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15

16

Duty Cycle

 In current mode:

  Signal input range: µA: 

60µA rms   mA: 

6mA rms   A: 

0.6A rms 

  

(current input will increase as frequency increases)

  Max. input current: 10A rms

 In voltage mode:

  Signal input range: 

0.6V AC rms 

  

(voltage input will increase as frequency increases)

  

Input impedance: 10MΩ

  

Max. input voltage: 600V rms

 
 

 

Range

Resolution

Accuracy

1 – 99%

0.1%

± 

2.0% 

Diode Test

Resolution    

Description

0.001V    

Display shows the forward-biased 
voltage drop of the diode.

 

 

 

Overload protection: 600V rms
Open circuit voltage: ~3.2V DC
Test current: ~ 1.0mA

Capacitance Measurement

Range

Resolution

Accuracy

10nF
100nF
1µF

0.01nF
0.1nF
1nF

10µF

10nF

100µF
1mF
10mF

100nF
1µF
10µF

100mF

10µF

±(

4.0% of r5 digits)

 Max. input voltage: 600V rms

 
 

 

Frequency (AC voltage) 

Range

Resolution

Accuracy

99.99Hz

0.01Hz

±(

1.5% of r5 digits)

999.9Hz

>10kHz

0.1Hz

0.01kHz

Reference only

 Signal input range: 

0.2V AC rms 

   

(voltage input will increase as frequency increases)

 

Input impedance: 10MΩ

 Max. input voltage: 600V rms

 
 

 

9

.

999

k

Hz

0.001kHz

Frequency ( ) 

Hz

Range

Resolution

Accuracy

9.999Hz

0.001Hz

±(

1.5% of r5 digits)

99.99Hz
999.9Hz

0.01Hz
0.1Hz

 Signal input range:

2V

 AC rms(voltage input will increase as 

   frequency increases)
• Max. input voltage: 600V rms

9.999kHz

0.001kHz

99.99KHZ
999.9KHZ

0.01kHz
0.1KHz

9.999MHZ

0.001MHz

Frequency (AC current) 

Range

Resolution

Accuracy

99.99Hz

0.01Hz

±(

1.5% of r5 digits)

999.9Hz
>1kHz

0.1Hz
0.001kHz

Reference only

 Signal input range: µA: 

60µA rms   mA: 

6mA rms   A: 

0.6A rms   

   

(current input will increase as frequency increases)

 Max. input current: 10A rms

Summary of Contents for DDM453

Page 1: ...and we strive for 100 satisfaction we would appreciate your feedback on the product Our professional support team is always ready to answer your enquiries and provide assistance Please contact our cus...

Page 2: ...This instrument from Dawson Tools Inc will be free from defects in workmanship and material for three years from the date of original purchase This warranty does not cover defects resulting from damag...

Page 3: ...k current measurements between 600mA 10A only 9 Common Jack all measurements release the hold Hold to turn With the rotary switch in the Hz position the default mode is frequency Press the Hz button t...

Page 4: ...e Mode Temperature in Celsius Temperature in Fahrenheit Resistance Frequency Capacitance DC AC Current DC AC Voltage 6 5 1 DC Voltage 600V 1 4 5 6 7 8 9 2 3 1 10 11 12 13 6 DDM453 1 Turn rotary switch...

Page 5: ...he display 1 Turn rotary switch to mA position 2 Press FUNC to select DC or AC current 3 Connect leads in series to circuit 4 Read current measurement on the display 1 Turn rotary switch to mA positio...

Page 6: ...to switch to diode mode 3 Connect INPUT lead to anode and COM lead to cathode 4 Read measured forward biased voltage drop 7 Capacitance 60mF 6 DDM453 1 Turn rotary switch to the capacitance position 2...

Page 7: ...e is present NCV indicator flashes buzzer beeps Safety Rating CAT III 600V Operating Altitude 2000m Relative Humidity 75 max operating Operating Temperature 0 C 40 C 32 F 104 F 80 RH Storage Temperatu...

Page 8: ...ing 8 digits AC Measurement Current Range Resolution Accuracy 600 A 0 1 A 1 2 of reading 5 digits 6000 A 60mA 600mA 1 A 0 01mA 0 1mA Overload protection A mA input Fuse FF 600mA H 600V 10A input Fuse...

Page 9: ...reading 5 digits Max input voltage 600V rms Frequency AC voltage Range Resolution Accuracy 99 99Hz 0 01Hz 1 5 of reading 5 digits 999 9Hz 10kHz 0 1Hz 0 01kHz Reference only Signal input range 0 2V AC...

Page 10: ...r 3 Replace blow fuse s with new fuses of the same electrical ratings see specifications 10 REPLACING THE BATTERY To replace the 1 Turn off power to the meter 2 Remove test leads from input jacks 3 Lo...

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