DIAL-O-GRAM® BALANCE Model 310
and
CENT-O-GRAM® BALANCE Model 311
Instruction Manual
INTRODUCTION
This manual covers Installation and Operation for the Ohaus Dial-O-Gram® Balance Model 310 and Cent-O-Gram® Balance Model 311.
DESCRIPTION
Ohaus Dial-O-Gram® Balance Model 310 and Cent-O-Gram® Balance Model 311 are manufactured from high grade precision zinc castings for the base and precision aluminum castings for the beam. Agate bearings, hardened steel knife edges, and stainless steel pans ensure a high standard of quality for these products.
The 3-point base together with the special floating bearing principle and beam design eliminates the need to have a level adjustment. Zeroing is easily and quickly achieved by means of a counter balancing knob at the end of the beam. The balances are intended for use in education, and industry applications. They produce quick readings due to their damping mechanism. Both balances can also be used to make specific gravity measurements. Model 310 has two beams, each with a sliding poise, and a graduated dial and vernier which enables readings of 0.01 g. Capacity of the Model 310 is 310 grams. Model 311 has four beams, each with a sliding poise. Capacity of the Model 311 is 311 grams with a readability of 0.01 g.
Figure 1. Model 310. |
Figure 2. Model 311. |
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UNPACKING AND ASSEMBLY INSTRUCTIONS
The balance has been shipped with each component packed securely in a protective, expanded polystyrene container. Follow these instructions and you can assemble your balance in just a few minutes.
1.Remove the poly-container from the shipping carton and place it so that you can see the base and specific gravity stand. See Figure 3.
2.Cut the strap and lift off the upper half of the poly-container. Remove the base and specific gravity stand. Hold the base upside down. Insert the round, flat end of the stand through the slot in the base. Rotate stand into position as shown in Figure 4. Rotate it as soon as the round end clears the opening. When the base and the specific gravity stand are upright, the OHAUS on the stand must be facing down.
Figure 3. Base and Specific Gravity Stand in Container.
Figure 4. Base and Specific Gravity Stand out of Container. 3
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