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A portable load tester is a device that verifies battery strength through a load test in just 10 seconds. Results are fast and show durability-based voltage, which means users can see how much longer the battery can be expected to work. It helps sort good batteries from bad ones, preventing those that seem recharged from repeated failures. The tester is lightweight and compact, making it easy to store or carry, and is sufficiently rugged to withstand rough environments. It is accurate for 6- and 12-volt batteries, and hysteresis on the gauge makes it easy to read under all light conditions.
Specifically, there are three portable load testers:
The small portable testers. These portable testers work without batteries or an AC power supply; they are small and easy to carry around, with Pinpoint Load Location ranging from 3.0-48.0 CFM.
The high voltage portable testers. High-voltage portable equipment can be classified into several types: The software-controlled high-voltage test equipment, which can supply a voltage level up to several hundred kilovolts in a small and lightweight package during a basic check.
Mechanical portable load testers. Mechanical load testers comprise a series of insulated aluminum extrusions, which makes testing very easy and reliable by engaging the load in one motion.
A Portable Load Bank can apply an electrical load to a power source, including batteries, generators, or UPS systems. This helps ensure the power equipment can handle the expected demand without problems. Large loads can overheat or damage equipment that isn't used frequently, such as backup batteries or generators sitting idle during normal operations. A load bank safely adds a load, bringing the equipment up to the proper operating temperature and showing it can handle emergencies without issues.
Energy and power industry. The electrical utilities use load banks to help prepare large power sources like turbines, generators, and systems for use in emergencies. This ensures everything works well when more power is needed.
Pharmaceutical industry. In the pharmaceutical plants, they rely on load banks to keep backup power sources like UPS and generators ready to go during power outages to keep their products safe and the equipment running.
Construction. Temporary power sources on construction sites, like generators and batteries, are tested with load banks to ensure they can handle the heavy demands of building projects.
Military. The military uses load banks to make sure their portable power systems work well in emergencies and can handle anything from small to large power needs.
Manufacturing. In manufacturing plants, load banks help test and maintain backup power systems to prevent equipment damage from power fluctuations.
Data centers. Load banks are used on data centers to check that backup power sources can handle extreme heat levels during heavy use to avoid system failures.
Telecommunication. Telecom facilities rely on load banks to ensure their backup batteries and generators are ready to keep phone networks and internet services running without interruption.
Aviation. Airports use load banks to regularly test important backup power systems and reduce the risk of power outages disrupting flights and passenger safety.
Commercial. Commercial buildings like office towers and retail centers use load banks to prevent power issues from damaging equipment and to always have reliable backup power available.
Oil and Gas. In remote oil rigs and gas wells, load banks help ensure vital backup power systems can handle anything from light to heavy demands.
Emergency services. Hospitals, fire, and ambulance stations depend on load banks to regularly test their backup power systems and avoid problems during important emergency care.
Shipping and Maritime. On ships at sea, load banks help ensure generators and other power sources are always ready to keep lights, engines, and ship systems running smoothly, even during heavy storms.
Maximum load. The portable load test set provides great flexibility, with 60 tons of wire rope hoist load with 120% overload protection.
Easy operation. The electronic load cells are integrated into the portable frame.
Computer interface. The USB computer interface provides direct PC connection, and the free PC software allows for easy configuration and data download.
Compact design. The portable load cell is compact and lightweight, designed for practical and efficient use in dynamic inspection and verification tasks.
Using a portable load cell is straightforward.
The operator should first ensure all cable connections are set correctly.
Next, a device under test is connected to the signal cable.
A load is applied using the operating controls, which are generally a key or console from the testing machine.
The readings of the load meter should be compared with the specified values, and if necessary, the corrective actions should be taken based on the readings.
The final step is to disconnect the circuit. The operator should turn the key switch off to discontinue load application and remove any load level fuses that needed to be replaced.
There are some important things to remember about maintenance and repair for portable load cells.
Clean the device regularly and keep it in a dry and dust-free area. The operator must arrange for cleaning after use, especially after exposure to wet conditions, to avoid build-up.
Avoid extreme temperatures. Continuous exposure to extreme temperatures can damage internal systems. The operator should keep the device in a room with moderate temperatures when not in use.
Perform regular inspections as required by certified personnel. Indoor cellular devices should be inspected for physical and internal damage by a certified electronic repair technician often.
Calibration. It is necessary to calibrate the device after a specific duration, as mentioned by the manufacturer, to maintain operational effectiveness.
Users should store devices in portable containers designed for the equipment to offer shock protection when traveling. Load cells suffer much from shocks and bumps during transportation.
Portable load test equipment is changed by testers based on the battery power it uses. For a portable battery-operated load tester, its mass should not exceed 2,350 kg, while an electrically charged load bank has a mass of about 2,000 kg. Resistive load banks have a mass of 1,000 kg, and a diesel-operated one has a mass of 2,500 kg. The battery-powered ones are easiest to handle because their battery is rechargeable in any environment.
Environmental Volume is tested using portable loads, but the load cells used should not be inspirable. This creates candidates with high volume, causing limited availability and reducing industry entries. Portable load test equipment unfinished volume can occupy about 900 liters, portable electric 1-liter, portable mechanical 500 liters, and diesel-operated volume up to 10 liters.
A1. The load bank capacity equals the maximum load that test equipment can handle safely without damage. It is often expressed in watts or kilowatts, with 1 watt equaling 1 volt times 1 amp.
A2. A load bank test creates a load, which helps manage power during peak periods when loads are heaviest. It stores charge during low usage times, helping prevent power outages.
A3. A portable load tester checks battery strength by testing how long it can supply power under heavy use. In just 10 seconds, it tells if a battery can keep working or needs to be replaced.
A4. Yes, intermittent load tests are acceptable for portable equipment intended for continued operation, such as generators. Peak-load tests help identify power surges and evaluate equipment capacity.
