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The Clamp-on Meter Model 500 is a general-purpose professional clamp-on. A strong mechanical case design, quality materials, full ranges and compliance to international safety and quality standards ensure a professional and reliable tool. The Model 500 is auto-ranging, and provides the user with AC Volts, AC Amperes, resistance, and continuity. The large and complete 4000-count LCD features comprehensive user interface symbols such as a low battery indicator. It is equipped with a Data Hold function, which freezes the measurement. The Model 500 is compact for comfortable one-handed operation, and the hooked jaw design is easy to maneuver in crowded wiring and breaker panels. The jaw opening for the Model 500 is 1.1” (28mm).
MODELS | 500 | 502 TRMS | 503 |
AC Current (Auto-Ranging) | 0.05 to 400A | 0.05 to 400Arms | 0.05 to 400A |
Resolution | 0.1A | 0.01A and 0.1A | 0.01A and 0.1A |
Accuracy 50 to 60Hz 60 to 500Hz | ±2% of Reading ± 5cts ±2.8% of Reading ± 5cts | ±1.9% of Reading ± 5cts ±2.5% of Reading ± 5cts | ±1.5% of Reading ± 10cts ±2.5% of Reading ± 10cts |
AC Voltage (Auto-Ranging) | 0.5 to 600V | 0.5 to 600Vrms | 0.5 to 600V |
Resolution | 0.1V and 1V | 0.1V and 1V | 0.1V and 1V |
Accuracy 50 to 60Hz
60 to 500Hz | ±1.0% of Reading ± 5cts ±1.5% of Reading ± 5cts | ±1.5% of Reading ± 5cts ±1.5% of Reading ± 5cts | ±0.8% of Reading ± 5cts ±1.5% of Reading ± 5cts |
Input Impedance | 1MΩ | 1MΩ | 10MΩ |
DC Current (Auto-Ranging) | – | – | 0.10 to 400A |
Resolution | – | – | 0.01A and 0.1A |
Accuracy | – | – | ±2.5% of Reading ± 10cts |
DC Voltage (Auto-Ranging) | – | 0.2 to 600V | 0.2 to 600V |
Resolution | – | 0.1V and 1V | 0.1V and 1V |
Accuracy | – | ±1% of Reading ± 2cts | ±1% of Reading ± 2cts |
Input Impedance | – | 1MΩ | 10MΩ |
Resistance | 0.3 to 400Ω | 0.2 to 400Ω | 0.2 to 400Ω |
Accuracy | ±1.9% of Reading ± 3cts | ±1% of Reading ± 2cts | ±1% of Reading ± 2cts |
Max Test Voltage | -1.6Vdc | 1.5VDC | 1.5VDC |
Continuity | <35Ω | <40Ω | <40Ω |
Max Test Voltage | 1.5VDC | 1.5VDC | 1.5VDC |
Frequency (Auto-Ranging) | |||
CURRENT INPUT Range 20Hz to 4kHz >4kHz to 10kHz |
– – |
1Hz Resolution 10Hz Resolution |
– – |
Accuracy | – | ±0.1% of Reading ± 1ct | – |
Min Input Signal | – | 2Arms | – |
Input Impedance | – | 1MΩ | – |
Overload Protection | – | 600Arms | – |
VOLTAGE INPUT Range 10Hz to 4kHz >4kHz to 40kHz >40kHz to 400kHz |
– |
1Hz Resolution |
– |
– | 10Hz Resolution | – | |
– | 100Hz Resolution | – | |
Accuracy | – | ±0.1% of Reading ± 1ct | – |
Min Input Signal 4kHz 40kHz 400kHz | – | 5Vrms | – |
– | 5Vrms | – | |
– | 5Vrms | – | |
Input Impedance | – | 1MΩ | – |
Overload Protection | – | 600Vrms | – |
Power Source | Two 1.5V AAA batteries (included) | ||
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Electrical testing of distorted currents found on uninterruptible power supplies (UPS), speed controls, static power blocks, chopped power supplies, controllers and motors