디지털 멀티미터 DT4251 [히오키]
· DCV:기본 정확도±0.3%, ACV: 40~1kHz의 넓은 주파수 커버가능
· 로우패스 필터(100Hz/500Hz) 고조파 CUT (인버터의 기본파 성분 측정)
· -10℃~50℃의 넓은 사용 온도 범위
· 캐피시터 및 주파수 등 같은 여러가지 측정 지원
· 안전을 위해 전류입력 단자를 제거(DT4251)
· 옵션인 클램프를 이용하여 큰전류를 측정(DT4251,DT4253)
· USB통신을 이용하여 PC에서 측정가능
Basic specifications
| DC Voltage |
600.0 mV to 1000 V, 5 ranges, Basic accuracy: ±0.5 % rdg. ±5 dgt. |
| AC Voltage 40 to 500 Hz |
6.000 V to 1000 V, 4 ranges, Frequency characteristics: 40 Hz - 1 kHz
Basic accuracy: ±0.9 % rdg. ±3 dgt. (True RMS, crest factor 3) |
| Resistance |
600.0 Ω to 60.00 MΩ, 6 ranges, Basic accuracy: ±0.7 % rdg. ±5 dgt. |
| DC Current |
Not available |
| AC Current, 40 to 500 Hz |
Not available |
| AC Current (use with the Clamp on probe) 45 to 1k Hz |
10.00 A to 1000 A, 7 ranges
Add the Clamp on probe accuracy to Basic accuracy: ±0.9 % rdg. ±3 dgt. (True RMS, crest factor 3) |
| Temperature (use with DT4910) |
Not available |
| Voltage Detection |
80 V to 600 V AC |
| C (capacitance) |
1.000 μF to 9.999 mF, 4 ranges, Basic accuracy: ±1.9 % rdg. ±5 dgt. |
| Frequency |
AC V, AC A measurement: 99.99 Hz (5 Hz or more) to 9.999 kHz, 3 ranges, 99.99 kHz (only for AC V)
Basic accuracy: ±0.1 % rdg. ±1 dgt. |
| Continuity Check |
Continuity threshold [ON]: 20 Ω or less (Indicate buzzer sound, red LED), [OFF]: 250 Ω or more
Response time: 0.5 ms or more |
| Diode test |
Open terminal voltage: 4.8 V or less, Testing current 0.5 mA or less, Threshold of forward voltage: 0.15 V to 1.5 V |
| Other functions |
Filter function, Display value hold, Auto hold, Max/Min/Ave/AC Peak value display, Relative display, Auto-power save, USB communication (option) |
| Display |
Main and Sub displays: 4-digits LCD, max. 6000 digits, bar graph |
| Display refresh rates |
5 times/s (Capacitance measurement: 0.5 to 2 times/s, depending on measured value, Frequency: 2 time/s, Temperature: 1 time/s ) |
| Power supply |
LR03 alkaline batteries ×4, Continuous use: 130 hours (back light OFF) |
| Dimensions and mass |
84 mm (3.31 in)W × 174 mm (6.85 in)H× 52 mm (2.05 in)D, 400 g (14.1 oz) (with batteries and holster) |
| Accessories |
TEST LEAD L9207-10 ×1, Holster ×1, Instruction Manual ×1, LR03 Alkaline Battery ×4 |
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[계측기류] 디지털 멀티미터 DT4251 [히오키] 
