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PEL Power and Energy Logger

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Chapter 4 - Quiz

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1. What is the first action to take before carrying out any cleaning operation on the PEL?
Remove the SD card. Update the firmware. Disconnect the device from any voltage source. Check the battery charge level.
2. Which of the following is a functional check rather than a visual inspection?
Checking for cracks on the casing. Performing a measurement test on a known installation. Checking that the clamp jaws are clean. Checking the integrity of the insulation on the leads.
3. What type of battery is used in PEL power and energy loggers?
Nickel-metal hydride battery. Lithium-ion battery. Lead-acid battery. Nickel-cadmium battery.
4. How many complete charge and discharge cycles may be required to recover nearly 95% of the nominal capacity after a deep discharge?
1 cycle 5 cycles 10 cycles 20 cycles
5. What is the recommended temperature range for charging the PEL battery?
From 0 °C to 40 °C. From -20 °C to +60 °C. From 10 °C to 30 °C. From 15 °C to 25 °C.
6. During a firmware update, which connection mode is recommended and why?
Wi-Fi, because it is faster. Bluetooth, because it is more secure. Ethernet, because it is more stable. USB, because the amount of data is too large for the other connections.
7. If the PEL does not start after prolonged storage, what is the first action to take?
Contact technical support immediately. Open the device to check the internal components. Replace the SD card. Fully charge the device.
8. Does the PEL contain any parts intended to be replaced by the user?
Yes, the battery. Yes, the fuse. Yes, the USB connector. No, there are no internal parts intended to be replaced by the user.
9. What is the main function of the PEL current sensors?
To measure current without interrupting the circuit. To measure the resistance of conductors. To measure voltage without interrupting the circuit. To power the PEL.
10. When installing a current sensor, the arrow should point:
Toward the source. Toward the electrical panel. Toward the load. In any direction.