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OPERATING MANUAL

AC CLAMP METER

CMP-400

Version 1.6

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Summary of Contents for CMP-400

Page 1: ...OPERATING MANUAL AC CLAMP METER CMP 400 Version 1 6 ...

Page 2: ...automatic or manual regulation of the measurement range DATA HOLD function which facilitates readings of measure ments in the case of insufficient lighting or in inaccessible plac es ZERO function which allows you to make measurements rela tive to a stored reference value the function of automatic switching of the meter into the standby mode in order to prolong the durability of batteries circuit ...

Page 3: ... 12 5 1 AC CURRENT MEASUREMENTS 12 5 2 AC AND DC VOLTAGE MEASUREMENTS 13 5 3 RESISTANCE MEASUREMENTS 14 5 4 CONTINUITY MEASUREMENTS 15 5 5 DIODE MEASUREMENTS 15 5 6 FREQUENCY OR DUTY CYCLE MEASUREMENTS 16 5 7 TEMPERATURE MEASUREMENTS 17 5 8 NON CONTACT AC VOLTAGE MEASUREMENTS 18 6 SPECIAL FUNCTIONS 18 6 1 MANUAL RANGE SELECTION 18 6 2 RELATIVE MODE 19 6 3 DATA HOLD FUNCTION AND BACKLIGHT DISPLAY 1...

Page 4: ...4 11 DISMANTLING AND UTILIZATION 22 12 ATTACHMENTS 22 12 1 TECHNICAL DATA 22 12 2 STANDARD EQUIPMENT 25 12 3 MANUFACTURER 26 ...

Page 5: ...esented in the present manual not be observed The word ATTENTION introduces a description of a situation where non observance of the recommendations presented in the present manual may imply damage for the meter Indications of possible problems are preceded by the word Attention WARNING Before using the instrument acquaint yourself with the pre sent manual and observe the safety regulations and re...

Page 6: ...st be trained regarding the industrial safety regulations Use great care when making measurements if the voltages are greater than 25V AC rms or 35V DC These voltages are consi dered a shock hazard Before use for non contact AC voltage measurements always test the voltage detector on a known live circuit to verify proper operation Set function switch to the appropriate position before measur ing W...

Page 7: ...ealised solely by an authorised service work shop WARNING Do not realise measurements with wet hands WARNING Do not realise measurements in environments in which there are inflammable gases Otherwise operation of the meter under such conditions may cause sparking and explosion ATTENTION Input Limits Function Maximum Input A AC 400A V DC V AC 600V DC AC Frequency Resistance Diode Continuity 250V DC...

Page 8: ...on of the meter for operation Having purchased the meter examine completeness of the con tents of the package Before measurements commence it is necessary to realise the following actions Make sure the conditions of the batteries or accumulators per mit to realise measurements Make sure the casing of the meter and the insulation of the test leads are not damaged WARNING Connection of inappropriate...

Page 9: ...9 4 Functional description 4 1 Measurement sockets and elements of selection of the measurement function Illustration 1 CMP 400 Ω ...

Page 10: ...AC voltage indicator light 3 clamp trigger 4 rotational selector Selection of function OFF meter off V direct and alternative voltage measurement Ω resistance and continuity measurement and diode testing F Fahrenheit temperature measurement C Celsius temperature measurement 4A alternative current measurement up to 4A 40A alternative current measurement up to 40A 400A alternative current measuremen...

Page 11: ...2 LCD display Illustration 2 LCD display of the CMP 400 meter minus sign AC DC AC alternating current and DC direct currrent AUTO AutoRange mode diode test mode continuity check mode HOLD Data Hold mode ZERO Relative Measurement mode Hz frequency duty cycle test mode k M Ω m V C F A units of measure list ...

Page 12: ...nt errors 5 Measurements It is recommended to get acquainted thoroughly with the con tents of the present chapter since it describes the measurement systems the manner of realisation of measurements and the basic principles of interpretation of the results 5 1 AC current measurements WARNING Do not take current readings on circuits where the maximum current potential is not known Do not exceed the...

Page 13: ...clamp is properly placed Otherwise the results of the measurements will not be exact The most exact result we will get if the wire is placed in the middle of clamp 5 2 AC and DC voltage measurements In order to realise a measurement of AC or DC voltage it is necessary to realise the following actions set the function switch to the V position select AC or DC with the MODE button with the RANGE butt...

Page 14: ...on Ω connect the red test lead to sockets V Ω TEMP and the black one to sockets COM make sure symbol is displayed with open test leads and in the case of shorted terminals of the measurement probes the display shows 0 with the RANGE button set the measurement range manually if necessary touch the test probe tips across the circuit or component under test it is best to disconnect one side of the de...

Page 15: ...sockets V Ω TEMP and the black one to sockets COM press the MODE button until appears in the display make sure symbol is displayed with open test leads and in the case of shorted terminals of the measurement probes the display shows 0 touch the test probe tips to the circuit under test read the result of the measurement on the display if the re sistance is 50Ω a tone will sound having done the tes...

Page 16: ...will indicate near 0mV and an open device will indicate OL in both polarities having done the test disconnect the test leads from the meter 5 6 Frequency or duty cycle measure ments WARNING Do not realise measurements if the battery compartment is open In order to realise frequency or duty cycle measurement it is necessary to realise the following actions place the rotational selector in the posit...

Page 17: ... measurement it is necessary to realise the following actions place the rotational selector in the position C or F insert the temperature probe into the negative COM and the V Ω TEMP terminals making sure to observe the correct po larity touch the temperature probe head to the part whose tempera ture you wish to measure keep the probe touching the part under test until the reading stabilizes about...

Page 18: ...sets are often twisted For best results rub the probe tip along a length of the cord to assure placing the tip in close proximity to the live conduc tor Note The detector is designed with high sensitivity Static electric ity or other sources of energy may randomly trip the sensor This is normal operation 6 Special functions 6 1 Manual range selection When the meter is first turned on it automatica...

Page 19: ...ll indicate 11 50V If the new reading is the same as the reference value the display will be zero Press the REL button again to exit the relative mode 6 3 DATA HOLD Function and Backlight display To freeze the LCD meter reading press the HOLD button The data hold button is located on the left side of the meter top button While data hold is active the HOLD display icon appears on the LCD Press the ...

Page 20: ...ch may occur during operation of the meter DESCRIPTION REASON SOLUTION The meter does not turn on Low batteries Replace the batter ies If the situation does not change send the meter for repair Unintelligible and randomly displayed segments of the LCD display Erroneous meas urement after mov ing the meter from a cold environment to a warm place of high humidity Lack of acclimati sation Do not perf...

Page 21: ...f electric shock with a dangerous voltage In order to replace the battery it is necessary to do the following remove all the test leads from the measurement sockets and place rotational selector in the position OFF remove the one rear Phillips head screw open the battery compartment replace the required one 9V battery re assemble the meter 9 Cleaning and maintenance The casing of the meter may be ...

Page 22: ... it must not be placed with waste of another kind Worn out electronic equipment should be sent to a collection point in accordance with the law of worn out electric and electronic equipment Before the equipment is sent to a collection point do not dis mantle any elements Observe the local regulations concerning disposal of packages worn out batteries and accumulators 12 Attachments 12 1 Technical ...

Page 23: ... 30 digits 4 000V 0 001V 1 8 m v 8 digits 40 00V 0 01V 400 0V 0 1V 600V 1V 2 5 m v 8 digits frequency range 50 400Hz Resistance measurement Range Resolution Basic uncertainty 400 0Ω 0 1Ω 1 m v 4 digits 4 000kΩ 0 001kΩ 1 5 m v 2 digits 40 00kΩ 0 01kΩ 400 0kΩ 0 1kΩ 4 000MΩ 0 001MΩ 2 5 m v 3 digits 40 00MΩ 0 01MΩ 3 5 m v 5 digits Frequency measurement Range Basic uncertainty 10Hz 10kHz 1 5 m v 2 digi...

Page 24: ...with EN 60529 IP40 c Pollution degree 2 d Power supply one 9V battery e Clamp size Opening 30mm 1 2 approx f Diode test I 0 3mA U0 1 5V DC g Continuity test I 0 5mA sound signal for R 50Ω h Overrange indication OL displayed i Measurements rate 2 per second nominal j Input impedance 10MΩ V AC DC k Display LCD 4000 counts l Dimensions 197 x 70 x 40 mm m Weigh 183 g n Operating temperature 5 to 40 C ...

Page 25: ...owing norms EN 61010 1 EN 61010 2 032 u Quality standard ISO 9001 12 2 Standard equipment The standard set provided by the manufacturer includes the fol lowing components The CMP 400 meter Test leads 2 pieces 9V battery K Type temperature probe Carrying case Operating manual Guarantee card ...

Page 26: ...ntee and post guarantee service is the following company SONEL S A ul Wokulskiego 11 58 100 Świdnica Tel 48 74 858 38 60 Fax 48 74 858 38 09 E mail export sonel pl Web page www sonel pl Note Service repairs must be realised solely by the manufactur er Made in China for SONEL S A ...

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