Features
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.
DC VOLTAGE |
|
Range |
200mV, 2V, 20V, 200V, 1000V(GDM-451/356) 400mV, 4V, 40V, 400V, 1000V(GDM-394/396) 400mV, 4V, 40V, 400V, 600V(GDM-395) |
Best Accuracy |
±(0.05%rdg + 3 digits) for GDM-451 ±(0.5%rdg + 1 digit) for GDM-356; ±(0.8%rdg + 1 digit) for GDM-394/396 ±(0.7%rdg + 3 digits) for GDM-395 |
Input Impedance |
10 MΩ |
AC VOLTAGE |
|
Range |
2V, 20V, 200V, 750V(GDM-451/356) 4V, 40V, 400V, 750V(GDM-394/396) 4V, 40V, 400V, 600V(GDM-395) |
Best Accuracy |
±(0.5%rdg + 10 digits) for GDM-451 ±(1.0%rdg + 5 digits) for GDM-394/396 ±(0.8%rdg + 3 digits) for GDM-356; ±(2.3%rdg + 5 digits) for GDM-395 |
Input Impedance |
10 MΩ (2MΩ for GDM-451) |
DC CURRENT |
|
Range |
2mA, 20mA, 200mA, 400µA, 4mA, 40mA, 400mA, |
Best Accuracy |
±(0.5%rdg + 5 digits) for GDM-451 ±(1.0%rdg + 2 digits) for GDM-394/396; ±(0.8%rdg + 1 digit) for GDM-356 |
AC CURRENT |
|
Range |
20mA, 200mA, 400µA, 4mA, 40mA, 400mA, |
Best Accuracy |
±(0.8%rdg + 10 digits) for GDM-451 ±(1.5%rdg + 5 digits) for GDM-394/396; ±(1.0%rdg + 3 digits) for GDM-356 |
RESISTANCE |
|
Range |
200Ω ~ 200MΩ 7 ranges(GDM-451/356) 400Ω ~ 40MΩ 6 ranges(GDM-394/395/396) |
Best Accuracy |
±(0.3%rdg + 1 digit) for GDM-451 ±(1.0%rdg + 2 digits) for GDM-394/396; ±(2.0%rdg + 5 digits) for GDM-395 ±(0.8%rdg + 1 digit) for GDM-356 |
CONTINUITY BEEPER |
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Buzzer sounds if conductance less than 70Ω for GDM-451/394/395/396/356 |
|
DIODE TEST |
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Open Circuit Voltage |
GDM-451/356 : 2.8V(Approx.); GDM-394/395/396 : 1.48V(Approx.) |
CAPACITANCE |
|
Range |
2nF, 20nF, 2µF, 20µF(GDM-451); 20nF, 200nF, 2µF, 100µF(GDM-356) 40nF, 400nF, 4µF, 40µF, 100µF(GDM-394/395/396) |
Best Accuracy |
±(3.0%rdg + 5 digits) for GDM-396/394; ±(3.0%rdg + 40 digits) for GDM-451 ±(5.0%rdg + 10 digits) for GDM-395; ±(4.0%rdg + 3 digits) for GDM-356 |
FREQUENCY |
|
Range |
1Hz ~ 20kHz(GDM-451/356) 10Hz ~ 10MHz(GDM-394/396); 1Hz ~ 99.9kHz(GDM-395) |
Best Accuracy |
±(1.5%rdg + 5 digits) for GDM-451/356 ±(0.1%rdg + 3 digits) for GDM-394/396 ±(0.7%rdg + 3 digits) for GDM-395 |
TEMPERATURE |
|
Range |
-40ºC ~ 1000ºC |
Best Accuracy |
±(1.0%rdg + 30 digits) for GDM-451; ±(1.0%rdg + 7 digits) for GDM-396/356 |
SPECIAL FUNCTION |
|
Auto Ranging(GDM-396/395/394); True RMS(GDM-396); RS Display Backlight(GDM-451/396/394/356) |
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LCD DISPLAY |
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4 1/2 digits(GDM-451), 3 3/4 digits(GDM-396/395/394), 3 1/2 digits(GDM-356) |
|
POWER SOURCE |
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Single 9V Battery ( |
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DIMENSIONS & WEIGHT |
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85(W) x 177(H) x 40(D) mm, Approx. 80(W) x 165(H) x 38.3(D) mm, Approx. 56(W) x 110(H) x 11.5(D) mm, Approx.
Specification : User manual x1, Test leads, Battery Ordering Information : GDM-451 4 1/2 Digits Hand-Held DMM |