Greenlee 93-808 Guida
OPERATION, SERVICE AND PARTS
INSTRUCTION MANUAL
Read and understand this material before operating
or servicing this meter. Failure to understand how to
safely operate this meter could result in an accident
causing serious injury or death. This meter should
only be operated by qualified personnel.
TRUE RMS
CLAMP-ON METER
93-808
999 2188.0 © 1997 Greenlee Textron Inc. IM 1281 REV 1 3/97
Español; pág. 13
Français; p. 25
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The symbol above is used to call your attention to instruc-
tions 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.
SAFETY ALERT
SYMBOL
93-808 True RMS Clamp-On Meter
3
Safety Information
Follow operating instructions carefully.
Electrical Shock Hazard.
Contact with live circuits will result in severe injury
or death.
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 may
result in severe injury or death.
• Do not use meter if it is wet or damaged. Electric shock or damage to meter
may result.
• Do not perform any service or maintenance other than that described in
these instructions. Electric shock or damage to meter may result.
• Do not touch probe ends. Electric shock may result.
• Do not attempt to measure uninsulated conductors having a voltage greater
than 600V AC/DC. Electric shock or damage to the meter may result.
• Do not connect a source of voltage with the Range Selector Switch in the Ω
(ohms) position. Personal injury or damage to meter may result.
• Turn meter OFF and remove it from the item being tested before replacing
battery. Do not use meter until the back is in place and fastened securely.
Failure to observe these warnings may result in severe injury or death.
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• Replace a weak or discharged battery as soon as it is detected. Incorrect
results may occur.
• Do not use or store this instrument in a high temperature or high humidity
environment. (Operating range: 0°~ 45°C, less than 75% R.H.)
• Do not store the meter in direct sunlight.
• Remove battery before storing meter.
Failure to observe these precautions could result in injury or property
damage.
93-808 True RMS Clamp-On Meter
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Description
The Greenlee 93-808 offers a versatile true RMS clamp-on meter that can
measure AC current, voltage, resistance and continuity. The built-in auto-ranging
function offers up-to-date capability as well as data hold and voltage readings.
Packing List
The following items should be packed with the clamp-on meter:
1 999 2188.0 Instruction Manual IM 1281
2 500 2280.6 Carrying Case
3 500 2096.0 Test Lead Set
4 — 9V Battery
Features (Figure 1)
(1) Digital Display — The digital display has a 3-3/4 digit LCD readout
(maximum reading 3999) plus auto polarity, decimal point, over-range
indication (“OL”), low battery indication, AC and unit icons.
(2) Input Terminals — The black test lead is always connected to the “COM”
input terminal and red test lead is always connected to the “V - Ω” input
terminal when measuring ACV and OHMS.
(3) Drop-Proof Wrist Strap — Prevents the meter from slipping off the hand
while in use.
(4) Function Switch — Slide switch to turn on meter and select V, A or
Ω, function.
(5) Data Hold Switch — Used to hold measured value for all functions.
(6) Trigger — Press the lever to open the jaws. When the pressure on the lever
is released, the jaws will close again.
(7) Jaws — Senses
the current
flowing through
the conductor
under test.
(8) Hand Guard —
Designed to
protect user.
-
+
Fig. 1
˜
~ ~
6
Operation
AC Current Measurement
Electrical Shock Hazard.
Contact with live circuits will result in severe injury
or death.
1. Set the slide switch to the “A” position.
2. Press the trigger to open the jaws. Clamp around one conductor only.
Make sure that the jaws are firmly closed around the conductor.
3. Read the value from the digital display.
AC Voltage Measurement
~
~
Electrical Shock Hazard.
Contact with live circuits will result in severe injury
or death.
1. Set the slide switch to the “V” position.
2. Connect the black test lead to the COM terminal and the red test lead to the
V - Ωterminal.
3. Connect the test leads across the source load being measured.
4. Read the value from the digital display.
93-808 True RMS Clamp-On Meter
7
Resistance Measurement
Never connect a source of voltage with the Range Selector Switch in the
Ω(ohms) position. Personal injury or damage to the tester may result.
Failure to observe this warning can result in severe injury or death.
1. Turn off device to be tested. Discharge any capacitors. Voltage should not
present.
2. Slide switch to the Ωposition.
3. Connect the black test lead to the COM terminal and to red test lead to the
V - Ωterminal.
4. Connect test leads across the resistance being measured. The resistance value
will appear on the display.
Note: Resistance reading should always be taken in parallel with the circuit.
The built-in buzzer sounds if the resistance of the tested circuit is less than 100Ω.
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Electrical Specifications
Accuracy is ±(%reading + number of digits) at 23˚C ±5˚C, with less than 75% R.H.
(1) AC Voltage: Auto-ranging
600V rms
Overload
Range Resolution Accuracy* Protection
* AC Conversion Type: AC Conversions are ac-coupled, true rms responding,
calibrated to the rms valve sine wave input, the basic accuracy is for sine wave at
full scale, for non-sine wave accuracy reference to * * .
** Crest Factor: 1.4 to 2.0, add 0.6% to Accuracy.
2.0 to 2.5, add 2.0% to Accuracy.
Input impedance: 10M Ω// less than 100 PF.
(2) AC Current: Auto-ranging
400A 0.1A ±(1.9%rdg + 5dgt) 50/60 Hz
600A 1A ±(2.9%rdg + 5dgt) 50/60 Hz 800V
Overload
Range Resolution Accuracy* Protection
* AC Conversion Type: AC Conversions are ac-coupled, true rms responding,
calibrated to the rms value sine wave input, the basic accuracy is for sine wave at
full scale, for non-sine wave accuracy refer to * * .
** Crest Factor: 1.4 to 2.0, add 1.0% to Accuracy.
2.0 to 2.5, add 2.5% to Accuracy.
(3) Resistance: Auto-ranging
4K
Ω
1
Ω
40K
Ω
10
Ω
Max. Open Overload
Range Resolution Accuracy* Circuit Voltage Protection
±(2.0%rdg + 9dgt) 1V 600V rms
±(1.2%rdg + 5dgt)
40 Hz ~ 500Hz
400V 100mV
600V 1V
93-808 True RMS Clamp-On Meter
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(4) Instant Continuity Description: Built-in buzzer sounds when
resistance is less than 100 Ω.
(5) Data Hold: Hold display reading for all functions and ranges.
Specifications
Measuring Rate: 4 times per second, nominal
Auto Power OFF: Approximately 30 minutes after function changes
Installation Category: IEC 1010 600V Cat II
Pollution Degree: Level II
Operating Temperature: 0˚C to 45˚C, < 75% R.H.
Storage Temperature: -20˚C to 60˚C, < 80% R.H. (with battery removed)
Temperature Coefficient: 0.2 x (Spec. Acc’y) / ˚C, < 18˚C or > 28˚C
Power Requirement: Single 9V battery (NEDA 1604 or IEC 6LF22)
Battery Life: 200 hours (Alkaline)
Shock Proof: 4 foot drops
Maximum Jaw Opening: 1.65 in. (42mm)
Maximum Conductor Size: 1.57 in. diameter (40mm)
Size: 3.46 x 8.46 x 1.42 in. (88 x 215 x 36 mm)
Weight: 11.29 oz. (320 gms), including battery
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Maintenance
General
• Keep unit clean and dry.
• Wipe clean with a damp cloth. Let dry completely before using.
Battery Condition
• Battery level is low when appears on display.
-
+
Turn meter OFF and remove it from the item being tested before replacing
battery. Do not use meter until the back is in place and fastened securely.
Failure to observe warning may result in severe injury or death.
Battery Replacement (Fig. 2)
1. Disconnect the meter from item being tested. Turn the meter OFF. Unplug
leads from the front terminals.
2. Position the meter face down on a clean, flat surface. Remove two screws
from case back.
3. Gently lift the bottom end of the case back until it unsnaps from the case front.
4. Lift the battery from the case front and carefully unsnap the battery from the
connector leads.
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