GDM-400 & GDM-300

Features :

  • GDM-452/357/350B
  • 4 1/2 Digits 19999 counts (GDM-452), 3 1/2 Digits 1999 counts (GDM-357/350B)
  • Manual Ranging, Continuity Beeper/Diode Test, Data Hold
  • hFE Test (GDM-350B)
  • Temperature Measurement (GDM-357/350B)
  • Capacitance (GDM-452/357)
  • Frequency Measurement (GDM-452)
  • *GDM-461/397/360/398*
  • 22000 Counts Auto/Manual Ranging (GDM-461)
  • 4000 Counts Auto/Manual Ranging (GDM-397/398)
  • 6000 Counts Auto/Manual Ranging (GDM-360)

Description

The GDM-300/400 Series Hand Held DMM are a compact, high precision, battery operated multimeter series designed to meet most of the daily needs for design engineers as well as service engineers. The GDM-300/400 series design is driven by mobile-oriented features, such as automatic power down to preserve battery life, a large backlight display for crisp viewing, a rotary selector switch and clear-cut push buttons to ease operation. The basic functions match the depth of bench-top multimeters: fuse-protected current input, true RMS for accurate AC measurements, Auto ranging, Duty cycle, and Relative mode. These compact, reliable, and economical devices are ideal for any engineer.

SELECTION GUIDE   NEW   NEW NEW NEW  
MODEL GDM-461 GDM-452 GDM-397 GDM-360 GDM-398 GDM-357 GDM-350B
Max. Display 22000 19999 4000 6000 4000 1999 1999
Auto Ranging      
Analog Bar      
True RMS          
Display Backlight        
Fused 10A Range  
Auto Power off    
DC Voltage 1000V 600V 1000V 1000V 1000V 600V 250V
AC Voltage 750V 600V 750V 750V 750V 600V 250V
DC Current 10A 10A 10A 10A 10A 10A 10A
AC Current 10A 10A 10A 10A 10A 10A  
Resistance 220MΩ 20MΩ 40MΩ 60MΩ 40MΩ 20MΩ 20MΩ
Capacitance 220mF 20µF 4000µF 4000µF 4000µF 200µF  
Frequency 220MHz 20kHz 10MHz 10MHz 10MHz    
Diode
Continuity
Temperature        
Duty Cycle(%)      
Transistor (hFE)          
EF Function            
REL      
Data Hold
Peak Hold            
MAX MIN        
RS232C        

Specifications

The specifications apply when the GDM-400 / GDM-300 is powered on for at least 30 minutes under +20°C~+30°C.

 

SPECIFICATIONS
DC VOLTAGE
Range 220mV, 2.2V, 22V, 220V, 1000V(GDM-461); 200mV, 2V, 20V, 200V, 600V(GDM-452)

40mV, 400mV, 4V, 40V, 400V, 1000V(GDM-397);

60mV, 600mV, 6V, 60V, 600V, 1000V(GDM-360)

400mV, 4V, 40V, 400V, 1000V(GDM-398)

200mV, 2V, 20V, 200V, 600V(GDM-357)

200mV, 2000mV, 20V, 200V, 250V(GDM-350B)

Best Accuracy ±(0.1%rdg + 2 digits) for GDM-461;

±(0.05%rdg + 3 digits) for GDM-452

±(0.5%rdg + 1 digit) for GDM-397/360/398/357;

±(0.5%rdg + 2 digits) for GDM-350B

Input Impedance 10 MΩ (3000MΩ for mV range of GDM-461/397/360/398)
AC VOLTAGE
Range 220mV, 2.2V, 22V, 220V, 750V(GDM-461); 200mV, 2V, 20V, 200V, 600V(GDM-452)

40mV, 400mV, 4V, 40V, 400V, 750V(GDM-397); 400mV, 4V, 40V, 400V, 750V(GDM-398)

60mV, 600mV, 6V, 60V, 600V, 750V(GDM-360); 2V, 20V, 200V, 600V(GDM-357)

200V, 250V(GDM-350B)

Best Accuracy ±(0.8%rdg + 10 digits) for GDM-461; ±(0.5%rdg + 10 digits) for GDM-452

±(1.0%rdg + 3 digits) for GDM-397/360/398; ±(0.8%rdg + 3 digits) for GDM-357

±(1.2%rdg + 3 digits) for GDM-350B

Input Impedance 10 MΩ (3000MΩ for mV range of GDM-461/397/360/398; 4.5MΩ for GDM-350B)
DC CURRENT
Range 220µA, 2200µA, 22mA, 220mA, 10A(GDM-461); 2mA, 20mA, 200mA, 10A(GDM-452)

400µA, 4000µA, 40mA, 400mA, 4A, 10A(GDM-397/398)

600μA, 6000μA, 60mA, 600mA, 6A, 10A(GDM-360)

2mA, 20mA, 200mA, 10A(GDM-357); 2000µA, 20mA, 200mA, 10A(GDM-350B)

Best Accuracy ±(0.5%rdg + 10 digits) for GDM-461; ±(0.5%rdg + 5 digits) for GDM-452

±(1.0%rdg + 2 digits) for GDM-397/398/350B; ±(1.0%rdg + 3 digits) for GDM-360

±(0.8%rdg + 1 digit) for GDM-357

AC CURRENT
Range 220µA, 2200µA, 22mA, 220mA, 10A(GDM-461); 2mA, 20mA, 200mA, 10A(GDM-452)

400µA, 4000µA, 40mA, 400mA, 4A, 10A(GDM-397/398)

600μA, 6000μA, 60mA, 600mA, 6A, 10A(GDM-360); 20mA, 200mA, 10A(GDM-357)

Best Accuracy ±(0.8%rdg + 10 digits) for GDM-461/452; ±(1.0%+3) for GDM-357

±(1.2%rdg + 5 digits) for GDM-397/360/398

RESISTANCE
Range 220Ω ~ 220MΩ 7 ranges(GDM-461); 200Ω ~ 20MΩ 6 ranges(GDM-452/357/350B)

400Ω ~ 40MΩ 6 ranges(GDM-397/398); 600Ω ~ 60MΩ 6 ranges(GDM-360)

Best Accuracy ±(0.5%rdg + 10 digits) for GDM-461; ±(0.3%rdg + 1 digit) for GDM-452

±(1.0%rdg + 2 digits) for GDM-397/360/398/357; ±(0.8%rdg + 5 digits) for GDM-350B

CAPACITANCE
Range 22nF, 220nF, 2.2µF, 22µF, 220µF, 2.2mF, 22mF, 220mF(GDM-461)

20nF, 200nF, 2μF, 20μF(GDM-452); 2nF, 20nF, 200nF, 2μF, 200μF(GDM-357)

40nF, 400nF, 4µF, 40µF, 400µF, 4000µF (GDM-397/360/398)

Best Accuracy ±(3.0%rdg + 5 digits) for GDM-461; ±(4.0%rdg + 20 digits) for GDM-452

±(3.0%rdg + 5 digits) for GDM-397/360/398; ±(4.0%+3) for GDM-357

FREQUENCY
Range 10Hz ~ 220MHz(GDM-461); 1Hz ~ 20kHz(GDM-452)

10Hz ~ 10MHz(GDM-397/360/398);

Best Accuracy ±(0.01%rdg + 5 digits) for GDM-461; ±(1.5%rdg + 5 digits) for GDM-452

±(0.1%rdg + 4 digits) for GDM-397/360/398

DIODE TEST
Open Circuit Voltage GDM-461/452/397/360/398/357/350B : 2.8V (Approx.)

GDM-350B : 2.3V (Approx.)

CONTINUITY BEEPER
Buzzer sounds if conductance less than 10Ω for GDM-461/397/357/360/398/350B

Buzzer sounds if conductance less than 30Ω for GDM-452

TEMPERATURE
Range -40ºC ~ 1000ºC
Best Accuracy ±(1.2%rdg + 4 digits) for GDM-397; ±(1.0%rdg + 7 digits) for GDM-357

±(1.0%rdg + 3 digits) for GDM-350B

SPECIAL FUNCTION
Auto Ranging (GDM-461/397/360); True RMS (GDM-461/360); RS-232C (GDM-461/397/360)

hFE Test (GDM-398/350B); Display Backlight (GDM-397/360/398); EF Function (GDM-398)

Analog Bar (GDM-461/397/360/398); Auto Power Off (GDM-452/397/357/360/398)

LCD DISPLAY
22000 counts (GDM-461), 4 1/2 digits (GDM-452), 6000 counts (GDM-360)

3 3/4 digits (GDM-397/398), 3 1/2 digits (GDM-357/350B)

POWER SOURCE
Single 9V Battery (6F22)
DIMENSIONS & WEIGHT
87(W) x 180(H) x 47(D) mm, Approx. 370g (GDM-461/397/360/398)

91(W) x 186(H) x 39(D) mm, Approx. 300g (GDM-452/357)

72(W) x 137(H) x 35(D) mm, Approx. 200g (GDM-350B)