123-box
Fluke 123 ScopeMeter, 20 MHz 2-channel handheld oscilloscope and multimeter (discontinued) (123-box)
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About the 123-box
The Fluke 123 is a compact handheld ScopeMeter from Fluke's original 120 Series (123, 124, 125). It combines a two-input 20 MHz digital oscilloscope, a dual-input 5,000-count multimeter and a TrendPlot recorder in one battery-powered instrument for industrial troubleshooting of machines, controls and power systems.
Connect-and-View triggering produces a stable picture of unknown signals such as motor drive and control waveforms without manual setup. One set of shielded test leads (STL120) covers scope, resistance, continuity and capacitance measurements, and the inputs are rated 600 V CAT III.
The 123 talks to a PC or printer through its optical port and an optically isolated RS-232 or USB adapter cable, used with FlukeView ScopeMeter software. Fluke's 123/S kit added that adapter, FlukeView software and a hard carrying case to the basic kit.
The Fluke 123 is no longer made; its successor is the 123B in Fluke's 120B Series, which adds a colour screen, CAT IV 600 V rating and Li-ion battery.
Frequently asked questions
Is the Fluke 123 still made?
No. It was replaced by the Fluke 123B (120B Series), which distributors list as the replacement for the 123.
What software and cable does it use?
FlukeView ScopeMeter software for Windows (SW90W) with the optically isolated RS-232 (PM9080) or USB (OC4USB) adapter cable on the optical port.
What is the difference between the 123 and the 124?
The 124 has 40 MHz bandwidth, scope cursor measurements, 20 instead of 10 memories, and came with a 10:1 voltage probe.
Documents
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ScopeMeter 190C/190B Series and 120 Series technical data (Fluke)
Datasheet · English · media.fluke.com
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Fluke 123/124 Industrial ScopeMeter users manual (Fluke)
Manual · English · assets.fluke.com
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Fluke 123/124 ScopeMeter service manual (Fluke)
Manual · English · assets.fluke.com
Specifications
| Inputs | 2 scope inputs plus dual-input meter (5,000 counts) |
| Display | 72 x 72 mm, 240 x 240 pixels, monochrome LCD with backlight |
| Memories | 10 screen + setup memories |
| Recorder | TrendPlot dual-input recorder |
| Bandwidth | DC to 20 MHz (-3 dB) |
| Enclosure | IP51 |
| Interface | Optical port; optically isolated RS-232 or USB adapter cable for PC/printer |
| Rise time | < 17.5 ns |
| Time base | 20 ns to 5 s/div (roll mode to 60 s/div) |
| Sample rate | 25 MS/s real time; up to 1.25 GS/s equivalent (repetitive signals) |
| Sensitivity | 5 mV to 500 V/div |
| Safety rating | 600 V CAT III |
| Meter functions | V dc, V ac, V ac+dc, peak, resistance (to 30 MOhm), continuity, diode, capacitance, frequency, duty cycle, pulse width, current and temperature via accessories |
| Size and weight | 232 x 115 x 50 mm, 1.2 kg with battery pack |
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