General Description
A very versatile high light output (6600 lux)
mains powered Stroboscope designed for
continuous operation over a very wide
frequency range.

The Beta Stroboscope is similar to the Alpha
with several enhancements and key application
features, including very stable digital flash
frequency control, automatic range selection,
internal/external triggering, phase shift
facilities, bench or panel mounting option and
a remote hand lamp unit with tripod or bracket
mounting facility.

Technical Data
Instrument type	HELIO-ALPHA A2
Power supply	115/230VAC 50/60 Hz
Power consumption	80 W
Weight	approx. 2.3 kg (control unit) approx. 1.5 kg (hand-held lamp)
Light source	Quartz flash tube plug-in, installed in separate hand-held lamp
Internal control of the flash rate by	Twist knob and digital display
External control of the flash rate by	Oscillator, pos. impulse 5 to 30 V
Frequency range in Hz	1 - 400 Hz
Frequency range in r.p.m	60 - 24000 r.p.m.
Measured value display	digital, 5-digit 7-segment display, red character height 13 mm
Display in Hz/r.p.m.	yes / yes
Measuring range switching	automatic
Measurement duration	0.33 s (min. 1 period)
Resolution of the display	0.01 Hz/1 r.p.m.
Phase shifting	yes
Display in degrees / ms	yes / yes
Range degrees / ms -	0° - 540° / 0 - 65 ms
Resolution degrees / ms -	0.1 °/0.01 ms
External triggering	yes Trigger flank freely adjustable with switch
Light output:
Range 1	1.4 Ws
Range 2	1.1 Ws
Range 3	0.4 Ws
Range 4	0.1 Ws
Light intensity at 50 cm distance	max. 6600 Lux
Overall power	50 W
Operating temperature	0°... +40°C
Storage temperature	-20° ... +85°C
Air humidity	80% relative air humidity at 30°C

 

Key features

	Highly constant brightness
	Internal and external triggering, mains triggering
	Convenient operation
	Mains operation 115 / 230 VAC, switchable
	60 - 24000 r.p.m.
	Automatic range switching
	Automatic switching between coarse and fine adjustment
	Adjustment memory function
	Separate hand-held lamp
	Phase shifting
	Clock output for synchronisation
	Dimmer function
	Designed for permanent operation
	Serial interface (option)

Supplied with own carry case