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VWR OS-500 Shaker

Our Price: $1,365.00

Condition: Fully Recertified and Tested to Perform at Manufacturer Specifications
Warranty: 180-Day Full Parts and Labor (Click for Info)
Typically Ships Within: 1 to 3 Business Days
Included Documentation: NIST Calibration and Preventative Maintenance Report

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Quantity in Stock:

Product Code: VWR-OS500

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Description

Recertification Protocol

VWR OS-500 Shaker

The VWR OS-500 Shaker is ideal for shaking flasks, vials, beakers, Petri dishes, and other sample containers. Variable speed range from 25 to 500 RPM on a 19mm orbit. Maximum load up to 16 kg. Timer up to 120 minutes.

All of our equipment will be fully tested to perform at factory specifications before being shipped.

Included with the VWR OS-500 Shaker:

Includes:
> Power Cord
> Full 180 Day Parts and Labor Warranty

VWR OS-500 Shaker Specifications

Speed Range	25 to 500 RPM
Timer	1 to 120 minutes
Orbit	19mm (0.75 in)
Maximum Load	16 kg (35.2 lbs)
Dimensions (W x D x H)	10 x 14 x 7 in (27.3 x 38 x 18.4 cm)
Electrical Requirements	120V, 50/60Hz

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VWR OS500 Shaker - Marshall Scientific

Shaker Inspection and Recertification Checklist

Validate that the power supply and PCB deliver stable, correct voltage outputs across all necessary connections, ensuring reliable operation
Thoroughly inspect the display for any dim, flickering, or dead pixels; replace affected elements to maintain full readability and operational clarity
Test the full range of button functionality, confirming responsive, accurate input recognition across all settings
Conduct a detailed inspection of bearings and bearing housing, identifying any worn or damaged bearings, and replace as needed to prevent operational disruption
Examine the drive belt for signs of cracking, fraying, or material breakdown; replace as required to ensure sustained performance
Measure and adjust motor drive belt tension to optimal specifications, securing reliable and efficient power transmission
Verify accuracy of the onboard timer, confirming proper functionality and replacing if it deviates from expected performance
Calibrate shaker rotation speed with a NIST-traceable tachometer, validating precision within specified operational limits
Run the shaker continuously for an 8-12 hour testing period, closely observing the shaking platform for smooth, consistent motion, while monitoring for any error indicators such as knocking, skipping, or unusual vibrations
Perform a comprehensive cosmetic inspection to confirm the device’s exterior meets aesthetic and quality standards, free from visible damage or wear

Technician Inspection and Recertification Checklist: Shakers

The Following Checklist Is to Be Performed on All Incoming and Outgoing Pieces of Equipment

Task	Completed?	Remarks?
Validate stable, correct voltage outputs from power supply and PCB	Completed
Inspect display for dim, flickering, or dead pixels; replace as needed	Completed
Test button functionality for responsiveness and accuracy across all settings	Completed
Inspect bearings and housing for wear; replace as needed to prevent disruption	Completed
Examine drive belt for cracking, fraying, or material breakdown; replace as required	Completed
Measure and adjust motor drive belt tension to optimal specifications	Completed
Verify onboard timer accuracy; replace if it deviates from expected performance	Completed
Calibrate shaker rotation speed using a NIST-traceable tachometer	Completed
Run 8-12 hour continuous test; observe platform for smooth, consistent motion	Completed
Perform comprehensive cosmetic inspection for quality standards compliance	Completed