GP-40K Precision Scale from A&D Weighing

Readability (mg) 500
Capacity (g) 41000000
Stabilization Time (sec) 1.5
Repeatability (mg) 500
Pan Size (mm) 384
Internal Calibration Yes
RS-232 Yes
Bluetooth No
USB Yes
PS2 No
WiFi No
Ethernet Yes
Display Alpha Numeric
ISO Yes
GLP Yes
GMP Yes
GCP No
Mobile App No

With a wide selection of choices available when buying a 500mg readability Precision Scale, Lab.Equipment is going to simplify things for you! The A&D Weighing GP GP-40K might be perfect for your needs, if not, you will surely find the perfect lab balance unit for your application requirements based off our review, FAQ, and comparison of the GP-40K to other Precision Scales below so continue reading, you are almost there.

Lab.Equipment showcases 185 Precision Scales from all 8 Precision Scale manufacturers such as A&D Weighing. Unlike every other single distributor shoving a catalog in front of your face displaying the exact same buzz words, jargons, and propriety terms each manufacturer has “made up” to puzzle us diligent lab staffs, we filter out the unnecessary with true descriptions thoroughly written for you. We provide apples-to-apples comparisons of analytical balance performance. Trust us to help you save valuable time and ensure you get the best Precision Scale for your needs whether it is with this A&D Weighing GP-40K or not.


How accurate and sensitive is the A&D Weighing GP-40K Precision Scale compared to other 500mg readability balances available?

GP-40K Readability

With a readability of 500mg, the GP-40K is designed to handle most basic weighing tasks within your lab. The GP-40K is part of the A&D Weighing GP series best for applications including laboratory testing and chemical analysis.


How precise is the GP-40K Precision Scale against other 500mg readability balances?

GP-40K Repeatability

The GP-40K offers 500mg repeatability. Typically presented as standard deviation and important to persistently producing the same results when the same weight is placed on the lab balance several times, repeatability is one factor that can affirm accuracy and validity.


What is the response time of the GP-40K Precision Scale contrary to other 500mg readability balances?

GP-40K Stabilization Time

The time that the GP-40K balance takes to stabilize from the time you put your sample on it and displays results is 1.5 seconds.


Looking for a PDF quote for the A&D Weighing GP-40K Precision Scale?

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How do you calibrate the GP-40K?

Avoid notable changes when it comes to measuring results. Easily calibrate the A&D Weighing GP-40K thanks to its intuitive Internal Calibration.


What size of samples can I weigh on a GP-40K with a 500mg readability range?

GP-40K Pan Size

With a 384mm maximum diameter pan size

Weighing Capacity

Offering a weighing capacity of 41,000,000g, the GP-40K is capable of working with comparatively larger samples in comparison with other models.


Other remarkable features of the A&D Weighing GP-40K Precision Scale

GP-40K Display Screen

With the intuitive Alpha Numeric display, you can document measurements without the need to have the GP-40K connected to a computer.

Accreditations of the A&D Weighing GP-40K Precision Scale

The GP-40K is compliant to ISO, GLP, GMP regulations.


Frequently Asked Questions for the GP-40K Precision Scale:

Can I connect the GP-40K to a printer?

Since the GP-40K does have a USB cable port, you can connect it to a printer. If you already have an RS232 printer, it will also work on the included RS232 port of the GP-40K.

Can I connect the GP-40K to my lab's network?

The GP-40K does not have a built in Wi-Fi. But the GP-40K does have a built in Ethernet port so you can connect it over your existing wired network.

Do you have any questions about the A&D Weighing GP-40K Analytical Balance that we missed answering for you here?

Just ask via live chat to the right, our Contact Us page, or email help@lab.equipment and we will get back to you with a prompt and friendly response.




  • IP65 rated, all-metal body, stainless steel pan

  • Read display at any angle

  • 12 units, comparator, %, counting functions

  • Time & date stamp built-in

  • User calibration function

  • 5 year warranty


For higher capacity weighing with the choice of an adjustable swing arm display (GP) or mountable detached display (GP-S). SmartRange feature for improved precision, regardless of tare container weight.

Internal Calibration

The GP internal calibration with an internal mass saves time and money. External calibration requires a great deal of skill, time and an expensive external mass. With our internal calibration with internal mass, the balance is calibrated very quickly. ■ Automatic Self Calibration — Self-calibrates automatically when the balance detects ambient temperature changes.

■ One Touch Automatic Calibration — Allows you to calibrate the balance on demand with just the push of a button.  

■ Calibration is essential for accuracy in weighing. For example, in high-resolution balances, changes in sensitivity drift can be caused by changes in the ambient temperature. Take the GP-30K for example, the weight might change by 0.9g with a change of 10˚C ( Sample’s weight: 30kg ).

■ Thanks to our Double Leveraged Super Hybrid Sensor, the GP's motor-driven internal calibration mass is equivalent to a 50kg calibration mass in terms of top loading capacity on the weighing pan. The adjusted weighing accuracy is within +–15 digits in relation to the weighing capacity while conforming to the OIML's Class II balances definitions after using GP's internal calibration mass.

Standard WinCT

WinCT (Windows Communication Tools Software), provides easy transmission of weighing data from A&Dbalances to a computer using the RS-232C interface. Speed of data transfer into Windows applications in a manageable format is limited only by the computer’s capabilities. RS-232C

RS-232C Interface

Using a USB/ RS-232C Converter, you can transfer data between a USB-equipped PC and a GP balance. This also makes your GP balance hot-swappable meaning that there is no need to turn the balance and/or computer off before disconnecting the balance.


For over 40 years, A&D Weighing has been providing advanced and accurate measurement instruments for a diverse range of markets including Research, Industrial Protection, Jewelry, and Food Processing. One of the trusted names when it comes to precision measurement and product inspection, A&D Weighing delivers an innovative line of electronic balances, digital scales, weighing indicators and controllers, load cells, and non-destructive measurement equipment. Complying to ISO:9001-2008 standards, A&D manufactures high quality products from worldwide operations in the US, Japan, Germany, Australia, Great Britain, and Korea and serves the Americas from its headquarters in Silicon Valley, San Jose, CA. Trust A&D to prove performance with its 5-year warranty on all microbalances, analytical balances, and precision scales.

A&D’s product line available on Lab.Equipment is comprised of the following:

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Ethernet: Yes
Mobile App: No
[Lab Balance] Bluetooth: No
[Lab Balance] Capacity (g): 41000000
[Lab Balance] Display: Alpha Numeric
[Lab Balance] GCP: No
[Lab Balance] GLP: Yes
[Lab Balance] GMP: Yes
[Lab Balance] ISO: Yes
[Lab Balance] Internal Calibration: Yes
[Lab Balance] PS2: No
[Lab Balance] Pan Size (mm): 384
[Lab Balance] RS-232: Yes
[Lab Balance] Readability (mg): 500
[Lab Balance] Repeatability (mg): 500
[Lab Balance] Stabilization Time (sec): 1.5
[Lab Balance] USB: Yes
[Lab Balance] WiFi: No

http://www.andweighing.com/pdf/Balances/Industrial/GP Industrial Balance Series/GP Instruction Manuel.pdf

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