Ohaus EP213 milligram balance has been discontinued and no longer in production. The replacement for the Ohaus EP213 is the new Ohaus Pro EX223HERE. The information below is for reference only for those people that already own an Ohaus EP213 milligram scale or looking to replace an milligram balance.
Ohaus Explorer EP213 milligram balance can be purchased 3 ways - the standard Explorer EP213 which has no internal calibration and is NOT Legal for Trade; the EP213N which IS Legal for Trade with no internal calibration (check the box in the option section for Legal for Trade. The prefix "N" designate Legal for Trade); the EP213CN which is the EP213 with motorized internal calibration and IS Legal for Trade (check the box in the option section for Internal Calibration. "CN" designate Internal Calibration & Legal for Trade).
Ohaus Explorer EP213 (210g x 0.001g) features an integrated draft shield enclosure. The enclosure is required due to the extreme sensitivity. Merely waving your hand over the weighing platform with result in air turbulence getting under the weighing pans and causes erratic readings.
In some applications when the balance is placed in a glove box or you are weighing objects larger than the door opening of the draftshield you can run into problems. An example might be weighing an 8-inch silicon wafer to determine a coating applied - you just can't get the wafer in the fixed draft shield. In this situation an analytical balance with the glass draftshield removed would be operated in a larger enclosure, again to minimize air turbulence.
If you foresee needing to operate the milligram balance without the glass enclosure we recommend you review the Sartorius GCA2502 milligram balance since this balance offer a removable glass draftshield. Another benefit with a removable glass draftshield is easy of cleaning the balance.
Additional the Sartorius GCA2502 milligram balance is 500g x 1mg, features an all glass draftshield design for optimal illumination while the Ohaus Explorer has 3 sides of glass.
One design issue you should be aware of with the Explorer and Voyager Series outfitted with internal calibration when the balance is used in the non-NTEP mode is the inability to disable the use of internal calibration. The Ohaus line is the only balance we know of that does not allow you to disable the internal calibration. Where this becomes an issue is most calibration A2LA Certification Calibration companies will NOT calibrate a balance unless the internal calibration can be disengaged. If your balance is going to require A2LA Certification the Sartorius GCA2502 milligram balance may be a better choice.
Ohaus Explorer Pro Balances are available in both analytical and precision configurations, in a variety of capacities. The Explorer Pro line of precision balances offers capacities ranging from 210 x 0.001 grams to 32,000 x 0.1 grams. The analytical balances line offers capacities of 62, 110 and 210 grams.
Many people call us looking for the absolute best value Precision Weighing Balances can offer in a milligram balance and the answer again and again is the A&D FXi milligrams balances. We believe the value is unmatchable in the AND Weighing FX300i since you get lightening fast weighing results, 310 grams weighing capacity with 1 milligram readability and all topped off with a 5 year limited manufacturer warranty at a low price.
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