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Đồng hồ đo điện vạn năng APECH AM 904
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Đồng hồ đo điện vạn năng APECH AM 904
THÔNG SỐ KỸ THUẬT Đồng hồ đo điện vạn năng APECH AM 904:
- General Description
AM-900/901/902/904 is a digital multimeter equipped with backlight function (except AM-904) and overiload protection circuit. AM-900, AM-901 and AM-904 has LCD display of 3 ½ digits(2000 counts) while AM-902 has LCD display of 3 ¾ digits (4000 counts). The multeimeter performs AC/DC Voltage, DC Current, Resistance, Audible Continuity, Diode, Transistor detecting, etc.
AM-903 is a digital capacitance meter with 3 ½ digits(2000 counts) LCD backlight display. Made with dual slope integrating converter, AM-903 ranges from 200pF to 20 mF .
- General Characteristics
| AM-900 | AM-901 | AM-902 | AM-903 | AM-904 | |
| Display | LCD 2000 counts | LCD 4000 counts | LCD 2000 counts | ||
| Low Battery Indication | displayed | ||||
| Polarity Indication | “- ”displayed automatically | ||||
| Operation Temperature | 0˚C ~ 40˚C | ||||
| Storage Temperature | -10˚C ~ 50˚C | ||||
| Battery Type | 9V Or 6F22 x 1PC | ||||
| Fuse | 0.2A | ||||
| Dimension(HXWXD) | 147x70x35mm | 133x70x30mm | |||
| Weight | Approx .150g | Approx . 115g | |||
| Accessories | Operations Manual, Battery,Test Leads,Temperature Probe(only AM-901) | ||||
| Backlight | Push for 5 seconds | ||||
| Data Hold | “DH” displayed | ||||
| Self-recovery Protection | ü | ü | ü | ü | |
- Technical Specification
1.DC Voltage (only AM-900/901/904)
| Range | Resolution | Accuracy | ||
| AM-901 | AM-900 | AM-904 | ||
| 200 mV | 0.1 mV | ±(0.5% + 5) | ±(0.8% + 10) | |
| 2V | 1mV | |||
| 20V | 10mV | |||
| 200V | 100mV | |||
| 600V | 1V | ±(0.8% + 5) | ±(1% + 10) | |
| Range | Resolution | Accuracy |
| AM-902 | ||
| 400mV | 0.1mV | ±(0.8% + 5) |
| 4V | 1mV | |
| 40V | 10mV | |
| 400V | 100mV | |
| 600V | 1mV | ±(1% + 2) |
Input Impedance:1MΩ
Overload Protection: 250V for range 200mV, 600V for other ranges
2.AC Voltage (only AM-900/901/904)
| Range | Resolution | Accuracy | |
| AM-901 | AM-900 | ||
| 200mV | 0.1mV | ±(1.2% + 10) | |
| 2V | 1mV | ||
| Range | Resolution | Accuracy |
| AM-904 | ||
| 200V | 100mV | ±(1.5% + 10) |
| 600V | 1V |
| Range | Resolution | Accuracy |
| AM-902 | ||
| 4V | 1mV | ±(1.2% + 5) |
| 40V | 10mV | |
| 400V | 100mV | |
| 600V | 1V | ±(1.5% + 5) |
Frequency: 40HZ-400HZ
3.DC Current (only AM-900/901/904)
| Range | Resolution | Accuracy | ||
| AM-901 | AM-900 | AM-904 | ||
| 200uA | 100nA | ±(1% + 2) | ±(1.2% + 5) | |
| 2mA | 1uA | ±(3% + 2) | ||
| 20mA | 10uA | ±(1.2% + 5) | ||
| 200mA | 100uA | ±(1.6% + 2) | ±(1.5% + 5) | |
| 10A | 10mA | ±(3% + 2) | ±(3% + 10) | |
| Range | Resolution | Accuracy |
| AM-902 | ||
| 40mA | 10uA | ±(1% + 2) |
| 200mA | 100uA | ±(1.5% + 2) |
| 4A | 1mA | ±(1.8% +2) |
| 10A | 10mA | ±(3% + 2) |
Overload Protection:0.2 A self- recovery fuse
