GDM-452/357/350B
4 1/2 (19,999 digits) (GDM-452)
3 1/2 (1999 digits) (GDM-357/350B)
Manual file selection
Short circuit buzzer/diode test
Data maintenance
hFE测试(
Temperature measurement (except GDM-452)
Capacitance measurement (except GDM-350B)
Frequency measurement (GDM-452 only)
GDM-461/397/360/398
22,000 digit automatic/manual shift (GDM-461)
4000 digit automatic/manual shift (GDM-397/398)
6000 digit automatic/Manual Shift (GDM-360)
Capacitance, frequency measurement function
Short circuit buzzer/diode test
Efficient fuses up to the 10A range
Data maintenance/相对值模式
True RMS（GDM-461/360）
RS232C（GDM-461/397/360）
| Specifications | |||
| DC voltage | |||
| Gear position | 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 | |||
| Gear position | 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 | |||
| Gear position | 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 | |||
| Gear position | 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 | ±(0.8%rdg + 10 digits) for GDM-461/452; ±(1.0%+3) for GDM-357;±(1.2%rdg + 5 digits) for GDM-397/360/398 | ||
| Resistance | |||
| Gear position | 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 | |||
| Gear position | 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 | |||
| Gear position | 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.) | ||
| Continuous peaking | |||
| If the conductivity is less than 10Ω, the buzzer sounds,GDM-461/397/357/360/398/350B; If the conductance is less than 30Ω, the buzzer sounds,GDM-452 | |||
| Temperature | |||
| The scope of | -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); Disy 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 disy | |||
| 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 supply | |||
| Single 9VBattery(6F22) | |||
| 尺寸&重量 | |||
| 87 (W) x 180 x (H) 47 (D)毫米,约.370g (GDM-461/397/360/398); 91年(W) x 186 x (H) 39 (D)毫米,约.300g (GDM-452/357); 72年(W) x 137 x (H) 35 (D)毫米,约.200g (gdm - 350 b) | |||
