Precision Weighing Balances
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We have NO remaining stock on the Ohaus PA512 and Ohaus discontinued production in February 2015. The replacement model is the Ohaus Pioneer Plus PA1602 and you can purchase here. All information displayed herein is for archival and support purposes only. The information on this web page is for reference only since again we have no remaining stock on the Ohaus PA512.

Pioneer digital scales from Ohaus Corporation has several digital balances models for all types of laboratory weighing applications. Whether you need an analytical balance, milligram balance, or precision balance, there is a Ohaus Pioneer electronic balance with you in mind. The Ohaus PA512 precision scale is an affordable digital balance capable of weighing up to 510 grams in 0.01 gram increments. Although this precision balance is ideally suited for basic weighing applications, it also features percent weighing and parts counting modes.

Ohaus Corp. designed the Pioneer Balances so laboratories or education institutions could have a more affordable option when choosing which balance to buy to suit their weighing needs. Unlike some of the other Ohaus laboratory models, PA Series balances do not offer internal calibration. Calibration must be done using an external mass which can be purchased separately. Although internal calibration is a convenient feature, it drives up the prices of balances substantially.

Standard Features Include:

  • Up front Level Indicator – Pioneer has been designed with an up-front level indicator, so that users can quickly ensure the balance is level prior to use
  • Selectable Environmental Settings – Three filter modes and adjustable zero tracking adjust balance sensitivity to environmental disturbances, or application requirements
You can select from 9 different Ohaus Laboratory Balances to suit your laboratory's specific weighing requirements. You can review all of the Ohaus Pioneer digital lab balances HERE.

When the Ohaus PA512 digital scale is first installed, or is moved to another location, the electronic balance must be calibrated to ensure accurate weighing results. The Ohaus PA512 requires the purchase of a optional external 500 gram calibration weight to perform calibration. We always recommend that you purchase the calibration weight when you purchase the balance. You can learn more about calibration weights, class weights and the tolerances at

Is the Ohaus PA512 too expensive for your budget? We also offer We also offer the A&D EJ610 (610g x 0.01g) or EK610i priced substantially less than the Ohaus PA512.

Before you make your final selection be sure to the new Sartorius Practum 612-1S (610g x 0.01g) featuring a touch screen user interface for easy balance configuration.

The Ohaus PA512 uses strain gauge technology. The strain gauge can give you good weighing results for weighing static loads, but can drift much more due to temperature variations caused by excitation energy used with a load cell strain gauge weigh sensor. You'll get better performance, linearity and repeatability with an electromagnetic weigh sensor found in the A&D FX-1200i.

Ohaus PA512 Pioneer Balance

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Brand Model Capacity Readability
Ohaus PA512 Pioneer Balance 510 g 0.01 g
Add. Features
  • Carats
  • Grains
  • Milligrams
  • Ounces
  • Pennyweight
  • Grams
  • Troy Ounces
  • Newtons
  • Parts Counting
  • RS-232c
Comparable Scales

Ohaus AX622 Digital Scale - $1411.85

Sartorius Practum 612-1S precise weighing - $775.33

Sartorius Quintix 612-1S school scale - $1290.61

A&D Weighing FX-1200i precision scale - $770.00

My Weigh iM01 electronic scale - $279.99

Ohaus Scout SPX622 Digital Scale - $551.60

Other Brands EPB-602 Digital 0.01 Gram Scale - $255.88

Other Brands EPB-1002L Digital Scale - $290.88

Sartorius ENTRIS 822-1S Digital Scale - $691.38

Adam Equipment HCB602H USB scale - $420.00

My Weigh i601 My Weigh Scale - $236.50

A&D Weighing EK610i digital scale - $517.50

A&D Weighing EJ610 gram scale - $431.25

My Weigh ibalance i3100 scale - $459.95

Ohaus Pioneer Plus PA1602 Digital Scale - $792.20

Mettler Toledo JL602-GE Class II NTEP Scale - $599.00

Ohaus Pioneer PA1602C Internal Calibration - $975.80

A&D Weighing FX1200iN NTEP type approved scale - $821.10
MSRP: $1051.00
YOU PAY $722.50
Untitled Document
Ohaus Precision Toploading Balance
Ohaus Pioneer PA512 Precision Toploading Balance
Before you make your final selection be sure to see the new Sartorius ENTRIS822-1S since we have special promotional pricing on the Entris822-1S allowing you to buy it for less than the PA512. If you need greater weighing capacity be sure to review the Sartorius ENTRIS2202-1S, ENTRIS3202-1S, ENTRIS4202-1S or ENTRIS6202-1S

Ohaus Pioneer Series - Affordable Laboratory Balances
Download the User Manual to understand all the functions & features

(select the model & any of the options and then the"BUY HERE" image)

   External Mass Weights Calibration Kit Calibration Mass Calibration Weights

Optional Calibration weight and weight sets

1mg-100g 21 Piece Class 1 Weight Set with NVLAP Cert $2059.00
9 pc. Weight Set (100 g - 1 g) Class 1 with NVLAP $1095.00
200g ASTM Class 1 (± 0.50mg) with NVLAP Cert $252.00
200g ASTM Class 2 (± 1.0 mg) with NO Cert $87.00
500g Calibration Weight Class 1 with NVLAP (± 1.2 mg) $327.00
500g Calibration Weight Class 2 with NVLAP (± 2.5 mg) $202.00
500g ASTM Class 2 (± 2.5 mg) with NO Cert $109.00
Cal-Paks 200g, 20g, 2g Class 1 with NVLAP $372.00
Cal-Paks 500g, 50g, 2g Class 1 with NVLAP $487.00
The Best Balance For Basic Weighing!

The OHAUS PioneerTM milligram balance was designed for basic routine weighing in a variety of laboratory, industrial and education applications.  With the right combination of performance and features, the OHAUS Pioneer offers uncomplicated performance for all your basic weighing needs.

Standard Features Include:
  • Upfront Level Indicator – Pioneer has been designed with an up-front level indicator, so that users can quickly ensure the balance is level prior to use
  • Selectable Environmental Settings – Three filter modes and adjustable zero tracking adjust balance sensitivity to environmental disturbances, or application requirements
Upfront Level Indicator Ensures Accuracy
The Pioneer has been designed with an up-front level indicator, eliminating the need to look behind the balance during the leveling process. A quick glance at the up-front level indicator helps you ensure that the balance is level prior to each use.

Selectable Environmental Settings For Working in Practically Any Condition
To help adapt the balance to real life working conditions, Pioneer is designed with selectable environmental settings. When working in harsh environments, the balance can be adjusted to compensate for vibrations and other disturbances. Conversely, the balance can be adjusted for working in slow filling applications where sensitivity is a must.

Model Cap x Read Pan Size Linearity Your Price

Before you make your final decision be sure to see the New Sartorius Entris2202-1S, Entris3202-1S, Entris4202-1S or Entris6202-1S precision balances. The Entris is made in Germany and production will soon be moved to Sartorius' manufacturing facility in Colorado. Watch the video above and see the superior eccentric loading characteristics of the Sartorius Entris Balances. Watch as a calibration weight is placed in the center and 4 quadrants on the platform and how the Sartorius Entris measures the weight accurately. Not all digital balances perform like this and if you own a laboratory balance you should test your balance by placing a weight in the center of the platform and then in the outer 4 corners and see how accurate your weighing instrument is performing. Nobody has more experience building balances than Sartorius.
Sartorius begin building balances in 1871 and holds the Guinness Book of World Record for the most accurate balance in the world.
The A&D FX1200i is an amazing precision balance that is back with a much longer warranty than the Ohaus PA512. 5 years verses Ohaus is only 2 years. Plus the A&D offers a smaller footprint saving you valuable lab space. In addition, if you are weighing in a hostile environment that is extremely dusty or wet AND Weighing is one of the few balance manufacturers in the world that offers an IP65 rated dust and water resistent precision balance. See the A&D FX1200iWP washdown scale or A&D FZ1200iWP Internal Calibration Scale.
If you are a jeweler or pawnshop buying and selling silver and other precious metals the PA512 is NOT legal for trade and you will run into a lot of trouble with weights and measures and possibly hefty fines. Don't take chances of being in violation. Instead purchase the A&D FX1200iN legal for trade balance with 1220 grams weighing capacity that displays to 0.01 grams division and the verification scale division of 0.1 grams. The FX1200iN is a Class II NTEP Approved Balance.
Copyright © 2017 Precision Weighing Balances, All Rights Reserved. This site is owned and operated by Precision Weighing Balances and is not sponsored or affiliated with Ohaus. Ohaus® is a registered trademark of Ohaus Corporation. For warranty, parts and technical related issues please call Ohaus directly at 973-377-9000.


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