Precision Weighing Balances
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Sartorius AY303 has been discontinued and no longer in production as of January 2013. The Sartorius AY line was phased-out and replaced with the new Practum 313-1S. The Practum balances are an entirely new cutting edge design offering superior weighing technology over the AY303. The Practum 313-1S is a magnetic force restoration balance offering MUCH Better weighing performance over the AY303. We have NO remaining stock on the Sartorius AY303 and the manufacturer has discontinued production. All information displayed herein is for archival and support purposes only.

Beware of anyone trying to sell you the AY303 since the manufacturer warranty has ran out and there are no parts and accessories available from Sartorius. There are plenty of other alternative models available and if you need help give us a call. We just despise seeing some people selling AY303 to people as brand new when you are buying a scale with NO WARRANTY and NO AVAILABLE parts or accessories AVAILABLE FROM SARTORIUS. Don't be hoodwinked stay away from the AY303 and always buy a current production model.

For those people looking for a low cost scale that reads in milligrams be sure to see the EPB-103 , EPB-203 or EPB-303.

Sartorius M-Prove series are ideal balances and scales for Educational, Industrial, Laboratories, Research, Postal, Special Applications and more. The Sartorius AY-303 milligram balance comes with a 300 g capacity and 0.001 g readability. Whether weighing multiple samples with totaled results, formulating a color, counting, percent weighing, specific gravity or under pan weighing, Sartorius has the answer in M-Prove. All models feature a flip-down protective cover for safe transportation and stackability, integrated cal-weights, stainless-steel pan and large back-lit display.

Sartorius owned Acculab and shut down the brand in Dec of 2010. The AY303 by Sartorius is the exact same balance as the the Acculab Vicon 303 except they changed the color of the plastic from gray to white, changed the overlay keypad and changed the display slightly and, of course, raised the price.

The AY303 uses strain gauge weighing technology which allows you to buy a milligram scale for a low cost, but you do give up performance and accuracy so consider this before you buy. Strain gauge sensors drift and although the display might increment in one milligram graduations they are not accurate to a milligram. Sartorius states the linearity (also known as accuracy) as ± 0.004 grams. To get away from a strain gauge load cell we recommend the more costly electro-magnetic force weigh cell found in alternative milligram balances like the A&D FX-300i, Scientech ZSP350 or Practum 313. Before you buy anything please watch our YouTube video - Strain gauge loadcell vs electromagnetic force restoration.

Superior Engineering for Better Performance and Durability

The ultra-fast microprocessor gives enhanced weighing performance and exceptional stability. All M-Prove series sensors are robotically manufactured for measurement uniformity and greater durability, and each sensor is computer optimized for maximum performance, providing higher output and unmatched repeatability. These M-Prove milligram balances have incomparable overload protection for years of service in all weighing applications. The display on each scale is a white back-lit display for easy viewing in all ambient weighing conditions.

Unique State of the Art Features

All M-Prove series milligram scales are stackable for convenient, safe storage that saves valuable counter space. They have an integrated weight chamber, which simplifies calibration and the reversible weighing pan allows greater flexibility in weighing samples.

In all there are 13 models of scales (enhanced by two milligram units). The rugged housing is made of ABS plastic with maximum overload protection, and the protective flip-down and removable plastic cover is great for protection of the scale in shipping and stackable storage. The balance comes with integrated external calibration weights on models with capacity of 710 grams and below. Applications include: Counting, Percent Weighing, Totaling, Display Hold, Specific Gravity. The 14 Mass Unit Conversion units of measure include grams, ounces, pounds, pounds:ounce, pennyweight, troy ounces, grains, Newton, carats, Taels HK/Taiwan/Singapore/China, user defined. This M-Prove weighing balance comes with such accessories as optional RS-232 or USB interface kit (field installable),and an AC adapter (or optional 9 volt battery operation excluding milligram models). The external "one button" calibration has 3 weight options. The scale also has lock-down capability, with glass ring, leveling bubble and adjustable feet included on all milligram models.

Sartorius AY-303 Milligram Scale

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Brand Model Capacity Readability
Sartorius AY-303 Milligram Scale 300 g 0.001 g
Modes
Add. Features
  • Carats
  • Grains
  • Pounds
  • Ounces
  • Pennyweight
  • Grams
  • Troy Ounces
  • Parts Counting
Comparable Scales

My Weigh Gempro250 diamond scale - $169.90

Ohaus AX423/E Milligram Balance - $1530.00

Other Brands EPB-303 Affordable Milligram Scale - $319.88

Sartorius Quintix 313-1S balance - $1763.75

Sartorius Practum 313-1S milligram balance - $1090.60

A&D Weighing GF-300 Digital Scale - $1197.00

Sartorius ENTRIS 423-1S chemistry balance - $1069.30

Sartorius Secura 313-1S milligram - $2099.50

Sartorius ENTRIS323-1S chemical weighing - $899.10

A&D Weighing FX-300i milligram balance - $699.99

Sartorius YADAP-USB interface - $70.00

A&D Weighing FX-200i Ammo Reloading Scale - $679.99

Scientech Digital Balance ZSP350 - $1199.00

Other Brands EPB-203 Milligram Science Scale - $299.88

Ohaus Pioneer PA323 Milligram Balance - $1003.00

A&D Weighing FX700CT Milligram Balance - $999.97

A&D Weighing FZ300iWP Internal Calibration Scale - $1434.25

A&D Weighing FX300iN NTEP approved class 2 scale - $813.75
MSRP: $570.00
YOU PAY $399.00
precision balance
ay series digital milligram balance
SARTORIUS M-PROVE SERIES AY-303 MILLIGRAM SCALE
PWB Discount Price $399.00
As of 2013, Sartorius AY303 has been discontinued by Sartorius and there is no direct replacement in the same price range under the Sartorius brand. The closest to the AY303 would be the Sartorius Practum 313-1S listing for $1300 which is too expensive for most people when you can buy the AND FX-300i or A&D FZ-300i for a lot less money. If price is a major issue and you are willing to stay with a strain gauge loadcell like the AY303 used then be sure to review the EP303. All information displayed herein is for support purposes only.
Capacity x Readability (grams) 300 g x 0.001 g
Capacity x Readability (carats) 1500 ct x 0.005 ct
Capacity x Readability (pounds) 0.66170 lb x 0.00002 lb
Capacity x Readability (ounces) 10.58825 oz x 0.00005 oz
Capacity x Readability (troy ounces) 9.65000 ozt x 0.00005 ozt
Capacity x Readability (grains) 4631.70 gn x 0.02 gn
Capacity x Readability (pennyweight) 192.9700 dwt x 0.0005 dwt
Linearity ± 0.004 g
Tare range Tare full capacity
Weigh modes 14 Mass unit conversions (g, oz, lbs, lbs:oz, dwt, ozt, grains, Newton , carats, Taels, user defined)
Application Programs Counting, Percent Weighing, Totaling, Display Hold, Specific Gravity, Mass unit conversion
Operation temperature 50°F -86°F / 10°C-30°C
Stabilization ~ 2.5 seconds
Calibration External Auto calibration user selectable - 50g, 100g, 200g (200 g calibration mass - INCLUDED)
Data Communication OPTIONAL RS-232 or USB interface available
Dimensions (WxHxD) - hinged cover 6.8" x 3.7" x 9.8"
Weighing Platform 3.8" inch (97 mm) diameter pan, stainless steel (reversible)
Draft Ring (Size) 4.75" (120 mm) diameter glass ring / height: 1" (26 mm)
Auto Off (menu select) 2, 5 & 10 minutes
Adaptation to ambient conditions By selection of 1 of 4 optimized filter levels; display update: 0.0 - 0.8 (depends on filter level selected)
Power AC Adapter ONLY
Use of battery NOT AVAILABLE
Below scale weighing Yes
Included Accessories AC Adapter, 200 gram calibration mass, User Manual
Optional Accessories RS232 Interface, USB Interface, Security Lock, Data Printer
Net Weight 3 lbs
Shipping Weight 6 lbs
Warranty 6 months limited manufacturer warranty
Place of Origin U.S.A - Arvada, CO
Sartorius M-Prove  Brochure Digital Scale Download this brochure for a complete overview
Sartorius Scale  User Manual Laboratory scale Instruction Manual for the M-Prove Series

 
 
If your budget is limited and you want an alternative to the AY-303 watch the video above that highlights the general features of the EBP203 milligram scale. We walk you step by step how the calibrate the scale. Learn how you can change the weigh mode from grams to pennyweight and how the scale will power up in the last weigh mode used. The features highlighted in this video are similar for the EPB103 and EP303 except the weighing capacity is 100 grams and 300 grams respectively. This is an affordable milligram scale ideal for the science classroom or hobbyist weighing small samples. Just like the AY303 the EPB milligram scales use a a strain gauge loadcell which allow the price to be so low compared the electromagnetic force restoration.

Sartorius AY303 Milligram Scale

( select the model & any of the options to the right and then the "BUY HERE" image )
Sartorius ScalesOptions (S&H additional for accessories)
Data Printer with statistics & time-date function $725.00
Specific Gravity Kit $139.95
YADAP-RS RS-232 kit plus cable $80.00
USB Adapter w/ 6ft. Cable $80.00
Locking Device, anti-theft $38.00
Ink Ribbon, fits YDP20-0CE printer $35.00
Paper, pkg of 5 rolls, fits YDP20-0CE $29.00
WinWedge Std Software Wedge for Windows $299.00
YWP06G Weigh Pan w/ 3.25" Diameter and 0.75" depth $25.00
   calibration weights mass set traceable weight weights

9 pc. Weight Set (100 g - 1 g.) Class 1 with NVLAP $986.00
1mg-100g 21 Piece Class 1 Weight Set with NVLAP Cert $1664.00
100g ASTM Class 1 (± 0.25 mg) with NVLAP Cert $139.00
Cal-Paks 100g, 10g, and 20mg Class 1 with NVLAP $304.00
Cal-Paks 100g, 10g, and 200mg Class 1 with NVLAP $304.00
Cal-Paks 100g, 10g, 2g Class 1 with NVLAP $319.00
200g Calibration Weight Class 1 with NVLAP (± 0.50 mg) $218.00
200g Calibration Weight Class 2 with NVLAP (± 1.0 mg) $180.00
Cal-Paks 200g, 20g, 200 mg Class 1 with NVLAP $304.00
Cal-Paks 200g, 20g, 2g Class 1 with NVLAP $335.00


Gun and ammo reloaders really need to watch the video above that one of our customers put online. See the Sartorius GD503 in action and where professional shooters all over the world are learning to forget those low cost strain gauge scales that don’t work (see this video to see the difference). Watch the reloading of bullets using the Sartorius GD503, Omega Powder Trickler and the RCBS Chargemaster. A kernel of Hogdgon H4350 powder weighs between 0.025 0.030 grains and the Sartorius GD503 increments in 0.005gn. If you are tired of all the headaches using digital scales in the past it is time for you to buy a real balance that can weigh correctly. Give us a call at 978-521-7095 and we will configure the GD503 so the balance works out of the box in grains. If you are buying the AY303 for reloading we really think you should buy the Sartorius GD503.


If you are a ammo reloader checkout this performance testing at accurateshooter.com on the GD503. If you want an idea how much faster you can increase your reloading speed be sure to review www.snipershide.com



Click on any of the images to view a larger and higher resolution image.
M-Prove Toploader
Round glass draft ring improves scales performance lessening air turbulence under platform. Available in this model and the AY-123 only.
Above are the two versions of the Sartorius M-Prove AY Series. The front scale represents models AY-123 and AY-303. Model AY-212 also has the round pan but does not come with the draft ring. All the other M-Prove AY Series balances come with the square pan as appears on the rear scale.
M-Prove Balance Sartorius M-Prove
Integrated external calibration weights for easy storage. View of the RS-232 and USB cable interface cables and input.
All of the Sartorius M-Prove AY Series scales
are stackable for ease of storage.
AY Scale
Excellent LCD backlit display with quality buttons. Shown above is the sprint bubble indicator (AY123 and AY303 only models with sprint bubble).
 
Watch video how to configure your Sartorius AY digital scale. We show you how to change the primary weigh mode to a different weigh unit other than the factory default of grams only. The user manual doesn't tell you how to change the primary weigh mode but our video does. Below in the table are the codes needed to change the primary weigh unit.
 
code Weigh Unit   code Weigh Unit
1.7.1 User Defined unit   1.7.9 Singapore taels
1.7.2 Grams   1.7.10 Taiwanese taels
1.7.3 Kilograms   1.7.11 Grains
1.7.4 Carats   1.7.12 Pennyweights
1.7.5 Pounds   1.7.13 Milligrams
1.7.6 Ounces   1.7.15 Chinese taels
1.7.7 Troy ounces   1.7.22 Pound:Ounces
1.7.8 Hong Kong tael   1.7.23 Newtons
 
Watch video how to calibrate you Sartorius AY digital scale. Calibration weights are included on the AY123, AY303, AY212, AY412, AY612, AY511, and AY711. Calibration weights ARE NOT INCLUDED with the AY1501, AY3101, AY5101, AY4000, AY6000, AY10000.
 
Keep those cordless phones, smart phones and other electronic devices that emit radio frequencies since it really can effect the performance of your digital scale.
 
Select from 13 different models to meet your specific weighing needs
Model Cap x Read (g) Pan Size Power Price
AY-123 120 x 0.001 4" diameter AC Only $332.50
AY-303 300 x 0.001 4" diameter AC Only $399.00
AY-212 210 x 0.01 4" diameter AC or 9V battery $224.00
AY-412 410 x 0.01 5.5" x 5.0" AC or 9V battery $315.00
AY-612 610 x 0.01 5.5" x 5.0" AC or 9V battery $399.00
AY-511 510 x 0.1 5.5" x 5.0" AC or 9V battery $143.50
AY-711 710 x 0.1 5.5" x 5.0" AC or 9V battery $182.00
AY-1501 1500 x 0.1 5.5" x 5.0" AC or 9V battery $210.00
AY-3101 3100 x 0.1 5.5" x 5.0" AC or 9V battery $290.50
AY-5101 5100 x 0.1 5.5" x 5.0" AC or 9V battery $343.00
AY-4000 4100 x 1 5.5" x 5.0" AC or 9V battery $150.50
AY-6000 6100 x 1 5.5" x 5.0" AC or 9V battery $182.00
AY-10000 10,100 x 1 5.5" x 5.0" AC or 9V battery $230.00

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