Gram Scale Calibration
Gram Scale Calibration
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 19 Piece Precision Scale Calibration Weight Boxed Set 100 Gram to 10 Milligram  US $28.65
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When Weighing and Counting Accuracy are Paramount Depend on an Analytical Balance
There's a great scene in Rain Man where Raymond the autistic savant (Dustin Hoffman) knew how many toothpicks fell on the floor. He kept saying 82. His brother Charlie (Tom Cruise) commented that there were more than 82. Raymond then says "246 total." Charlie: "How many?" Sallie Dibbs (Bonnie Hunt) reading from the box: "250." Charlie: "Pretty close." Sallie: "There's four left in the box."
This admittedly is a simplistic introduction to the serious topic of accuracy in weights and quantities. Precision weights and counts are critical across a broad range of businesses. Examples include research labs where processes are developed to manufacture pharmaceuticals and food products. Laboratory technicians rely on an analytical balance to develop processes and procedures that later move to commercial production.
Enter the Versatile Analytical Balance
You will not find a precision analytical balance on the production floor. These weighing and measuring instruments are found in the lab and protected from vibration, air flow and temperature fluctuations that can impair accuracy – especially critical for high-end models with readouts to 0.01 milligram and linearity (± from the actual load) to ±0.15 milligram. So sensitive are some of these instruments that they are capable of weighing loads as low as 1 milligram. At the other end of the scale, the maximum weight for an analytical balance can be several hundred grams.
The Talented Analytical Balance
Raymond's toothpick count provides an example of what an analytical balance can do. Piece counting is done by first manually counting out the number of pieces desired for a particular process then establishing the weight of that count. The balance can be set to display either the number of pieces or their weight.
Tolerance weighing, also called check weighing, enables laboratory technicians and researchers to program in a ± deviation from the target weight. In some models of analytical balances pilot lamps show red when the load is below, yellow for above and green for "right on" the set limit. Other models emit acoustic signals. Deviations from the target weight can also be displayed as a percentage when the target is set at 100%.
When objects being weighed or counted are placed into a special container, the weight of the container (tare weight) must be accounted for. This is accomplished by setting the balance display to zero when the empty container is put on the weighing platform. Net weight is recorded when the product is placed into the container.
Keeping it Honest
The FDA and other regulators have a keen interest in the accuracy of analytical balances. Procedures apply for initial calibration and regular recalibration of these precision instruments. High-end models automatically recalibrate under certain operating conditions, while others are manually recalibrated using external weights. What all users must also remember is that an analytical balance is a delicate instrument and should not be moved without taking proper precautions to protect the weighing mechanism.
Important, too, is GLP and ISO record-keeping. This is accommodated by connecting the analytical balance to a PC and a statistical printer using, for example, an RS 232 interface.
About the Author
Bob received his Ph.D. in Chemistry in 1986 and he is still a science geek. After graduating he worked as a bench chemist for 12 years. He then combined his passion for science and business and took entrepreneurial management positions at Hoecsht, Bel-Art and Smiths Detection. Using the skills he learned at the big companies he co-founded, Tovatech, a laboratory equipment distributor, in 2006. Bob's hobbies include playing, listening and composing music, skiing, working out, the internet and all things science.
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Hornady 050107 1500 Grain Electronic Scale with 100 Gram Calibration Weight $45.54 The Hornady GS 1500 Electronic scale has a streamlined design and wire free battery power supply two AAA batteries. with the 1500 grain capacity this scale can handle any reloading task even the 50 BMG. Comes complete with measuring pan and precision 100 gram calibration standard weight. Type: Electronic Scale. Caliber: Any. Size: 1500 Grain. Quantity: 1. Weight: 100 Gram Calibration Weight. |
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Digital Scale Calibration Weight (100 grams) $3.8 Digital Scale Calibration Weight (100 grams) |
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CALIBRATION WEIGHT KIT 16PC 1MG50G $31.9 American Weigh Scales presents and delivers state of the art scales as well as traditional scales at the most affordable prices. We understand your needs as a customer. We also understand your budget. We do our level best to exceed your expectations in quality service design and function. After all It is The American Weigh (Way). Most any type of digital scale you can think of American Weigh carries. American Weigh can help you find the scale that fits your needs and your budget. AmericanWeigh is your source for quality design function and friendly timely service. We are committed to doing business the dignified ethical way and in a way you deserve. The American Weigh Thank you in advance for allowing American Weigh the privilege of serving you. . This weight kit includes a wide range of calibration masses. Perfect for checking the accuracy of your precision digital or mechanical scales with less then 100 gram capacity. Tweezers includes. Gram Weights: 1 x 50g 2 x 20g 1 x 10g 1 x 5g 1 x 2g 1 x 1g. Milligram Weights: 1 x 500mg 1 x 200mg 1 x 100mg 1 x 50mg 2 x 20mg 1 x 10mg. Case Dimensions: 4.6 x 3.5 x 1.7 . |
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Calibration $12.49 Calibration |
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Electronic Pocket LCD Digital 500 Gram Weight Diamond Jewelry Scale $21.99 Description:Unique and compact modern designTransparent cover for powder weighingThis Electronic Pocket Scale with professional stainless steel platform;Digital Weight Scale is simple operation and easy to read;LCD display4 units selection: gn/oz/gn/ctBacklight: blueSpecification:Capacity of the scale: 500g x 0.1gSize: 9.3 x 9.4 x 1.5cm (L*W*D)Calibration: auto calibrationTare range: tare full capacityAuto off: 60 seconds off approx.This Pocket Scale powered by 2 x AAA batteries (not included);Weight: 179.9gPackage contents:1 x Digital Pocket Scale1 x manual |
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100 GRAM CALIBRATION WEIGHT $20.24 Metric. 100 Grams. Stainless Steel. Flat top allows for stacking. OIML Class: M2 Certificate Not Supplied. Suitable for general laboratory commercial and educational use. |
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500 GRAM CALIBRATION WEIGHT $22.58 Metric. 500 Grams. Stainless Steel. Flat top allows for stacking. OIML Class: M2 Certificate Not Supplied. Suitable for general laboratory commercial and educational use. |
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200 GRAM CALIBRATION WEIGHT $11.34 Metric. 200 Grams. Stainless Steel. Flat top allows for stacking. OIML Class: M2 Certificate Not Supplied. Suitable for general laboratory commercial and educational use. |
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300 GRAM CALIBRATION WEIGHT $21.8 Metric. 300 Grams. Stainless Steel. Flat top allows for stacking. OIML Class: M2 Certificate Not Supplied. Suitable for general laboratory commercial and educational use. |
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50 GRAM CALIBRATION WEIGHT $19.47 Metric. 50 Grams. Stainless Steel. Flat top allows for stacking. OIML Class: M2 Certificate Not Supplied. Includes Plastic Case. Suitable for general laboratory commercial and educational use. |
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Digital Jewellery Scale 10g $25.4 - Flipopen protective cover safely guards the highly sensitive weight cell- Maximum load: 10.000 grams- Resolution: 0.001 gram- Batteries included- Two calibration weights included- A pair of tweezers included |
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JScale HP-100X Digital Scale $28.99 A trusted name in weighing for over 30 years. JScale is a well known brand of digital scales. Originally founded in 1973 with Jennings food scales we progressed into the precision scale market and in 1994 we released the first of our digital scale series. Recently they have launched our new line of digital pocket scales and utility/fish scales. There digital scales and weighing instruments are sold at stores worldwide. JSCale prides themselves on offering the best value per dollar in the digital scale industry! Key Benefits of The HP-100X: 100 Gram Capacity 0.01 Gram Accuracy Reads in Grams, Ounces, Carats & Grain Auto Calibration Energy Saving Auto-Off Feature Built-in Memory Function Batteries, Backlight, Adding Feature, Stainless Steel Tray All Included Ultra Low Cost 5 Year Warranty. |
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Jennings Digital Watch Scale $14.99 The Brand new Jennings JScale Watchscale® is the first ever scale to be worn on the wris and features an incredible 300g x 0.1g max load and accuracy. This is truly a miniture "pocket scale" you won't find another digital scale quite like the Watchscale® . The Watchscale® is the only scale you need never be without. Your friends will gawk and say 'Holy cow!' when they see this amazing invention. Nobody will beleive this stylish fashion accessory is an actual, top notch digital scale. Disguise your digital pocket scale as a watch and take it anywhere! The Jennings Watch Scale digital scale is the size of a wristwatch, and at a glance no one can tell the difference! With astonishing .1-gram accuracy, the Jennings Watch Scale is the smallest digital scale in the world -- 30% smaller than any other digital scale you've seen before! Attached to a quality leather wristband, the watch scale includes a cover that double as a large expansion tray. And the Jennings warranty protects your digital scale for the next twenty years! Key Benefits: The first Pocket WatchScale® ever! It's amazingly small, the smallest digital scale ever made (2008) Reads in Grams, Ounces, Troy Ounces & PennyWeight Tare Feature Protective-Cover doubles as an Expansion-Tray Stylish Leather Wrist-Band Bright-Blue Back-lit LCD Display 30 Second Auto-Off Powered by 2 LR-44 Batteries (Included) Calibrates with 200 Gram Calibration Weight (optional) 20 Year Replacement Warranty (Through Jennings) |
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Digital Weight Scale Professional Mini Scale for Jewelry Weighing 100g 0.01g $11.99 Mini 100x0.01g Jewelry Gram Digital Balance Weight Scale Gold Features: · 100% Brand New. · Weight: 116g · Size: 11 x 7.2 x 1.7 cm · Miniature pocket size fits in the palm of the hand · 3 key operation and easy-to-read LCD back lite display · 6 unit's selections: g /oz /ozt /dwt /ct /gn ; · Tare weight function · Low battery warning · Calibration: auto calibration · Operation temperature:10-30ºC · Press TARE and wait until"0.0" is displayed · Auto shut off · China patent ZL 200730056241.9 Package Content: · 1 x Pocket scale · 1 x English instruction Type: Food Scales Color: Black Color Mapping: Black Power: Electric |
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TATCO Portable Digital Pocket Scale $60.99 0 oz 0% 0.04" Height x 4.37" Width x 2.02" Depth 1 1 kg 2 2.20 lb 2.4" 59100 Portable pocket scale features a digital touch-screen, 2-3/8" x 2-3/8" stainless steel platform and multiple modes, including ounces, grams and count. Capacity ranges from 1.76 to 35.27 ounces or 50 to 1000 grams. Pocket scale has a high accuracy from .003 to .0003 oz. Touch screen functions include on/off, tare, mode and calibration. Hinged flip-up shield features directions and a cover. Automatic shutoff preserves batteries. Pocket scale requires two AAA batteries (sold separately). AAA Auto Shut-off Battery China Digital Postal Scale Gram LCD No Not Applicable Ounce Portable Digital Pocket Scale Silver TATCO Tare Adjustment Tatco Products, Inc www.tatcoproducts.com |
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Triton T2 Digital Scale $21.99 The New Triton T2 is a classic design pocket scale. It's thin, durable and accurate. Although this scale is small, it's cover can be used as an expansion tray to make the weighing platform larger then most table-sized scales. The resilient integrated ribbed poly-case and 5PPS* makes it more durable then any other scale in it's class. *The Triton uses the exclusive new 5PPS 5 Point Overload Protection System to help prevent damage from accidental overload of the scale. The Triton is a classic design and may not be quite as contemporary or have as many features as the Palmscale 6 However it is both very durable and very accurate. Reads up to 550 grams with 0.1 gram accuracy Exclusive 5PPS Overload Protection Batteries Included Proven long-term durability and reliability Full Tare feature Auto Calibration and zero tracking Built in ABS Polymer Hard cover with non-slip grip-ribs for easy holding and handling Cover doubles as a large expansion tray Lifetime replacement Warranty-CE Ultra Low Cost Durable & Accurate Large Rubber Soft-Touch keys Extra-Large BACKLIT LCD display Magnetic cover-clasp prevent accidental opening FOR ALL SCALES- CLICK HERE |
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Digital Pocket Scale with Touch Screen $18.99 Description: With its fine 0.01gram readability, this scale can be used as a postal scale for weighing letters and small packages up to 200gram. We are the professional manufacturer that has made digital scales for different brands. We assure that every product with accurate sensors and thicker platform. Features: 1. 200 gram capacity 2. 0.01 gram accuracy 3. Low battery & Overload indicator 4. Calibration available , weights not included 5. Weighing modes : g , gn , dwt , ct 6. Tare function 7. Counting Function 8. Auto shut off if not use in 60 secs. 9. Powered by 2 AAA Batteries included 10. Dimension of scale : 120 x 65 x 18mm 11. Platform size : 63 x 52mm 12. Scale weight : 120g Package Includes: 1 * 200 x 0.01 Digital Pocket Jewelry Scale Brand: AGPtek Type: Digital Scale Color/Finish: As Shown Gender: Unisex |
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AMW 2000 X 0.1G PORTABLE DIGITAL SCALE $53.86 The new SC Series from American Weigh is built tough for big jobs. The SC features one of the largest platforms sizes for a precision pocket scale 4x4. You can also use the two included weighing trays as a protective case when the scale is not in use.Large stainless steel weighing surface 4 x 4Backlit LCD Display 3 button operation Powered by 2 AAA batteries includedLinear Calibration 10 Year Limited Warranty 1 gram minimum |
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Tanita 1475 Digital Pocket Scale, Gram Version $92.95 The perfect digital pocket scale for use as a diet scale for weighing food portions - both at home and on the go! 1000 gram capacity x 1 gram readability. Only 5-3/5 x 3-1/2 x 5/8 inches and weighs only 6 ounces! |
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20pcs Mini 1000 x 0.1 Gram Digital Pocket Scale Jewelry Scale free shipping $125 20pcs Mini 1000 x 0.1 Gram Digital Pocket Scale Jewelry Scale free shipping |
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200g x 0.01g Digital Pocket Scale Jewelry Gold Lab Diamond Scale Touch Screen LCD (5-in-1 Function) - Slim Digital Scale $16.99 Description: With its fine 0.01gram readability, this scale can be used as a postal scale for weighing letters and small packages up to 200gram. We are the professional manufacturer that has made digital scales for different brands. We assure that every product with accurate sensors and thicker platform. Features: 1. 200 gram capacity 2. 0.01 gram accuracy 3. Low battery & Overload indicator 4. Calibration available , weights not included 5. Weighing modes : g , gn , dwt , ct 6. Tare function 7. Counting Function 8. Auto shut off if not use in 60 secs. 9. Powered by 2 AAA Batteries included 10. Dimension of scale : 120 x 65 x 18mm 11. Platform size : 63 x 52mm 12. Scale weight : 120g Package Includes: 1 * 200 x 0.01 Digital Pocket Jewelry Scale Type: Food Scales Color: Black Color Mapping: Black Power: Electric |
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Black Digital 0.4-pound Pocket Scale $16.61 This is a black, 0.4-pound digital pocket scale. Carry it in your pocket for when 'weighty' emergencies arise.Calibration key enabledLCD display with back lightStainless steel salverEasy to operateAutomatic alarm by low battery5 unit selections gram/ounces/Troy-ounce/pennyweight/caratPan size: 2.87 inches long x 2.56 inches wideCapacity: 0.4-poundsAccurate up to 1/100gBatteries: Two (2) AAA (Not included)Warning: California residents only, please note per Proposition 65, this product may contain one or more chemicals known to the State of California to cause cancer, birth defects, and/or other reproductive harm. Wash hands after handling or using this product, and contact the manufacturer(s) for information regarding the chemicals that may be contained in these products. |
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JScale 150 Gram Lighted Digital Scale $21.99 A trusted name in weighing for over 30 years. JScale is a well known brand of digital scales. Originally founded in 1973 with Jennings food scales we progressed into the precision scale market and in 1994 we released the first of our digital scale series. Recently they have launched our new line of digital pocket scales and utility/fish scales. There digital scales and weighing instruments are sold at stores worldwide. JSCale prides themselves on offering the best value per dollar in the digital scale industry! Key Benefits The JS-150V Are: WEIGHMETER Technology 150 Gram Capacity 0.1 Gram Readability Reads in Grams, Ounces, Troy Ounces, Carats, Grains, Pounds & Pennyweight Advanced Parts Counting Function with Multiple Sample Sizes Removable Protective Flip-Up Cover with Magnet Clasp, can also be used as an expansion tray Extra Large Backlit LCD display Soft-Touch Rubber Keys Stainless Steel Tray with raised lip to prevent loose items from falling off the tray Spill-catching rim embedded into the plastic scale housing Extreme Overload Protection Batteries and Leather-Style Pouch Included Unique Hand-Formed Patented Design 20 Year Warranty. |
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Escali L125 LSeries High Precision Scale 125 Gram 0.01 Gram $77.94 Capacity with increments 125 gram Dimensions 8in x 5.75in x 2.5in Hold feature displays the weight of an item after removal from scale Measuring units Grams Ounces Grains Carats Pennyweights and Troyounces Tare feature subtracts the container s weight to obtain the weight of its contents Stainless steel removable top makes cleanup fast and easy Automatic shutoff feature ensures long battery life Includes easytouse operations manual Memory feature |
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Compact 4 ounce / 100 gram Postal Scale $2.99 This classic postal scale is the easy and acurate method to weigh small objects up to 100 grams or 4 onces. To opperate this easy to use scale simply hang the scale from any surface and hang the object you would like to weigh. the scale does the rest! This easy to read scale will work in most any appliction and is compact in size so it can be easily carried in a pocket and is more descrete than larger digital scales. |
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My Weigh Ibalance 201 Table-top Precision Scale $213.54 Brand: My WeighMax weight capacity: 200 gramsWeight increments: 0.01 gram resolutionTare, calibration and counting functionsStainless steel platform and protective windscreenLiquid level indicator for precise weighingWeighing modes: Gram, ounce (7.0545 oz x 0.0005 oz), milligram (200,000 mg x 10 mg), troy ounce (6.4300 ozt x 0.0005 ozt), pennyweight (128.60 dwt x 0.01 dwt), carat (1000.00 ct x 0.05 ct) and grain (3086.8 gn x 0.1 gn) weighing modesScale has a backlit display, tare feature and calibration modeCalibration weight and AC adapter includedModel: SCM201 |
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AMERICAN WEIGH 250 GRAM TOUCH SCREEN $40.46 Easy to use touch screen operation. Large Back Lit Display. Flip top cover protects weighing surface when not in use. 250g x 0.1g. Thin compact design. Expansion tray included. Vinyl Carrying Pouch. Capacity: 250g / 8.820oz / 8.038ozt / 160.8dwt. Readability: 0.1g / 0.01oz / 0.01ozt / 0.1dwt. Linearity: 2d. Repeatability: 2d. Stabilization Time: 35 seconds. Calibration Weight: 200g(not included). Platform Dimensions: 2.6 x 1.8 . Scale Dimensions: 4.3 x 2.8 x 0.8 . Power: 2 x AAA Batteries (included). Color: Silver. |
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Digital Scale (600g Max) $17.1 Tare (Reset) Function Auto calibration Auto OFF for saving energy |
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Adam Equipment Calibration Weight ASTM 42000g Class 4 $153.56 Calibration Weights ASTM 42000g Class 4. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 0100g Class 0 $221.13 Calibration Weights ASTM 0100g Class 0. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 1200g Class 1 $116.71 Calibration Weights ASTM 1200g Class 1. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 1500g Class 1 $153.56 Calibration Weights ASTM 1500g Class 1. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 12000g Class 1 $386.98 Calibration Weights ASTM 12000g Class 1. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 2100g Class 2 $79.85 Calibration Weights ASTM 2100g Class 2. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 21000g Class 2 $153.56 Calibration Weight ASTM 21000g Class 2. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |
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Adam Equipment Calibration Weight ASTM 350g Class 3 $61.43 Calibration Weights ASTM 350g Class 3. Stainless steel. Supplied with impactresistant polypropylene case. Perfect for keeping your precision scale calibrated and accurate anytime and anyplace. |