Greenlee 93-97 User manual

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.

11
93-97 / 00220
Resistance Measurement
1. Shut off and lock out the power. Make sure all capacitors are fully
discharged. Voltage must not be present.
2. Plug the black test lead in to the COM terminal. Plug the red test lead into
the VΩterminal.
3. Set the selector switch to Ω.
4. Connect the test lead tips together. Make a note of the test lead resistance.
5. Connect the test leads to the component or circuit. Read the display.
Subtract the test lead resistance found in Step 4 to find the actual
resistance of the component or circuit.
Do not connect the meter to a source of voltage or current when the
selector switch is in the Ωposition. Damage to the meter can result.

12
Continuity Check
Do not connect the meter to a source of voltage or current when the
selector switch is in the position. Damage to the meter can
result.
1. Shut off and lock out the power. Make sure all capacitors are fully
discharged. Voltage must not be present.
2. Plug the black test lead in to the COM terminal. Plug the red test lead into
the VΩterminal.
3. Set the selector switch to .
4. Press . The and Ωicons will appear.
5. Connect the test leads to the circuit. The buzzer will sound if the
resistance of the circuit is less than 50Ω.

13
93-97 / 00220
Diode Check
Do not connect the meter to a source of voltage or current when the
selector switch is in the position. Damage to the meter can
result.
1. Shut off and lock out the power. Make sure all capacitors are fully
discharged. Voltage must not be present.
2. Plug the black test lead into the COM terminal. Plug the red test lead into
the VΩterminal.
3. Set the selector switch to .
4. Press . The icon will appear.
5. Connect the test leads to the diode. The expected display for a diode in
good condition is approximately as follows:
Germanium-Based Diode Silicon-Based Diode
Forward-Biased .025 volts - 0.45 volts 0.40 volts - 0.90 volts
Reverse-Biased OL OL
Note: A forward-biased reading of 000 (short circuit) or OL indicates that
the diode is faulty.
A reverse-biased reading of 000 (short circuit) or any numeric value
indicates that the diode is faulty.

14
DC Voltage
Range Resolution Accuracy Over-voltage Protection
300mV 100µV
3V 1mV 1100V DC or
30V 10mV ±(0.5% + 2 digits) 1100V peak-to-peak
300V 100mV
1000V 1V
Input Impedence: 10MΩ
AC Voltage
3V 1mV ±(1.3% rdg. + 5 digits)*
30V 10mV 1100V DC or
300V 100mV ±(1.3% rdg. + 5 digits) 1100V peak-to-peak
750V 1V 40Hz to 500Hz
Input Impedence: 10MΩ< 100pF
* Frequency Response: 40Hz~300Hz for 3V Range

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93-97 / 00220
DC Current
Range Resolution Accuracy Voltage Burden
300µA 0.1µA±(1% rdg. + 2 digits) 200mV max.
3mA 1µA±(1.2% rdg. + 2 digits) 2V max.
30mA 10µA±(1% rdg. + 2 digits) 200mV max.
300mA 0.1mA ±(1.2% rdg. + 2 digits) 2V max.
10A 10mA ±(2% rdg. + 3 digits) 2V max.
Overload Protection: 1A/500V fast blow fuse for µAmA input, 10A/500V
for Ainput
AC Current
300µA 0.1µA 200mV max.
3mA 1µA±(1.5% rdg. + 3 digits) 2V max.
30mA 10µA 200mV max.
300mA 0.1mA ±(2% rdg. + 3 digits) 2V max.
10A 10mA ±(2.5% rdg. + 5 digits) 2V max.
Overload Protection: 1A/500V fast blow fuse for µAmA input, 10A/500V
for Ainput
Frequency Response: 40Hz~500Hz

16
Diode Check and Continuity
Range Resolution Accuracy Max. Test Current Max. Open Cir. Volt.
1mV ±(1.5%rdg. 1.5mA 3.3V
+ 5 digits)*
Overload Protection: 500V AC/DC RMS max. Continuity: Buzzer will sound when
* For 0.4V~0.8V. resistance is less than 50Ω.
Resistance
Range Resolution Accuracy Overload Protection
300Ω0.1Ω±(1.2% rdg. + 4 digits)
3KΩ1Ω
30KΩ10Ω±(1% rdg. + 2 digits) 500V DC or
300KΩ100Ω500V RMS
3MΩ1KΩ±(1.5% rdg. + 3 digits)
30MΩ10KΩ±(2.5% rdg. + 5 digits)
Open Circuit Voltage: 1.3V approximate

17
93-97 / 00220
Specifications
Display: LCD (Liquid Crystal Display)
• 3-1/2 digits with maximum reading of 3200
• 65-segment bar graph
• icons
Accuracy: ±(% reading + number of digits) at 73.4°F ±9°F
(less than 75% relative humidity)
±(% reading + number of digits) at 23.0°C ±5°C
(less than 75% relative humidity)
Polarity Indication: positive implied, negative indicated
Overrange Indication: OL or -OL
Low battery indication:
-+
Sampling: digital: 2 times per second
analog bar graph: 12 times per second
Overload Protection: 1A/500V fast blow fuse for µAmA input
10A/500V fuse for Ainput
Auto Power Off: Approximately 10 minutes after last switch
or function change
Operating Temperature: 32°to 104°F (-0°to 40°C)
Storage Temperature: -4°to 140°F (-20°to 60°C)
Temperature Coefficient: 0.083 x (specific accuracy)/°F, <64.4°F or >82.5°F
0.15 x (specific accuracy)/°C, <18°C or >28°C
Relative Humidity: 0% - 80%
Power Requirements: two AAA-size 1.5 volt batteries
Battery Life: 1000 hours typical (with alkaline battery)
Dimensions: 3.31 x 6.89 x 1.22 in (84 x 175 x 31 mm) without
holster
3.74 x 7.56 x 1.97 in (95 x 192 x 50 mm) with holster
Replacement Parts: Test Leads (pair) - Greenlee Part Number 500 0125.6
Protective Holster - Greenlee Part Number 500 0411.5
Fuse: 1A/500V - Greenlee Part Number 918 6844.0
Fuse: 10A/500V - Greenlee Part Number 918 6843.2

18
MAINTENANCE
General
• Keep unit clean and dry.
• Wipe clean with damp cloth. Let
dry completely before using.
Battery Condition
Battery level is low when
-
+
appears on display.
Battery Replacement (Fig. 2)
1. Disconnect the test leads from
item being tested and turn meter
off. Unplug leads from front
terminals. Remove unit from protective holster.
2. Position meter face down on clean, flat surface. Remove the three screws
from case back.
3. Lift the bottom end of the case back until it gently unsnaps from the case
front at the top end near the display.
4. Lift the battery holder out of the meter and carefully remove the batteries.
5. Install two new AAA (1.5V) alkaline batteries. Be sure the leads will not be
pinched when case is reassembled.
6. Replace case back. Make sure all gaskets are properly seated and the
two snaps at the top are engaged. Replace the screws and tighten firmly.
Do not overtighten.
Do not attempt to repair this test instrument. It contains no user-
serviceable parts.
Failure to observe this precaution can result in injury and can damage
the instrument.
Battery
Holder
Batteries (2)
Case Bac
k
Case Front
Fig. 2

19
93-97 / 00220
Fuse Replacement (Fig. 3)
Do not attempt to repair this test instrument. It contains no user-
serviceable parts.
Failure to observe this precaution can result in injury and can damage
the instrument.
IMPORTANT
Use only properly rated fuses when replacement is necessary. See the
Specifications section of this manual.
1A/500V
Fuse
10A/500V
Fuse
Battery Holder
2 x 1.5V AAA
Circuit
Board
Case Back
Case Front
1. Follow Steps 1 through 3 under
Battery Replacement.
2. After unfastening case back,
carefully turn unit over and lift up
on case front to reveal circuit
board. Do not remove the screws
from the circuit board.
3. Remove defective fuse by gently
prying one end of the fuse loose
and sliding the fuse out of the
holder.
4. Install a new fuse of same size
and rating. Check that new fuse is centered in fuse holder.
Fig. 3

20
Lifetime Limited 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.
5. Check rotary switch and circuit board switch - both should be in the OFF
position.
6. Replace circuit board and case front. Turn unit over. Be sure the battery
leads will not be pinched when case is reassembled. Reassemble case
halves; make sure all gaskets are properly seated and the two snaps at
the top are engaged. Replace the screws and tighten firmly. Do not
overtighten.