GW INSTEK GDM-400 & GDM-300

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)