125B-INDUSTRIAL-BAG
Fluke 125B Industrial ScopeMeter, 40 MHz 2-channel handheld oscilloscope with power and bus health tests (125B-INDUSTRIAL-BAG)
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Available units (2)
About the 125B-INDUSTRIAL-BAG
The Fluke 125B is the top model of Fluke's 120B Series Industrial ScopeMeter line: a battery-powered handheld instrument that combines a two-input 40 MHz digital oscilloscope, two true-rms multimeters and a recorder. It is aimed at electrical and electro-mechanical troubleshooting in industrial plants.
Fluke's Connect-and-View triggering sets up a stable display without manual adjustment, and IntellaSet picks the numeric readings that suit the measured signal. Compared with the 123B and 124B, the 125B adds power measurements (W, VA, var, PF, DPF), harmonics up to the 51st, and a Bus Health test that grades the electrical signal quality of field buses such as CAN, Profibus, Modbus, AS-i and Foundation Fieldbus as good, weak or bad.
The instrument is rated CAT IV 600 V / CAT III 750 V, has a 640 x 480 colour screen, a Li-ion battery for about seven hours of use and a micro SD slot for long recordings. Data goes to a PC through the optically isolated OC4USB cable and FlukeView ScopeMeter software, or wirelessly with the optional WiFi adapter and the Fluke Connect app.
Fluke's standard 125B kit includes the i400s AC current clamp and a 10:1 voltage probe; the 125B/S kit adds a soft carrying case, FlukeView software, a magnetic hanger and a screen protector.
Frequently asked questions
What is the difference between the 123B, 124B and 125B?
The 123B has 20 MHz bandwidth, the 124B and 125B have 40 MHz. The 124B adds scope cursors, and the 125B adds power and harmonics measurements, the Bus Health test, and an i400s current clamp in the standard kit.
What does the 125B/S kit add?
Fluke's /S versions add a soft carrying case, FlukeView ScopeMeter software for Windows, a magnetic hanger and a screen protector to the standard accessories.
How do I transfer data to a PC?
Use the optically isolated OC4USB USB cable with FlukeView ScopeMeter software, or the optional WiFi USB adapter (not sold in all countries) with Fluke Connect.
Which field buses can the Bus Health test check?
Fluke lists AS-i, CAN, Interbus S, Modbus (RS-232/RS-485), Foundation Fieldbus H1, Profibus DP and PA, RS-232 and RS-485.
Documents
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120B Series Industrial ScopeMeter technical data (Fluke)
Datasheet · English · media.fluke.com
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123B/124B/125B Industrial ScopeMeter users manual (Fluke)
Manual · English · media.fluke.com
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123B/124B/125B Industrial ScopeMeter calibration manual (Fluke)
Manual · English · media.fluke.com
Specifications
| Inputs | 2 scope inputs plus 2 true-rms meter readings (5,000 counts) |
| Battery | Li-ion BP290, about 7 hours; 4 h charge (instrument off) |
| Display | 5.7 in colour TFT, 640 x 480 pixels |
| Recorder | Meter and scope recorder; micro SD slot (up to 32 GB) |
| Bandwidth | DC to 40 MHz (-3 dB) |
| Enclosure | IP51 |
| Rise time | < 8.75 ns |
| Interfaces | Optically isolated USB (OC4USB), USB port for optional WiFi adapter |
| Sample rate | 40 MS/s real time; up to 4 GS/s equivalent (repetitive signals) |
| Sensitivity | 5 mV to 200 V/div |
| Safety rating | CAT IV 600 V / CAT III 750 V (IEC 61010) |
| Bus health test | AS-i, CAN, Interbus S, Modbus, Foundation Fieldbus H1, Profibus DP/PA, RS-232, RS-485 |
| Meter functions | V dc, V ac, V ac+dc, resistance, continuity, diode, capacitance, frequency, duty cycle, current via clamp |
| Size and weight | 259 x 132 x 55 mm, 1.4 kg with battery |
| Power and harmonics | W, VA, var, PF, DPF, Hz; harmonics to the 51st |
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