Extech 382060 Instruction Manual
User's Manual
Clamp-on Power Datalogger
Model 382060
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EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and
WARRANTY
workmanship for one year from date of shipment (a six month limited warranty applies on sensors and
cables). If it should become necessary to return the instrument for service during or beyond the warranty
period, contact the Customer Service Department at (781) 890-7440 for authorization. A Return
Authorization (RA) number must be issued before any product is returned to Extech. The sender is
responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit.
This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring,
operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech
specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not
be liable for any direct, indirect, incidental or consequential damages. Extech's total liability is limited to
repair or replacement of the product. The warranty set forth above is inclusive and no other warranty,
whether written or oral, is expressed or implied.
Introduction
Congratulations on your purchase of the Extech 382060 True RMS Clamp-on Power
Meter. This device measures True RMS Voltage, Current, Power, Frequency,
Resistance/Continuity, and Phase Angle. The built-in datalogger stores up to 1600
readings. Optional PC software permits meter-to-PC data transfers. An optional 3-phase
adapter provides kW, kVA, or PF measurements of unbalanced loads. Careful use of
this meter will provide years of reliable service.
Safety
• Read the following safety information carefully before using or servicing the meter
• Do not exceed the maximum input limits published in the specifications below.
• Never measure current while the test leads are inserted in the meter's input jacks.
• Do not use the meter or the test leads if either appears damaged.
• Use extreme caution when working near bus bars or bare conductors.
• Built-in safety protection may be impaired if meter is not used per user's manual.
• Use caution when working with voltages above 60VDC or 30VAC RMS.
• Before resistance/continuity measurements, disconnect power/loads from the circuit.
WARNING: This indicates that a potentially hazardous condition which, if not avoided, could
result in death or serious injury.
CAUTION: This indicates that a potentially hazardous condition which, if not avoided,
could result in injury or damage to the meter.
This symbol, adjacent to another symbol or terminal, indicates the user must
refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal use, hazardous
voltages may be present
Double insulation
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Specifications
General Specifications
Environmental conditions
• Installation Category III
• Pollution degree 2
• Altitude up to 2000 meters
• Indoor use only
• Relative Humidity 80% max.
• Ambient temperature: 32 to 104 o F (0 to 40o C)
Maximum voltage 600Vrms
Operational design Dual slope integration
Display 4-digit (9999 count) LCD display
Bargraph 40 segment display
Over range Indication LCD displays "OL"
Low battery Indication Battery symbol display for low operating voltage
Sampling rate 10 times per second (bargraph); 2 times per second (LCD)
Auto power off After 30 mins. of inactivity
Power supply 9V Alkaline Battery (10 hour approximate battery life)
Jaw size Cable Φ46mm, 1.8”
Operating Temperature 32 to 104o F (0 to 40o C)
Operating RH <80% RH non-condensing
Storage Temperature 14 to 140o F (-10 to 60o C)
Dimensions 10.2 x 3.7 x 1.8" (260 x 93 x 45mm)
Weight 16.6 oz. (470g) with battery (approx.)
Accessories 9V battery, Test Leads, Carry Case
Optional Accessories PC Software and Cable (382062); 3-Phase Adapter (382061)
Function Specifications
Accuracy: ± (% reading + no. of digits) at 64 to 82o F (18 to 28o C) with RH% <80%
True Power (kW)
Range* Resolution Accuracy Frequency
2kW to 600kW 0.1kW ± (2% + 5d) 40 to 400Hz
*Minimum voltage: 100V AC, Minimum Current: 20A AC
Apparent Power (kVA)
Range* Resolution Accuracy Frequency
2kW to 600kVA 0.1kVA ± (2% + 5d) 40 to 400Hz
*Minimum voltage: 100V AC, Minimum Current: 20A AC
Cos φ (Power Factor)
Range* Resolution Accuracy Frequency Range Sensitivity
0.30 to 1.00 ± 0.05
0.00 to 0.30
*Minimum voltage: 100V AC, Minimum Current: 20A AC
DC Current
Range Resolution Accuracy
1000A 0.1A ± (2% + 5d)
AC Current (True RMS)
Range Resolution Accuracy Frequency
1000A 0.1A ± (2% + 10d) 40 to 400Hz
0.01
Not spec.
10Hz to 60Hz >100V / 10A
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Peak Indication
Range Resolution Accuracy Acquisition time
1000A 0.1A
600V 0.1V
± (2.5% + 10d)
≤ 200ms
≤ 100ms
DC Voltage
Range Resolution Accuracy Input Resistance
600V 100mV ± (0.75% + 2d)
1MΩ
AC Voltage (True RMS)
Range Resolution Accuracy Frequency Input Z
600V 100mV ± (1.2% + 10d) 40 to 400Hz
1MΩ
Resistance
Range Resolution Accuracy
10kΩ 1Ω
± (1% + 5d)
Frequency
Range* Resolution Accuracy Sensitivity
1kHZ 0.1Hz ± (0.5% + 5d) 10V or 10A
*Minimum Current: 10A AC
Overload Protection
Function Overload protection
kW, kVA, PF, DCV, ACV, Peak ACV 750Vrms
DCA, ACA, Peak ACA 1100A
Continuity, Diode, Resistance 660Vrms
Frequency 750Vrms or 1100A
Crest Factor (ACA, ACA): 5*
* For sinusoidal waveforms. Additional errors for non-sinusoidal signals are: 1 to 3 (0.5%), 3
to 5 (3%), 5 to 7 (6%)
Audible Continuity: Audible tone sounds when resistance is less than 100Ω ±10%
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