Elenco 3 1-2 Digit Cap- Trans- Freq User Manual

(9) Data Hold

Press the “D.HOLD” button on the meter to enter the data hold mode and press this
button again and the meter exits the data hold mode.

(10) Auto Power Off and Disable

1. When the meter has been turned on for 15 minutes without any action from the users,
the meter will automatically turn itself off.

2. To disable the Auto Power Off function, press any button when the meter is on or
switch the selector switch.

OPERATOR’S

INSTRUCTION MANUAL

M-2795

4. Care and Maintenance

4-1. Caring for Your Multimeter

Your digital multimeter is an example of superior design and craftsmanship. The following
suggestions will help you care for the multimeter so you can enjoy it for years.

1. Keep the multimeter dry. If it gets wet, wipe it dry immediately. Liquids can contain
minerals that can corrode electronic circuits.

2. Use and store the multimeter only in normal temperature environments. Extreme
temperatures can shorted the life of electronic devices, damage batteries, and distort
or melt plastic parts.

3. Handle the multimeter gently and carefully. Dropping it can damage the circuit boards
and case and can cause the multimeter to work improperly although the holster can
provide enough protection.

4. Keep the multimeter away from dust and dirt, which can cause premature wear of
parts.

5. Wipe the multimeter with a damp cloth occasionally to keep it looking new. Do not
use harsh chemicals, cleaning solvents, or strong detergents to clean the multimeter.

6. Use only fresh batteries of the required size and type. Always remove old or weak
batteries. They can leak chemicals that destroy electronic circuits.

4-2. Maintenance

9V Battery Replacement

1. Make sure that the instrument is not connected to any external circuit. Set the
selector switch to the OFF position and remove the test leads from the terminals.

2. Remove the screws from the bottom case and lift the case. Remove the spent battery
and replace it with a battery of the same type.

Fuse Replacement

Remove the screws from the bottom case and lift the case. Replace the fuse with the
same type and rating: 5 x 20mm 0.5A/250V fast-blow fuse or 5 x 20mm 10A/250V
fast-blow fuse as the replacements.

ElencoTMElectronics, Inc.

150 W. Carpenter Avenue

Wheeling, IL 60090

[phone]

http://www.elenco.com

e-mail: [e-mail]

DIGITAL MULTIMETER

Copyright © 2003 ElencoTMElectronics, Inc.

! WARNING !

PLEASE READ THIS INSTRUCTION MANUAL
CAREFULLY

Misuse and/or abuse of this instruction cannot be prevented by
any printed word and may cause injury and/or equipment
damage.
Please follow all these instructions and measurement
procedures faithfully, and adhere to all standard industrial
safety rules and practices.
The multimeter shall be used in over voltage category II !

1. Safety Information

To ensure that the meter is used safely, follow all of the safety and operation
instructions in this manual. If the meter is not used as described in the
manual, the safety features of the meter might be impaired.

• Turn off the power to the circuit under test before cutting, unsoldering, or
breaking the circuit. Small amounts of current can be dangerous.

• Use caution when working above 60VDC or 30VAC rms. Such voltages
pose a shock hazard.

• When using the test lead, keep your fingers behind the guards on the test
lead.

• Disconnect the live test lead before disconnecting the common test lead.

• To avoid damage to the meter, do not exceed the input limits.

• This digital multimeter is designed for indoor use only.

• This digital multimeter has a measuring deviation of 2.3% by immunity test
according to EN50082-1.

-2- -7-

(3) Resistance Measurement and Diode, Continuity Test

1. Connect the black test lead to the “COM” socket and the red test lead to the “VWCAP”

socket.

2. Set the selector switch to the desired “W”, “ ” or “ ” position.

3. Remove the power from the equipment under test, connect the probes across the
circuit to be tested.

CAUTION: Be sure that the circuit to be tested is “dead”. Max.input overload: 250Vrms
and <10sec.
NOTE: When testing 400M
then test.

W

resistance, short the test leads and press the “REL” button,

(4) Capacitance Measurement

1. Before testing, discharge the capacitor by shorting its leads together. Use caution in
handling the capacitors because they may have a charge on them of considerable
power before discharging.

2. Connect the black test lead to the “COM” socket and the red test lead to the “VWCAP”
socket.

3. Set the selector switch to the “F” position.

4. Press the “REL” button. You can use the relative function to eliminate the zero error.

5. Connect the probes across the capacitor to be tested.

NOTE: When testing a 200

m

F capacitor, note that there will be approx. 30 sec. time lag.

(5) Frequency and Duty Cycle Measurement

1. Connect the black test lead to the “COM” socket and the red test lead to the “VWCAP”
socket.

2. Set the selector switch to the “Hz” or “Duty” position.

3. Connect the probes across the source or load under measurement.

4. When using the 80KP-2 Adapter, the correct reading should be the reading on the
LCD display times 128.

(6) hFE Test

1. Set the selector switch to the desired “hFE” position (PNP or NPN type transistor).

2. Never apply an external voltage to the hFE sockets. Damage to the meter may result.

3. Plug the transistor directly into the hFE socket. The socket is labeled E, B, and C for
Emitter, Base, and Collector.

4. Read the h

FE (beta or DC current gain) in the display.

(7) Logic (TTL/CMOS) Test

1. Connect the black test lead to the “COM” socket and the red test lead to the “VWCAP”
socket.

2. Set the selector switch to the desired “TTL” or “CMOS” position.

3. Connect the probes across the source or load under measurement.

4. With a logic high pulse (1), the indicator will display on LCD. With a logic low pulse
(0), the indicator will appear on the LCD.

(8) Relative Value Display

Press the “REL” button on the meter to use the relative measurement mode. The
present value will be stored in memory. The new display value is equal to the
measurement value minus the stored value.

Example:

When you test the capacitance, you can use the Relative function to eliminate the
zero error.