HLA-3 Voltage Detector Tester

HASEGAWA HLA-3 is a battery-powered voltage detector tester developed to check, before use, that voltage detectors are working correctly in the field. The unit produces an AC 4000 V ± 15% test voltage; when the detector tip is brought close to or touched against the output terminal, you can see whether the detector gives its warning.

As the model with the highest output voltage in the HLA series, the HLA-3 is designed for distribution, substation and industrial maintenance teams that use medium- and high-voltage detectors. Made in Japan, it is supplied as a genuine HASEGAWA product by the official distributor in Türkiye, with a commercial invoice.

How does a voltage detector tester work?

A voltage detector that gives no warning can mean two things: the line really is dead, or the detector is faulty. The HLA-3 removes that uncertainty. Powered by two internal 9 V batteries, the unit generates a test voltage of approximately 4000 V at 55 Hz ± 10 Hz. The short-circuit current of the output circuit is limited to 0.5 mA or less, a safe level for the user during testing. A red LED lights while the test voltage is being generated; when the batteries weaken, the lamp goes out to alert the user.

A typical field routine is: test the detector on the HLA-3 before starting work, then check the line for voltage, and test the detector again when the job is finished. This records that the detector was working at the moment of measurement.

HLA-3, HLA-2G or HLA-1A?

	HLA-3	HLA-2G	HLA-1A
Output voltage	AC 4000 V ± 15%	H: AC 1200 V, L: AC 70 V	H: AC 400 V, L: AC 100 V
Output frequency	55 Hz ± 10 Hz	55 Hz ± 10%	55 Hz ± 10 Hz
Short-circuit current	0.5 mA or less	0.5 mA or less	0.5 mA or less
Battery	2 × 9 V (6LR61 or 6LF22)	2 × 9 V (6R61 or 6F22)	4 × LR03 (1.5 V)
Total operating time	Approx. 2 hours	Approx. 2 hours	Approx. 1 hour
Dimensions	100 × 200 × 70 mm	80 × 150 × 50 mm	65 × 120 × 40 mm
Weight	Approx. 1200 g (without batteries)	700 g	430 g

The right model depends on the starting voltage of the detector to be tested. Choose the HLA-1A for low-voltage detectors, the HLA-2G for higher-threshold detectors, and the HLA-3 for detectors that require a 4000 V test voltage. Send us your detector models and we will identify the compatible tester together.

Technical specifications

• Output voltage: AC 4000 V ± 15%
• Output frequency: 55 Hz ± 10 Hz
• Output lamp: red LED; goes out when the batteries are weak
• Short-circuit current: 0.5 mA or less
• Internal battery: 2 × 9 V (6LR61 or 6LF22); total operating time approx. 2 hours
• Operating temperature: 0 °C … +50 °C
• Dimensions and weight: 100 × 200 × 70 mm, approx. 1200 g (without batteries)

Limits of use and safety

The HLA-3 is a test source; it does not itself show that a line is dead and cannot replace a voltage detector. Only 6LR61 or 6LF22 type 9 V batteries may be fitted; 6F22 (zinc-carbon) batteries cannot be used. If the red LED does not light, do not rely on the test result; replace the batteries first. The unit is outside its operating range below 0 °C; in winter, keep it in a vehicle or a warm place. Hold the detector by its insulated handle during testing and wear PPE. We explain why detectors need regular testing in our article on periodic inspection.

Why buy from HASEGAWA Türkiye?

• Compatibility check between the HLA-1A, HLA-2G and HLA-3 based on the detector models you use
• A complete equipment set, combining detectors and testers in one quotation
• Project-based pricing with a commercial invoice for substation and maintenance teams