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Job functions Applications Recommended clamp
Power Quality
Electrical and Field
Service Technician
Measuring non-linear loads
• Setup and troubleshoot variable frequency
drives and UPS systems—Verify correct
operation by measuring key power quality
parameters
Harmonic measurements
• Uncover harmonic issues that can damage
or disrupt critical equipment
Troubleshooting start-up current issues
• Check start-up current where spurious
resets or nuisance circuit breaker tripping
occurs
Load studies
• Verify electrical system capacity before
adding loads
345 Power Quality Clamp Meter
Key features
• AC/DC current: Clamp-on measurement of current up to
1400 A ac rms and 2000 A dc
• CAT IV 600 V rated for use at the service entrance
• Accurate in noisy environments: Using low-pass
filter, the clamp meter performs even with distorted
waveforms
• Data logging: Identify intermittent faults by logging any
power quality parameter for minutes, or over a month
• Troubleshoot harmonics: Analyze and log harmonics
digitally or graphically
• Inrush current: Capture and analyze nuisance tripping,
from 3 seconds to 300 seconds
• CAT IV 600 V, CAT III 1000 V
HVAC/R Technician
Electrical Engineer
Commercial Electrician
Facility Maintenance
Electrician
Electric Utility Engineer
High-End Industrial Utility
Industrial Service
Electrician
Service panel, service entrance and low
voltage vaults
• In the service panel, clamp around each
individual phase. Good for large single or
parallel conductors
• In the service entrance, clamp around
busbars, up to 2.5 in, to verify expected
current usage
• Measure current in conductors of low-
voltage vaults (1000 V or less)
Working with large loads
• Verify operation of large load service
panels, switchgears, large current DC
systems and motors
355 True-rms 2000 A Clamp Meter
Key features
• Up to 2000 A dc, 1400 A ac current measurement
• Large jaw suitable for single or multiple large
conductors
• CAT IV 600 V rated for maximum application versatility
• Inputs for 600 V ac, 1000 V dc, 400 KΩ resistance and
continuity
• Low pass filter, min/max/avg and inrush current
• Accurately measure frequency of current and voltage up
to 1 kHz
• CAT IV 600 V, CAT III 1000 V
Electrical Contractor
Electric Utility Technician
Marine or Welding
Electrician
Facility Maintenance
Electrician
HVAC/R
HVAC/R Service
Technician
Checking boilers and furnaces
• Capture flue gas temperatures and perform
flame rod testing
HVAC motors and drives
• Measure start and run motor capacitors
• Troubleshoot compressor electrical motor
faults
• Measure performance of variable frequency
drives
Testing electrical performance
• Measure load-side and supply-side current
and voltage
• Measure current and voltage phase balance
on 3 phase systems
902 True-rms HVAC Clamp Meter
Key features
• Measure current up to 600 A ac and up to 200 µA dc
• Measure true-rms voltage, capacitance, resistance and
continuity
• Measure contact temperature with included Type-K
temperature probe. (Or measure the outside temperature
of a pipe with the 80PK-8 Pipe Clamp Temperature
Probe, sold separately)
• CAT III 600 V
Genuine Fluke Accessories
When your job depends on every tool in your toolbox, Genuine
Fluke Accessories keep you working.
Visit www.uke.com/accessor y to search our accessory
inventory by product model, accessory model or category.