Jeweler's weighing gemstones now have an accurate, rugged and portable balance with Swiss weighing technology. The Mettler-Toledo JS703C/A offer a weighing capacity of 140 grams or 700 carats with readability to 0.0001 grams or 0.001 carats. Large 3.54" diameter stainless steel weighing platform with a large spacious 3 door glass breeze break. This digital balance features motorized internal calibration, backlit LCD display, and Mettler's MonoBloc weighing technology.
Mettler's proven high-performance MonoBloc weighing cell guarantees a long service life, while internal adjustment provides a quick, comfortable way of adjusting the balance with just one keystroke. You can operate the JS703 on either AC or battery. The built-in battery slot fits 8 standard AA batteries for 8 hours of use. Ideal for jewelry trade shows or whenever a power receptacle is hard to find.
Mettler's Direct Connection allows you to connect your JS703C/A balance to a PC via the RS232 slot, and transfer your weighing results to open programs such as Excel. The transfer starts automatically, no additional software is required. The brilliant backlit display is ideal even under extreme lighting conditions, the numbers and symbols can be read easily and accurately on the brilliant backlit display.
Gemstone traders expects a carat balance to perform accurately and deliver impeccable results and the Mettler Toledo JS703C/A delivers. If you are a jeweler this Mettler Toledo JS703C/A is a Legal for Trade Class I digital scale offering 700 carats weighing capacity with 0.001 carat readability. The “d” (value of scale division) is 0.001 carats or 0.0001 grams and the “e” (value of verification scale division) is 0.01 carats or 0.001 grams. This carat scale meets the requirements as a Class I weighing device as defined by Handbook 44 and complies with the applicable technical requirements of "NIST Handbook 44: Specifications, Tolerances and Other Technical Requirements for Weighing and Measuring Devices". All this information can be reviewed by downloading the Certificate of Conformance # CofC 11-113.
When the Department of Agriculture Weights and Measures division tells you need a NTEP Class I balance that has a verification scale division of 0.001 grams the Mettler JS703C/A meets the requirement. This high degree of accuracy makes the JS703C/A a good choice for pharmacy compounding applications. You can learn more about verification division (e) and displayed division (d) by downloading NIST Handbook 44 - 2014 Edition here and review Section 2.
Gem stones can you cost you, not only in price, but in profits and reputation if there is disagreement in weight. Jewelers must be extremely precise weighing diamonds and other precious stones since a difference of 1 points (99 points to 100 points) can change the value of a stone by over 30% in some situations. A one carat diamond is the same thing as a 100 point diamond. There are 5 carts to 1 grams. Accurate weighing is a must and the Mettler JS703 diamond scale meets the requirements for most precious stone dealers and distributors.
Weighing diamonds is so important and in many states the law requires a NTEP Approved balance like the JS703C/A. Whether you are simply weighing small loose diamonds or large polished gem stones for a collector or museum you need accurate carat weight. Choosing a Mettler Toledo carat weight balance means choosing the right weighing instrument to benefit both your professional standing and peace of mind.
If you noticed the Mettler JS703C/A looks similar to the Mettler Toledo ML104E Classic ML Analytical Series. The Mettler JS balances are sold to the jewelry marketplace while the Mettler Toledo Classic ML balances are sold to the laboratory marketplace. Compare the price of the Mettler ML54 or ML104 and you'll see the value the Mettler JS703C/A offers. There are some minor differences between the models and we always recommend you download the user manual to understand the product better and if you have any questions give us a call at 978-521-7095 and a product specialist is available to help answer your questions.
Mettler Toledo JS Jewelry Standard Series Jewelry Balances
Precious metals and stones can you cost you, not only in price, but in profits and reputation if there is disagreement about gemstone weighing. This is why gold and diamond weighing precision is so important. Whether you are simply weighing an important sample of gold or diamonds, analyzing sample weights, or determining densities, quality weighing is especially important. Choosing a Mettler Toledo balance means choosing the right weighing instrument to benefit both your professional standing and peace of mind.
Ten pre-programmed applications- Mettler JS electronic jewelry balances have 10 application modes to suit a variety of weighing needs. Note - in order to use any of these functions they must first be set on one of the user selectable function keys.
Count pieces of uniform weight quickly and easily
Check a sample weight as percentage of a reference weight
Check the deviation of a sample weight, within a tolerance limit, to a reference weight
Multiplication Factor Weighing
Division Factor Weighing
Allows you to determine the sensitivity of the balance
Automatic repeatability testing, display test, motor test, scale history
Best choice for gemstone traders - Working with diamonds and other gemstones requires absolute precision – a small weight discrepancy means loss of money. So it is essential to have a precise and
reliable weighing instrument. JS diamond and gemstone scales have features that make weighing precious stones and metals easy and efficient.
Motorized internal calibration provides hassle-free adjustment of your jewelry balance.
High contrast backlit LCD display for certainty of gold weight measurements
RS232 interface for connection of jewelry balance to PC, auxillary display, or printer
Underhook weighing for specific gravity and below scale weighing
Designed to Last - Mettler provides several quality features in its jewelry balances to assure that they fulfill you gold jewelry weighing needs for years to come.
High-quality die cast aluminum housing provides protection for the load cell from dust and moisture
Overload protection assures that even an accident will not fatally damage the balance
Protective cover for when the balance is not in use assures that inadvertent damage will not happen to the weigh pan or keys
All of these features also make the JS digital jewelry balances easy to clean
Custom Weigh Units - JS series carat balances offer two ways of creating your own customized weigh units by either multiplying or dividing by a predefined factor.
Multiplication factor weighing
Requires the function to be set to one of the user selectable function keys
Multiplies the sample weight value in grams by a predefined factor and calculates it to a predefined number of decimal places
Division factor weighing
Also requires the function to be set to one the user selectable function keys
Divides the sample weight value in grams by a predefined factor and rounds it to a predefined number of decimal places
Self Diagnostic Testing- Use the JS gold jewelry balance's diagnostic application to find errors with the scale faster and more efficiently.
Requires a printer or PC be connected to the balance to display the results of the diagnostics
Repeatability Test allows you to repeat tests with internal weight for a given number of times
Display Test to assure that the backlit LCD display is working properly
Key Test to test the operation of the keys of the balance
Motor Test allows you to test the motor used for internal calibration. Requires internal calibration feature
View or print the history of the balance including the operation time, number of weighings, number of key presses, and number of motor movements
Accurate and Fast - Carat balances from Mettler Toledo are designed to deliver accurate,
trustworthy and repeatable
results every time. JS series digital gold balances feature a MonoBloc weighing cell and internal calibration weight for rapid settling and fast response times
MonoBloc weigh cell provides a robust and accurate heart to the Mettler JS gold balance with less hysteresis than other forms of weigh cells
Motorized internal calibration system assures quick and easy automatic calibration so you can start weighing sooner
Adjustable levelling feet and bubble for proper set up
JP or JS Gold Jewlery Balance ?
The main difference between the JS and JP gold jewelry balances is the number of additional features. For example, with the JP gem weighing scales you get Mettler's FACT automatic internal calibration system. You also get two data interfaces, either two (2) RS232 or one (1) RS232 and one (1) USB. The display of a JP is also different from that of a JS, JP has a high contrast HCD display while JS has a backlit LCD display. Finally, JP jewelry balance have built in density determination software to augment your weighing options.
Select from 10
different Mettler Toledo jewelry balances.
Need more accuracy? Do you need a 5 decimal place gram balance? The Sartorius Secura and Quintix semi microbalances are amazing. In the YouTube video above you will see the Sartorius Secura225D-1S semi microbalance [0-120g x 0.01mg] [120-220g x 0.1mg]. We highlight the intuitive operation using the SmartTouch user interface that is so easy to use you'll probably never need to reference the user manual. We also demonstrate the ergonomic draftshield and show how easy it is to dismantle the balance for easy cleaning.
Also you'll get a close up view of the new "collection container".
The collection container is designed to keep the spill from entering the lab balance that could cause potential damage to the balance. Sartorius' revolutionary "collection container" features a rimmed design to keep the spill from entering if you happen to spill any liquid or granular samples while weighing.