72-7228 TENMA, 72-7228 Datasheet
72-7228
Specifications of 72-7228
72-7228 Summary of contents
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... P/N: 110401100913 Digital Clamp Multimeter ...
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... Model 72-7228 OPERATING MANUAL ...
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... Model 72-7228: OPERATING MANUAL Table of Contents Title Overview Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure Functional Buttons The Effectiveness of Functional Buttons Display Symbols Measurement Operation A. DC/AC Voltage Measurement B. Measuring Resistance C. Testing Diodes D. Testing for Continuity E ...
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... Title G. DC Current Measurement H. AC Current Measurement Sleep Mode Specifications A. General Specifications B. Environmental Requirements Accuracy Specifications A. DC Voltage B. AC Voltage C. Resistance D. Diode Test E. Continuity Test F. Frequency G. Duty Cycle H. DC Current Model 72-7228: OPERATING MANUAL 2 Page ...
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... Model 72-7228: OPERATING MANUAL Title I. AC Current Maintenance A. General Service B. Replacing the Battery 3 Page ...
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... To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe Operation” carefully before using the Meter. Digital Clamp Multimeter Model 72-7228 (hereafter referred to as “the Meter”) features 3 5/6 digits and a 6666 count display. It uses large scale integrated circuit with double integrated A/D converter as its core and has full range overload protection ...
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... Model 72-7228: OPERATING MANUAL Inspection Open the package case and take out the Meter. Carefully check the following items for missing or damaged parts: Item Description Operating manual 1 Test Lead 2 Carry case 3 9V Battery (NEDA1604A or 6LF22 the event items are missing or damaged, contact your dealer immediately. ...
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... In this manual, a Warning identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test. A Note identifies the information that user should pay attention to. International electrical symbols used on the Meter and in this Operating Manual are explained on page 10. Model 72-7228: OPERATING MANUAL 6 ...
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... Model 72-7228: OPERATING MANUAL Rules For Safe Operation Warning To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the equipment under test, adhere to the following rules: Before using the Meter inspect the case. Do not use the Meter damaged or the case (or part of the case) is removed ...
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... When using the test leads, keep your fingers behind the finger guards. To avoid electric shock, do not touch the bare wires, connectors, unused input terminals or the circuit under testing during measurement. Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity and diode. Model 72-7228: OPERATING MANUAL 8 ...
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... Model 72-7228: OPERATING MANUAL Replace the battery as soon as the battery indicator low battery, the Meter might produce false readings that can lead to electric shock and personal injury. When servicing the Meter, use only the same model number or identical electrical specifications replacement parts. ...
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... International Electrical Symbols AC (Alternating Current) DC (Direct Current Ground Double Insulated Warning. Refer to the Operating Manual Low Battery Continuity Test Diode Danger of High Voltage Conforms to Standards of European Union Model 72-7228: OPERATING MANUAL 10 ...
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... Model 72-7228: OPERATING MANUAL The Meter Structure (see figure 1) 1. Hand Guards: to protect user’s hand from touching the dangerous area. 2. Trigger: press the lever to open the transformer jaws. When the pressure on the lever is released, the jaws will close. 3. Functional Buttons 4 ...
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... Press HOLD to enter the Hold mode. The Meter will beep. HOLD Press HOLD again to exit the Hold mode to return to measurement mode, the Meter will beep. You may also turn the rotary switch or press SELECT button to exit the Hold mode. Model 72-7228: OPERATING MANUAL 12 ...
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... Model 72-7228: OPERATING MANUAL Button Operation Performed HOLD Press HOLD button for 2 seconds when turning on the Meter to display full icon. Hz When the Meter is at %Hz, V frequency and duty cycle. ZERO Press ZERO to zero the display before measuring DC current. , press Hz to measure ...
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... Rotary Switch Positions SELECT V N/A %Hz 66A N/A 1000A N/A 66A 1000A Model 72-7228: OPERATING MANUAL Functional Buttons MAX/MIN HOLD 14 ZERO Hz N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ...
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... Model 72-7228: OPERATING MANUAL Display Symbols (see figure 2) Figure 2 15 ...
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... AUTO 7 RMS Model 72-7228: OPERATING MANUAL Meaning Indicator for Surge current Minimum reading displayed Maximum reading displayed Indicator for zeroing Data hold is active The Meter is in the auto range mode in which the Meter automatically selects the range with the best resolution. ...
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... Model 72-7228: OPERATING MANUAL Number Symbol Hz, kHz, MHz 17 mV Meaning Sleep mode is on Diode test The continuity buzzer Ohm. The unit of resistance :Kilohm. 1x10 or 1000 ohms 6 M :Megohm. 1x10 or 1,000,000 ohms Hz: Hertz. The unit of frequency. 3 KHz: Kilohertz. 1x10 or 1000 hertz. 6 MHz: Meghertz. 1x10 or1,000,000 hertz ...
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... Measurement Operation A. DC/AC Voltage Measurement (see figure 3) Warning To avoid personal injury or damage to the Meter from eletric shock, do not attempt to measure voltages higher than 600V AC/DC, although readings may be obtained. Model 72-7228: OPERATING MANUAL Red Black Figure 3 18 Red Black ...
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... Model 72-7228: OPERATING MANUAL The DC Voltage ranges are: 6.6V, 66V and 600V The AC Voltage ranges are: 6.6V, 66V and 600V To measure DC/AC voltages, connect the Meter as follows: 1. Insert the red test lead into the V Hz terminal and black test lead into the COM terminal ...
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... Insert the red test lead into the V Hz terminal 1. and black test lead into the COM terminal. Set the rotary switch to 2. measurement is a default or press SELECT to switch to measurement mode. Model 72-7228: OPERATING MANUAL and 66M Resistance 20 Red Black Figure 4 ...
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... Model 72-7228: OPERATING MANUAL 3. Connect the test leads across with the object being measured. The measured value shows on the display. Note To obtain a more precise reading, you could remove the objects being tested from the circuit when measuring. When resistance measurement has been completed, disconnect the connection between the test leads and the circuit under test and remove test leads from the input terminals ...
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... The diode test sends a current through the semicondutor junction, then measures the voltage drop across the junction. A good silicon junction drops between 0.5V and 0.8V. To test the diode out of a circuit, connect the Meter as follows: Model 72-7228: OPERATING MANUAL Figure 5 22 Red Black ...
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... Model 72-7228: OPERATING MANUAL 1. Insert the red test lead into the V Hz terminal and black test lead into the COM terminal. 2. Set the rotary switch to mode. 3. For forward voltage drop readings on any semiconductor component, place the red test lead on the component’s anode and place the black test lead on the component’ ...
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... The buzzer sounds if the resistance of a circuit under test is less than The buzzer may or may not sound if the resistance of a circuit under test is between 30 to 100 . 5. The buzzer does not sound if the resistance of Model 72-7228: OPERATING MANUAL and press measurement mode. 24 Red Black Figure 6 ...
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... Model 72-7228: OPERATING MANUAL a circuit under test is higher than 100 . Note When continuity testing has been completed, disconnect the test leads from the circuit under test and remove the test leads from the input terminals. 25 ...
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... COM terminal. 2. Set the rotary switch to %Hz. Frequency measurement mode is a default or press SELECT to switch to Hz measurement mode. 3. Connect the test leads across with the object Model 72-7228: OPERATING MANUAL Figure 7 26 Red Black ...
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... Model 72-7228: OPERATING MANUAL being measured. The measured value shows on the display. Note When frequency measurement has been completed, disconnect the test leads from the circuit under test and remove the test leads from the input terminals. 27 ...
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... COM terminal. 2. Set the rotary switch to %Hz. Press SELECT to switch to % measurement mode. 3. Connect the test leads across with the object being measured. The measured value shows on the display. Model 72-7228: OPERATING MANUAL Figure 8 28 Red Black ...
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... Model 72-7228: OPERATING MANUAL Note When duty cycle measurement has been completed,disconnect the test leads from the circuit under test and remove the test leads from the input terminals. 29 ...
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... Center the conductor within the transformer jaw, then release the Meter slowly until the trasnformer jaw is completely closed, Make sure the conductor to be tested remians placed at the center of the transformer ,The Meter can only measure one conductor at a time. Model 72-7228: OPERATING MANUAL or 1000A . 30 Figure 9 ...
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... Model 72-7228: OPERATING MANUAL Note If the Meter does not display 00.00 when 66A zeroing. After zeroing, it allows 10 digits bouncing reading. While in the 66A range, if the meter does not display 00.00, press ZERO to zero the meter.the meter should display 0, and the ZERO button is inoperative. ...
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... Press the lever to open the transformer jaw. 4. Center the conductor within the transformer jaw, then release the Meter slowly until the trasnformer jaw is completely closed, Make sure the conductor to be tested remains placed at the center of the Model 72-7228: OPERATING MANUAL or 1000A . 32 Figure 10 ...
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... Model 72-7228: OPERATING MANUAL transformer jaw, The Meter can only measure one conductor at a time. 5. When the measuring current >1A, press Hz button to step through AC current, frequency and duty cycle measurement mode. But the frequency or duty cycle readings obtained from this range is only for reference. ...
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... Note When current measurement has been completed, press the button to open the jaw, and remove the conductor away from the transformer jaw of the Meter. Model 72-7228: OPERATING MANUAL 34 ...
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... Model 72-7228: OPERATING MANUAL Sleep Mode To preserve battery life, the Meter automatically turns off after 15 minutes of inactivity. The Meter beeps 3 times one minute before entering Sleep Mode and one long beep just before entering Sleep Mode. The Meter can be activated by turning the rotary switch or pressing the button based on ‘ ...
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... Measurement Deviation: The conductor being meaured is not placed in the center of the jaw during AC/DC current measurement, it will cause extra 1% deviation based on the stated accuracy. Drop Test: 1 meter drop test passed. Max. Jaw Size: 55mm diameter. Projected Max. Current conductor size: 45mm diameter. Power battery (6LF22 1604A) Model 72-7228: OPERATING MANUAL 36 ...
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... Model 72-7228: OPERATING MANUAL Battery Life: typically 150 hours (alkaline battery) Dimensions: 285.3mm x 105mm x 44.5mm Weight: Approximate 533g (battery included) B. Environmental Requirements The Meter is suitable for indoor use. Altitude: Operating: 2000m Storage: 10000m Safety/ Compliances: IEC61010-1; IEC61010-2-032. CAT.II 600V, CAT.III 300V over voltage and double insulation standard, pollution degree 2 ...
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... Accuracy Specifications Accuracy: (a% reading + b digits), guarantee for 1 year. Operating temperature: 23 Relative humidity: 80%R.H Temperature coefficient: 0.1x(specified accuracy)/ Voltage Range Resolution 6.600V 1mV 66.00V 10mV 600.0V 100mV Remark: Input Impedance: 10M Model 72-7228: OPERATING MANUAL 5 Accuracy (0.8%+1) 38 Overload protection 600V DC/AC ...
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... Model 72-7228: OPERATING MANUAL B. AC Voltage Range Resolution 6.600V 1mV 66.00V 10mV 600.0V 100mV Remarks: Input Impedance: 10M Frequency Response: 40Hz~400Hz Change to AC: Combine AC and True RMS response method. Input sine wave to adjust. Non sine wave signals must be adjusted based on the following data: Peak factor: 1 ...
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... C. Resistance Range Resolution 660.0 0.1 6.600k 1 66.00k 10 660.0k 100 6.600M 1k 66.00M 10k D. Diode Test Range Resolution 1mV Model 72-7228: OPERATING MANUAL Accuracy Overload protection (1.2%+2) (1%+2) 250VAC (1.2%+2) (1.5%+2) Accuracy Overload protection 0.5V~0.8V (Open circuit voltage 250VAC approx. 3.0V) 40 ...
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... Model 72-7228: OPERATING MANUAL E. Continuity Test Range Resolution 0.1 Remark: The buzzer may or may not sound when the resistance of a circuit under test is between 30 ~100 The buzzer will not sound when the resistance of a circuit under test is > 100 Accuracy Overload protection Around 30 ,the buzzer will sound ...
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... Remarks: Input Sensitivity (a) as follows: When a 10Hz: the Meter does not respond When 10Hz < a 100kHz: 300mV rms When a >100kHz: 600mV rms Model 72-7228: OPERATING MANUAL Accuracy Overload protection (0.1%+3) 250VAC 42 ...
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... Model 72-7228: OPERATING MANUAL G. Duty Cycle Range Resolution 0.1%~99.9% 0. Current Range Resolution 66.00A 0.01A 1000A 1A Warning The operating temperature must be 0 Accuracy Overload protection For reference only 250VAC Accuracy Overload protection (1.5%+12) 1000A DC/AC (1.5%+ when measuring current. 43 ...
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... Press ZERO button to display zero. 4. Turn on the current of tested conductor reading the stable value of clamp meter. 5. The obtained reading will be more precise. Model 72-7228: OPERATING MANUAL 44 ...
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... Model 72-7228: OPERATING MANUAL I. AC Current Range Resolution 66.00A 0.01A 1000A 1A Warning The operating temperature must be 0 Remarks: Change to AC: Combine AC and True RMS response method. Input sine wave to adjust. Non sine wave signals must be adjusted based on the following data: Peak factor: 1.4~2.0, add 1.0% on the stated accuracy. ...
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... Turn the Meter power off when it is not in use. Take out the battery when the meter is not to be used for a log period of time. Do not use or store the Meter in a place of humidity, high temperature, explosive, inflammable and strong magnetic field. Model 72-7228: OPERATING MANUAL 46 ...
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... Model 72-7228: OPERATING MANUAL B. Replacing the Battery (see figure 12) Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator “ ” appears. Make sure the transformer jaw and the tets leads are disconected from the circuit being tested before opening the case bottom ...
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... Remove the screw from the battery compartment, and separate the battery compartment from the case bottom. 4. Take out the old battery and replace with a new 9V battery (6LF22, 1604A). 5. Rejoin the case bottom and the battery compartment, and reinstall the screw. Model 72-7228: OPERATING MANUAL 48 ...
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... Model 72-7228: OPERATING MANUAL This operating manual is subject to change without notice. * END * 49 ...
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... Copyright 2007 Tenma Test Equipment. All rights reserved. Tenma Test Equipment 405 S. Pioneer Blvd. Springboro,Ohio 45066 www.tenma.com Model 72-7228: OPERATING MANUAL 50 ...