Easily Get Into Tight Spaces
Innovative Jaw Provides Remarkable Accessibility
Inrush Current Measurement Accuracy Guaranteed
DESCRIPTION
Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CM4375 is a 1000A AC/DC True RMS clamp meter that features a uniquely designed slim jaw that lets you easily get into the narrow gaps between cables in crowded electrical distribution boxes without fear of damaging the cables or the clamp meter. The broad -25℃ to 65℃ operating temperature range and IP54 dustproof and waterproof enclosure to enable professionals to work quickly in challenging situations including the development, repair, and maintenance of equipment and devices such as electric vehicles. Additionally, the high-voltage DC measurement capability of up to 1700 V is ideal for the clamp maintenance inspections of electrical and solar power equipment.
Key Features
• Easily get into tight spaces between cables thanks to thin sensor structure
• Measure up to 1000 A
• Automatic AC/DC function helps boost work efficiency
• Measure DC voltages of up to 1700 V
• Simultaneously measure inrush current in RMS and crest values
• Expanded -25 °C to 65 °C operating temperature range • 3 year guarantee CAT IV 600 V | CAT III 1000 V
To request a demo or get a quote, please contact us.
MODEL NO. (ORDER CODE)
| CM4375 |
|---|
MADE FOR REAL-WORLD SITUATIONS UNCOMPROMISING DESIGN
Panel overcrowding is commonly found in many power distribution breakers and termination boxes. The newly designed thin sensor gets into even the most limited spaces. Eliminate the issues of trying to find the right wire or forcing the clamp around thick cables.
DAMAGE-RESISTANT JAWS! GUARANTEED FOR 30,000 OPEN-CLOSE CYCLES
The new and improved design features stronger jaws (the current sensor portion of the instrument) and a dramatic boost in the duration of the warranty from 10,000 to 30,000 open-close cycles to ensure the instrument will provide even more years of reliable use. The CM4375, CM4376, CM4141 and CM4142 deliver the dual functionality of ease of clamping and resistance to damage.
INRUSH (RUSH CURRENT): ASSESS TRANSIENT CURRENTS AT MOTOR STARTUP
The CM4000 Series can simultaneously measure inrush current in RMS as well as maximum crest values at motor startup and for welding currents. The clamp meters automatically detect the duration of the inrush current (which can range from several dozen milliseconds to several hundred milliseconds) and measure the current during that interval, enabling them to yield more accurate measurements than standard clamp-on meters whose measurement interval is fixed to 100 ms. Use the inrush current feature for motor installation and maintenance to prevent circuit breakers from tripping, especially with high efficiency motors that have inrush current many times greater than the steady-state current of the motor.
VIDEO: USE A CLAMP METER TO MEASURE STARTING CURRENT
Learn the key considerations when choosing a clamp-on current meter to measuring the starting current of a motor or engine. Check the waveforms on a mobile device with our Bluetooth Model CM4376.
BASIC SPECIFICATIONS (ACCURACY GUARANTEED FOR 1 YEAR, POST-ADJUSTMENT ACCURACY GUARANTEED FOR 1 YEAR)
| DC Current range | 1000 A, (Max. display 999.9 A) , Basic accuracy: ±1.3% rdg. ±0.3 A (at 30.1 A – 999.9 A) |
|---|---|
| AC Current range | 1000 A (Max. display 999.9 A, 10 Hz to 1 kHz, True RMS), Basic accuracy 45-66 Hz: ±1.3% rdg. ±0.3 A (at 30.1 A – 900.0 A) |
| Crest factor | 1.5 |
| DC+AC Current range | 1000 A (DC, 10 Hz to 1 kHz, True RMS), Basic accuracy DC, 45-66 Hz: ±1.3% rdg. ±1.3 A (at 30.1 A – 900.0 A) |
| DC Power range | 0.0 VA to 1700 kVA (Automatically switched based on voltage range), Basic accuracy: ±2.0% rdg. ±20 dgt. |
| DC Voltage range | 600.0 mV to 1500 V, 5 ranges, Basic accuracy: ±0.5% rdg. ±0.5 mV (at 600 mV) |
| AC Voltage range | 6.000 V to 1000 V, 4 ranges (15 Hz to 1 kHz, True RMS), Basic accuracy: ±0.9% rdg. 0.003 V (at 6 V) |
| DC+AC Voltage range | 6.000 V to 1000 V, 4 ranges, Basic accuracy: DC, 45-66 Hz: ±1.0% rdg. ±0.023 V (at 6 V) |
| Resistance range | 600.0 Ω to 600.0 kΩ, 4 ranges, Basic accuracy: ±0.7% rdg. ±5 dgt. |
| Electrostatic capacity range | 1.000 μF to 1000 μF, 4 ranges, Basic accuracy: ±1.9% rdg. ±5 dgt. |
| Frequency range | 9.999 Hz to 999.9 Hz, Basic accuracy: ±0.1% rdg. ±1 dgt. |
| Temperature (K) | -40.0 to 400.0 ˚C, add temperature probe accuracy to basic accuracy of ±0.5% rdg. ±3.0 ˚C |
| Other functions | Automatic AC/ DC detection, DC current and DC voltage polarity detection function, MAX/ MIN/ AVG/ PEAK MAX/ PEAK MIN value display, Low-pass filter function, Display value hold, Auto hold, Backlight, Auto power save, Buzzer sound, Zero-adjustment |
| Dustproof, waterproof | IP20 (Measurement of voltage or current of a hazardous live conductor under completely dry conditions) IP50 (Measurement of resistance under completely dry conditions) IP54 (Storage or measurement of current of an insulated conductor) |
| Interface | N/A |
| Power supply | LR03 Alkaline battery ×2, Continuous use: 40 hr (Backlight OFF) |
| Core jaw diameter | φ34 mm (1.34 in) |
| Smallest dimension of jaw cross-section | 9.5 mm (0.37 in) |
| Dimensions and mass | 65 mm (2.56 in) W × 242 mm (9.53 in) H × 35 mm (1.38 in) D mm, 330 g (11.6 oz) |
| Accessories | TEST LEAD L9207-10, CARRYING CASE C0203, LR03 Alkaline battery ×2, Instruction Manual ×1, Precautions Concerning Use of Equipment that Emits Radio Waves ×1 |
CATALOGS
CATALOG: AC/DC CLAMP METER AC CLAMP METER SERIES 
CLAMP METER SERIES -SERIES_CLAMPMETERS_E10-1ZM
WIRELESS ADAPTER Z3210
MANUALS
AC/DC CLAMP METER CM4375,CM4376
DECLARATION OF CONFORMITY
DECLARATION OF CONFORMITY – AC CLAMP METER
OPTIONS
Input cable (F)
* Voltage input via banana terminals limited by the voltage specifications of the respective input unit.
EXTENSION CABLE SET L4931
Expands the length of the cable with banana plug, 1.5 m (4.92 ft) length
ALLIGATOR CLIP SET L4935
Attaches to the tip of the banana plug cable, CAT IV 600V, CAT III 1000V
BUS BAR CLIP SET L4936
Attaches to the tip of the banana plug cable, CAT III 600V
MAGNETIC ADAPTER SET L4937
Attaches to the tip of the banana plug cable, CAT III 1000V
Input cable options
Test Pin Set L4932 is required when using the Small Alligator Clip Set L4934.
TEST PIN SET L4932
Attaches to the tip of the banana plug cable, CAT IV 600V, CAT III 1000V
SMALL ALLIGATOR CLIP SET L4934
Attaches to the tip of the L4932, L9207-10/DT4911, L9206, CAT III 300V, CAT II 600V
TEST PIN SET L4938
Attaches to the tip of the banana plug cable, CAT III 600V
BREAKER PIN SET L4939
Attaches to the tip of the banana plug cable, CAT III 600V
Options for Differential Probes
Can also be used with accessories such as L4936/L4937/L4931 as available for other testers.
GRABBER CLIP 9243
Attaches to the tip of the banana plug cable, Red/ Black: 1 each, 196 mm (7.72 in) length, CAT III 1000 V
Options for Test leads
Options for the L4930
MAGNETIC ADAPTER 9804
Attaches to the tip of voltage cord, φ11 mm (0.43 in), compatible M6 pan screws
Other options
*C0203 is bundled.
CARRYING CASE C0203
Temperature measurement
THERMOCOUPLES(K) DT4910
K type, tip exposed, 0.3 mm (0.01 in) diameter, 80 cm (2.62 ft) length, -40 to 260 °C (-40 to 500 °F), tolerance ±2.5 °C
Test leads A
Options for the L9207-10
CONTACT PIN SET L4933
Attaches to the tip of the Test Lead L9207-10/DT4911, L9206, 70V DC/ 33V AC
TEST LEAD L9207-10
90 cm (2.95 ft) length
Test leads B
Options for the L4930, Test Pin Set L4932 is required when using the Small Alligator Clip Set L4934.
CONNECTION CABLE SET L4930
1.2 m (3.94 ft) length
Voltage Input
*The L1000 is bundled with PQ3198 *Please inquire about voltage cord extension
GRABBER CLIP 9243
Attaches to the tip of the banana plug cable, Red/ Black: 1 each, 196 mm (7.72 in) length, CAT III 1000 V
EXTENSION CABLE SET L4931
Expands the length of the cable with banana plug, 1.5 m (4.92 ft) length