Extech Instruments 380224 Instruction Manual Download Page 3

           380224       Ver. 1.5    5/05

 

Front Panel Description  

  

1. LCD 

Display 

2. 

Rotary Select Switch                    

3. 

‘F’ (Farad) Capacitance input jack 

4. 

‘T’ input jack 

5. Rubber 

Holster 

6. 

COM and ‘S’ input jack 

7. 

Voltage, Resistance, ‘R’, Hz, 

and Temperature input jack 

 

 

 

 

 

Preparation for measurement 

Safety Information

 

The following information must be observed to insure maximum personal safety while 
operating this meter. 

 

1. 

Do not use the meter if the meter/test leads appear damaged or if you suspect that 
the meter is not operating properly. 

2. 

The user should never be grounded when taking measurements. Do not touch 
exposed metal pipes, outlets, fixtures, etc. which may be at ground potential. The 
user should be isolated from ground by using dry clothing, rubber soled shoes, 
rubber mats, or other approved insulating material. 

3. 

Remove power to the circuit under test before cutting, unsoldering, or breaking the 
circuit. Small amounts of current can be dangerous. 

4. 

Use caution when working above 60V DC or 30V AC rms. Such voltages pose a 
shock hazard. 

5. 

When using the test leads or probes, keep fingers behind the probe's finger guard. 

6. 

Measuring voltage which exceeds the limits of the multimeter may damage the meter 
and endanger the user. Always recognize the meter's limits as stated on the front of 
the meter. 

 

International Symbols 

 
 
 
 
 
 
 
 
 
 


 
 
 
 

 
 
 

 

 

 
 

 


 

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Summary of Contents for 380224

Page 1: ...INSTRUCTION MANUAL Model 380224 Heavy Duty Phase Indicator DMM High Accuracy Voltage Resistance Frequency Capacitance and Temperature functions Phase indication Low battery and over range indication ...

Page 2: ...st leads temp probe fuse battery wrist strap and manual Range Specifications Accuracy specified for a period of 1 year after calibration at 23 o C 5 o C Mode Measurement Range Resolution Accuracy Rdg Input Protection Comments DCV 2 20 200 600V 1mV 1 2 1 d 600V AC DC Input Z 10MΩ ACV 200 600V 100mV 2 0 4 d 600V AC DC Input Z 4 5MΩ 50 500HZ CAP 20 200 2000µF 20mF 4 0 10 d 0 1A 250V fast blow fuse Te...

Page 3: ...asurements Do not touch exposed metal pipes outlets fixtures etc which may be at ground potential The user should be isolated from ground by using dry clothing rubber soled shoes rubber mats or other approved insulating material 3 Remove power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous 4 Use caution when working above 60V ...

Page 4: ... the meter will indicate 10 This residual values 10MΩ on the 2000MΩ and 1MΩ on the 200MΩ range must be subtracted from readings taken in these ranges Diode Measurements a Set the rotary switch to the diode position b Remove power to the circuit under test external voltage across device under test will cause invalid readings c Connect the RED test lead to the V input terminal d Touch probes to the ...

Page 5: ...ear and the audible tone will sound continuously If the connection is incorrect the ER LCD icon will appear If the error icon ER is displayed remove power to the device under test reconfigure the wiring before applying power again and test for correct phase Repeat as necessary Maintenance Battery Replacement The battery symbol on the LCD alerts the user of low battery voltage Remove the test leads...

Page 6: ...ance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct i...

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