
Switches between AC and DC current range from 40.00mAto
400.0mA; the Meter beeps. DC is default.
Switches between AC and DC current range from 4.000Ato 10.00A; the Meter beeps. DC is default. Disable Sleep Mode feature.
Functional Buttons (2)
Range
Any rotary
switch
position
exceptHz
and
Press RANGE to enter the manual ranging mode; the Meter beeps. Manually selecting a range causes the Meter to exit the Hold and REL modes.
Press RANGE to step through the ranges available for the selected function; the Meter beeps.
Press and hold RANGE for 2 seconds to return to autoranging; the Meter beeps.
Hz %
Hz
1. Press to start the frequency counter; the Meter beeps.
2. Press again to enter duty cycle mode; the Meter beeps.
3. Press again to return to the frequency counter mode; the Meter beeps.
1. Press to start the frequency counter; the Meter beeps.
2. Press again to enter duty cycle mode; the Meter beeps.
3. Press again to return to the previous measurement mode; the Meter beeps.
REL
Any rotary
switch
position
except Hz
Press REL
to enter and exit the REL mode in any measuring mode except in frequency/duty
cycle; the Meter beeps.
Hold
Any rotary
switch
position
Press HOLD
to enter and exit the Hold mode in any mode, the Meter beeps.
Functional Buttons (1)
Digital Multimeter
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Display Symbols (1) (see figure 2)
Number Symbol Meaning
1 AC
Indicator for AC voltage or current. UT60C The displayed value is the mean value. : The displayed value is the true rms value.
2 TRMS The : Indicator for true rms value.
3 AUTO
The Meter is in the auto range mode in which the Meter automatically selects the range with the best resolution.
4 RS232C
Data output. It is always on the LCD, but data output is only in progress when the Meter is connected to the computer via the included RS232C Interface Cable.
5 % Percent: Used for duty cycle measurements.
6 H Data hold is active.
7 The REL is on to display the present value minus the stored value.
8
The battery is low.
Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator appears.
9 Centigrade. The unit of temperature.
10 Test of diode
11 The continuity buzzer is on.
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Number Symbol Meaning
12 to 16
, k,
M
: Ohm. The unit of resistance. k: kilohm. 1 x 10
3
or 1000 ohms.
M: Megaohm. 1 x 10
6
or 1,000,000 ohms.
F, µF,
nF
F: Farad. The unit of capacitance. mF: Microfarad. 1 x 10
-6
or 0.000001 nF: farads.z Nanofarad. 1 x 10
-9
or 0.000000001 farads.
Hz, kHz, MHz
Hz: Hertz. The unit of frequency in cycles/second. kHz: Kilohertz. 1 x 10
3
or 1,000 hertz.
MHz: Megahertz. 1 x 10
6
or1,000,000 hertz.
V, mV
V: Volts. The unit of voltage. mV: Millivolt. 1 x 10
-3
or 0.001 volts.
A, mA,
µA
A: Amperes (amps). The unit of current. mA: Milliamp. 1 x 10
-3
or 0.001 amperes.
µA: Microamp. 1x 10
-6
or 0.000001
amperes.
17 Indicates negative reading.
18
The input value is too large for the selected range.
Display Symbols (1) (see figure 2)
Measurement Ranges (1)
A measurement range determines the highest value the Meter can measure. Most Meter functions have more than one range. See “Accuracy Specifications.”
A. Selecting a Measurement Range
Being in the right measurement range is important:
If the range is too low for the input, the Meter displays to indicate an overload.
If the range is too high, the Meter will not display the most accurate measurement.
B. Manual Ranging and Autoranging
The Meter has both manual range and autorange options:
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