Greenlee 93-97 Manuale utente
999 1859.5 © 1997 Greenlee Textron IM 1231 REV 3 12/97
93-97/00220
DIGITAL/ANALOG
AUTORANGING MULTIMETER
Español; p. 21
Français; p. 45
Read and understand this material before
operating or servicing this equipment. Failure
to understand how to safely operate this tool
could result in an accident causing serious
injury or death.
INSTRUCTION MANUAL
AC
DC
-+
HOLD RANGE
µmA
MkΩ
µV
0
5
1
0
1
5
2
0
2
5
3
0
GREENLEE
Digital Multimeter
Cat./UPC No. 93-97/00220
-
2
SAFETY
ALERT
SYMBOL
The symbol above is used to call your attention to instructions concerning
your personal safety. Watch for this symbol. It points out important safety
precautions. It means “ATTENTION! Become alert! Your personal safety is
involved!” Read the message that follows and be alert to the possibility of
personal injury or death.
Hazards or unsafe practices which, if not avoided, COULD result in minor
personal injury or property damage.
Hazards or unsafe practices which, if not avoided, COULD result in severe
personal injury or death.
Immediate hazards which, if not avoided, WILL result in severe personal
injury or death.
3
93-97 / 00220
A person who has not read and does not
understand all operating instructions is not
qualified to operate this tool.
Failure to read and understand safety instructions
can result in injury or death.
SAVE THESE INSTRUCTIONS!
Additional copies of this manual are available upon request at no extra charge.
4
SAFETY INFORMATION
Electric shock hazard.
Contact with live circuits can result in severe
injury or death.
• Do not use the meter if it is wet or damaged. Electric shock can
result.
• Do not apply more than 1000 VDC or 750 VAC between any terminal
and earth ground. Electric shock can result.
• Do not attempt to measure more than 1000 VDC or 750 VAC. Electric
shock can result.
• Do not attempt to measure more than 10 amps. Electric shock can
result.
• Do not open the case while the test leads are connected to the circuit
or while the meter is ON. Electric shock can result.
Failure to observe these warnings can result in severe injury or death.
Do not connect the meter to a source of voltage or current when the
selector switch is in the Ωposition or the position. Damage to
the meter can result.
5
93-97 / 00220
• Do not change the position of the selector switch when the test
leads are connected to a component or circuit. Damage to the meter
can result.
• Do not expose meter to extremes in temperature or high humidity.
Damage to the meter can result. See Specifications section of this
manual.
• Do not attempt to repair this test instrument. It contains no user-
serviceable parts.
Failure to observe these precautions can result in injury and can
damage the instrument.
Description
The Greenlee 93-97 Digital/Analog Autoranging Multimeter is intended to
measure current, resistance, and voltage, and to check diodes and continuity.
The large, easy-to-read 3-1/2 digit LCD display is supplemented by a 65-segment
bar graph and function icons for maximum clarity. Automatic and manual ranging
options and two “Hold” features provide optimal measurement versatility.
Purpose
This instruction manual is intended to familiarize operators with the safe
operation of the Greenlee 93-97 Digital/Analog Multimeter. This manual should
be kept available to all operating personnel.
IMPORTANT
• Using this meter near equipment that generates electro-magnetic
interference can result in unstable or inaccurate readings.
• Use only properly rated fuses when replacement is necessary.
• Replace weak or discharged batteries as soon as either of these
conditions is detected.
6
Features
Digital Display: 3-1/2 digit LCD display (maximum reading is 3200) and
65-segment analog bar graph
Selector Switch: Measurement and range selector
1. A Input Terminal: For current measurements (320 mA - 10 amps)
2. µAmA Input Terminal: For current measurements (less than 320 mA)
3. COM Input Terminal: Negative, ground, or common terminal for all
measurements
4. VΩInput Terminal: For volts, ohms, and diode check
5. RANGE: Selects autoranging or manual ranging
RESET: Restores power after Auto Power Off
6. DELAY : Waits six seconds, then holds the value on the display
7. HOLD : Holds the present value on the display
8. DC/AC: Selects AC or DC current
: Selects continuity or diode
Fig. 1
AC
DC
-
+
HOLD RANGE
µmA
MkΩ
µV
0
5
1
0
1
5
2
0
2
5
3
0
GREENLEE
Digital Multimeter
Cat./UPC No. 93-97/00220
-
Digital Display
Selector Switch
5678
1234
7
93-97 / 00220
Using the Features
AC
DC
-
+
HOLD RANGE
µmA
MkΩ
µV
0
5
1
0
1
5
2
0
2
5
3
0
-
Digital Display
•Range: Press RANGE once to change from autoranging to manual ranging.
The
RANGE
icon will appear, indicating manual ranging. Press RANGE
to select the appropriate measurement range. Press and hold RANGE for
two seconds to return to the autoranging mode. The
RANGE
icon will
disappear from the display.
•Hold: Press HOLD and the
HOLD
icon will appear. The beeper will
emit a tone and the display will be held constant until HOLD is pressed
again.
•Delay Hold: Press DELAY ; after a 6-second delay, the beeper will emit
a tone, the
HOLD
icon will appear, and the meter will sample the value
momentarily and then hold that value on the display. Press HOLD to
exit Delay Hold immediately) or press DELAY again (to exit Delay Hold
after a 6-second delay).
Delay Hold offers more flexibility than Hold. For instance, when measuring
current, use Delay Hold to measure the current after an initial current surge
.
•Auto Power Off: The meter will automatically shut itself off after approxi-
mately 10 minutes of inactivity. Press Reset to turn the meter back on.
•Beep Guard™: The beeper will emit a tone if the test lead is plugged into
the µAmA input terminal while the selector switch is not in the µAor mA
position.
8
Operation
Turn the unit on and allow at least 60 seconds for warm-up.
Self-Test
Before using the meter, test it on a functioning circuit or component. If the
test instrument fails to perform as expected, refer to the following list until
the problem is solved:
1. Test leads are not fully plugged into terminal inputs.
2. The test lead tips or connectors are corroded.
3. The battery is discharged and should be replaced.
4. A test lead is damaged.
5. The test instrument needs service.
Voltage Measurement
1. Plug the black test lead in to the COM terminal. Plug the red test lead into
the V Ωterminal.
2. Set the selector switch to V(for AC) or V(for DC).
3. Connect the test leads to the circuit or component and read the display.
Electric shock hazard.
Contact with live circuits can result in severe
injury or death.
Do not attempt to measure more than 1000 VDC or 750 VAC. Electric
shock can result.
9
93-97 / 00220
Electric shock hazard.
Contact with live circuits can result in severe
injury or death.
Current Measurement
Do not change the position of the selector switch when the test leads
are connected to a component or circuit. Damage to the meter can
result.
10
Current Measurement (cont’d)
1. Shut off and lock out the power.
2. Open the branch of the circuit where the current is to be measured.
3. Plug the black test lead into the COM terminal.
4. Plug the red test lead into the Aterminal (for current measurements
between 320 mA and 10 A) or the µAmA terminal (for current measure-
ments up to 320 mA).
5. Set the selector switch to:
•A(for measurements up to 10A)
•mA (for measurements up to 30 mA)
•µA(for measurements up to 300 µA).
6. Press DC/AC to select DC or AC current. The DC icon ( ) or the
AC icon ( )will appear.
7. Connect the test leads to the circuit.
8. Apply power to the circuit and read the display.
Notes:
• If the resolution of the reading is not satisfactory, shut off power to the
circuit and switch to the next lower range. Turn on the power and read
the display. Repeat this procedure until the resolution is satisfactory.
• For readings of less than 300
µ
A, plug the red test lead into the
µ
AmA
terminal.
9. Shut off power and disconnect the meter from the circuit.
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