Introduction
1
The Southwire 23070T MaintenancePRO
™
1000A TrueRMS AC/DC
Clamp Meter measures AC and DC current up to 1000A and offers a
CAT IV 600V/CAT III 1000V safety rating. Other functions include AC
and DC Voltage, Resistance, Continuity, Capacitance, Frequency,
Duty Cycle, Temperature, and Diode Test. A built-in non-contact AC
voltage detector and flashlight provide added convenience. This
meter is fully tested and calibrated and, with proper use, will provide
many years of reliable service.
WARNINGS
• Read, understand and follow Safety Rules and Operating Instructions
in this manual before using this meter.
• The meter’s safety features may not protect the user if not used
in accordance to the manufacturer’s instructions.
• Ensure that the test leads are fully seated in the input jacks and keep
fingers away from the metal probe tips when taking measurements.
• Before changing functions using the selector switch, always
disconnect the test leads from the circuit under test.
• Use only UL listed test leads with the proper safety category rating.
• Comply with all safety codes. Use approved personal protective
equipment when working near live electrical circuits - particularly
with regard to arc-flash potential.
• Use caution when working on or near bare conductors or bus bars.
• Use caution on live circuits. Voltages above 30 V AC RMS,
42 V AC peak, or 60 V DC pose a shock hazard.
• Do not use meter or test leads if they appear damaged.
• Do not use the meter in wet or damp environments or
during electrical storms.
• Do not use the meter near explosive vapors, dust or gasses.
• Do not use the meter if it operates incorrectly.
Protection may be compromised.
• Do not operate meter while Low Battery warning is on.
Replace the battery immediately.
• Verify meter’s operation by measuring known voltage.
• Do not apply voltage or current that exceeds the meter’s
maximum rated input limits.
Input Limits
Function
Maximum Input
Amperage AC/DC
Voltage AC/DC
Frequency, Duty Cycle,
Resistance, Diode Test,
Continuity, Capacitance
Temperature (°C/°F)
1000A AC/DC
1000V AC/DC
600V AC/DC
600V AC/DC
2
Insulated Tip On
Insulated Tip Removed
WARNING:
Operation of meter and test leads is limited to CAT II 1000V when the insulated tip is
removed from the test probes.
Test Leads
General Specifications
Clamp jaw opening
Diode Test
Continuity Test
Low Battery Indication
Display
Over Range Indication
Measurement Rate
Input Impedance
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Operating Altitude
Battery
Auto Power Off
Dimensions/Weight
Safety
1.9” (48mm)
Test current of 1.5mA typical;
Open circuit voltage < 3.2V DC typical
Threshold <50
Ω
±5
Ω
, Test current <0.35mA
is displayed
6000 count backlit LCD
“OL” is displayed
3 readings per second, nominal
10M
Ω
(VAC and VDC)
41° to 104°F (5° to 40°C)
-4° to 140°F (-20° to 60°C)
Max 80% up to 87°F (31°C) decreasing linearly
to 50% at 104°F (40°C)
<80%
7000ft (2000 meters) maximum
One 9V Battery
After approx. 30 minutes
9” x 3” x 1.6” (230 x 76 x 40mm) / 0.69lb (315g)
Complies with UL 61010-1 3rd edition for measurement
CAT IV 600V, CAT lll 1000V, Pollution Degree 2
CAT IV 600V
CAT III 1000V
CAT II
1000V
