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Hioki CM4375, Instruction Manual

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Hioki CM4375 Instruction Manual Download Page 17

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2

Making Measurements

2.1  Inspection Before Measurement

Check if there is any damage to the instrument occurred during storage or shipping and 

YHULI\WKDWLQVWUXPHQWRSHUDWHVQRUPDOO\EHIRUHXVLQJLW,I\RX¿QGDQ\GDPDJHFRQWDFW\RXU

authorized Hioki distributor or reseller.

Check item

…

The battery cover is closed and its screw has 
been securely tightened.

…

There is no damage to the test lead

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metal conductor inside the wire are exposed.

…

There is no foreign matter on the
measurement terminals. (p. 12)

…

The instrument is neither damaged nor cracked.

…

The test leads are not broken.

OK

1 

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 or less

…

No indicators are missing.

(All lit up)

www.

GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

Summary of Contents for CM4375

Page 1: ...EN Instruction Manual Sept 2018 Edition 1 CM4375A961 00 18 09H CM4375 CM4376 AC DC CLAMP METER www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 2: ...www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 3: ...1 1 2 Part Names 12 2 Making Measurements 13 2 1 Inspection Before Measurement 13 2 2 Current Measurement 14 Manual Hold Auto Hold 15 Filter Function 18 MAX value MIN value AVG value PEAK value 19 Rus...

Page 4: ...33 QSXW VSHFL FDWLRQV 0HDVXUHPHQW VSHFL FDWLRQV 35 3 3 Accuracy Table 42 4 Repairs Inspections and Cleaning 57 4 1 Troubleshooting 57 4 2 Error display 59 4 3 Insert Replace Batteries 60 4 4 Cleaning...

Page 5: ...that of someone who graduated from the electrical program at a technical high school Trademark Bluetooth is a registered trademark of Bluetooth SIG Inc USA The trademark is used by HIOKI E E CORPORATI...

Page 6: ...tion Indicates that the instrument may be connected to or disconnected from a live conductor Screen display The instrument screen displays the alphanumeric characters as follows 1 2 3 4 5 6 7 8 9 0 A...

Page 7: ...ue This is usually the name of the currently selected range rdg displayed value The value currently being measured and displayed on the measuring instrument dgt resolution The smallest displayable uni...

Page 8: ...l C0203 Carrying Case LR03 Alkaline battery 2 Instruction Manual Operating Precautions 0990A907 Precautions Concerning Use of Equipment that Emits Radio Waves only for model CM4376 Instruction manuals...

Page 9: ...930 Connection Cable Set 2 Length 1 2 m L4931 Extension Cable Set 2 Length 1 5 m with the coupling connector DT4910 Thermocouples K L4938 Test Pin Set 7 L4939 Breaker Pin Set 4 9804 Magnetic Adapter 8...

Page 10: ...KH EDUULHU ZKLOH WKH LQVWUXPHQW LV LQ XVH See 1 2 Part Names p 12 7KH PD LPXP PHDVXUHPHQW FXUUHQW YDULHV ZLWK WKH IUHTXHQF DQG WKH FXUUHQW WKDW FDQ EH PHDVXUHG FRQWLQXRXVO LV OLPLWHG 2SHUDWLQJ WKH LQV...

Page 11: ...object between the jaws or any insert foreign object into the gap of the sensor head Doing so may worsen the performance of the sensor or the opening closing operation of the sensor head Avoid droppin...

Page 12: ...RQIRUP WR WKH VDIHW VWDQGDUG 1 8VH D WHVW OHDG LQ DFFRUGDQFH ZLWK LWV GH QHG PHDVXUHPHQW category and rated voltage 7R SUHYHQW D VKRUW FLUFXLW DFFLGHQW EH VXUH WR XVH WKH WHVW OHDGV ZLWK WKH VOHHYHV D...

Page 13: ...Magnetic Adapter Set in locations where it may be exposed to rainwater dust or condensation In those conditions the Magnetic Adapter Set may be decomposed or deteriorated The magnet adhesion may be d...

Page 14: ...10 Usage Notes www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 15: ...at can perform true RMS measurement of current simply by clamping it around a circuit In addition to current it provides voltage measurement frequency measurement rush current measurement resistance m...

Page 16: ...indicated in blue lettering 4 Jaw 5 Barrier 6 Serial number The serial number consists of GLJLWV 7KH UVW WZR IURP WKH OHIW LQGLFDWH the year of manufacture and the next two indicate the month of manu...

Page 17: ...er Check item The battery cover is closed and its screw has been securely tightened There is no damage to the test lead LQVXODWLRQ DQG QHLWKHU WKH ZKLWH VKHDWKLQJ QRU metal conductor inside the wire a...

Page 18: ...ry switch 1 4 2 Press for 1 sec X Zero adjustment Frequency detection range of AC current 5 0 A or more DC current polarity detection function p 31 I WKH PHDVXUHG YDOXH LV QHJDWLYH WKH EX HU ZLOO VRXQ...

Page 19: ...Measured value automatically retains Clamp the instrument around a conductor Pressing the HOLD key again cancels the measured value hold function X blinks Pressing the HOLD key for 1 sec cancels the a...

Page 20: ...LQ WKH XFWXDWLRQ UDQJH described in the table in the next page Start End Start End Start End Threshold e g 12 0 A Auto hold e g 99 0 A Auto hold e g 100 0 A Measured value Fluctuation range Time Fluct...

Page 21: ...range within 20 counts 1500 V range within 30 counts 6 000 V 60 00 V 600 0 Vrange 120 counts 1000 V range 20 counts 1500 V range 30 counts Resistance Continuity 600 0 6 000 k 60 00 k 600 0 k range wit...

Page 22: ...ncy Hz Measured value A Frequency characteristics when using the OWHU IXQFWLRQ LQSXW FILTER OFF FILTER ON Passband 100 Hz 7XUQ RII WKH OWHU IXQFWLRQ ZKHQ SHUIRUPLQJ measurement of power supply frequen...

Page 23: ...MIN Can not be used at AUTO AC DC 2 Hz AUTO AUTO AC DC AC DC A DC A AC A 3 4 X Measured value retains Press for 1 sec X Cancel The instrument performs true RMS measurement 1 AVG indicates the average...

Page 24: ...sec X Zero adjustment 2 Maximum wave height PEAK Example screen 250 A Interval during which rush current occurs Dozens to hundreds of milliseconds in duration AC current RMS value INRUSH DC current Ma...

Page 25: ...p 31 I WKH PHDVXUHG YDOXH LV QHJDWLYH WKH EX HU ZLOO VRXQG DQG WKH GLVSOD ZLOO WXUQ UHG WKUHVKROG 9 DC V 2 3 Hz AUTO e g commercial power supply AC voltage measurement Do not touch No overvoltage 5HG...

Page 26: ...Continuity Check Resistance Diode Red display 2 Black Black Black Red Red Red 2 Press for 1 sec Zero adjustment 1 Press for 1 sec Zero adjustment 1 www GlobalTestSupply com Find Quality Products Onlin...

Page 27: ...6 5 4 3 2 1 Capacitance Model DT4910 Thermocouples K DT4910 is broken Black Red Red Black Temperature To change the temperature display unit p 32 www GlobalTestSupply com Find Quality Products Online...

Page 28: ...ns e g Solar power system maintenance e g Checking a car battery Red Black Red Black Simultaneous display of DC current and DC voltage DC power www GlobalTestSupply com Find Quality Products Online at...

Page 29: ...L3DG L3DG PLQLTM L3DG 3UR L3RG WRXFK DQG QGURLGTM devices For more information about this IXQFWLRQDOLW VHH WKH Help function in the application software GENNECT Cross 1 Install the GENNECT Cross on y...

Page 30: ...ched Precautions Concerning Use of Equipment that Emits Radio Waves or go to our website 7KH 0 DYDLODELOLW LV OLPLWHG WR FHUWDLQ FRXQWULHV RU PRUH LQIRUPDWLRQ FRQWDFW RXU DXWKRUL HG LRNL distributor o...

Page 31: ...del CM4376 Turning on the Bluetooth function Bluetooth function OFF Bluetooth function ON lights up Bluetooth function ON DVKHV 6HQGLQJ UHFHLYLQJ GDWD Press for 1 sec www GlobalTestSupply com Find Qua...

Page 32: ...vice is displaying the Instrument Settings VFUHHQ VLPSO PRYH LW FORVH WR D 0 WR automatically pair it with the instrument the app can be paired with up to 8 instruments Allow about 5 to 30 seconds for...

Page 33: ...rm Graph function on the Home screen RU PRUH LQIRUPDWLRQ DERXW HDFK IXQFWLRQ VHH WKH Help function in the GENNECT Cross General Measurement Saves measured values from multiple channels Logging Recordi...

Page 34: ...ght OFF Backlight Auto Power Save APS No operation for 45 min You can turn the display back on by pressing a key or by turning the rotary switch No operation for 15 min Always on Cancelation method p...

Page 35: ...n Factory setting Setting retained Canceling the auto power save APS function OFF ON No Set each time DC current and DC voltage polarity detection function ON OFF OFF Yes Displaying all indicators Ver...

Page 36: ...truction Factory setting Setting retained Switching the temperature unit To change the temperature unit Press for 1 sec To save the setting Press for 1 sec C Yes www GlobalTestSupply com Find Quality...

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Page 61: ...value so that wrapping it once yields a measured value that is twice the actual value and wrapping it twice yields a measured value that is three times the actual value Is the tip of the jaw open Is...

Page 62: ...QJ PDJQHWLF HOG IURP D VRXUFH VXFK DV D QHDUE transformer or high current circuit or in the presence of a strong HOHFWULF HOG IURP D VRXUFH VXFK DV D ZLUHOHVV GHYLFH A sound is being emitted by the in...

Page 63: ...e display it is necessary to repair the instrument Please contact your authorized Hioki distributor or reseller Err 002 ROM error Adjustment data Err 005 ADC error Hardware malfunction Err 008 Bluetoo...

Page 64: ...use only the screw that are originally installed for securing the battery cover in place If you have ORVW D VFUHZ RU QG WKDW D VFUHZ LV GDPDJHG SOHDVH FRQWDFW RXU DXWKRUL HG Hioki distributor or rese...

Page 65: ...ery cover in place Do not adjust the three screws underneath the cover which are used to adjust measured values as doing so may prevent accurate measurement 4 4 Cleaning To clean the instrument wipe i...

Page 66: ...62 Insert Replace Batteries www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 67: ...nnection 2 8 13 23 58 Buzzer sound 21 31 14 C Capacitance 23 55 Continuity 17 22 54 58 Current 14 29 35 D DC current 17 24 43 DC power 24 56 DC voltage 17 24 31 49 Diode 17 22 54 Disconnection Breakin...

Page 68: ...se 18 P PEAK value 19 Polarity detection function 14 21 31 R Red display 14 22 5HG DVK 21 Resistance 17 22 54 Rush current 20 45 S Serial number 12 31 T Temperature 23 55 Test lead 5 8 58 V Voltage 21...

Page 69: ...ase of the product 4 Malfunctions or damage caused by inappropriate handling that violates information found in the instruction manual or on precautionary labeling on the product itself 5 Malfunctions...

Page 70: ...www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 71: ...www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com...

Page 72: ...cument contains copyrighted content 1808EN Printed in Japan It is prohibited to copy reproduce or modify the content of this document without permission Company names product names etc mentioned in th...

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