Site Information

 Loading... Please wait...
  • Toll free: (866) 326-5412
  • My Account
  • Gift Certificates
  • Photograph of Ohaus Cent-O-Gram® Overhead Mechanical Balance.
  • Close-up photograph of beam mechanism of Ohaus Cent-O-Gram® Overhead Mechanical Balance.

Ohaus Cent-O-Gram® Overhead Mechanical Balance

Item #: H-311-000

Normal Availability: 2-3 business days

Product Description

The Ohaus Model 311-000 Cent-O-Gram® Overhead Mechanical Balance has four beams to easily determine mass. This balance offers the accuracy and convenience of an integrated weigh-below balance while allowing students to visualize mass measurement principles. The hanging pan system offers ten times the readability of Ohaus triple beam balances. For a similar model with greater readability see the Dial-O-Gram® top-loading balance (item # H-310-000).

Features include a self-aligning beam design, special floating agate bearings, a counter-balancing knob to provide quick zeroing, and magnetic damping for quicker results. This durable balance is made with aluminum pressure casting for the base and beam assembly and has a removable stainless steel pan. Dimensions: 360 mm (14.2 in) L x 166 mm (6.5 in) D x 249 mm (9.8 in) H. Weight: 1.4 kg (3.1 lb).

Maximum capacity: 311 g. Readability: 0.01 g.  Pan diameter: 89 mm (3.5 in). Pan height: 13 mm (0.5 in).  Beams: 4.  Test weight: 300 g, OIML F2 or ASTM CL 4.

Literature available: Ohaus overhead mechanical balance summary sheet.


WARNING: OHAUS products can expose you to chemicals including the chemicals listed in this Table, which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to

These and other Proposition 65 chemicals may be present only in residual amounts, or contained internally in OHAUS equipment, or encapsulated in another material where exposure is unlikely or negligible. This warning is being provided out of an abundance of caution.

Other Details

Manufactured in: Poland

Product Reviews

Write Review

This product hasn't received any reviews yet. Be the first to review this product!

Find Similar Products by Category