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FL.UKE ®

Scopemeter Portable

Oscilloscopes 190 Series II

Application driven

Find problems in industrial systems including:
• Circuit voltage!current overloading
• Attenuation/input impedance mismatch
• Signal fluctuation/drift
• Conditioning circuits signal integrity
• Test point verification for critical signals
• Input/output/feedback timing issues
• Induced noise and disturbances
• Random shutdownslreset

A range of application notes is available. Diagnose VFDs* or power inverters
See the Fluke website.
and converters

• Harmonics. transients and loads in three phase power input
• Troubleshoot dc to ac converters for faulty control circuits or

output IGBT gate stages
• Cable interface - test PWM output for reflections

and transients
• Vpwm measurement to measure the effective voltage on

drive outputs
• Determine V/Hz ratio to find outif that fits the specification

of the motor.

Included Accessories Applications made visible with

Fluke 190 Series II 4-channel instruments include a simple push of a button.

a set of four I?robes. hanging strap. handstrap. USB Vpwm measurements
cable with mmi-B connector. double capacity Ii-ion The output signal of a VFD is very complex. When selecting the
battery BP291. battery charger/power adapter BC190. Vpwm function, the ScopeMeter automatically switches over to
a FlukeView demo package and users manuals on a dedicated piece of software which is capable of analyzing the
CD-ROM. waveform.
The 2-channel models come with two probes plus a
set ofTL175 test leads and a single capacity battery VoltlHerz ratio measurements
BP290. The output torque for a motor is determined on the basis of the
The 190-504 also includes 4 pcs TRMSO coaxial ratio of the motor's applied voltage and frequency, known as
feedthrough terminator. the Volts per Hertz (V/Hz) ratio. Failure to maintain the proper
ratio will have influences on the motor torque. the speed of
Ordering Information the shaft and the motor noise. Next to that the motor will
draw more current leading to an increased temperature. For a
Fluke-190-504 Color ScopeMeter (500 MHz. 4 channel) motor to produce its rated torque at variable speeds, it also is
Fluke-190-504lS Color ScopeMeter (500 MHz. 4 channel). necessary to control the voltage and frequency supplied to the
motor. AVFD maintains a preset V/Hz ratio in supplying power
with SCC290-kit to a motor at the variable speeds. This critical V/Hz ratio can be
Fluke190-502 Color ScopeMeter (500MHz. 2 Channel) monitored by a special function which is part of the readings.
Fluke190-502lS Color ScopeMeter (500MHz. 2 Channel).
Power measurements
with SCC290-kit With today's fluctuations on the power grid it is important
Fluke-190-204 Color ScopeMeter (200 MHz. 4 channel) to get detailed information about parameters such as Power
Fluke-190-204lS Color ScopeMeter (200 MHz. 4 channel). Factor. VA and VA reactive. The ScopeMeter can measure these
factors with a push of the button.
with SCC290-kit
Fluke-190-202 Color ScopeMeter (200 MHz. 2 channel) POWER on AD
Fluke-190-202lS Color ScopeMeter (200 MHz. 2 channel).
M41aSUl'Cl.enta:
with SCC290-kit
,,,,,,,--- Fluke-190-104 Color ScopeMeter (100 MHz. 4 channel) mnmP_lIr Factor lAC coup Ilid)
Fluke-190-104lS Color ScopeMeter (100 MHz. 4 channel).
UA lAC coup Ilid)
with SCC290-kit
Fluke-190-102 Color ScopeMeter (100 MHz. 2 channel) UA Reactive lAC Ilid)
Fluke-190-102lS Color ScopeMeter (100 MHz. 2 channel).

with SCC290-kit
Fluke-190-062 Color ScopeMeter (60 MHz. 2 channel)
Fluke-190-0621S Color ScopeMeter (60 MHz. 2 channel).

with SCC290-kit

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