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CLAMP SENSOR
Wide-band Models from DC to 100 MHz
3276 CLAMP ON PROBE
http://www.hioki.co.jp/
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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
s Square wave response
DC to 50 MHz
s Transient response
3273-50
s Low-current measurement
Input: 1 kHz square wave 200 mAp-p (Oscilloscope bandwidth 400 MHz)
Input: 1 MHz square wave 200 mAp-p (Oscilloscope bandwidth 400 MHz)
Input: 100 mAp-p (Oscilloscope bandwidth 400 MHz)
Input: 1 kHz sine wave 10 mAp-p (Oscilloscope bandwidth 20 MHz)
s 1. Frequency response
(Characteristics Example)
Amplitude [dB, 0dB=1V]
s 2. Continuous maximum input rating (Frequency derating)
Maximum input current [Arms]
30 25
s 3. Input impedance
(Characteristics Example)
Input impedance []
20 15
10 5
0 10
100
1k
10k
100k
1M
10M
100M
Frequency [Hz]
Frequency [Hz]
Frequency [Hz]
3276
s Square wave response
DC to 100 MHz
s Transient response
3276
s Low-current measurement
Input: 1 kHz square wave 200 mAp-p (Oscilloscope bandwidth 400 MHz)
Input: 1 MHz square wave 200 mAp-p (Oscilloscope bandwidth 400 MHz)
Input: 100 mAp-p (Oscilloscope bandwidth 400 MHz)
Input: 1 kHz sine wave 10 mAp-p (Oscilloscope bandwidth 20 MHz)
s 1. Frequency response
(Characteristics Example)
Amplitude [dB, 0dB=1V]
s 2. Continuous maximum input rating (Frequency derating)
Maximum input current [Arms]
30 25 20 15 10 5 0 10
s 3. Input impedance
(Characteristics Example)
Input impedance []
100
1k
10k
100k
1M
10M
100M
Frequency
[Hz]
Frequency [Hz]
Frequency [Hz]
2
3273-50 to 3276 CLAMP ON PROBE
Features
q High S/N ratio: ideal for measuring milliampere waveforms (Model 3273-50) q Capable of waveform monitoring from wide band and minute currents to large currents (Model 3274) q Permits waveform observation of large current of up to 500 Arms (Model 3275) q Wide-band waveform observations, from DC to 100 MHz (Model 3276) q Direct connection to BNC input of oscilloscope q Highly accurate current detection q Newly developed indium-antimony (InSb) thin-film Hall element q Simple overload protector prevents damage due to overheating q Easy measurement q The 3273-50 includes a soft case, the 3274 / 3275 /3276 includes a hard carrying case
s Waveform Example
Lighting Inverter 200 mA/div 20 s/div
Press Machine Load Current 50 A/div 10 ms/div
Automobile Starter Current 100 A/div 1 s/div
3274
s Square wave response
DC to 10 MHz
s Transient response
3274
s Low-current measurement
Input: 100 Hz square wave 20 Ap-p (Oscilloscope bandwidth 100 MHz)
Input: 100 kHz square wave 400 mAp-p (Oscilloscope bandwidth 100 MHz)
Input: 1 Ap-p (Oscilloscope bandwidth 100 MHz)
Input: 1 kHz sine wave 50 mAp-p (Oscilloscope bandwidth 100 MHz)
s 1. Frequency response
(Characteristics Example)
Amplitude [dB, 0dB=1V]
s 2. Continuous maximum input rating (Frequency Derating)
Maximum input current [Arms]
s 3. Input impedance
(Characteristics Example)
Input impedance []
1
100m
10m
1m
Frequency
[Hz]
Frequency [Hz]
Frequency [Hz]
3275
s Square wave response
DC to 2 MHz
s Transient response
3275
s Low-current measurement
Input: 100 Hz square wave 300 Ap-p (Oscilloscope bandwidth 20 MHz)
Input: 10 kHz square wave 400 mAp-p (Oscilloscope bandwidth 20 MHz)
Input: 1 Ap-p (Oscilloscope bandwidth 20 MHz)
Input: 1 kHz sine wave 50 mAp-p (Oscilloscope bandwidth 20 MHz)
s 1. Frequency response
(Characteristics Example)
Amplitude [dB, 0dB=1V]
s 2. Continuous maximum input rating (Frequency Derating)
Maximum input current [Arms]
s 3. Input impedance
(Characteristics Example)
Input impedance []
Frequency [Hz]
Frequency [Hz]
Frequency [Hz]
3
3273-50 to 3276 CLAMP ON PROBE
3273-50 3276
s 3273-50 / 3276 Specifications (accuracy is guaranteed at 233C [735F] after the power has been on for 30 minutes)
3273-50
Frequency bandwidth Rise time Continuous maximum input range Maximum peak current value Output voltage rate Amplitude accuracy Noise Input impedance Sensitivity temperature characteristics Maximum rated power Power supply voltage Operating temperature and humidity Storage temperature and humidity Effect of external magnetic fields Max. rated voltage to earth Measurement conductor DC to 50 MHz (-3 dB) * See Fig. 1 on page 1. 7 ns or less 30 Arms * Frequency derating see Fig. 2 on page 1. Non-continuous 50 Apeak 0.1 V/A 1.0% rdg. 1 mV (0 to 30 Arms / DC, 45 to 66 Hz) 2.0% rdg. (30 Arms to 50 Apeak / DC, 45 to 66 Hz) 2.5 mArms or less (measured with 20 MHz bandwidth equipment) * See Fig. 3 on page 1. Within 2% (At 50 Hz/30 Arms input, 0 to 40C [32 to 104F]) 5.6 VA (Input within the maximum input range.) 12 V 0.5 V 0 to 40C [32 to 104F] , 80% rh or less (no condensation) -10 to 50C [14 to 122F] , 80% rh or less (no condensation) Max. 20 mA (equivalent) (DC and 60 Hz, Magnetic field of 400 A/m) 300 V, CAT-I (insulated conductor) Diameter max. 5 mm [0.20"] Sensor: approx. 175(W)18(H)40(D) mm; 230 g [6.89"(W)0.71"(H)1.57"(D), 8.1 oz.] Termination unit: approx. 27(W)55(H)18(D) mm [1.06"(W)2.17"(H)0.71"(D)] Sensor cable: approx. 1.5 m [59.06"] (BNC connector) Power cable: approx. 1 m [39.37"] Soft case 1 EN 61010-2-031: 1994, EN 61010-2-032: 1995 Measurement category I (anticipated transient overvoltage 1500 V), Pollution Degree 2 EN 61326:1997+A1:1998+A2:2001 EN 61000-3-2: 2000 EN 61000-3-3: 1995+A1:2001
3276
DC to 100 MHz (-3 dB) * See Fig. 1 on page 1. 3.5 ns or less 30 Arms * Frequency derating see Fig. 2 on page 1. Non-continuous 50 Apeak 0.1 V/A 1.0% rdg. 1 mV (0 to 30 Arms / DC, 45 to 66 Hz) 2.0% rdg. (30 Arms to 50 Apeak / DC, 45 to 66 Hz) 2.5 mArms or less (measured with 20 MHz bandwidth equipment) * See Fig. 3 on page 1. Within 2% (from 0 to 40 C [32 to 104 F] ) 5.3 VA (Input within the maximum input range.) 12 V 0.5 V 0 to 40C [32 to 104F] , 80% rh or less (no condensation) -10 to 50C [14 to 122F] , 80% rh or less (no condensation) Max. 5 mA (equivalent) (DC and 60 Hz, Magnetic field of 400 A/m) 300 V, CAT-I (insulated conductor) Diameter max. 5 mm [0.20"] Sensor: approx. 175(W)18(H)40(D) mm; 240 g [6.89"(W)0.71"(H)1.57"(D), 8.5 oz.] Termination unit: approx. 27(W)55(H)18(D) mm [1.06"(W)2.17"(H)0.71"(D)] Sensor cable: approx. 1.5 m [59.06"] (BNC connector) Power cable: approx. 1 m [39.38"] Hard case1 EN 61010-2-032:2002 Measurement category I (anticipated transient overvoltage 1500 V), Pollution Degree 2 EN 61326:1997+A1:1998+A2:2001 EN 61000-3-2: 2000 EN 61000-3-3: 1995+A1:2001
Dimensions and mass
Cable length Supplied accessories Safety standards Applicable standards EMC
q
Sensor head
q
Power supply plug
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.
3273-50/3276 : approx. 175(W)18(H)40(D) mm, [6.89"(W)0.71"(H)1.57"(D)]
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 3273-50 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)
Maximum measurement conductor: dia. 5 mm [0.20"] Power cable (approx. 1 m [39.37"]) Sensor cable (approx. 1.5 m [59.06"])
1 4
2 3
1 : Not connected 2 : GND 3 : V- (-12V) 4 : V+ (+12V)
* Connector type: LEMO inc./ FFA.0S.304.CLAC42Z
q
BNC output connector
Sensor cable (approx. 2 m [78.74"])
3274/3275 : approx. 176(W)69(H)27(D) mm, [6.93"(W)2.72"(H)1.06"(D)]
Can be connected directly to the BNC input of an oscilloscope or level recorder or similar device.
Output voltage rate: 0.1 V/A (3273-50 / 3276) 0.01 V/A (3274 / 3275)
(Use only equipment with an input impedance of 1 M or more.)
Maximum measurement conductor: dia. 20 mm [0.79"]
4
3273-50 to 3276 CLAMP ON PROBE
3274 3275
s 3274/3275 Specifications (accuracy is guaranteed at 233C [735F] after the power has been on for 30 minutes)
3274
Frequency bandwidth Rise time Continuous maximum input range Maximum peak current value Output voltage rate Amplitude accuracy Noise Input impedance Sensitivity temperature characteristics Maximum rated power Power supply voltage Operating temperature and humidity Storage temperature and humidity Effect of external magnetic fields Max. rated voltage to earth Measurement conductor DC to 10 MHz (-3 dB) * See Fig. 1 on page 2. 35 ns or less 150 Arms * Frequency derating see Fig. 2 on page 2. Non-continuous 300 Apeak 500 A peak at pulse width of 30 ms 0.01 V/A 1.0% rdg. 1 mV (0 to 150 Arms / DC, 45 to 66 Hz) 2.0% rdg. (150 Arms to 300 Apeak / DC, 45 to 66 Hz) 25 mArms or less (measured with 20 MHz bandwidth equipment) * See Fig. 3 on page 2. Within 2% (At 55 Hz/150 A input, 0 to 40C [32 to 104F]) 5.5 VA (Input within the maximum input range.) 12 V 1 V 0 to 40C [32 to 104F] , 80% rh or less (no condensation) -10 to 50C [14 to 122F] , 80% rh or less (no condensation) Max. 150 mA (equivalent) (DC and 60 Hz, Magnetic field of 400 A/m) 600 V CAT-II, 300 V CAT-III (insulated conductor) Diameter max. 20 mm [0.79"] Sensor: approx. 176(W)69(H)27(D) mm; 500 g [6.93"(W)2.72"(H)1.06"(D), 17.6 oz.] Termination unit: approx. 27(W)55(H)18(D) mm [1.06"(W)2.17"(H)0.71"(D)] Sensor cable: approx. 2 m [78.74"] (BNC connector) Power cable: approx. 1 m [39.37"] Hard case1 EN 61010-2-031: 1994, EN 61010-2-032: 1995 Overvoltage category II, III (anticipated transient overvoltage 4000 V), Pollution Degree 2 EN 61326-1: 1997+A1:1998 EN 61000-3-2: 1995+A1:1998+A2: 1998 EN 61000-3-3: 1995
3275
DC to 2 MHz (-3 dB) * See Fig. 1 on page 2. 175 ns or less 500 Arms * Frequency derating see Fig. 2 on page 2. Non-continuous 700 Apeak 0.01 V/A 1.0% rdg. 5 mV (0 to 500 Arms / DC, 45 to 66 Hz) 2.0% rdg. (500 Arms to 700 Apeak / DC, 45 to 66 Hz) 25 mArms or less (measured with 20 MHz bandwidth equipment) * See Fig. 3 on page 2. Within 2% (At 50 Hz/500 A input, 0 to 40C [32 to 104F]) 7.2 VA (Input within the maximum input range.) 12 V 0.5 V 0 to 40C [32 to 104F] , 80% rh or less (no condensation) -10 to 50C [14 to 122F] , 80% rh or less (no condensation) Max. 800 mA (equivalent) (DC and 60 Hz, Magnetic field of 400 A/m) 600 V CAT-II, 300 V CAT-III (insulated conductor) Diameter max. 20 mm [0.79"] Sensor: approx. 176(W)69(H)27(D) mm; 520 g [6.93"(W)2.72"(H)1.06"(D), 18.3 oz.] Termination unit: approx. 27(W)55(H)18(D) mm [1.06"(W)2.17"(H)0.71"(D)] Sensor cable: approx. 2 m [78.74"] (BNC connector) Power cable: approx. 1 m [39.37"] Hard case1 EN 61010-2-031: 1994, EN 61010-2-032: 1995 Overvoltage category II, III (anticipated transient overvoltage 4000 V), Pollution Degree 2 EN 61326-1: 1997+A1:1998 EN 61000-3-2: 1995+A1:1998+A2: 1998 EN 61000-3-3: 1995
Dimensions and mass
Cable length Supplied accessories Safety standards Applicable standards EMC
s 3269/3272 POWER SUPPLY
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.
3272
s 3269 / 3272 Specifications
Compatible sensors Number of power Output voltage Rated output current Power requirements (50/60 Hz)
(sum total of all channels and all output voltage)
3272 3269 3273-50/3274/3275/3276 CLAMP ON PROBE 2* 4 12 V 0.5 V 600 mA 2.5 A
(sum total of all channels)
100V AC10%
(Specify 120, 220 or 240V power supply when ordering.)
3269 *The total current output of the 3272 is 600mA (for two channels). Depending on the current of the measurement object, simultaneous use of both channels may not be available.
AC100 to 240 V10%
The 3269 is capable of powering Maximum rated power 20 VA 4 channels of high current Approx. 73W110H 186D mm Dimensions sensors simultaneously. Mass Approx. 1.1 kg Accessories
170 VA
Approx. 80W119H 200D mm
Approx. 1.1 kg
s Current consumption of the 3273-50 to 3276 (sum of real values).
Power cord, Spare fuse
[ 3273-50 ]
current consumption (mA)
500 400 300 200 100 0 0 10 20 30 AC(f=50Hz) DC
[ 3274 ]
current consumption (mA) current consumption (mA)
600 500 400 300 200 100 0 0 50 100 150 AC (f=50Hz) DC 600 500 400 300 200 100 0 0
[ 3275 ]
current consumption (mA)
600 500 400 300 200 100 0 100 200 300 400 500 600 700 0 10 AC (f=50Hz) DC
[ 3276 ]
AC (f=50Hz) DC
600
20
30
40
50
current to be measured (A)
current to be measured (A)
current to be measured (A)
current to be measured (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
q 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.
9274 9276
The probe cannot be used alone: the 3270 is required.
s 9274/9276 CLAMP ON AC/DC SENSOR Specifications
(Accuracy is guaranteed at 233C [735F] after the power has been on for 30 minutes)
s 3270 Specifications
(Accuracy is guaranteed at 233C [735F] after the power has been on for 30 minutes) Applicable sensor Measurement ranges : 9274/9276 : 0.1/0.2/0.5/1/2/5/10A (using 9274) 1/2/5/10/20/50/100A (using 9276) : 1 V per range : Zero adjust, degaussing, filter, coupling functions and overload indication : 0.5% rdg. 0.05% f.s.(DC and 45 to 66Hz) (input up to 100% of range) 1.2%rdg. (DC and 45 to 66Hz) (input up to 200% of range) : DC; DC to 10 MHz (-3dB) AC; 0.2 Hz to 10 MHz (-3dB) : Not more than 5.5 of range : 50 : 100V AC (50/60Hz), (120, 220, and 240V require specification) : 15 VA max. : Approx. 80(W)125(H)260(D) mm, 1750 g [3.15"(W)4.92"(H)10.23"(D), 61.7 oz.] Accessories : Power cord, spare fuse, 9177 input/output cord
9274
Rated current Output voltage Output resistance Input impedance Continuous maximum input range Maximum peak current value Amplitude accuracy Phase accuracy Frequency bandwidth (-3dB) Sensitivity temperature characteristics (0 to 40C) Power consumption Power supply voltage Operating temperature and humidity Storage temperature and humidity Effect of external magnetic fields
(in 400 A/m AC )
9276
150 A(AC+DC) 1.5 V/150 A (AC+DC) 50
Output voltage Functions
20 A (AC+DC) 2 V/20 A (AC+DC)
0.1 m or less at 55Hz 20 A
0.02 m or less at 55Hz
Amplitude accuracy
150 A
50 A non-continuous (peak value) 400 A non-continuous (peak value) 0.5% rdg. 0.1% f.s. (DC and 45 to 66Hz) 0.2 (45 to 66Hz) DC to 10 MHz 0.1% f.s./C or less 1.5 VA Max. (at rated input) DC to 1 MHz
Frequency band width Crest factor Output resistance Power supply Power consumption
0.05% f.s./C or less 2 VA Max. (at rated input)
Dimensions and mass
12 V 1 V
9274 Frequency characteristics
0 to 40C [32 to 104F] , 80% RH or less (no condensation)
Amplitude ( dB,0dB=1V )
180 135 - 10 90 ( deg. )
Amplitude
- 20 - 30 - 40 rate : 2V/20A
45 0
20 mA equivalent maximum within 0.2%
1 A equivalent maximum within 1%
Phase
- 45 - 90 - 135 - 180
Influence of conductor position Withstand voltage Insulation resistance Max. rated voltage to earth Measurement conductor Cable length Dimensions and mass Supplied accessories
1
100
10k
1M
2200 V AC for 1 minute (electrical circuits to case) At least 100 M at 500 V DC (electrical circuits to case) 600 V peak (insulated wire) Diameter max. 5 mm [0.20"] Diameter max. 20 mm [0.79"]
Frequency
( Hz )
9276 Frequency characteristics
Amplitude ( dB,0dB=1V )
135 - 20 - 30 - 40 - 50 rate : 1.5V/150A 90 ( deg. ) 180
Phase Amplitude
45 0 - 45 - 90 - 135 - 180 10k 1M
Approx. 1.5 m [59.06"] Approx. 175(W)40(H)18(D) mm, 230 g Approx. 145(W)60(H)33(D) mm, 300 g [6.9"(W)1.6"(H)0.7"(D), 8.1 oz.] [5.9"(W)2.4"(H)1.3"(D), 10.6 oz.] Soft case Carrying case
1
100
Frequency ( Hz )
Phase
Phase
-10 to 50C [14 to 122F] , 80% RH or less (no condensation)
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
s 9277 to 9279 UNIVERSAL CLAMP ON CT Specifications
9277
Rated current (AC/DC) Output voltage (AC/DC) Accuracy (23 3C) [73 5F] DC and 45Hz to 66Hz Frequency characteristics (amplitude) (deviation from accuracy) Frequency characteristics (phase) (DC has no provision) Output resistance Input resistance(DC) The maximum permissible input range(DC to 3kHz)*1 Temperature characteristics
(0 to 40C)
9278 9277 500 A
9278
200 A
9279
20 A
2 V f.s. After demagnetization and at least 30 min. warm-up Amplitude: 0.5% rdg. 0.05% f.s. Phase:within 0.2(DC has no provision) DC to 1 kHz : within 1.0% DC to 1 kHz: within 1.0% 1 k to 50 kHz : within 2.5% 1 k to 10 kHz: within 2.5% 10 k to 20 kHz: within 5% 50 k to 100 kHz : within 5% DC to 1 kHz : within 0.5 DC to 1 kHz: within 0.5 1 k to 10 kHz: within 2.5 1 k to 50 kHz : within 2.5 10 k to 20 kHz: within 5.0 50 k to 100 kHz : within 5.0 50 0.05 m or less 50 Arms (75 Apeak) 0.002 m or less 350 Arms (500 Apeak) Sensitivity: within 0.05% rdg./C Offset: within 0.005% f.s./C 0 to 40C [32 to 104F] , 80% RH or less (no condensation) Max. 0.2 A within 0.5% (DC, 55 Hz) Max. 1 A Max. 2 A 0.001 m or less 650 Arms (920 Apeak)
The probe cannot be used alone: the 9555 is required.
9555 SENSOR UNIT
s 9555 Specifications
Output voltage : 2 Vf.s. Power capacity : 12 V, 0.6 A Max. Operating temperature and humidity Storage temperature and humidity : 0 to 40C [32 to 104F] , 80% RH or less (no condensation) : -10 to 50C [14 to 122F] , 80% RH or less (no condensation)
Operating temperature and humidity Effect of external magnetic fields*2 Influence of conductor position Withstand voltage Insulation resistance Max. rated voltage to earth Measurement conductor Cable length Power supply voltage Power consumption Dimensions and mass Supplied accessories
within 1.5% (DC, 55 Hz)
2200 V AC for 1 minute (electrical circuits to case, electrical circuits to core) At least 100 M at 500V DC (electrical circuits to case, electrical circuits to core) 600 Vrms (850 Vpeak)insulated wire Diameter max.20 mm [0.79"] Approx. 1.5m [59.06"] 12 V to 15 V 3.6 W max. 7.2 W max. Approx. 220(W)103(H)43.5(D) mm; 860 g [8.66"(W)4.06"(H)1.71"(D), 30.3 oz.] Approx. 176(W)63(H)34(D) mm; 430 g [6.92"(W)2.48"(H)1.34"(D), 15.2 oz.] 9375 Carrying case Diameter max.40 mm [1.57"]
Power supply : 85 to 250 V AC(47 to 440 Hz) Power consumption : Approx. 1.7 W (at no load) Withstand voltage Insulation resistance Dimensions and mass Accessories : 1500 V AC for 1 minute (power input to case, power input to core) : At least 100 M at 500 V DC (output terminal to core) : Approx. 50(W)100(H)180(D) mm, 700g [1.97"(W)3.93"(H)7.09"(D), 24.7 oz.] : Power cord 1, 9177 input/output cord1, spare fuse 1, rubber foot 4, rack mounting fittings 2
*1 Maximum non-destructive input above 3 kHz is specified separately. *2 DC and 55 Hz, Magnetic field of 400A/m.
9270 to 9272 CLAMP ON SENSOR 5Hz to 50kHz
(9270/9271)
s 9270 to 9272 CLAMP ON SENSOR Specifications
9270
Rated current Continuous maximum input range Amplitude accuracy Phase accuracy 9270 9271 Frequency characteristics (deviation from accuracy) Output voltage Max. rated voltage to earth Measurement conductor Cable length Power supply voltage 9272 20 A AC 50 Arms
9271
200 A AC 300 Arms
9272
20/200 A AC 60 Arms/300Arms
0.5 %rdg. 0.05 %f.s. (45 to 66 Hz) within 0.2 (45 to 66Hz) 10 Hz to 30 kHz: 1.0% 10 Hz to 1 kHz: 1.0% (0.5) 10 Hz to 20 kHz: within 0.5 5 Hz to 10 Hz: 2.5% (2.0) 5 Hz to 50 kHz: 2.5% (within 1.0) 2 Vf.s. (rated current) 600 Vrms (insulated wire) Diameter max. 46 mm [1.81"] Diameter max. 20 mm [0.79"] 5020 mm [1.97"0.79"] bus bar Approx. 3 m [118.11"] 12V to 15V Approx. 62(W)174(H)33(D) mm; 420 g Approx. 145(W)60(H)33(D) mm; 230 g [5.71"(W)2.36"(H)1.30"(D), 8.1 oz.] [2.44"(W)6.85"(H)1.30"(D), 14.8 oz.] 9355 Carrying case
The probe cannot be used alone: the 9555 is required.
Dimensions and mass Supplied accessories
7
s Rated current & Frequency characteristics
AC/DC AC 3275 : DC to 2MHz 9276 : DC to 1MHz
500A
Wave Monitoring
150A
3274 : DC to 10MHz 3273-50 : DC to 50MHz
30A
3276 : DC to 100MHz
20A 500A
Level Monitoring
9274 : DC to 10MHz 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 avoid short circuits and electric shock accidents when the clamp-on sensor is open, do not use on bare conductors.
s Option
3273-50 CLAMP ON PROBE 3274 CLAMP ON PROBE 3275 CLAMP ON PROBE 3276 CLAMP ON PROBE 9270 CLAMP ON SENSOR 9271 CLAMP ON SENSOR 9272 CLAMP ON SENSOR 9274 CLAMP ON AC/DC SENSOR 9276 CLAMP ON AC/DC SENSOR 9277 UNIVERSAL CLAMP ON CT 9278 UNIVERSAL CLAMP ON CT 9279 UNIVERSAL CLAMP ON CT 3269 POWER SUPPLY (for 3273-50 to 3276, 4ch) 3272 POWER SUPPLY (for 3273-50 to 3276, 2ch) 3270 CURRENT MONITOR (for 9274 / 9276) 9555 SENSOR UNIT (for 9270 to 9272 / 9277 to 9279) 9165 CONNECTION CORD (for 3270, BNC-BNC)
9165 3269 3272 3270 9555
DISTRIBUTED BY
HEAD OFFICE : 81 Koizumi, Ueda, Nagano, 386-1192, Japan TEL +81-268-28-0562 / FAX +81-268-28-0568 E-mail: os-com@ hioki.co.jp HIOKI USA CORPORATION : 6 Corporate Drive, Cranbury, NJ 08512 USA TEL +1-609-409-9109 / FAX +1-609-409-9108 E-mail: hioki@ hiokiusa.com
Shanghai Representative Office : 1704 Shanghai Times Square Office 93 Huaihai Zhong Road Shanghai, 200021, P.R.China TEL +86-21-6391-0090, 0092 FAX +86-21-6391-0360 E-mail: info@hioki.cn
All information correct as of Oct. 14, 2004. All specifications are subject to change without notice.
CLAMP-E2-4XM-01H
Printed in Japan

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