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Hioki CM3289 – AC Clamp On Hi Tester True RMS
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Clamp On Hi Tester (TRMS)
- New redesigned sensor for even easier clamping (CM3289)
- Expanded -25 °C to 65 °C operating temperature range
- Model CM3289: Measure even harmonic waveform components using the True RMS method
- Connect the CT6280 flexible sensor to measure up to 4199 A in thick or paired wires
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Description
Hioki CM3289 – AC Clamp On Hi Tester True RMS
- New redesigned sensor for even easier clamping (CM3289)
- Expanded -25 °C to 65 °C operating temperature range
- Measure even harmonic waveform components using the True RMS method
- Connect the CT6280 flexible sensor to measure up to 4199 A in thick or paired wires
Hioki clamp meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM3289 is a True RMS rectifying 1000A AC clamp meter that features a broad operating temperature range of -25° C to 65° C, thin and compact clamp core, and optional flexible current sensor that you can attach to let you get into the tightest spots.
- CAT IV 300 V (Current)
- CAT III 600 V (Current)
- CAT III 300 V (Voltage)
- CAT II 600 V (Voltage)
Lower-Profile Sensor Provides Improved Ease Of Use In Confined Spaces
Hioki is pleased to announce the launch of the AC Clamp Meter CM3289 with true RMS measurement.
The CM3289 is an improved version of the AC Clamp Meter 3280-20F that incorporates a lower-profile sensor for improved ease of use in confined spaces.
Quickly clamp wires in even more confined spaces!
A new sensor profile yields outstanding ease of use.
True RMS model capable of accurately measuring even distorted waveforms
True RMS measurement yields accurate display values even when measuring a distorted waveform, for example from an inverter-equipped device or switching power supply.
The waveform including harmonic components is calculated according to an RMS calculation formula and displayed.
A pocket clamp meter that can use flexible sensors
When connected to an optional flexible current sensor*, the CM3289 can be used to measure the current flowing in pairs of wires or in tangled or complexly routed wires around which it was not possible to apply a clamp-on sensor in the past.
*AC FLEXIBLE CURRENT SENSOR CT6280 (4200 A AC, Φ130 mm)
Essential for electrical work: A thin card tester that fits in the pocket with all the capabilities of a clamp meter
The CM3289 delivers all the functionality of a clamp meter and card tester in the form factor of the latter. In addition to current measurement, this single instrument delivers voltage measurement, continuity check, and resistance measurement functionality.
Rugged, portable design that’s drop-resistant
Despite its thin, compact design, the CM3289 has an operating temperature range of -25°C to 65°C and can withstand being dropped from a height of 1 m onto concrete. It’s engineered for use in tough environments.
CM3289 Features
Lower-profile sensor for improved ease of use in confined spaces
Regular maintenance and management are essential in order to keep electrical equipment in buildings and manufacturing plants working properly, and current and voltage measurement comprises an important part of that process. Hioki has long supplied customers with measuring instruments and clamp meters that are used in the field to perform such maintenance and management.
In recent years, the decreasing size of distribution panels and other changes have led to increased wire density, placing in cables in such close proximity that older sensor designs are too large to fit between cables so that they can be applied to the cable being measured. The newly launched CM3289 features a lower-profile sensor with pointed jaws so that it can be more easily inserted between wires in confined spaces. Whereas the 3280-20F’s sensor measured 82 mm across in the open position, the CM3289’s sensor measures just 71 mm, a reduction of 11 mm.
Comparison of the New and Legacy Model
| Sensor width | Thickness at tip of sensor jaws | Width with sensor open | |
| Legacy 3280-20F | 58 mm | 9.3 mm | 82 mm |
| New CM3289 | 50.4 mm | 8.3 mm | 71 mm |
Features Inherited From The Legacy Product (3280-20F)
- Broad operating temperature range to allow use in a variety of temperature environments – The CM3289 has an operating temperature range of -25°C to 65°C. Thanks to the breadth of this range, it can be used in a variety of climates worldwide, from cold-weather areas characterized by subzero temperatures to hot regions where air temperatures exceed 40°C.
- Flexible current sensor support to facilitate measurement of tangled wires – The AC Flexible Current Sensor CT6280 is available as an option for the CM3289. The CT6280’s flexible sensor can be applied in locations where the CM3289’s rigid resin sensor (jaws) cannot. In addition, the CT6280’s cable has a cross-sectional diameter of 5 mm, making it thinner than competitors’ products and allowing easier application in locations where wires are tangled together.
Furthermore, the CT6280 supports large currents and can measure currents of up to 4199 A when used with the CM3289. (By itself, the CM3289 can measure currents of up to 1000 A.)
- True RMS measurement to allow accurate measurement of currents with distorted waveforms – There are two methods for measuring AC currents: the mean method and the true RMS method. Either method can accurately measure current with a distortion-free sine wave, but only the true RMS method can accurately measure waveforms that have been distorted by equipment such as an inverter or switching power supply. To accurately measure such currents, it is necessary to use a clamp meter that supports true RMS measurement. Since the CM3289 supports such measurement, it can accurately measure even currents with distorted waveforms.
Clamp Meters/Clamp Meters Template | |
|---|---|
| True RMS | Yes |
| Maximum Current AC | 1000 A |
| Maximum Voltage AC | 600 V |
| Maximum Voltage DC | 600 V |
| Maximum Conductor Size | 1.30 IN |
| Resistance | Yes |
Product General Attributes | |
| HTS/Schedule B Number | 9030330040 |
| ECCN Number | 3A992 |
| Country of Origin | Japan |
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Hioki CM3289 – AC Clamp ... $180.40
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Let us assist you in finding the perfect solution!
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