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Đồng hồ vạn năng Extech EX11 (True RMS)
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Đồng hồ vạn năng Extech EX11
Hãng sản xuất : Extech
Model: EX11
Xuất xứ : Taiwan
Thông số kỹ thuật:
Specifications
| Input Protection Limits | |
| VAC | 600V DC/AC |
| V | DC or V AC 600V DC/AC, 200Vrms on 200mV range |
| mA | DC 200mA 250V fast acting fuse |
| A | DC 20A 250V fast acting fuse(30 seconds max every 15 minutes) |
| Ohms, Continuity | 250Vrms for 15sec max |
| General | |
| Diode Test | Test current of 1mA maximum, open circuit voltage 2.8V DC typical |
| Continuity Check | Audible signal will sound if the resistance is less than approximately 150 Ω |
| Input Impedance | 10M Ω |
| AC Response | True rms |
| ACV Bandwidth | 50Hz to 1kHz |
| DCA voltage drop | 200mV |
| Display | 3 1/2 digit, 2000 count LCD, 0.9” digits |
| Auto-Power Off | 15 minutes (approximately) |
| Overrange indication | “1” is displayed |
| Polarity | Automatic (no indication for positive polarity), Minus (-) sign for negative polarity. |
| Measurement Rate | 2 times per second, nominal |
| Low Battery Indication | “ ” is displayed if battery voltage drops below operating voltage |
| Battery | One 9 volt (NEDA 1604) battery |
| Fuses | mA, μA ranges; 0.2A/250V fast blow, A range; 20A/250V ceramic fast blow |
| Operating Temperature | 41°F to 104°F (5°C to 40°C) |
| Storage Temperature | -4°F to 140°F (-20°C to 60°C) |
| Operating Humidity | Max 80% up to 87°F (31°C) decreasing linearly to 50% at 104°F(40°C) |
| Storage Humidity | <80% |
| Operating Altitude | 7000ft. (2000meters) maximum. |
| Weight | 0.753lb (342g) (includes holster). |
| Size | 7.36” x 3.2” x 2.0” (187 x 81 x 50mm) (includes holster) |
| Safety | For indoor use and in accordance with the requirements for double insulation to IEC1010-1 (1995), EN61010-1 (1995) Overvoltage Category III, Pollution Degree 2. |
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