CLAMP SENSOR Wide-band Models from DC to 100 MHz 3273-50 - 3276 CLAMP ON PROBES http://www.hioki.co.jp/ HIOKI company overview, new products, environmental considerations and other information are available on our website.

1 3273-50 to 3276 CLAMP ON PROBE Because current measurement requires the insertion of a shunt or a CT, the task often becomes difficult due to breaks in the electrical path. The 3273-50 - 3276 CLAMP ON PROBEs only need to be connected directly into the BNC input on waveform observation equipment such as an oscilloscope or a recorder. Then simply clamp onto the conductor to be measured to easily observe current waveforms under a wide bandwidth and high sensitivity conditions. Important Characteristics 3273-50 3273-50 DC to 50 MHz I Square wave response I 1. Frequency response Input: 100 mAp-p...

2 3273-50 to 3276 CLAMP ON PROBE I Waveform Example Features G High S/N ratio: ideal for measuring milliampere waveforms (Model 3273-50) G Capable of waveform monitoring from wide band and minute currents to large currents (Model 3274) G Permits waveform observation of large current of up to 500 Arms (Model 3275) G Wide-band waveform observations, from DC to 100 MHz (Model 3276) G Direct connection to BNC input of oscilloscope G Highly accurate current detection G Newly developed indium-antimony (InSb) thin-film Hall element G Simple overload protector prevents damage due to overheating G Easy...

3 3273-50 to 3276 CLAMP ON PROBE 3273-50 3276 I 3273-50 / 3276 Specifications (accuracy is guaranteed at 23±3˚C [73±5˚F] after the power has been on for 30 minutes) 3273-50 3276 DC to 50 MHz (-3 dB) * See Fig. 1 on page 1. Frequency bandwidth DC to 100 MHz (-3 dB) * See Fig. 1 on page 1. Rise time 7 ns or less 3.5 ns or less Continuous maximum input range 30 Arms * Frequency derating see Fig. 2 on page 1. 30 Arms * Frequency derating see Fig. 2 on page 1. Maximum peak current value Non-continuous 50 Apeak Non-continuous 50 Apeak Output voltage rate 0.1 V/A 0.1 V/A Amplitude accuracy ±1.0% rdg....

4 3273-50 to 3276 CLAMP ON PROBE 3274 3275 I 3274/3275 Specifications (accuracy is guaranteed at 23±3˚C [73±5˚F] after the power has been on for 30 minutes) 3274 3275 DC to 10 MHz (-3 dB) * See Fig. 1 on page 2. Frequency bandwidth DC to 2 MHz (-3 dB) * See Fig. 1 on page 2. Rise time 35 ns or less 175 ns or less Continuous maximum input range 150 Arms * Frequency derating see Fig. 2 on page 2. 500 Arms * Frequency derating see Fig. 2 on page 2. Maximum peak current value Non-continuous 300 Apeak 500 A peak at pulse width of ≤ 30 ms Non-continuous 700 Apeak Output voltage rate 0.01 V/A 0.01 V/A...

5 9274/9276 CLAMP ON AC/DC SENSOR DC to MHz Range A wide range of current waveforms from DC to MHz can be observed at high precision. The 3270 is a DC/AC amplifier that can be connected to the 9274/9276 to enable current waveforms to be recorded and easily observed by connecting a recorder or oscilloscope. 3270 CURRENT MONITOR G Incorporates our custom-developed InSb thin-film Hall element The high degree of electron mobility in InSb makes it ideal for our highly sensitive thin-film Hall element. We have adapted these qualities for measuring a wide range of current, as well as for very low levels....

6 9277 to 9279 UNIVERSAL CLAMP ON CT DC to 100 kHz (9277/9278) When used together with the 9555 SENSOR UNIT, current waveforms can be observed from DC to 100 kHz (Models 9277/9278). Controlled zero drift allows for stable, longduration measurements. 9279 I 9277 to 9279 UNIVERSAL CLAMP ON CT Specifications 9278 9277 9278 9279 Rated current (AC/DC) 20 A 200 A 500 A Output voltage (AC/DC) Accuracy (23 ± 3˚C) [73 ± 5˚F] DC and 45Hz to 66Hz Frequency characteristics (amplitude) (deviation from accuracy) Frequency characteristics (phase) (DC has no provision) Output resistance 2 V f.s. After demagnetization...

7 I Rated current & Frequency characteristics AC/DC AC Wave Monitoring 500A 3275 : DC to 2MHz 9276 : DC to 1MHz 150A 3274 : DC to 10MHz 3273-50 : DC to 50MHz 30A 3276 : DC to 100MHz 9274 : DC to 10MHz 500A Level Monitoring 20A 9279 : DC to 20kHz 9272(20/200A) : 5Hz to 10kHz 200A 9271 : 5Hz to 50kHz 9278 : DC to 100kHz 9270 : 5Hz to 50kHz 20A 9277 : DC to 100kHz DC 1 10 100 1k 10k Frequency (Hz) 100k 1M 10M 100M ! WARNING 1. To avoid short circuits and electric shock accidents when using a clamp-on sensor, use only with power lines carrying voltages within the rating limit of the sensor. 2. To...