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Electronic Balance Selection Chart
Balances
Catalog No. Balance Model Capacity (g) Readability (g) Precision (g) Price/Each
Price/Each
5 Units or More
OB2179 Flinn OB2179 1000 1.0 1.0 $ 132.00 $ 125.00
AP10738 Ohaus CX2200 2200 1.0 1.0 170.92 —
AP10742 Ohaus CR2200 2200 1.0 1.0 118.27 —
OB2164 Flinn OB2164 2500 1.0 1.0 132.00 125.00
OB2180 Flinn OB2180 3000 1.0 1.0 137.00 130.00
AP10739 Ohaus CX5200 5200 1.0 1.0 203.98 —
AP10743 Ohaus CR5200 5200 1.0 1.0 162.32 —
OB2186† Ohaus NV211 210 0.1 0.1 235.44 228.00
AP10735 Ohaus CX221 220 0.1 0.1 170.92 —
AP10740 Ohaus CR221 220 0.1 0.1 115.00 —
OB2163 Flinn OB2163 250 0.1 0.1 140.00 132.63
OB2138 Flinn OB2138 300 0.1 0.1 199.00 188.90
OB1054† Ohaus SKX421 420 0.1 0.1 290.00 281.77
OB2139 Flinn OB2139 510 0.1 0.1 228.00 216.75
OB2187† Ohaus NV511 510 0.1 0.1 285.00 276.00
AP9112† Ohaus SKX621 620 0.1 0.1 395.00 383.00
AP10736 Ohaus CX621 620 0.1 0.1 175.00 —
AP10741 Ohaus CR621 620 0.1 0.1 123.00 —
OB2140 Flinn OB2140 1000 0.1 0.1 315.00 299.51
AP10737 Ohaus CX1201 1200 0.1 0.1 185.00 —
OB2189† Ohaus NV2201 2200 0.1 0.1 335.00 325.00
OB2141 Flinn OB2141 210 0.01 0.01 337.00 320.41
OB2188† Ohaus NV212 210 0.01 0.01 410.00 398.19
AP8708† Ohaus SKX222 220 0.01 0.01 520.00 503.92
OB2142 Flinn OB2142 410 0.01 0.02 460.00 439.33
OB2083† Ohaus SKX422 420 0.01 0.01 690.00 669.56
OB2182* Ohaus AX422/E 420 0.01 0.01 1095.00 1060.00
OB2184* Ohaus AX622 620 0.01 0.01 1450.00 1405.00
OB2183* Ohaus AX822/E 820 0.01 0.01 1392.12 1350.00
OB2147* Ohaus PX1602/E 1600 0.01 0.01 1015.00 —
OB2185* Ohaus AX2202/E 2200 0.01 0.01 1895.00 1840.00
OB2143 Flinn OB2143 120 0.001 0.002 485.00 461.01
OB2148* Ohaus PX163/E 160 0.001 0.001 1162.00 —
OB2149* Ohaus PX323/E 320 0.001 0.001 1315.00 —
OB2160 Flinn OB2160 100 0.0001 0.0001 1395.00 —
OB2161 Flinn OB2161 220 0.0001 0.0001 1750.00 —
OB2150* Ohaus PX84/E 82 0.0001 0.0001 1835.00 —
OB2151* Ohaus PX224/E 220 0.0001 0.0001 2450.00 —
* RS-232 and USB device ports included.
† RS-232 or USB Computer Interface is available as a special-order option.
Balance Care and Use
Balances are an essential component of any high school science lab. Flinn Scientific
carries balances that vary in precision from 1 g to 0.0001 g. Following are tips to properly
use, store and maintain balances.
• Balances should always be placed on a level and sturdy surface.
• Recalibrate balances every time they are physically moved from one location to another.
If balances always remain in the same location, calibrate them at least once a month.
• Allow 15 minutes to an hour of warm-up time before using balances.
• Ensure that balances are free from drafts, excessive shaking and electromagnetic
interference.
• It is important to zero, or tare, balances each time an object is removed as long as the
value is not required for subsequent measurements. This will help ensure that the zero
point of the balance is in conjunction with regular calibrations.
• Static can interfere with accurate weighing. Make sure the balance surface, objects and
work area are free from static.
• To maximize balance life, keep the housing and platform clean. A damp cloth and mild
detergent may be used to remove debris from under the platform.
• Store the balance in a cool and dry location.
• Unplug AC adapters and/or remove batteries when balances will not be used for
extended periods of time.
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