Extech Instruments 382400 Скачать руководство пользователя страница 5

382400  V1.1   06/07 

Operation 

NOTES

: Read and understand all 

Warning

 and 

Caution

 statements in this operation 

manual prior to using this meter. Set the function select switch to the OFF position when the 
meter is not in use. 

AC True RMS Current Measurements 

 

WARNING: 

Ensure that the test leads are disconnected from the meter before making 

current clamp measurements. 

1. 

Set the Function switch to the 

A

 position. 

2. 

Select the fundamental frequency (50Hz or 60Hz) with the 

50Hz-60Hz 

push-button. 

The LCD display will reflect the selected 
frequency. 

3. 

Open the clamp loop by pressing the latch tabs 

and disconnecting the clamp coupling connector. 

4. 

Fully enclose only one conductor centered inside 

the clamp loop. Allow at least 25mm between the 
conductor and the clamp coupling connector. 

5. 

The meter’s LCD will display the current (A) and 

frequency (Hz) readings.  

Note: For measurements lower than 3A, the meter’s 

frequency display will indicate ‘0’. 

‘OL’ is displayed when the measurement exceeds 
the specified maximum limit. 

 

AC True RMS Voltage Measurements 

WARNING: 

Maximum input is 600Vac rms. Do not attempt to take any voltage 

measurement that exceeds this limit. Exceeding the limit could cause electrical shock and 
damage to the meter. 

1. 

Insert the black test lead into the negative 

COM

 terminal and the red test lead into the 

positive 

V

 terminal. 

2. 

Set the function switch to the 

V

 position. 

3. 

Select the fundamental frequency (50Hz or 60Hz) 

with the 

50Hz-60Hz 

push-button. The LCD display 

will reflect the selected frequency. 

4. 

Connect the test leads in parallel to the circuit under 

test. 

5. 

Read the voltage measurement (V) and frequency 

(Hz) on the LCD display. ‘OL’ is displayed when the 
measurement exceeds the specified maximum limit. 

Note: For measurements lower than 30V, the 
meter’s frequency display will indicate ‘0’. 

Содержание 382400

Страница 1: ... Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com Back to the Extech 382400 Product Page Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com ...

Страница 2: ...der normal use hazardous voltages may be present Double insulation SAFETY NOTES Do not exceed the maximum allowable measurement ranges Set the function switch to the OFF position when the meter is not in use Remove the batteries if the meter is to be stored for longer than 60 days WARNINGS Do not install the flexible current probe around bare conductors carrying a voltage ranging from 30V to 600V ...

Страница 3: ... Input Current Amperes 3000A AC Voltage Volts 600V AC PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY I Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which measures are taken to limit the transient overvoltages to an appropriate low level Note Examples include protected electronic circuits OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATEGORY...

Страница 4: ...N MAX PEAK mode button 6 Function select switch 7 50 60Hz select push button 8 Flex Clamp probe 9 Clamp coupling mechanism Display Description H Data Hold MAX Max reading MIN Min reading Pk Peak reading Low battery V Volts Voltage A Amperes Current HZ Frequency AP Auto Power OFF Minus sign Negative reading display 0 to 9999 Measurement display digits ...

Страница 5: ...will display the current A and frequency Hz readings Note For measurements lower than 3A the meter s frequency display will indicate 0 OL is displayed when the measurement exceeds the specified maximum limit AC True RMS Voltage Measurements WARNING Maximum input is 600Vac rms Do not attempt to take any voltage measurement that exceeds this limit Exceeding the limit could cause electrical shock and...

Страница 6: ... display the TRMS value Automatic Power OFF In order to conserve battery life the meter will automatically turn off after approximately 15 minutes To turn the meter on again turn the function switch to the OFF position and then to the desired function position To defeat the Auto Power OFF feature press and hold the HOLD button while turning the meter on Specifications AC Current 50 60Hz Auto Range...

Страница 7: ...ation OL is displayed Measurement rate 2 readings per second nominal Peak Hold Captures peaks 39µS 50Hz or 33µS 60Hz Operating Temperature 14 F to 185 F 10 C to 85 C Storage Temperature 4 F to 185 F 20 C to 85 C Operating Humidity 15 to 85 Storage Humidity 15 to 85 Operating Altitude 7000ft 2000m max Battery Two 2 1 5V AA batteries Power consumption 10mA approx Auto power OFF After approx 15 minut...

Страница 8: ...ives or solvents If the meter is not to be used for 60 days or more remove the batteries and store separately Battery Replacement When the low battery symbol appears on the LCD replace the two 1 5V AA batteries 1 Remove the center Phillips head screw that secures the rear battery door see diagram 2 Open the battery compartment 3 Replace the 1 5V AA batteries 4 Secure the battery compartment 99 Was...

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