The Pioneer PA313 has been discontinued and replaced by the new and improved Pioneer Plus PA323 and PA323C.
Ohaus is a fine scale. We love 'em!
But... we want to make you aware of one thing about Ohaus.
Unless it's defective, you simply cannot return an Ohaus product, no matter what.
You won't find this information on our competitor's sites, but Old Will thinks you should be aware of it when you buy an Ohaus scale.
- You can read the Ohaus Return Policy here -

Ohaus Pioneer PA313 Precision Balance

One of the best milligram balances for basic weighing.
310 gram capacity x 0.001 gram resolution

The Ohaus Pioneer 313
"In A Nutshell"
Power AC adapter (included)
Display LCD
Tare Feature Yes
Calibration External: 200g & 300g
Interface RS232
Weighing Hook Yes
Platform Size 4.72" diameter
Scale Size 12.6" x 11.3" x 7.7"
Weighing Units 18

Weighing Modes

Mode: Capacity: Resolution:
Baht 20.3947 bht 0.0001 bht
Carat 1550.000 ct 0.005 ct
Grain 4784.04 GN 0.02 GN
Gram 310.000 g 0.001 g
Kilogram 0.310000 kg 0.000001 kg
Mesghal 67.2695 msg 0.0005 msg
Milligram 310000 mg 1 mg
Momme 82.6665 mom 0.0005 mom
Newton 3.04006 N 0.00001 N
Ounce 10.93495 oz 0.00005 oz
Troy Ounce 9.96675 ozt 0.00005 ozt
Pennyweight 199.335 dwt 0.001 dwt
Pound 0.683435 lb 0.000005 lb
Tael HK 8.28235 HKt 0.00005 HKt
Tael S 8.20120 SGt 0.00005 SGt
Tael TW 8.26665 TWt 0.00005 TWt
Tical 18.9842 tical 0.0001 tical
Tola 26.5773 tola 0.0001 tola

Product Details

Fast & Accurate With Magnetic Force RestorationThis precision balance is equipped with magnetic force restoration, or electro-magnetic force, to provide super fast, accurate and repeatable measurements.

Weighing HookSometimes the thing ya need to weigh just won't fit on the scale's platform. Now that's a problem for most scales, but not the Pioneer 313. This scientific scale has a weighing hook built right into the bottom. This hook works by pulling on the weighing platform when an item is hanging from it, just like if ya were to put an item on top of the platform. All ya have to do is uncover the hook, and hang your item from it to weigh.

Does This Thing Count?You bet it does! All ya need to do is weigh a sample amount of pieces, so the Pioneer can know how much each piece weighs, then start counting. You'll be finished in no time.

Average Piece WeightBefore ya start counting your pieces, ya need to let the PA313 know how much each piece weighs. Ohaus made this simple by averaging the weight of the pieces ya put on the scale. Just type in how many pieces ya put on the scale, and the scale will average the weights. The bigger your sample is, the more accurate the scale will be when counting your pieces. The sample amount will even be stored on the scale for future use.

RS-232 Serial PortThe Pioneer PA313 has an RS232 port built right in. This is important if you're wanting to send your weight readings and other data to an external source like a computer or printer.

Percent WeighingThis feature will let ya compare the weights of your samples against a predetermined reference weight. This can be helpful in weight checking, compounding, formulating and more.

Easy CalibrationThis precision balance comes factory calibrated and ready to use. Just in case ya need to calibrate it, the Pioneer comes with easy to follow calibration instructions. You'll just need to pick up two calibration weights, (1) 200 gram and (1) 300 gram, to get the job done.
This scale has two calibration modes; Span and Linearity.
Span calibration requires 300 grams of weight (the scale's full capacity).
Linearity calibration needs two separate weights, 200 grams, then 300 grams.

Protective WindscreenWhen you're weighing with high precision scales like this one, even the tiniest breeze can interfere with weight readings. This Ohaus scale comes with a durable, glass windscreen to keep out those pesky drafts. Oh, and don't worry, this scale makes it easy to put your items on, or take them off, the platform. The top and sides slide all the way back.

Stainless Steel PlatformThis precision balance has a durable stainless steel weighing platform to make cleanup a breeze. Unlike gold or silver, stainless steel doesn't scratch easily and keeps its shine without rusting or tarnishing.

Tare FeatureThe tare button on the front of this digital lab scale can be pressed to "zero out" the weight on the scale. You can then add more weight, and the display will only show the weight of the items you're adding. This sure is useful when ya want to use an expansion scoop to weigh your things, or if ya want to get separate weights of multiple items.

Programmable Auto Printing FeatureThis lab balance will automatically print your data for you! Just tell the PA-313 to continuously send data to the printer, to send it at user selectable intervals, when the balance is stable, or to only send it when ya press the print key. That's pretty handy if ya ask me.

Liquid Level IndicatorThis very handy feature helps you quickly and easily get your scale nice and level. A level scale is important for getting the most accurate weight readings. All ya have to do is twist the feet on the bottom of the scale until the spirit bubble is centered within the level.

2 YEAR MANUFACTURER'S WARRANTY!When ya get this portable scale, ya need to go over to the Ohaus website and register it to receive a two year warranty.

Product Reviews

Product Questions

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We know you have a choice when you buy scales online. Just know that when you buy digital scales from Old Will, it's always a "Worry Free Deal".

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