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2000 A DCA/ACA CLAMP + DMM, true rms DCA/ACA CLAMP METER Model : CM-9930 Your purchase of this DCA/ACA CLAMP METER marks a step forward for you into the field of precision measurement. Although this CLAMP METER is a complex and...
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Caution Symbol Caution : * Risk of electric shock ! Caution : * Do not apply the overload voltage, current to the input terminal ! * Remove test leads before open the battery cover ! * Cleaning - Only use the dry cloth to clean the plastic case ! Environment Conditions * Installation categories III .
Operating Temp. 0 to 50 to 122 ℃ ℃ ℉ ℉ Operating Less than 80% RH. Humidity Weight 380 g/0.85 LB (including battery). Dimension HWD : 255 x 73 x 38 mm. (10 x 2.9 x 1.5 inch) Max. Jaw 60 mm ( 2.36 inch ) Dia.
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Function Range Reso- Accuracy Overload lution Protection Ohms 400 ohm 0.1 ohm 4 K ohm 1 ohm ± ( 1 % + 5 d ) 40 K ohm 10 ohm 400 K ohm 100 ohm ± ( 2 % + 2 d ) 4 M ohm 1 K ohm AC / DC 400V...
3. FRONT PANEL DESCRIPTION Fig. 1 Current Sense Jaws Function button ( DC/AC, ohm, Trigger Continuity, Diode Capacitance ) Function indicator 3-10 Manual range select button Function rotary switch 3-11 Display DCA zero button 3-12 uA/mA direct current input Relative button terminals Data hold / Back light 3-13...
4. PRECAUTIONS & PREPARATIONS FOR MEASUREMENT 1) Ensure that the DC 9V battery is connected to its snap terminal with the right polarity and placed in the battery compartment correctly. 2) Place the Red & Black Test Leads into the proper input terminal before making measurement.
5. MEASURING PROCEDURE 5-1 Symbols & units of display Symbols / Descriptions Units Appears when selecting DCV or DCA mode. Appears when selecting ACV & ACA mode. Appears when the " Data hold " function is operated. Appears when the " Relative " function is operated.
5-2 DCV, ACV Measurement 1) Connect BLACK test lead into " COM " terminal. 2) Connect RED test lead into " V " terminal. 3) If measure " DCV ", select the " Function rotary switch " ( 3-4, Fig. 1 ) to the " V " position then push the "...
" " position then push the " FUNC. button " ( 3-9, Fig. 1 ) for display show " ". when the resistance value is less than 10 ohm, the beeper sound will be generated. 5-5 Diode Test 1) Connect BLACK test lead into " COM " terminal. 2) Connect RED test lead into "...
5-6 AC Current Measurement ( Clamp on ) 1) Select the " Function rotary switch " ( 3-4, Fig. 1 ) to the " 2000A " position then push the " FUNC. button " ( 3-9, Fig. 1 ) for display show " ".
5-8 AC Current measurement (Direct input) 1) Connect BLACK test lead into " COM " terminal. 2) Connect RED test lead into " uA, mA " terminal. 3) If measure " uA " ( 400 uA, 4000 uA ), select the "...
5-10 Capacitance Measurement 1) Connect BLACK test lead into " COM " terminal. 2) Connect RED test lead into " " terminal. 3) Select the " Function rotary switch " ( 3-4, Fig. 1 ) to the " " position then push the " Function button " ( 3-9, Fig.
5-12 Duty Cycle Measurement All the measuring procedures are same as above 5-11 ( Frequency measurement ) except push the " Hz/% " ( 3-8, Fig. 1 ) for display show " % ". 5-13 Data Hold Operation 1) During the measurement, pushing the " Hold button " ( 3-7, Fig.
6. MAINTENANCE 6-1 Replacement of Battery Remove test leads before Caution : open the battery cover ! 1) When the LCD display shows " ". It is necessary to replace the battery, However in-spec. measurement may still be made for several hours after " Low battery indicator "...
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