Greenlee 93-604 User manual

999 2229.0 © 1998 Greenlee Textron IM 1305 REV 1 3/98
93-604 MULTIMETER
Español; p. 21
Français; p. 41
BAT
OFF
DCV
DCA
ACV
ACA
Ω
20A mA COM V/Ω
Read and understand this material before operating
this meter. Failure to understand how to safely operate
the meter could result in an accident causing serious
injury or death.
INSTRUCTION MANUAL

2
Safety Alert Symbol ........................................................................................3
Safety Information ...................................................................................... 4-5
Description......................................................................................................6
Features ..........................................................................................................7
Operation
Preparation For Use ...................................................................................8
Voltage Measurement ................................................................................9
Current Measurement ..............................................................................10
Resistance Measurement .........................................................................11
Continuity Check ......................................................................................12
Diode Check .............................................................................................13
Battery Check ...........................................................................................14
Specifications.......................................................................................... 15-18
Maintenance
Replacing the Battery or Fuse ..................................................................19
Warranty .......................................................................................................20
Versión en español .......................................................................................21
Version française ..........................................................................................41
TABLE OF CONTENTS

93-604 Multimeter
3
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.
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.
SAVETHESE INSTRUCTIONS
Additional copies of this manual are available upon request at no extra charge.

4
• Do not use the meter if it is wet or damaged. Electric shock can
result.
• Do not apply more than 500 VAC/VDC between any terminal and
earth ground. Electric shock can result.
• Do not attempt to measure more than 750 VAC or 1000 VDC. Electric
shock can result.
• Do not measure current in circuits with more than 250 VAC/VDC or
in circuits which have a maximum load exceeding 4000 VA and fuse
protection greater than 16 amps. Electric shock can result.
• Do not connect the meter to a source of voltage or current when the
range selector is in an Ωor the position. Electric shock
can result.
• Do not use for IEC 664 Overload Range III installations. Electric
shock can result.
Failure to observe these warnings may result in serious injury or death.
SAFETY INFORMATION
Electric shock hazard:
Contact with live circuits can result in severe
injury or death.

93-604 Multimeter
5
• Do not open the case while the test leads are connected to the
circuit or while the meter is on. Damage to the meter can result.
• 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 attempt to repair this test instrument. It contains no
user-serviceable parts.
• Do not expose meter to extremes in temperature or high humidity.
Damage to the meter can result. See Specifications section of this
manual.
Failure to observe these precautions may result in minor injury and/or
damage to this instrument.
SAFETY INFORMATION (cont’d)
• Use only properly rated fuses when replacement is necessary.
See the Specifications section of this manual.
• Replace weak or discharged batteries as soon as either of these
conditions is detected.
• This meter is not equipped with an EMI shield. Using this meter in
areas with high-frequency fields nearby may cause inaccurate
readings.

6
DESCRIPTION
The measurement functions and ranges are as follows:
AC Voltage: 0–750 volts AC Current: 0–20 amps
DC Voltage: 0–1000 volts DC Current: 0–20 amps
Resistance: 0–20 megohms
Continuity Check
Diode Check
Battery Check: 1.5-volt and 9-volt batteries
PURPOSE
This instruction manual is intended to familiarize operators with the safe operation of the
Greenlee 93-604 Multimeter. This manual should be kept available to all operating personnel.

93-604 Multimeter
7
FEATURES (Fig. 1)
1. Digital Display
• 3-1/2 LCD readout (maximum reading is ‘1999’)
• over-range indication (“1” or “-1” appears at far left of the display)
• automatic polarity indication
•
-+
low battery icon.
2. Selector Switch
Used to select the desired range or function:
• AC or DC voltage • AC or DC current
• Resistance • Continuity Check
• Diode Check • Battery Check (for 1.5-volt and 9-volt batteries)
3. V/ΩInput Terminal
• positive (+) input terminal for voltage and resistance measurements, and for continuity,
diode and battery checks
4. COM Input Terminal
• negative (–) input terminal for voltage, current, and resistancemeasurements, and for
continuity, diode and battery checks.
5. mA Input Terminal
• positive (+) input terminal for current
measurements up to 200 mA.
6. 20A Input Terminal
• positive (+) input terminal for current
measurements between 200 mA and
20 A.
Fig. 1
BAT
OFF
DCV
DCA
ACV
ACA
Ω
20A mA COM V/Ω
1
2
3
4
5
6

8
OPERATION
Preparation For Use
Before using the test instrument, check the meter with a functioning circuit or component. If
the test instrument fails to perform as expected, refer to the following troubleshooting list until
the problem is solved:
1. Plug the test leads completely into the input terminals.
2. Remove corrosion from the lead tips and connectors.
3. Replace the battery.
4. Replace the test leads.
5. Send the test instrument in for repair. See the Warranty section of this manual for shipping
instructions.

93-604 Multimeter
9
Do not attempt to measure more than 750 VAC or 1000 VDC. Electric
shock can result.
Failure to observe this warning may result in serious injury or death.
Voltage Measurement
Electric shock hazard:
Contact with live circuits can result in severe
injury or death.
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.
1. Plug the black test lead into the COM input terminal, and plug the red test lead into the
V/Ωinput terminal.
2. Set selector switch to the appropriate range.
Note: When measuring an unknown voltage, start at the highest range.
3. Touch the test leads to the circuit under test and read the display.
Note: If the resolution of the reading is not satisfactory, disconnect the meter from the circuit
and switch to the next lower range. Reconnect the meter to the circuit and read the
display. Repeat this procedure until the resolution is satisfactory.

10
Do not measure current in circuits with more than 250 VAC/VDC or in
circuits which have a maximum load exceeding 4000 VA and fuse
protection greater than 16 amps. Electric shock can result.
Failure to observe this warning can result in serious injury or death.
Current Measurement
Electric shock hazard:
Contact with live circuits can result in severe
injury or death.
1. Shut off and disconnect power to the circuit to be tested.
2. Open the branch of the circuit where the current is to be measured.
3. Plug the black test lead into the COM input terminal, and plug the red test lead into the
appropriate current input terminal.
Note: When measuring an unknown current, start with the red test lead plugged into the
20A input terminal.
4. Set selector switch to the appropriate ACA or DCA range.
Note: When measuring an unknown current, start at the 20A range.
5. Connect the test leads to the circuit.
6. Apply power to the circuit under test and read the display.
Note: A current measurement of 20 amps must not exceed 30 seconds and may not be
repeated more frequently than 15-minute intervals.
Note: 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 to the circuit and read the display.
Repeat this procedure until the resolution is satisfactory.
Note: If the range selector must be changed from 20A range to the 200 mA range to obtain
finer resolution, you must also unplug the red test lead from the 20A input terminal and
plug it into the mA input terminal.
7. Shut power off and disconnect the meter from the circuit.
8. Reconnect the circuit.