Measurement items | ACV, DCV, ACA, DCA, 4/2wire R, Hz, temperature, frequency, continuity test, diode |
Count Number | 199999 counts (GDM-8255A), 119999 counts (GDM-8251A) |
Reading Rate | Slow | 5 1/2 digits, 10 readings/s |
Medium | 4 1/2 digits, 30 readings/s |
Fast | 3 1/2 digits, 60 readings/s |
DC voltage | range | 5 ranges: 100mV, 1V, 10V, 100V, 1000V |
Accuracy | ±(0.012% rdg + 5 digits) |
Input impedance | 10MΩ |
AC voltage (True RMS)
(AC or AC+DC True RMS) | range | 5 ranges: 100mV, 1V, 10V, 100V, 750V |
Accuracy | 20Hz~45Hz:±(1%rdg + 100digits) |
45Hz ~ 10kHz:±(0.2%rdg + 100digits) |
10kHz ~ 30kHz:±(1%rdg + 100digits) |
30kHz~100kHz:±(3%rdg + 200digits) |
Input impedance | 1.1MΩ // approx. 100pF |
DC Current | range | 4 ranges: 10mA, 100mA, 1A, 10A |
Accuracy | 10mA, 100mA:±(0.05%rdg + 15 digits) |
1A, 10A range: ±(0.2% rdg + 5 digits) |
AC current (TRUE RMS)
(AC or AC+DC TRUE RMS) | range | 4 ranges: 10mA, 100mA, 1A, 10A |
Accuracy | 10mA, 100mA range: |
20Hz ~ 50Hz :±(1.5%rdg + 100digits) |
50Hz ~ 10kHz:±(0.5%rdg + 100digits) |
10kHz ~ 20kHz:±(2%rdg + 200digits) |
1A, 10A range: 50Hz~10kHz: ±(1% rdg + 100 digits) |
Resistance measurement | range | 7 ranges: 100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ, 100MΩ |
2W Accuracy | 100Ω range: ±(0.1% rdg + 8digits) (*) |
1kΩ range: ±(0.08% rdg + 5 digits) (*) |
10kΩ to 1MΩ 3 ranges: ±(0.06% rdg + 5 digits) |
10MΩ range: ±(0.3% rdg + 5 digits) |
100MΩ range: (3% rdg + 8 digits) |
4W Accuracy | 100Ω range: ±(0.05% rdg + 8digits) (*) |
1kΩ to 1MΩ 4 ranges: ±(0.05% rdg + 5 digits) |
10MΩ range: ±(0.3% rdg + 5 digits) |
100MΩ range: ±(3% rdg + 8 digits) |
diode | Open Circuit Voltage: 2.0V, Test Current: 0.5mA |
frequency | 20Hz~300kHz: Accuracy: 0.05%+2 digits; 300kHz~1MHz: Accuracy: 0.05%+2 digits |
Continuity Test | 1 ~ 1000Ω |
Temperature measurement | 0℃ ~ 300℃: J, K, T Type |
Other features | Auto range/Manual, Math: MX + B, %, 1/X
Max, Min, dBm, dB, REL, Hold, Compare, Store, Recall |
Display | VFD, dual display |
Interface | USB, RS-232C, Digital I/O |
option | Scanner card (GDM-8255A only) |
Power Consumption | Approximately 20VA |
power supply | AC 100V ~ 240V±10%, 50/60Hz |
Operating temperature | 0℃ ~ 40℃, RH < 75% |
accessories | Power cord x 1, test lead GTL-117 x 1, calibration key GDM-01 x 1 |
Dimensions, Weight | 265(W) x 107(H) x 350(D) mm, approx. 2.6 kg |