Tenma 72-14630 Operating Manual

72-14630
Overview
The Tenma 72-14630 Bench Top Digital
features a 4 1/2 digit display with a maximum reading
of 19999. The large backlit LCD makes measurements
easy to read. The well-featured meter also provides
full range overload protection and dual power sources
(AC or DC battery). The unit can be used to test
AC/DC voltage, AC/DC current, resistance, frequency,
capacitance, temperature (Celsius), hFE transistors,
diode, and continuity test.
This operating manual includes relevant precautions and
safety information. Please read it carefully and strictly
observe all the Warnings and Safety Notes contained in
this manual.
Unpacking Inspection
Open the package and take out the unit. Check the
following items carefully to see if there is any missing or
damaged. If you find anything missing or damaged,
please contact your local dealer immediately.
● Operating Manual
● Test Lead
● Short Test Lead with Alligator Clip
● K Type Temperature Probe
(Only applicable to test below 230℃)
● Socket Adaptor
● Power Adapter
(110VAC 60Hz (US) , 9VDC 200mA)
Safety Notes
This unit is designed and produced in strict compliance
with IEC61010-1 code. As a unit with double insulation
over-voltage protection, it complies with the safety
standard contained in CAT II 1000V and Pollution
Degree II codes. Any failure to follow the operating
instruction contained in this manual may impair or void
the protection it has.
1 . Before use, the unit and test leads should be closely
inspected. If there appears to be any damage to either the
meter or test leads, do not attempt to use either. Do not use
the meter if the cover is removed, as it exposes the user to
the risk of electric shock.
2. If test leads are damaged, they must be replaced with
the one having identical model or electrical specifications.
3. Do not touch fingers or bare skin to any bare cables,
connectors, unused terminals, or circuits while being
tested.
4. When the meter is used at an effective voltage over 60V
in DC or 30V in AC, special care should be taken as there
is a danger of electric shock.
5. If the scope of the input value remains unknown, just
switch to the maximum range for testing.
6. No voltage or current exceeding the rated voltage or
current indicated by the unit should be applied between
test leads or between test lead and ground.
7. The rotary switch should be placed in the right position
and no changeover of range should be made during
measurement so as to prevent the damage of the unit.
8. Do not use or store the unit in an enviroment with high
temperatures, high humidity, flammable materials,
or excessive exposure to magnetic or radioactive field.
9. The internal wiring of the unit should not be
tampered with or altered. Doing so will likely
the unit and increase risk of electric shock.
10. Replace the battery as soon as the battery
indicator " " appears. When working under a low
battery, the unit might produce false readings that can
lead to electric shock or personal injury.
11. Turn the unit off when it is not in use and take out
the battery in case it will not be used for a long time.
General Specifications
1. Maximum voltage between terminal input and
COM: 1000V (except for 200mV, 250V)
2. μA mA terminal input protection: (CE)250mA 265V
auto recovery fuse
3. 10A terminal input protection: (CE)F1 (10A H
1000V) Fast type melted fuse Φ10.3x38mm
4. Resistance input protection: PTC/250V
5. Capacitance input protection: (CE) F2, F3
(0.5A H 250V) quick-blow fuse
6. Frequency input protection: PTC/1000V
7. Temperature input protection: (CE)0.5A 1000V
fuse
8. terminal input protection: PTC/1000V
9. hFE input protection: (CE)250mA 265V auto
Multimeter
recovery fuse, F3 (0.5A H 1000V) Fast type melted
fuse Φ6.35x31.8mm
10. Display: Full functional LCD, maximum reading is
19999, refreshing 2-3 times per second
11. Range: Manual
12. Polarity display: Auto
13. Over-range indication: 1
14. Low battery indication:"
15. Operating temperature: 0~40℃ (32℉~104℉ )
16. Storage temperature: -10~50℃ (14℉~122℉)
17. Relative humidity: 0℃~30℃ ≤75%；30℃~ 40℃
≤50%
18. Electromagnetic compatibility: Under a radio
frequency field of 1V/m, overall accuracy = specified
accuracy + 5% of the range; No specified accuracy if
the unit is put under a radio frequency field of more
than 1V/m.
19. Power supply: AC (External power adapter
AC110V/ DC9V-200mA) or DC (Battery Size
1 Copy
R14/1.5V×6 PCS)
1 pair
20. Product size: (300×245×105) mm
1 pair
21 .Product Net Weight: about 1500g (accessories
1 piece
not included)
22. Safety Compliance: IEC 61010: CATII 1000V
1 piece
LCD Display
1 piece
1. Manual Range
2. Warning!
3.
4.
5.
6.
7.
8.
9.
10. Decimal Number Showing the readout
11. Measurement units
Unit of voltage: millivolt, volt
Unit of current: microampere,
milliampere, ampere
Unit of electrical resistance: Ohm,
kilohms, megohm
Unit of electrical capacity: nanofarad,
microfarad
Unit of frequency: Kilohertz
Unit of temperature: Celsius degree
Unit of triode amplification: times
Functions
Terminal Input
72-14630
damage
Functional Buttons
Operational Guide (See Diagram 1, 2, 3)
5x20mm
"
Manual range indicator
Warning indicator
Low Battery
Indicator for high voltage
Indicator for negative reading
Indicator of AC voltage or
current (No display for DC
voltage or current)
Data hold activated
Test of diode
Continuity buzzer on
Explanation
DC voltage measurement
AC voltage measurement
Resistance measurement
Diode/continuity test using
buzzer
Frequency measurement
mA/μA for DC current measurement
A for DC Current measurement
mA/μA for AC current measurement
A for AC current measurement
Capacitance measurement
(Use socket adaptor)
Temperature measurement
(Use socket adaptor)
Triode amplification times
measurement
(Use socket adaptor)
Power switch
Backlight on or off (battery powered, backlight remain
on about 10 seconds before auto shut down.)
Press Hold to enter or exit the hold mode when in
any mode, the meter beeps.