Greenlee 93-804 Guide

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.
AC CLAMP-ON METER
93-804
999 2190.1 © 1996 Greenlee Textron Inc. IM 1282 10/96
Español; p. 13
Français; p. 25
ACA
DATA
HOLD
ACV
Ω
DIGITAL
CLAMP
METER
OFF
20
200
600
20
20
20

2
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

AC 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 take measurements greater than 600 ACA or 750 VAC.
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 the meter may result.
•
Turn meter OFF and remove it from the item being tested before replacing
battery. Do not use the meter until the back is in place and fastened securely.
Failure to observe these warnings may result in severe injury or death.

4
• 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°~ 40°C, less than 80% 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.

AC Clamp-On Meter
5
Description
The 93-804 offers ACA, ACV, and Ωcapability for the electrical contractor or
technician. The low battery indicator data hold function and large LCD provide
excellent features for jobsite and residential applications.
Packing List
The following items should be packed with the AC Clamp-on Meter:
1 999 2191.0 Instruction manual IM 1282
2 500 2244.0 Carrying case
3 500 2242.3 Test leads
Features (Figure 1)
(1) Digital Display — The digital
display has a 3-1/2 digit LCD
readout (maximum reading 1999)
auto polarity, over range indication
(“1”), decimal point, low battery
indicator (“BAT”).
(2) Drop-Proof Wrist Strap — Prevents
the meter from slipping off the
hand while in use.
(3) Range Selector Switch — Selects
the function and test range.
(4) Test Lead Slot — holds test lead.
(5) Trigger — Press the lever to open
the jaws. When the pressure on the
lever is released, the jaws will close
again.
(6) Data Hold — Press to hold the
displayed value.
(7) Jaws — Senses the current flowing
through the conductor under test.
(8) - Input Terminal — Ground Input
Connector.
(9) + Input Terminal — Positive input
connector for voltage or resistance. Fig. 1
ACA
DATA
HOLD
ACV
Ω
DIGITAL
CLAMP
METER
OFF
20
200
600
20
20
20
7
5
4
6
3
1
89
2

6
Operation
AC Current Measurement
1. Set the Range Selector Switch to the
proper range (20, 200 or 600 ACA).
Note: If measuring an unknown current,
start at the highest range, then
adjust to the proper lower range
for best resolution.
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 on the digital display.
Press DATA HOLD to hold displayed
value. Press again to release.
Electrical Shock Hazard.
Contact with live circuits will result in severe injury
or death.
Fig. 2
DATA
HOLD

AC Clamp-On Meter
7
AC Voltage Measurement
1. Connect the red test lead to the + input terminal and the black test lead to the
- input terminal.
2. Set the Range Selector Switch to the proper range (250V or 750V).
Note: If measuring an unknown voltage, start at the highest range, then adjust to
the lower range for best resolution.
3. Connect the test leads across the source or load being measured and read the
display. Press DATA HOLD to hold displayed value. Press again to release.
Note: Voltage reading should always be taken in parallel with the circuit.
Electrical Shock Hazard.
Contact with live circuits will result in severe injury
or death.

8
Resistance Measurement
1. Turn off device being tested. Discharge any capacitors. Voltage should not be
present.
2. Connect the red test lead to the + input terminal and the black test lead to the
- input terminal.
3. Set the Range Select Switch to the 2KΩResistance Range.
4. Connect the test leads across the resistance being measured and read the
display. Press DATA HOLD to hold displayed range. Press again to release.
Note: Resistance readings should always be taken in parallel with the circuit.
Never connect a source of voltage with the Range Selector Switch in the
Ω(ohms) position. Personal injury or damage to the meter may result.
Failure to observe this warning may result in severe injury or death.

AC Clamp-On Meter
9
Specifications
Measuring Rate: 3 times per second, nominal
Surge Response Time: 3 seconds
Insulation voltage endurance: 4000 VAC for 1 minute
Operating Temperature: 0˚C ~ 40˚C, < 80% R.H.
Power Requirement: 006P 9 Volt battery
Battery Life: 200 hours typical
Max/Conductor Size: 1-3/8" (35mm)
Size: 8-1/4" (L) x 3" (W) x 1-7/8" (H)
209mm (L) x 77mm (W) x 36mm (H)
Weight: 10 ounces (260 grams)
Electrical Specifications
Accuracy is ±(%reading + number of digits) at 23˚C ±5˚C, less than 80% R.H.
800A
(30 seconds)
Data hold: available for any range.
Overload
Functions Range Resolution Accuracy Protection
20A 10mA ±(3%rdg + 6 dgt)
ACA 200A 100mA ±(2%rdg + 5 dgt)
600A 1A ±(2%rdg + 5 dgt)
200V 0.1 V ±(1.2%rdg + 3 dgt)
750V 1V ±(1.2%rdg + 3 dgt)
2000Ω1Ω±(1%rdg + 2 dgt)
(2KΩ)
DC1000V
AC750Vrms
AC/DC 350Vrms
Ω
ACV

10
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 “BAT” appears on display.
Battery Replacement
Fig. 3
1. Disconnect meter from item being tested. Turn
the meter OFF.
2. Position the meter face down on a clean, flat
surface. Slide the battery cover to remove.
3. Lift the battery out of the battery compartment.
Carefully unsnap the battery from the
connector.
4. Install a new 9V battery by snapping connector
to battery top. Replace battery in battery
compartment. Check leads so that they will not
be pinched when the battery cover is replaced.
5. Replace the battery cover.
Turn meter OFF and remove it from the item being tested before replacing
battery. Do not use the meter until the back is in place and fastened securely.
Failure to observe this warning may result in severe injury or death.
OPEN
BATTERY
COVER
9 V
BATTERY