Input voltage: 120V AC or 240V AC.
Standard 4.5 inch switchboard.
Front panel mount.
360° indication.
Plastic case.

Operation Principle
1) A synchroscope indicates the synchronization point (scale center) when the frequencies and the phases at a generator side and a bus line side are matched.
2) If the frequencies of both side are equal, the position at which the needle is stationary indicates the phase difference between the two.
3) When the generator side (starting side) frequency is fg and the bus line side (operating side) frequency is fb, the direction of rotation of the needle is as follows:

When fg = fb The needle is stopped.

When fg > fb The needle rotates in the FAST direction.

When fg < fb The needle rotates in the SLOW direction.

Nominal Input Voltage:
- HLS-110A SYNC (120V): 120V AC
- HLS-110A SYNC (240V): 240V AC.

Frequency Range: 50 Hz or 60Hz.
Scale: SLOW / FAST.
Indication: Moring pointer.
Angle of rotation: 360°

HLS-110A-SYNC-120VAC: HLS-110A, Analog Synchroscope, 120VAC

HLS-110A-SYNC-240VAC: HLS-110A, Analog Synchroscope, 240VAC

Input voltage: 120V AC or 240V AC.
Standard 4.5 inch switchboard.
Front panel mount.
360° indication.
Plastic case.

Operation Principle
1) A synchroscope indicates the synchronization point (scale center) when the frequencies and the phases at a generator side and a bus line side are matched.
2) If the frequencies of both side are equal, the position at which the needle is stationary indicates the phase difference between the two.
3) When the generator side (starting side) frequency is fg and the bus line side (operating side) frequency is fb, the direction of rotation of the needle is as follows:

When fg = fb The needle is stopped.

When fg > fb The needle rotates in the FAST direction.

When fg < fb The needle rotates in the SLOW direction.

Nominal Input Voltage:
- HLS-110A SYNC (120V): 120V AC
- HLS-110A SYNC (240V): 240V AC.

Frequency Range: 50 Hz or 60Hz.
Scale: SLOW / FAST.
Indication: Moring pointer.
Angle of rotation: 360°

HLS-110A-SYNC-120VAC: HLS-110A, Analog Synchroscope, 120VAC

HLS-110A-SYNC-240VAC: HLS-110A, Analog Synchroscope, 240VAC