Wide-band Models from DC to 100 MHz

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1 CLAMP SENSOR Wide-band Models from to 1 MHz CLAMP ON PROBE 3276

1 CLAMP ON PROBE 3273-5 to 3276 Because current measurement

becomes difficult due to breaks in the electrical path.

directly into the BNC input on waveform observation equipment

Then simply clamp onto the conductor to be measured to easily

Transient response 3273-5 Low-current measurement Input: 1 khz

Frequency response Amplitude [db, db=1v] Input: 1 MHz square

Input: 1 map-p (Oscilloscope bandwidth 4 MHz) 2.

input current [Arms] 1k 1k 1k 1M 1M 1M Input impedance [Ω]

Input impedance 3276 to 1 MHz 3276 Square wave response

wave 2 map-p (Oscilloscope bandwidth 4 MHz) Input: 1 MHz square

(Oscilloscope bandwidth 4 MHz) Input: 1 khz sine wave 1 map-p

2 1 CLAMP ON PROBE to 3276 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 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 Square wave response to 5 MHz Transient response Low-current measurement Input: 1 khz square wave 2 map-p (Oscilloscope bandwidth 4 MHz) 1. Frequency response Amplitude [db, db=1v] Input: 1 MHz square wave 2 map-p (Oscilloscope bandwidth 4 MHz) Input: 1 map-p (Oscilloscope bandwidth 4 MHz) 2. Continuous maximum input rating (Frequency derating) Maximum input current [Arms] 1k 1k 1k 1M 1M 1M Input impedance [Ω] Input: 1 khz sine wave 1 map-p (Oscilloscope bandwidth 2 MHz) 3. Input impedance 3276 to 1 MHz 3276 Square wave response Transient response Low-current measurement Input: 1 khz square wave 2 map-p (Oscilloscope bandwidth 4 MHz) Input: 1 MHz square wave 2 map-p (Oscilloscope bandwidth 4 MHz) Input: 1 map-p (Oscilloscope bandwidth 4 MHz) Input: 1 khz sine wave 1 map-p (Oscilloscope bandwidth 2 MHz) 1. Frequency response Amplitude [db, db=1v] 2. Continuous maximum input rating (Frequency derating) Maximum input current [Arms] k 1k 1k 1M 1M 1M 3. Input impedance Input impedance [Ω]

2 CLAMP ON PROBE 3273-5 to 3276 Features High S/N

(Model 3273-5) Capable of waveform monitoring from

(Model 3274) Permits waveform observation of large

waveform observations, from to 1 MHz (Model 3276)

Highly accurate current detection Newly developed

overload protector prevents damage due to

soft case, the 3274 / 3275 /3276 includes a hard

Inverter 2 ma/div 2 μs/div Press Machine Load

1 A/div 1 s/div 3274 to 1 MHz Input: 1 Hz square

khz square wave 4 map-p (Oscilloscope bandwidth 1

Frequency response Transient response Low-current

MHz) Input: 1 khz sine wave 5 map-p (Oscilloscope

Continuous maximum input rating (Frequency Derating)

response 1 1m 1m 1m [Hz] 3275 3275 to 2 MHz Square

(Oscilloscope bandwidth 2 Frequency response 2. 3.

(Oscilloscope bandwidth 2 MHz) Maximum input current

3 2 CLAMP ON PROBE to 3276 Features High S/N ratio: ideal for measuring milliampere waveforms (Model ) Capable of waveform monitoring from wide band and minute currents to large currents (Model 3274) Permits waveform observation of large current of up to 5 Arms (Model 3275) Wide-band waveform observations, from to 1 MHz (Model 3276) Direct connection to BNC input of oscilloscope Highly accurate current detection Newly developed indium-antimony (InSb) thin-film Hall element Simple overload protector prevents damage due to overheating Easy measurement The includes a soft case, the 3274 / 3275 /3276 includes a hard carrying case 3274 Waveform Example Lighting Inverter 2 ma/div 2 μs/div Press Machine Load Current 5 A/div 1 ms/div Automobile Starter Current 1 A/div 1 s/div 3274 to 1 MHz Input: 1 Hz square wave 2 Ap-p (Oscilloscope bandwidth 1 MHz) Input: 1 khz square wave 4 map-p (Oscilloscope bandwidth 1 MHz) 1. Frequency response Transient response Low-current measurement Input: 1 Ap-p (Oscilloscope bandwidth 1 MHz) Input: 1 khz sine wave 5 map-p (Oscilloscope bandwidth 1 MHz) 2. Continuous maximum input rating (Frequency Derating) Amplitude [db, db=1v] Maximum input current [Arms] Frequency 3. Input impedance Input impedance [Ω] Square wave response 1 1m 1m 1m [Hz] to 2 MHz Square wave response Input: 1 khz sine wave 5 map-p (Oscilloscope bandwidth 2 MHz) 1. Frequency response 2. Continuous maximum input rating (Frequency Derating) 3. Input impedance Input impedance [Ω] Input: 1 Ap-p (Oscilloscope bandwidth 2 MHz) Maximum input current [Arms] Input: 1 khz square wave 4 map-p (Oscilloscope bandwidth 2 MHz) Low-current measurement Amplitude [db, db=1v] Input: 1 Hz square wave 3 Ap-p (Oscilloscope bandwidth 2 MHz) Transient response

3 CLAMP ON PROBE 3273-5 to 3276 3273-5 Frequency bandwidth to 5 MHz (-3 db) * See Fig. 1 on page 1. Rise time Continuous maximum input range 7 ns or less 3 Arms * Frequency derating see Fig.

2 on page 1. Maximum peak current value Non-continuous 5 Apeak Non-continuous 5 Apeak Output voltage rate Amplitude accuracy Noise.1 V/A ±1.% rdg.

Sensitivity temperature characteristics Maximum rated power Operating temperature Storage temperature Effect of external magnetic fields Within ±2% (At 5 Hz/3 Arms input, to 4 C [32 to 14 F]) 5.

4 3 CLAMP ON PROBE to Frequency bandwidth to 5 MHz (-3 db) * See Fig. 1 on page 1. Rise time Continuous maximum input range 7 ns or less 3 Arms * Frequency derating see Fig. 2 on page / 3276 Specifications (accuracy is guaranteed at 23±3 C [73±5 F] after the power has been on for 3 minutes) 3276 to 1 MHz (-3 db) * See Fig. 1 on page ns or less 3 Arms * Frequency derating see Fig. 2 on page 1. Maximum peak current value Non-continuous 5 Apeak Non-continuous 5 Apeak Output voltage rate Amplitude accuracy Noise.1 V/A ±1.% rdg. ±1 mv ( to 3 Arms /, 45 to 66 Hz) ±2.% rdg. (3 Arms to 5 Apeak /, 45 to 66 Hz) Input impedance * See Fig. 3 on page 1. Sensitivity temperature characteristics Maximum rated power Operating temperature Storage temperature Effect of external magnetic fields Within ±2% (At 5 Hz/3 Arms input, to 4 C [32 to 14 F]) 5.6 VA (Input within the maximum input range.) Power supply voltage ±12 V ±.5 V to 4 C [32 to 14 F], 8% rh or less Max. 2 ma (equivalent) ( and 6 Hz, Magnetic field of 4 A/m) Max. rated voltage to earth 3 V, CAT-I (insulated conductor) Measurement conductor Diameter max. 5 mm [.2"] 2.5 marms or less (measured with 2 MHz bandwidth equipment) -1 to 5 C [14 to 122 F], 8% rh or less Sensor: approx. 175(W) 18(H) 4(D) mm; 23 g [6.89"(W).71"(H) 1.57"(D), 8.1 oz.] Termination unit: approx. 27(W) 55(H) 18(D) mm [1.6"(W) 2.17"(H).71"(D)].1 V/A ±1.% rdg. ±1 mv ( to 3 Arms /, 45 to 66 Hz) ±2.% rdg. (3 Arms to 5 Apeak /, 45 to 66 Hz) 2.5 marms or less (measured with 2 MHz bandwidth equipment) * See Fig. 3 on page 1. Within ±2% (from to 4 C [32 to 14 F] ) 5.3 VA (Input within the maximum input range.) ±12 V ±.5 V to 4 C [32 to 14 F], 8% rh or less -1 to 5 C [14 to 122 F], 8% rh or less Max. 5 ma (equivalent) ( and 6 Hz, Magnetic field of 4 A/m) 3 V, CAT-I (insulated conductor) Diameter max. 5 mm [.2"] Sensor: approx. 175(W) 18(H) 4(D) mm; 24 g [6.89"(W).71"(H) 1.57"(D), 8.5 oz.] Termination unit: approx. 27(W) 55(H) 18(D) mm [1.6"(W) 2.17"(H).71"(D)] Cable length Supplied accessories Sensor cable: approx. 1.5 m [59.6"] (BNC connector) Power cable: approx. 1 m [39.37"] Soft case 1 Sensor cable: approx. 1.5 m [59.6"] (BNC connector) Power cable: approx. 1 m [39.38"] Hard case 1 Applicable standards Safety standards EMC EN 611 Measurement category I (anticipated transient overvoltage 15 V), Pollution Degree 2 EN EN EN EN 611 Measurement category I (anticipated transient overvoltage 15 V), Pollution Degree 2 EN EN EN Sensor head Composed of molded parts, ferrite and Hall elements. The thin-film of the Hall element especially improves detection sensitivity to realize wider bands and high sensitivity monitoring /3276 : approx. 175(W) 18(H) 4(D) mm, [6.89"(W).71"(H) 1.57"(D)] Maximum measurement conductor: dia. 5 mm [.2"] Sensor cable (approx. 1.5 m [59.6"]) Power cable (approx. 1 m [39.37"]) Power supply plug Connects to the FET probe power supply outlet of an oscilloscope or to the optional 3269 / 3272 power supply unit. (Provided that connector type, pin assignment, voltage, and capacity rating match, the to 3276 can be powered also from another source. For operation safety, be sure to refer to the specifications to ensure an exact match.) Power supply plug pin assignment (Plug as seen from the front) : Not connected 2 : GND 3 : V- (-12V) 4 : V+ (+12V) * Connector type: LEMO inc./ FFA.S.34.CLAC42Z Sensor cable (approx. 2 m [78.74"]) 3274/3275 : approx. 176(W) 69(H) 27(D) mm, [6.93"(W) 2.72"(H) 1.6"(D)] BNC output connector Can be connected directly to the BNC input of an oscilloscope or level recorder or similar device. Output voltage rate:.1 V/A ( / 3276).1 V/A (3274 / 3275) (Use only equipment with an input impedance of 1 MΩ or more.) Maximum measurement conductor: dia. 2 mm [.79"]

CLAMP ON PROBE 3273-5 to 3276 4 3274 3275 3274 / 3275 Specifications (accuracy is guaranteed at 23±3 C [73±5 F] after the power has been on for 3 minutes) 3274 3275 Frequency bandwidth to 1 MHz (-3

2 on page 2. Non-continuous 3 Apeak 5 A peak at pulse width of 3 ms 5 Arms * Frequency derating see Fig. 2 on page 2. Non-continuous 7 Apeak Output voltage rate.1 V/A.

% rdg. (5 Arms to 7 Apeak /, 45 to 66 Hz) 25 marms or less (measured with 2 MHz bandwidth equipment) Input impedance * See Fig. 3 on page 2.

5 VA (Input within the maximum input range.) 7.2 VA (Input within the maximum input range.) Power supply voltage ±12 V ±1 V ±12 V ±.

5 CLAMP ON PROBE to / 3275 Specifications (accuracy is guaranteed at 23±3 C [73±5 F] after the power has been on for 3 minutes) Frequency bandwidth to 1 MHz (-3 db) * See Fig. 1 on page 2. 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 Maximum peak current value 15 Arms * Frequency derating see Fig. 2 on page 2. Non-continuous 3 Apeak 5 A peak at pulse width of 3 ms 5 Arms * Frequency derating see Fig. 2 on page 2. Non-continuous 7 Apeak Output voltage rate.1 V/A.1 V/A Amplitude accuracy Noise ±1.% rdg. ±1 mv ( to 15 Arms /, 45 to 66 Hz) ±2.% rdg. (15 Arms to 3 Apeak /, 45 to 66 Hz) 25 marms or less (measured with 2 MHz bandwidth equipment) ±1.% rdg. ±5 mv ( to 5 Arms /, 45 to 66 Hz) ±2.% rdg. (5 Arms to 7 Apeak /, 45 to 66 Hz) 25 marms or less (measured with 2 MHz bandwidth equipment) Input impedance * See Fig. 3 on page 2. * See Fig. 3 on page 2. Sensitivity temperature characteristics Within ±2% (At 55 Hz/15 A input, to 4 C [32 to 14 F]) Within ±2% (At 5 Hz/5 A input, to 4 C [32 to 14 F]) Maximum rated power 5.5 VA (Input within the maximum input range.) 7.2 VA (Input within the maximum input range.) Power supply voltage ±12 V ±1 V ±12 V ±.5 V Operating temperature Storage temperature Effect of external magnetic fields Max. rated voltage to earth to 4 C [32 to 14 F], 8% rh or less -1 to 5 C [14 to 122 F], 8% rh or less Max. 15 ma (equivalent) ( and 6 Hz, Magnetic field of 4 A/m) 6 V CAT-II, 3 V CAT-III (insulated conductor) to 4 C [32 to 14 F], 8% rh or less -1 to 5 C [14 to 122 F], 8% rh or less Max. 8 ma (equivalent) ( and 6 Hz, Magnetic field of 4 A/m) 6 V CAT-II, 3 V CAT-III (insulated conductor) Measurement conductor Diameter max. 2 mm [.79"] Diameter max. 2 mm [.79"] Cable length Sensor: approx. 176(W) 69(H) 27(D) mm; 5 g [6.93"(W) 2.72"(H) 1.6"(D), 17.6 oz.] Termination unit: approx. 27(W) 55(H) 18(D) mm [1.6"(W) 2.17"(H).71"(D)] Sensor cable: approx. 2 m [78.74"] (BNC connector) Power cable: approx. 1 m [39.37"] Sensor: approx. 176(W) 69(H) 27(D) mm; 52 g [6.93"(W) 2.72"(H) 1.6"(D), 18.3 oz.] Termination unit: approx. 27(W) 55(H) 18(D) mm [1.6"(W) 2.17"(H).71"(D)] Sensor cable: approx. 2 m [78.74"] (BNC connector) Power cable: approx. 1 m [39.37"] Supplied accessories Hard case 1 Hard case 1 Applicable standards Safety standards EMC EN 611 Overvoltage category II, III (anticipated transient overvoltage 4 V), Pollution Degree 2 EN EN EN EN 611 Overvoltage category II, III (anticipated transient overvoltage 4 V), Pollution Degree 2 EN EN EN POWER SUPPLY 3269 / 3272 Dedicated power supplies for the Clamp Sensor series-ideal when power is not available from the oscilloscope, or when using the probes for common measurement applications *The total current output of the 3272 is 6mA (for two channels). Depending on the current of the measurement object, simultaneous use of both channels may not be available The 3269 is capable of powering 4 channels of high current sensors simultaneously. Current consumption of the to 3276 (sum of real values) / 3272 Specifications Compatible sensors /3274/3275/3276 CLAMP ON PROBE Number of power 2 * 4 Output voltage ±12 V ±.5 V Rated output current Power requirements (5/6 Hz) 6 ma (sum total of all channels and all output voltage) 1V AC±1% (Specify 12, 22 or 24V power supply when ordering.) ±2.5 A AC1 to 24 V±1% Maximum rated power 2 VA 17 VA Dimensions Approx. 73W 11H 186D mm Approx. 8W 119H 2D mm Mass Approx. 1.1 kg Approx. 1.1 kg Accessories (sum total of all channels) Power cord, Spare fuse (3272 only) [ ] [ 3274 ] [ 3275 ] [ 3276 ] current consumption (ma) AC(f=5Hz) current consumption (ma) AC (f=5hz) current consumption (ma) AC (f=5hz) current consumption (ma) AC (f=5hz) current to be measured (A) current to be measured (A) current to be measured (A) current to be measured (A)

electrical vehicles, hybrid vehicles, and fuel cell batteries, as well as many other applications. SENSOR UNIT 9555-1 Supply power to the 979 when the sensor is used by itself.

6 5 AC/ CURRENT SENSOR 979 to 1 khz Range The AC/ Current Sensor 979 is a high current, wide bandwidth and ultra-precise (±.5% rdg. ±.1 % f.s.) sensor. Effects from conductor position, external magnetic fields and magnetic bandwidth are extremely small, making the sensor ideal for answering measurement needs in the research and development of electrical vehicles, hybrid vehicles, and fuel cell batteries, as well as many other applications. SENSOR UNIT Supply power to the 979 when the sensor is used by itself. Please refer to page 6 for specifications. 979 Specifications (Accuracy guaranteed for 6 months, when used within the derating range in an environment 23 ±5, 8%rh or less, and in combination with the Sensor Unit, after warming up for 1 minutes.) Rated current Output voltage Output resistance Maximum input current Amplitude accuracy (after warming-up, within a derating, < f*< 5 Hz is the reference value, when using with Model 9555, ) *: Frequency Phase accuracy (after warming-up, within a derating, < f*< 2 Hz is the reference value, when using with Model 9555, ) *: Frequency Frequency bandwidth Temperature coefficienct Power consumption Power supply voltage Operating temperature Storage temperature and humidity Effect of external electromagnetic fields Effect of conductor position Effect of magnetic Max. rated voltage to earth Measurable conductor diameter Cable length Applicable standards Supplied accessories 5 A (AC+) 2 V/5 A (AC+) 5 Ω 7 Arms (1 A peak, 5/6 Hz, continuity) < f< 45 Hz, 45 Hz f 66 Hz 66 Hz< f 5 Hz 5 Hz< f 5 khz 5 khz< f 1 khz 1 khz< f 2 khz 2 khz< f 1 khz < f< 45 Hz 45 Hz f 66 Hz 66 Hz< f 5 khz 5 khz< f 1 khz 1 khz< f 2 khz 2 khz< f 1 khz :±.2% rdg. ±.2% f.s. :±.5% rdg. ±.1% f.s. :±.2% rdg. ±.2% f.s. :±.5% rdg. ±.5% f.s. :±2.% rdg. ±.1% f.s. :±5.% rdg. ±.1% f.s. :±3% rdg. ±.1% f.s. :Not specified :±.3 deg :±.2 deg :±.5 deg :±2. deg :±5. deg :±3 deg to 1 khz Amplitude sensitivity :±.1% rdg./ C or less Offset voltage :±.5% f.s./ C or less 5 VA or less (5 A/ 55 Hz measurement, with ±12 power supply) ±11 to ±15 V (Tracking) to 5 C [32 to 122 F], 8% RH or less (non-condensation) -1 to 6 C [14 to 14 F], 8% RH or less (non-condensation) 5 ma or less (In a 6 Hz or magnetic field of 4 A/m) ±.5% or less (at 1 A input, using with the wire 1 mm diameter) 2 ma or less (after 5 A input) 1 VAC/ (5/ 6 Hz)(Measurement category III) f36 mm (1.42") or less Approx. 3 m [118.11"] Approx. 16(W) 112(H) 5(D) mm, Approx. 85 g [6.3"(W) 4.41"(H) 1.97"(D), 3. oz.] Safety : EN611, Pollution Degree 2 EMC : EN Mark band 6 (3 sets) Offset - Temperature Characteristics Sensitivity - Temperature Characteristics Effect of conductor position (the wire 1 mm diameter) Derating

UNIVERSAL CLAMP ON CT 9277 to 9279 6 to 1 khz (9277/9278) When used together with the 9555-1 SENSOR UNIT, current waveforms can be observed from to 1 khz (Models 9277/9278).

warm-up Amplitude: ±.5% rdg. ±.5% f.s. Phase:within ±.2 ( has no provision) Frequency characteristics to 1 khz : within ±1.% to 1 khz: within ±1.% (amplitude) 1 k to 5 khz : within ±2.

7 UNIVERSAL CLAMP ON CT 9277 to to 1 khz (9277/9278) When used together with the SENSOR UNIT, current waveforms can be observed from to 1 khz (Models 9277/9278). Controlled zero drift allows for stable, long-duration measurements to 9279 Specifications Rated current (AC/) 2 A 2 A 5 A Output voltage (AC/) 2 V f.s. Accuracy (23 ± 3 C) [73 ± 5 F] and 45Hz to 66Hz After demagnetization and at least 3 min. warm-up Amplitude: ±.5% rdg. ±.5% f.s. Phase:within ±.2 ( has no provision) Frequency characteristics to 1 khz : within ±1.% to 1 khz: within ±1.% (amplitude) 1 k to 5 khz : within ±2.5% 1 k to 1 khz: within ±2.5% (deviation from accuracy) 5 k to 1 khz : within ±5% 1 k to 2 khz: within ±5% Frequency characteristics to 1 khz : within ±.5 to 1 khz: within ±.5 (phase) 1 k to 5 khz : within ±2.5 1 k to 1 khz: within ±2.5 ( has no provision) 5 k to 1 khz : within ±5. 1 k to 2 khz: within ±5. Output resistance 5Ω Input resistance().5 mω or less.2 mω or less.1 mω or less The maximum permissible input range( to 3kHz)* 1 Temperature characteristics ( to 4 C) 5 Arms (75 Apeak) 35 Arms (5 Apeak) Sensitivity: within ±.5% rdg./ C Offset: within ±.5% f.s./ C 65 Arms (92 Apeak) Operating temperature to 4 C [32 to 14 F], 8% RH or less Effect of external magnetic fields* 2 Max..2 A Max. 1 A Max. 2 A Influence of conductor position within ±.5% (, 55 Hz) within ±1.5% (, 55 Hz) Withstand voltage 22 V AC for 1 minute (electrical circuits to case, electrical circuits to core) Insulation resistance At least 1 MΩ at 5V (electrical circuits to case, electrical circuits to core) Max. rated voltage to earth 6 Vrms (85 Vpeak)insulated wire Measurement conductor Diameter max.2 mm [.79"] Diameter max.4 mm [1.57"] Cable length Approx. 1.5m [59.6"] Power supply voltage ±12 V to ±15 V Power consumption 3.6 W max. 7.2 W max. Approx. 176(W) 63(H) 34(D) mm; 43 g [6.92"(W) 2.48"(H) 1.34"(D), 15.2 oz.] Supplied accessories Carrying case 9375 Approx. 22(W) 13(H) 43.5(D) mm; 86 g [8.66"(W) 4.6"(H) 1.71"(D), 3.3 oz.] Specifications 9277 The probe cannot be used alone: the is required. SENSOR UNIT Output voltage : ±12 V ±.5 V, ±.5 A Max. Rated voltage : ±1 V to +3 V (The supplited AC ADAPTER supplies +12 V.) Operating temperature Storage temperature Max. rated power : 2 VA : to 4 C [32 to 14 F], 8% RH max. Output terminal: BNC terminal Accuracy and other characteristics depend on the connected sensor. Dimensions and mass Accessories : -1 to 5 C [14 to 122 F], 8% RH max. : Approx. 42(W) 82(H) 132(D) mm, 6g [1.65"(W) 3.24"(H) 5.2"(D), 21.2 oz.] : AC ADAPTER (with a power cord) Rated supply voltage : AC1 to 24V Rated supply frequency : 5/ 6 Hz Rated output voltage : 12 V *1 Maximum non-destructive input above 3 khz is specified separately. *2 and 55 Hz, Magnetic field of 4A/m. CLAMP ON SENSOR Hz to 1kHz SENSOR UNIT The probe cannot be used alone: the is required Specifications Rated current Maximum input current Amplitude accuracy Phase accuracy Frequency bandwidth (Deviation from the amplitude/phase accuracy) Output voltage Max. rated voltage to earth Measurable conductor diameter Cable length Power supply voltage Supplied accessories 2/ 2 A AC 5 Arms/ 3 Arms (5/ 6 Hz, within a derating) ±.3 %rdg. ±.1 %f.s. (45 to 66 Hz) ±.2deg. (45 to 66Hz) 1 Hz (±2.% rdg. ±.1% f.s.) to 1 khz (±3% rdg. ±.1% f.s.) 2 V f.s. (rated current) 6 Vrms AC (5/ 6 Hz) f46 mm (1.81") or less Approx. 3 m [118.11"] ±11V to ±15V (Tracking) Approx. 78(W) 188(H) 35(D) mm; 43 g [3.7"(W) 7.4"(H) 1.38"(D), 15.2 oz.] CARRYING CASE 9355 Mark bands 6

7 Rated current & Frequency characteristics AC/ AC Wave Monitoring Level Monitoring 5A 15A 3A 5A 2A 2A 3275 : to 2 MHz 979 : to 1 khz 3274 : to 1 MHz 3273-5 : to 5 MHz 3276 : to 1 MHz 9279 : to 2 khz

8 7 Rated current & Frequency characteristics AC/ AC Wave Monitoring Level Monitoring 5A 15A 3A 5A 2A 2A 3275 : to 2 MHz 979 : to 1 khz 3274 : to 1 MHz : to 5 MHz 3276 : to 1 MHz 9279 : to 2 khz (2/2A) : 1Hz to 1kHz 9278 : to 1 khz 9277 : to 1 khz k 1k 1k 1M 1M 1M Frequency (Hz)! 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 avoid short circuits and electric shock accidents when the clamp-on sensor is open, do not use on bare conductors. CLAMP ON PROBE CLAMP ON PROBE 3274 CLAMP ON PROBE 3275 CLAMP ON PROBE 3276 CLAMP ON SENSOR UNIVERSAL CLAMP ON CT 9277 UNIVERSAL CLAMP ON CT 9278 UNIVERSAL CLAMP ON CT 9279 AC/ CURRENT SENSOR 979 Option POWER SUPPLY 3269 (for to 3276, 4ch) POWER SUPPLY 3272 (for to 3276, 2ch) SENSOR UNIT (for / 9277 to 9279 / 979) HEAD OFFICE : 81 Koizumi, Ueda, Nagano, , Japan TEL / FAX os-com@hioki.co.jp HIOKI USA CORPORATION : 6 Corporate Drive, Cranbury, NJ 8512 USA TEL / FAX hioki@hiokiusa.com HIOKI (Shanghai) Sales & Trading Co., Ltd. : Shanghai Times Square Office, 93 Huai Hai Zhong Road, Shanghai, P.R.China POSTCODE: 221 TEL /92 FAX info-sh@hioki.com.cn Beijing Office : A-262 Freetown, 58 Dong San Huan Nan Road Beijing, P.R.China POSTCODE: 122 TEL /481 FAX info-bj@hioki.com.cn Guangzhou Office : Room A-326, Victory PlazaServices Center, No.13, Tiyuxi Road, Guangzhou, P.R.China POSTCODE:5162 TEL /2676 FAX info-gz@hioki.com.cn DISTRIBUTED BY All information correct as of Dec. 12, 28. All specifications are subject to change without notice. CLAMPE4-8ZM Printed in Japan

Wide-band Models from DC to 100 MHz

Wide-band Models from DC to 100 MHz CLAMP SENSOR Wide-band Models from DC to 1 MHz 3273-5 - 3276 CLAMP ON PROBES http://www.hioki.co.jp/ HIOKI company overview, new products, environmental considerations and other information are available