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.

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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
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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.

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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.

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Resistance 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.
Do not connect the meter to a source of voltage or current when the
range selector is in an Ωposition. Electric shock can result.
Failure to observe this warning may result in serious injury or death.
1. Shut off and disconnect the power. Make sure all capacitors are discharged. Voltage must
not be present.
2. Plug the black test lead into the COM input terminal, and plug the red test lead into the
V/Ωinput terminal.
3. Set the selector switch to the lowest resistance range (200 Ω).
4. Touch the test lead tips together. The meter should display “0”. If the meter does not
display a “0”, make a note of the reading.
5. Set range selector to the appropriate resistance range.
Note: If measuring an unknown resistance, set the range selector to the 20M range.
6. Touch the test leads to the component under test and read the display.
Note: For a total resistance of 0.5 megohms or more, allow several seconds for the display to
stabilize.
7. Subtract the value obtained in step 4 from the reading on the display to find the actual
resistance.

12
Continuity Check
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 connect the meter to a source of voltage or current when the
range selector is in the position. Electric shock can result.
Failure to observe this warning may result in serious injury or death.
1. Shut off and disconnect the power. Make sure all capacitors are discharged. Voltage must
not be present.
2. Plug the black test lead into the COM input terminal, and plug the red test lead into the
V/Ωinput terminal.
3. Set selector switch to the position.
4. Touch the test leads to the circuit under test.
5. The buzzer will sound continuously if the resistance of the circuit is lower than approxi-
mately 100Ω.
Note: The display will not correspond to the circuit resistance.

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Diode Check
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 connect the meter to a source of voltage or current when the
range selector is in the position. Electric shock can result.
Failure to observe this warning may result in serious injury or death.
1. Shut off and disconnect the power. Make sure all capacitors are discharged. Voltage must
not be present.
2. Plug the black test lead into the COM input terminal, and plug the red test lead into the
V/Ωinput terminal.
3. Set selector switch to the position.
4. Touch the test leads to the diode under test. The expected display is approximately as
follows:
Note: Any other reading indicates that the diode is defective.
Germanium-Based Diode Silicon-Based Diode
Forward-Biased 250 mV - 450 mV 600 mV - 900 mV
Reverse-Biased “1” or “–1” (at the left side “1” or “–1” (at the left side
of the display) of the display)

14
BATTERY CHECK
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: To measure the voltage of a 1.5-volt battery, set the range selector to BAT 1.5V.
To measure the voltage of a 9-volt battery, set the range selector to BAT 9V.
3. Touch the red test probe to the positive (+) terminal of the battery, and touch the black test
probe to the negative (–) terminal of the battery.
4. Read the display.
Note: The voltage on the display is the voltage of the battery under load. The load current
for the 9 V battery is approximately 20 mA. The load current for a 1.5 V battery is
approximately 40 mA. The display value corresponds with the battery’s residual voltage.

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15
SPECIFICATIONS
Display: 3-1/2 digit LCD (liquid crystal display)
with a maximum reading of 1999
Polarity Indication: positive implied, negative indicated
Sampling: 2.5 times per second
Low Battery Indication:
-+
is displayed when the battery voltage drops below
the operating voltage
Overload Indication: “1” or “-1” at the left side of the display
Operating Temperature
and Humidity: 41 – 122°F (5 – 50°C) maximum relative humidity:
70%, without condensation
Storage Temperature
and Humidity: -4 – 140°F (-20 – 60°C) maximum relative humidity:
80%, without condensation
Power Requirements: 9V battery (6F 22 006P) Alkaline
Fuses: 20A/250V quick blow
200 mA/250 V quick blow
Dimensions: 6.93 x 3.19 x 1.18 in. (17.6 x 8.1 x 3.0 cm)
Weight: 7.41 oz (210 g)
Accuracy: +/– (% of reading + number of digits)
see the following specification tables for accuracies
of specific functions
Accessories: Test leads (pair) Greenlee part no. 500 2461.2
Protective Holster Greenlee part no. 500 2464.7
Fuse, Ceramic, 20A/250V Greenlee part no. 500 2465.5
Fuse, 200mA/250V Greenlee part no. 500 2466.3

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DC Voltage
Range Resolution Accuracy Overload Protection
200 mV 100 µV +/– (0.8% + 2 digits) 500 VDC; 15 seconds max.
2V 1 mV
20 V 10 mV +/– (0.8% + 2 digits) 1000 VDC
200V 100 mV
1000V 1 V +/– (0.8% + 3 digits)
Input Impedance: 10 MΩ, < 100 pF
AC Voltage (50 Hz – 400 Hz)
Range Resolution Accuracy Overload Protection
20 V 10 mV
200 V 100 mV 750 VAC RMS
750 V 1 V +/– (1.0% + 5 digits)
Input Impedance: 10 MΩ, < 100 pF
+/– (0.8% + 5 digits)

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Direct Current
Range Resolution Accuracy Overload Protection
2 mA 1 µA
20 mA 10 µA 200mA/250V fuse
200 mA 100 µA +/– (1.0% + 2 digits)
20 A 10 mA +/– (1.2% + 5 digits) 20A/250V fuse
Burden voltage: 500 mV maximum in the 20 A range
350 mV maximum in all other ranges
Maximum voltage: 250 volts maximum when measuring current
Alternating Current (50 Hz – 400 Hz)
Range Resolution Accuracy Overload Protection
2 mA 1 µA
20 mA 10 µA +/– (1.0% + 5 digits) 200mA/250V fuse
200 mA 100 µA
20 A 10 mA +/– (2.0% + 5 digits) 20A/250V fuse
Burden voltage: 500 mV maximum in the 20 A range
350 mV maximum in all other ranges
Maximum voltage: 250 volts maximum when measuring current
Resistance
Range Resolution Accuracy Overload Protection
200 Ω0.1 Ω
2 KΩ1 Ω
20 KΩ10 Ω+/– (0.8% + 3 digits) 500 VDC/VAC RMS
200 KΩ100 Ω
2 MΩ1 K Ω
20 MΩ10 K Ω+/– (1.2% + 5 digits)
Open circuit voltage: 3 VDC in the 200 Ωrange
0.3 VDC in all other ranges
+/– (0.8% + 2 digits)

18
Diode Check
Range Test Current Accuracy Overload Protection
1 mA +/– 0.6 mA +/– (3% + 1 digit) 500 VDC/VAC RMS
Open circuit voltage: 3 VDC
Continuity Check
Range Continuity Threshold Continuity Indication Overload Protection
less than 100ΩAudible Buzzer 500 VDC/VAC RMS
Response time: approximately 100 ms.
Battery Check: 1.5 V (round cell) load current is approximately 40 mA
9V load current is approximately 20 mA

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MAINTENANCE
Replacing the Battery or Fuse (See Figure 2)
1. Disconnect the test leads from the circuit under test and set the range selector to OFF.
Remove the test leads from the meter.
2. Remove the protective boot from the meter.
3. Remove three (3) screws from the case back. Slide the case back off of the meter.
4. Remove and replace the battery or fuse(s) as necessary.
5. Replace case back and reinstall three (3) screws. Do not overtighten.
Fig. 2
Fuses
Battery

20
WARRANTY
Greenlee warrants to the original purchaser of these goods for use that these products will be
free from defects in workmanship and material for their useful life, excepting normal wear and
abuse. This warranty is subject to the same terms and conditions contained in Greenlee’s
standard one year limited warranty.
For all Test Instrument repairs, ship units Freight Prepaid to:
Greenlee Textron
4411 Boeing Drive
Rockford, IL 61109-2932 USA.
Mark all packages: Attention TEST INSTRUMENT REPAIR. For items not covered under
warranty (such as dropped, abused, etc.), repair cost quote available upon request.
Note: Prior to returning any test instrument, please check replaceable batteries or make sure
the battery is at full charge.