Hasegawa Electric HST-20N High and Special High Voltage Detector

Hasegawa Electric, Japan

Made in Japan
Manufacturer: Hasegawa Electric
Model: HST-20N

HST-20N

Features

Compact, lightweight
When stowing, it is easy to carry.
Tip metal fitting that is easy to detect voltage with safety
Tip metal fitting consists of a shock-absorbing spring.
Dual Use for AC/DC
AC and DC can be detected with this one.
※When DC detecting, with grounding wire.
Positive indication
The device with flashing high luminous red LED light and intermittent distinct electronic buzzer sounds easy to perceive.
Waterproof
The sensor is enclosed tightly, preventing failure due to dirt, water and other foreign objects.

Dimension

Specification

Working voltage range	AC	3kV～25kV
	DC
Frequency		1000V ±20％
Operation starting voltage (Voltage to Ground)		AC	/ 400V ±20%
		DC
		Insulated wire
Dielectric strength		Between contact to and grounding terminal 14000V AC, 5min
Leakage current		1 mA or less at the dielectric strength test
Battery		LR44(1.5V) ×2pcs
Battery life		About 4 hr. in a continuously operating state
Operating temperature range		-10’C~ +40’C
Weight		About 610g (main body only)
Accessory		Bag for housing, Grounding wire (7m)

*Internal circuit diagram
When the tip contacts the electric DC line, the current flows according to the below chart.

This current is amplified in the circuit, lighting the lamp and making the buzzer sound, thus the detector indicates whether the subject line is charging or not.

* In the case of AC, the current flows according to the below chart.
So the device works without a lead wire for earthing.