มัลติมิเตอร์แบบดิจิตอล Digital Multimeter
รุ่น SK-6555
คุณลักษณะ
เป็นดิจิตอลมัลติมิเตอร์แบบพกพา ราคาประหยัด มีฟังก์ชั่นหลากหลาย
- All-in-one Pocket-sized Plastic Case
- Voltage, Frequency and Duty Cycle Measurement
- MAX / MIN and Diference Measurements
- Continuity by Buzzer, Diode Tests and Capacitance Measurements
- Auto Power Save : Prevents batter consumption
- Auto and Manual-Ranging, Data Hold
- Safety Design : IEC61010-1 CAT II 600V and EMC
คุณสมบัติ
| MODEL | SK-6555 | |
|---|---|---|
| Display | 4000 count LCD, 14mm high | |
| Units and Symbols | mV. V. Hz. %. Ω, kΩ, MΩ, nF, µF, DIFF, MAX, MIN, BAT, DH, OL, AUTO, AP and dicimal point | |
| Range Selection | Auto and Manual-ranging | |
| Sampling Rate | 3 times per second | |
| Polarity | Autopolarity, - symbol when minus. | |
| Overrange Indication | OL symbol appears. (excluding DC/AC 600V) | |
| Display Hold / DIFF (Zero Adjustment) |
Display Hold | Press DH / DIFF Key for less than 0.5 second |
| Difference Measurement | Press DH / DIFF Key for more than 1 second | |
| Zero Adjustment | Press DH / DIFF Key for more than 1 second same as above before measuring Capacitance. | |
| MAX / MIN Value | When measuring ~V, Ω, press MAX / MIN Key for more than 1 second | |
| Continunity Test | Buzzer sounds in case less than approx 60Ω | |
| Battery Warning | BAT symbol appears when battery voltage goes down below approx 2.4V | |
| Operating Temperature / Humidity | 0 to 40°C, less than 80%RH in non-condensing. | |
| Storage Temperature / Humidity | -20 to 60 °C, less than 80%RH in non-condensing. | |
| Power Supply | One 3V CR2032 Battery. | |
| Power Consumption | 4.5mW typically | |
| Battery Life | 70 hours continuous operation | |
| Auto power save | Power turns off automatically in 15 minutes after any switch operation | |
| Dielectric Strength | 3.7kV rms for one minute between Input Terminal and Cases | |
| Overload Protection | 900VDC or AC rms max. for 1 minute (400mV Range is 600V rms) | |
| Dimensions | 118 x 78 x 16 (H x W x D) | |
| Weight | 110g | |
| Safety level | IEC-61010-1 Overvoltage CAT, III 300V CAT.II 600 V and EMC Test passed. | |
| Accessory | Test Leads provided, Battery (Installed), Instruction Manual | |
| Optional Accessory | 940 Alligator Clips | |
| DC Voltage | ||||
|---|---|---|---|---|
| Range | Accuracy | Resolution | Input Impedance | Max Input Voltage |
| 400.0mV | ±0.5%rdg ±3dgt | 100 µ V | ≥100MΩ | 600VDC |
| 4.000V | 1mV | 11MΩ | ||
| 40.00V | 10mV | 10MΩ | ||
| 400.0V | ±1.0%rdg ±3dgt | 100mV | ||
| 600V | 1V | |||
| Overload Protection : 900V rms for 1 minute | ||||
| AC Voltage | ||||
|---|---|---|---|---|
| Range | Accuracy | Resolution | Input Impedance | Max Input Voltage |
| 4.000V | ±1.5%rdg ±5dgt | 1mV | 11MΩ | 600V rms |
| 40.00V | 10mV | 10MΩ | ||
| 400.0V | 100mV | |||
| 600V | 1V | |||
| OverLoad Protection : 900V rms for 1 minute | ||||
| Frequency Response : 50Hz - 400Hz | ||||
| Frequency | ||||
|---|---|---|---|---|
| Range | Accuracy | Resolution | Input Sensitivity | Max Input Voltage |
| 1.000Hz - 100.0kHz | ±0.2%rdg ±2dgt | 0.001Hz - 100Hz | 3V rms | 300V rms |
| Duty Cycle | ||||
|---|---|---|---|---|
| Range | Accuracy | Resolution | Input Sensitivity | Max Input Voltage |
| 0.0% - 99.9% | ±0.5%rdg ±5dgt | 0.1% | <10kHz : 3V rms ≥10kHz : not specified |
300V rms |
| Frequency Scope : 1Hz - 1kHz | ||||
| Resistance | ||||
|---|---|---|---|---|
| Range | Accuracy | Resolution | Test Current | Open Circuit Voltage |
| 400.0Ω | ±1.5%rdg ±4dgt | 0.1Ω | ≤0.2mA | 0.44V |
| 4.000kΩ | ±1.0%rdg ±3dgt | 1Ω | ≤0.5µ A | |
| 40.00kΩ | 10Ω | ≤5µ A | ||
| 400.0kΩ | 100Ω | ≤0.5µ A | ||
| 4.000MΩ | ±3.0%rdg ±3dgt | 1kΩ | ≤050nA | |
| 40.00MΩ | ±7.0%rdg ±3dgt | 10kΩ | ||
| Overload Protection : 300V rms | ||||
| Continuity Tests | ||||
|---|---|---|---|---|
| Range | Buzzer Sound | Resolution Time | Open Circuit Voltage | Overload Protection |
| 400.0Ω | less than 60Ω | 1m sec | 0.44V | 300V rms |
| Diode Tests | ||||
|---|---|---|---|---|
| Range | Accuracy | Test Current | Open Circuit Voltage | Overload Protection |
| 1.000V | ±5.0%rdg ±3dgt | ≤0.7mA | ≤1.7V | 300V rms |
| Capacitance | ||||
|---|---|---|---|---|
| Range | Resolution | Accuracy | Test Voltage | |
| 50.00nF | 10pF | ±5.0%rdg ±10dgt | ≤1.7V | |
| 500.0nF | 100pF | |||
| 5.000µF | 1nF | |||
| 50.00µF | 10nF | |||
| 50.00µF | 10nF | |||
| 100.0µF | 100nF | |||
| Overload Protection : 300V rms | ||||
