REED CM-9930 Скачать руководство пользователя страница 3

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Safety

To ensure safe operation and service of this meter, follow these 

 

instructions:
•  Ensure that the DC 9V battery is connected to its snap terminal with the 

right polarity and correctly placed in the battery compartment 

•  Place the Red and Black test leads into the proper input terminal before 

taking any measurements

•  Remove one of the test leads from the circuit before changing the 

 

measurement range

•  Be sure to release the data hold button before taking a new 

 

measurement otherwise the display reading will freeze permanently

•  Do not allow the input terminal to exceed the maximum rated voltage
•  Always switch the function rotary switch to the OFF position when the 

instrument is not operation

•  Remove the battery if the instrument will not be used for an extended 

period of time

•  Even though the ohm and capacitance ranges have an overload 

 

protection circuit, it is prohibited to apply any voltage to the input 

 

terminal when taking measurements

•  The water resistance casing is applicable for the front panel on the 

instrument only. Do not throw the instrument into water or the meter will 
be damaged permanently

•  When changing the test leads you should only use the replacements 

that have the approval of CAT III-1000V

•  Only use a dry cloth to clean the plastic case

Caution: Risk of electric shock.

Caution: Do not apply overload voltage or current to the input

 

terminal. Always remove test leads before opening 

 

 

the battery cover.

Содержание CM-9930

Страница 1: ...reedinstruments www com Model CM 9930 True RMS AC DC Clamp Meter Instruction Manual...

Страница 2: ...t 8 Continuity Check 8 Diode Test 8 9 AC Current Measurement Clamp on 9 DC Current Measurement Clamp on 9 AC Current Measurement Direct input 10 DC Current Measurement Direct input 10 Capacitance Meas...

Страница 3: ...ways switch the function rotary switch to the OFF position when the instrument is not operation Remove the battery if the instrument will not be used for an extended period of time Even though the ohm...

Страница 4: ...ers Specifications Display 15mm 0 6 4 digit LCD max indication 4000 Measurement Range AC DC ohms diode Hz capacitance duty cycle and continuity beeper Polarity Automatic Switching indicates negative p...

Страница 5: ...Clamp on 400A 0 1A 2 5d AC DC 2000A 1000V 2000A 1A 2 8d Ohms 400 ohm 0 1 ohm 1 5d AC DC 400V 4K ohm 1 ohm 40K ohm 10 ohm 400K ohm 100 ohm 4M ohm 1K ohm 2 2d 40M ohm 10K ohm 3 5 5d Capacitance 50nF 10p...

Страница 6: ...less than the 30MHz only The accuracy of the capacitance ranges are after the zero adjustment see page 11 has been executed Instrument Description 1 Clamp jaws 10 Manual range select button 2 Trigger...

Страница 7: ...ars when the automatic range mode is active Appears when the continuity beeper is active mV V Units for voltage measurements K M Units for resistance measurements Appears when the diode function is ac...

Страница 8: ...l now automatically select the suitable measurement range While in auto range mode press the range button to hold the range Continuity Check Connect the Black test lead into the COM terminal Connect t...

Страница 9: ...r to open the current sensor jaws and clamp it around the measuring conductor only DC Current Measurement Clamp on Move the function rotary switch to the 2000A position and press the function button u...

Страница 10: ...value more than 400mA otherwise the protection fuse will break When taking a direct input measurement and the meter shows a value of 0 check if the protection fuse is broken Capacitance Measurement No...

Страница 11: ...tton and the displayed value will hold and will appear Press the hold button again to release the data hold function Relative Operation While taking a measurement the meter will store the last measure...

Страница 12: ...replace the housing case Battery Replacement Caution Remove test leads before opening the battery cover 1 When the LCD display shows you will need to replace the battery 2 Loosen the screw on the batt...

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