Sartorius GCA2502 milligram carat scale

500 g x 0.001 g

Sartorius GCA2502 jewelry balance is a high performance carat scale well suited for jewelry showroom, jewelry repair shop or jewelry production manufacturing applications. Weigh 2500 carats with graduations to 0.005 carats or weigh in grams - 500g x 0.001g.

Availability: 1 left in stock. Discontinued

MSRP: $2,750.00

YOU PAY: $2,049.95

You save $700.05

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Compare all the features and specifications and you'll have a hard time to matching the value the Sartorius GCA2502 provides to meet your weighing needs. Can't decide what to buy? We can help you decide very fast by offering you 500 grams weighing capacity with 1 milligram readability and a high quality draftshield. Call the other guys and see what they want for 500g x 1mg and we doubt it will be anything near the Sartorius GCA2502. Plus the Sartorius GCA2502 comes with the motorized internal calibration and a 2 year manufacturer warranty.

Just press the CAL button and the internal weight calibrates your GCA2502 for consistent accuracy. If you forget to calibrate the balance don't worry the isoCal allows the balance to be preset to perform calibration automatically or prompts user to calibrate, plus it monitors adjustments through GLP-compliant printouts when purchased with a printer.

The GCA2502 offers a large triangular weighing pan with a 4.3" diameter, and a high quality 3 door draftsheild that is removable. Lots of other milligram balances on the market have a cheesy low cost draftshield but the GCA2502 is high quality and it is removable for easy cleaning.

High performance carat scale well suited for office, workshop, and production applications. Weigh 2500 carats with 0.005 carat readability or 15 other weighing modes like 500 grams with 1 milligram readability. Standard equipped with the GCA2502 is an RS-232C data interface for connecting the scale to a PC or printer, removable glass draft shield. This is a beautiful balance made in the USA and perfect for any lab and a price you can't pass up. Similar to the motto location, location, location for real estate with the name Sartorius it is synonymous with quality, Quality, QUALITY.

The GCA2502 is the ultimate milligram balances for the lapidary marketplace. Whether your weighing diamonds or chemical compounds the GCA2502 weighs from 0 to 2500 carats (0-500 grams) weighing capacity in 0.005 carats (1 milligram) intervals. Please note the draftshield is shorter in height measuring only 6.37" (from pan to top of glass door). Built-in applications programs include: mass unit conversion by toggling; tare memory; net total formulation; weighing in percent; counting (5, 10, 20, 50, 100 pcs); and animal weighing/averaging.

Sartorius GCA2502 produces steady readings using the high stability mode and the unique Sartorius weighing system even if the environmental conditions are not ideal for precision weighing. The Double Lever System, or DLS, for short based on its special force transmission design. With this patented system, Sartorius sets the technological standards ­ for the new millennium. Patented, this new "small" system is cut from a single block of a special, highly rugged aluminum alloy using high-speed 21st century milling technology. The double lever principle offers two decisive advantages: the design in the area of the pan linkage is highly resistant to mechanical stress and therefore has exceptionally high mechanical stability, and the system is about half the size of the monolithic block cell, allowing for a smaller footprint. Like the monolithic weigh cell, it is cut from a single block of aluminum and no screw fasteners are needed between functional parts. This keeps the system less sensitive to fluctuations in temperature, and with fewer parts there is less chance of failure.

Review all the specification below by scrolling down this web page and we think you'll agree this is the ultimate milligram balance at an unheard of price.

Sartorius is the choice when you need superior weighing technology and Precision Weighing Balances is your authorized distributor for the full Sartorius gem balance line at discount prices to the public.

Sartorius typically has no inventory so it is probably best that you call us prior to placing an order so we can check if there is stock. Sartorius' typical lead time is 10-14 days to build the GCA2502. If you can work with this lead times place the order on line, but if you cannot work with these lead times it is best to call us and we can offer you equivalent balances from other manufacturers which are in stock.
We do stock the A&D FZ500i (520g x 1mg) if you need a milligram balance shipped today.

Capacity x Readability (carats)

0 - 2500 x 0.005 ct

Capacity(g) x Readability (mg)

0 - 500 g x 1 mg

Reproducibility (std dev)
carats (ct)
milligrams (mg)

± 0.01 ct
± 2 mg

carats (ct)
milligrams (mg)

± 0.01 ct
± 2 mg

Response Time (average)

2 seconds

Tare Range FULL to Capacity
Selectable Weight Units g, kg, ct, lb, oz, ozt, tlh, tls, tlt, Gn, dwt, mg, /lb, tlc, mom, K, tol, bat, and MS.
Selectable Application Programs Mass unit conversion by toggling, tare memory, net total, weighing in percent, counting, averaging
Display Update

0.1 - 0.4 seconds depended upon filter level selected


LCD with backlit

Allowable Ambient Operating Temperature 5° C to 40 ° C (41° F to 104° F)
85% RH or less
Sensitivity Drift
(10° - 30°C/50°F-86°F)

± 1 ppm / °C

Motorized Internal Calibration

isoCAL - Motorized Internal Calibration

External Calibration

200g Optional

Pan Size

ø110 mm / 4.3 in
(inner diameter)*

Draft Shield Chamber Height
(from pan to top of glass door)

162 mm / 6.37 in

Dimensions (entire balance)
W x D x H

213 x 342 x 270 mm
8.4 x 13.5 x 10.6 in

Built-in RS-232 Interface


Weighing Below A port for a hanger for weighing below the balance is available.  You can attach a sample using a suspension wire, for example.  Common applications for weighing below the balance includes density determination.  Sartorius recommends to complete the balance with the density kit YDK01 and modify the balance with a higher weighing chamber for more space in handling the sample.
AC Power Source

AC Adapter 120 VAC

Power Consumption

Approx. 16VA (supplied by AC adapter)

Standard Equipment

120V AC Adapter, RS-232 interface, Stainless steel weighing pan

Optional Accessories

Printer, RS-232 cable, RS-232 to USB converter kit, Carrying case, Rechargeable external battery pack, WinWedge software, 200 gram external calibration mass

What's included
User Manual
120V AC Adapter
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Additional Info
Additional Info
Brand Sartorius
Capacity x Readability 500 g x 0.001 g
Readability 0.001 g
Weight Modes Carats, Grains, Milligrams, Pounds, Ounces, Pennyweight, Grams, Troy Ounces, KiloGrams
Functions Averaging, Formulation, Percent Weighing
Features Parts Counting, RS-232c, Internal Calibration
Legal for Trade No Legal for Trade
Construction Solid Diecast Metal Base Housing, Stainless Steel Weighing Pan, Magnetic Force Motor Monolithic Weigh Cell
Calibration Motorized automatic internal calibration
Communication RS-232, Aftermarket DB9 RS-232 Adapter Converter with USB Cable can be purchased
Platform size (inches) 4.3 diameter
Power Requirements 120V AC Adapter included
Manufacturer Warranty (years) 2
Additional info Large blue backlit display can be adjusted to user's preference

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