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Part Number
125
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Harmonics Mode

Display
Bargraph showing 1st up to 33rd harmonic and DC; amplitude displayed in % relative to fundamental
Analyzed waveform
Voltage waveform(Ch.A), Current wavefrom (Ch.B) or Power (Ch.A x Ch.B), automatically generated
Harmonics frequency range
DC up to 33rd harmonic (for fundamental up to 60 Hz); DC up to 24th harmonic (for fundamental up to 400 Hz)
Measurements
Relative amplitude of individual harmonics; THD in %r or %f

Mechanical And General Specifications

Warranty
3-years on main instrument 1-year on accessories
Weight
1.2 kg
Size
232 x 115 x 50 mm
RS232/USB interface
Optically isolated via optional PM9080 or OC4USB for interfacing to Printer or PC
Battery life
7 hrs using NiMH

Bus Health Test Functions

Bus systems supported
AS-i (EN50295, 166 kb/s); CAN-bus (ISO-11898, up to 1 Mb/s); Interbus S (EIA-485, 500 kb/s); ControlNet (61158 type 2, 5Mb/s); Modbus (EIA-232 up to 115 kb/s and EIA-485 up to 10 Mb/s); Foundation Fieldbus H1 (61158 type 1, 31.25 kb/s); Profibus DP (EIA-485 up to 10 Mb/s); Profibus PA (61158 type 1, 31.25 kb/s); Ethernet 10Base2 (coaxial); Ethernet 10BaseT (UTP, 10 Mb/s); RS-232 (EIA-232, up to 115 kb/s); RS-485 (EIA-485, up to 10 Mb/s); User defined single wire or balanced system
Eyepattern display mode
Gives waveform display of bus signals with display persistence Timebase and attenuator settings may be altered by the user
Measured parameters (where applicable)
Baud rate, Risetime, Fall time, High level, Low level, Bias voltage level, Signal amplitude, Distortion, Jitter
Parameter classification
Default values: well within limits = 'good' within certain percentage of the limit values = 'weak' beyond limit values = 'bad' Limits values, as a default, are based on industry standard for the selected bus type or may be set by the user.
Modes
Waveform Parameter Analysis With Automatic Read-out And Parameter: validation (good / weak / bad); test limits are based on industry standards or may be set by the user Eyepattern display mode
Bus health test
Verifies the electrical parameters of industrial bus systems using automatic measurement and analysis functions. Next to that, an Eyepattern mode is provided for visual inspection of signal quality.

Specifications

Input sensitivity
5 mV - 500 V/div
TrendPlot recording
Automatic vertical scaling and time compression Display the actual, MIN, MAX and AVG reading
Maximum record length
512 min/max pts per input
Memory
20 screens and setups
Oscilloscope bandwidth
40 MHz
Trigger types
Connect-and-View™, Free Run, Single Shot, Edge, Video, External
Scope measurements
Automatic measurements: 26 (all instruments) On top, Fluke 125 has additional measurement functions for Power (W), VA, VAR and Power Factor (PF) for single phase and balanced-three-phase (delta) power systems
Harmonics mode
Capability to analyze the harmonics contents of power signals (see Harmonics Mode Section below for details)
Dual input true RMS meter
VDC, VAC, VAC + VDC, Ohms,Continuity, Diode-test Current, °C, °F, Capacitance, dBV, dBM, Crest Factor, Touch Hold and Zeroset
Cursors
Fluke 125/124: ∆T, 1/∆T, V, ∆V, rise- and fall time
Timebase range
20 ns - 1 min/div
Sample rate
2.5 GS/s repetitive sampling 25 MS/s single shot sampling
Glitch capture
40 ns
Inputs and digitizers
2

Safety Specifications

Electrical safety
600V CAT III (EN61010-1)

Environmental Specifications

Operating temperature
0°C to 50°C
Storage temperature
-20°C to +60°C
Operating altitude
3,000 m

Additional Power Measurement Capabilities

Current measurement
Channel B, using i400s (included) or other compatible current clamp
Measurement types
Watt, VA VAR, Power Factor (PF)
Current clamp or shunt sensitivity
0.1 / 1 / 10 / 100 / 1000 mV/A, 10 mV/mA and 400 mV/A
Voltage measurement
Channel A; using STL120, voltage probe or direct input
Power configuration
Single phase or balanced three-phase (delta-configuration) mains supply