Adash America A4950 Stroboscopes

A4950 handheld LED stroboscope for a wide range of machinery maintenance applications. Stroboscope ostensibly stops rotating or generally periodic (reciprocating) motion of a machine to determine speed of rotation and to perform synchronized measurements without having to use reflective markers on the shaft.

High power LEDs with lens and reflector system
Flashing frequency range from 0,5 Hz to 500 Hz (30 RPM to 30 000 RPM)
Flash frequency divider and multiplier
Control of the flash duration
Phase shift or shift by blades function
Flashing controlled by internal or external triggering
Powering for external laser tacho-probe
Trigger output for external instrument (balancer)
Torch mode
Powered by 2 AA batteries
Heavy duty case
Tripod mounting plate

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Description

Adash America A4950 - Handheld LED Stroboscope

High power LEDs with lens and reflector system
Flashing frequency range from 0,5 Hz to 500 Hz (30 RPM to 30 000 RPM)
Flash frequency divider and multiplier
Control of the flash duration
Phase shift or shift by blades function
Flashing controlled by internal or external triggering

Stroboscope enables to ostensibly stop rotating or generally periodic (reciprocating) motion of a machine. It allows also to find out the speed of rotation or to perform synchronized measurements without having to use reflective markers on the shaft.

The A4950 stroboscope uses three ultra-bright LEDs with optical system as a source of flashes. The device is equipped with a colour graphic display and 3 operational buttons. Operation is very easy and intuitive. Two standard or rechargeable AA batteries are used for powering. The A4950 stroboscope can be used also as a tachometer by connecting an external speed probe.

Basic Information

ground (GND)
trigger signal output
not used
tacho probe powering +5 V / 50 mA
trigger signal input

Switch ON/OF

Arrow Buttons

Select the right or left item from the menu at the bottom
Move between items (up/down) in menu

Enter button

Switches the instrument on/off
Confirmes the selection
Selects the middle item from the menu at the bottom

Manuals/Guides

Manufacturer Specs

Technical Specifications
Light source	3 XR-E ultra-bright LED
Flash frequency range	0,5 Hz – 500 Hz (30 RPM – 30 000 RPM)
Flash frequency resolution	0,01 Hz or 0,1 RPM
Flash duration	0,5° - 10° of speed frequency
Flash intensity	approx. 3000 lx (25 Hz/300 mm)
Phase shift	-180° to +180°
Trigger output pulse	3,3 V
External trigger input pulse	1 V - 5 V positive/negative edge
Powering for external tacho	5 V / 50 mA
Display	colour graphic OLED display, 128 x 128 pixels
Operating time	20 hurs (lithium batteries)
Operating temperature	from -5 °C to 55 °C
Dimensions	150 x 60 x 35 mm
Weight	340 g (including batteries)
Tripod mounting	¼"
Accessories	laser tacho-probe (optional), trigger cable for VA3, VA4, SAB (optional)