Greenlee 93-70 Guida utente
999 1961.3 © 1995 Greenlee Textron Inc. IM-1245 10/95
DIGITAL MULTI-TESTER
OPERATION, MAINTENANCE AND
SAFETY INSTRUCTIONS
93-70/00628
P–HD–H
R S T
BAT
AC MK
KHz
A
°C °F
GREENLEE
Cat./UPC No. 93-70/00628
Read and understand this material before operating.
Failure to understand how to safely operate the tester
could result in an accident causing serious injury or
death. This tester should only be operated by qualified
personnel.
Español; p. 17
Français; p. 33
2
DANGER
HIGH
VOLTAGE
CAUTION
SAFETY INFORMATION
Follow operating instructions carefully.
Contact with live circuits can cause serious injury or death.
Do not use meter if wet or damaged.
To avoid electric shock, do not perform any service or maintenance other
than that described in these instructions. Always disconnect test leads
before opening case.
To avoid personal injury and possible damage to the meter, never connect
a source of voltage with the rotary function switch in Ω(ohms) position.
To avoid electric shock, hazard or damage to meter do not apply voltage
exceeding the over voltage rating of the function between any terminals of
the instrument.
Failure to observe these warnings may result in serious injury or death!
• Observe proper safety precautions when working with voltages above 50V DC or 25V AC
RMS. These voltage levels pose a shock hazard to the user.
• If the meter is used near equipment that generates electro-magnetic interference the
display may be unstable or indicate incorrect measurement values.
• Use only the correct, properly rated fuses, when replacement is necessary.
• Disconnect test leads from items being tested before changing rotary function selector.
• Do not store instrument in hot, 135°F (57°C) and above, or humid areas.
• Replace weak or discharged battery as soon as it is detected (see Maintenance
information).
• Use only for specified use and capacities.
Failure to observe these warnings may result in minor injury and/or
damage to the instrument!
PACKING LIST
The following items should be packed with the multimeter unit:
Item # Part # Qty. Description
1 500 0409.3 2 Test Leads - 1 Black, 1 Red
2 500 0842.0 3 RST Leads, 1 ea. - Black, Red, Yellow
3 999 1961.3 1 IM-1245, Instruction Manual
4 500 0841.2 1 Protective Holster
93-70 Digital Multi-Tester
3
GREENLEE
Cat./UPC No. 93-70/00628
A
C
H
B
E
F
G
I
J
D
P–HD–H
R S T
KHz
°C °F
BAT
AC MK
A
Fig. 1
FEATURES (Fig. 1)
•Digital Display - 3-1/2 digit LCD read-out, 1999 maximum reading; indicates AC voltage and
current, DC voltage and current, resistance, frequency, diode, continuity, temperature and
phase sequence. Also indicates overload (OL), low battery (BAT) and automatic polarity.(A)
•Power Switch - Turns unit on and off. (B)
•Display Hold (D-H) - Captures a stable measurement and holds it on the display.*(C)
•Peak Hold - Displays maximum reading when testing AC voltage or current.* (D)
•Rotary Selector Switch - Selects function and test range. (E)
•Temperature Probe Connection - For K-Type probe connection for temperature measure-
ment. (F)
•VΩInput Terminal - For DC and AC voltage, resistance, frequency, diode, continuity and
phase sequence indicator (using Black Lead in T terminal). (G)
•COM Input Terminal - The ground input terminal or the input terminal for phase sequence
indicator (using yellow lead in S terminal). (H)
•mA, µAInput Terminal - For current measurement, plus input terminal for phase sequence
indicator (using red lead in R terminal). (I)
•10A Input Terminal - For current measurement above 200mA and below 10A, positive (+)
terminal. (J)
•Auto Off - Tester will automatically shut off after approximately 26 minutes.
* See Feature Usage in OPERATION section for information about using these features.
4
OPERATION
Preparation for Measurement
1. Set rotary switch to desired function before connecting test leads to item being tested.
2. Always disconnect test leads from item being tested before changing the rotary function
selector.
3. If the unit is used near equipment that generates electro-magnetic interference, the display
may be unstable or indicate incorrect measurement values.
Feature Usage
•Peak Hold - Utilized with AC Voltage or Current measurements, this function holds the
peak measurement on the display. Push Peak Hold (P-H) before taking measurement. P-H
will appear on the display. Take measurement and the maximum rms value will appear on
the display. Push Peak Hold button again to turn off this feature.
•Data Hold - Push this button (D-H) when taking a measurement and the measurement
value shown at time button is pushed will be held on the display.
Voltage Measurement
IMPORTANT: Please refer to Safety Information about exceeding voltage maximums.
1. Connect the black test lead to the COM terminal and the red test lead to the VΩterminal.
2. Set the rotary selector switch to the AC Vor DC Vposition for the range you are
testing.
NOTE: If measuring an unknown voltage, start at the highest range then adjust to the proper
lower range for best resolution.
3. Connect the test leads across the source or load being measured. The polarity of the red
lead connection will be indicated at the same time the voltage is displayed.
Current Measurement
1. Connect the black test lead to the COM terminal and the red test lead to the mA terminal for
a maximum of 200mA. For a maximum of 10A, connect the red test lead to the 10A
terminal.
2. Set the rotary switch to the desired AC (A) or DC (A) range.
NOTE: If measuring an unknown current, start at the highest range then adjust to the proper
lower range for best resolution.
3. Turn off power to item being tested. Connect the test leads in series with the load being
measured.
4. Turn on power to item being measured and read value on display. Turn off power again
before disconnecting leads.
Diode Check
IMPORTANT: Before taking any in circuit measurement remove power from the circuit and
discharge all capacitors in the circuit.
1. Set the rotary switch to position and A will be shown on the display.
93-70 Digital Multi-Tester
5
2. Connect the black test lead to the COM terminal and the red test lead to the VΩterminal.
NOTE: The polarity of the red test lead is +.
3. Connect test leads across the diode to check.
4. The forward voltage drop on LCD should be approximately 0.3~0.9 V. If the LCD reads OL
(over range), reverse the lead connection.
Continuity Test
IMPORTANT: Before conducting this test be sure there is no voltage present in the circuit.
Please refer to Safety Information before proceeding.
1. Connect the black test lead to the COM terminal and the red test lead to the VΩterminal.
2. Set the rotary selector switch to the 200 position.
3.` Connect the test leads across the two points being measured. The value of the resistance
will appear on the display.
4. If the resistance is less than approximately 30Ω, the unit will produce a continuous tone in
addition to displaying the value.
Resistance Measurement
IMPORTANT: Before conducting this test the device being tested should be turned off, any
capacitors should be discharged and voltage should not be present. Please
refer to Safety Information before proceeding.
1. Connect the black test lead to the COM terminal and the red test lead to the VΩterminal.
NOTE: The polarity of the red test lead is +.
2. Set the rotary selector switch to the Ωposition for the range you are testing.
NOTE: If measuring an unknown resistance, start at the highest range then adjust to the
proper lower range for best resolution.
3. Connect the test leads across the resistance being measured. The resistance value will
appear on the display.
Frequency Measurement
1. Connect the black test lead to the COM terminal and the red test lead to the VΩterminal.
2. Set the rotary switch to the Hz position.
3. Connect the test leads across the source or load under measurement. The frequency value
will appear on the display.
Phase Sequence Indication
IMPORTANT: When connecting leads to a 3 phase system, turn off power, connect leads and
then restore power to take reading.
1. Set the rotary switch to the RST position.
2. Connect the red test lead to the Rterminal, the yellow test lead to the Sterminal and the
black test lead to the Tterminal. The buzzer will sound and will appear on the display.
6
3. Check that power is not present in system. Then connect the test leads to the 3-phase AC
circuit. Restore power to take reading.
4. One of the following results should appear on the display:
a. A right arrow symbol - the circuit is positive phase sequence.
b. A left arrow symbol - the circuit is negative phase sequence.
c. No arrow - the three phase circuit is only sending two phase voltage.
Temperature Measurement
1. Set the rotary selector switch to the °For °Cposition.
2. Connect probe plug to Temperature Input Connector.
NOTE: Uses standard Type K thermocouple (NiCr/Ni) probes; see below for Greenlee probe
information.
3. Place probe tip in contact with item being measured. The temperature will appear on the
display.
Greenlee Temperature Probes (Type K, NiCr/Ni)
For use with 93-70 digital MultiTester and 93-1062 Digital Thermometer, plus other devices
using Type K probes.
5794-75TIP/34942 - Replacement Tip for 5794-75 Liquid Probe.
Cat./UPC No. 5791/34558 5792/34559 5793/34560 5794/34561
5794-75/34562
5795/34563
Probe Tip
Application Pipe Air/Gas Semi-Solid Liquid Liquid Surfaces
Range °F-58 - +572 -58 - +1112 -58 - +1112 -58 - +2012 -58 - +2012 -58 - +842
(°C) (-50 - +300) (-50 - +600) (-50 - +600) (-50 - +1100) (-50 - +1100) (-50 - +450)
To Measure Heat System Exhaust, Meats, Water, Water, Stove Plates,
Temp. of Components Fumes, etc. Foods, etc. Oil, etc. Oil, etc.
Heat Units, etc.
Response 5 sec. 5 sec. 12 sec. 12 sec. 12 sec. 6 sec.
Length or Max. Pipe Dia. 5" 5" 5" 29-1/2" 5"
Capacity
1-3/8" (35 mm)
(130 mm) (130 mm) (130 mm) (750 mm) (130 mm)
93-70 Digital Multi-Tester
7
SPECIFICATIONS
Display: Liquid Crystal Display (LCD) 3-1/2 digit plus icons. Maximum
reading of 1999.
Polarity Indication: Automatic, displays “–” for negative.
Sampling: 2.5 times per second
Overload Protection: 10A/600V 0.3Ø x 38 mm, 0.5A/250V 5Ø x 20 mm
Overrange Indication: OL appears on display
Low Battery: BAT appears on display
Auto Power Off: After approximately 26 minutes
Power Requirements: 1 - 9V battery, shipped installed in unit
Operating Temperature: 32°to 104°F (0°to 40°C)
Storage Temperature: 14°to 140°F (-10°to +60°C)
Relative Humidity: 0% to 80% operating; 0% to 70% storage
Dimensions: Approx. 7-3/8" x 3-3/8" x 1-1/2" (186 x 86 x 39 mm),
without protective holster
Weight: Approximately .88 lb. (400 g)
8
DC Voltage
Range Resolution Accuracy Over-voltage Protection
200mV 100µV±(0.5% + 1 digit)
2V 1mV 1000V DC
20V 10mV ±(0.5% + 3 digits) 750V rms AC
200V 100mV
1000V 1V
Input Impedence: 10MΩ
AC Voltage (40 Hz ~ 500 Hz)
200mV 100µV±(0.5% rdg. + 5 digits)
2V 1mV 1000V DC
20V 10mV ±(1.2% rdg. + 5 digits) 750V rms AC
200V 100mV
750V 1V ±(1.5% rdg. + 5 digits)
Input Impedence: 10MΩ
93-70 Digital Multi-Tester
9
DC Current
Range Resolution Accuracy Voltage Burden
200µA 100nA
2mA 1µA±(1.2% rdg. + 2 digits) <0.7V
20mA 10µA
200mA 100µA
10A 10mA ±(2.5% rdg. + 3 digits) <0.3V
Overload Protection: 0.5A/250V Fuse, less than 200mA; 10A/600V Fuse for 10A Range
AC Current (40 Hz ~ 500 Hz)
200µA 100nA
20mA 10µA±(1.5% rdg. + 3 digits) <0.7V
200mA 100µA
10A 10mA ±(3% rdg. + 1 digit) <0.3V
Overload Protection:
0.5A/250V Fuse, less than 200mA; 10A/600V Fuse for 10A Range
10
Diode Check
Range Resolution Test Voltage Test Current Overload Protection
1mV 3.3V max. 0.7mA AC/DC 500V rms
Continuity
Range Resolution Sound Open Voltage Overload Protection
0.1Ω<30Ω3.3V max. AC/DC 250V rms
Resistance
Range Resolution Accuracy Overload Protection
200Ω0.1Ω±(1.2% rdg. + 4 digits)
2KΩ1Ω
20KΩ10Ω±(1% rdg. + 2 digits) AC/DC
200KΩ100Ω500V rms
2MΩ1KΩ
20MΩ10KΩ±(3% rdg. + 5 digits)
Open Circuit Voltage: >0.3V, except 200Ωwhich is max. 3.3V
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1
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