Ohaus Explorer EP4102 precision balance (4100g x 0.01g) can be purchased 3 ways - the standard Explorer EP4102 which has no internal calibration and is NOT Legal for Trade; the EP4102N which IS Legal for Trade with no internal calibration (check the box in the option section for Legal for Trade.  The prefix "N" designate Legal for Trade); the EP4102CN which is the EP4102 with motorized internal calibration and IS Legal for Trade (check the box in the option section for Internal Calibration.  The prefix "CN" designate Internal Calibration & Legal for Trade).

One design issue you should be aware of with the Explorer and Voyager Series outfitted with internal calibration when the balance is used in the non-NTEP mode is the inability to disable the use of internal calibration. The Ohaus line is the only balance we know of that does not allow you to disable the internal calibration.  Where this becomes an issue is most calibration A2LA Certification Calibration Companies will NOT calibrate a balance unless the internal calibration can be disengaged.  If your balance is going to require A2LA Certification the Sartorius CPA4202S Precision Balance may be a better choice.

Another design issue with the Ohaus Explorer 0.01g and 0.1 toploading balances is the windshield surrounds the platform implemented to deflect air currents from disturbing the weighing pan.  Notice how the windshield wraps around the weighing pan.  Sometimes this causes an obstruction in your weighing application where the item you are weighing "you think is on the platform" but actually the sample is touching the windshield, thus providing the incorrect weighing results.  The Sartorius CPA4202S Precision Balance and the Sartorius GP5202 doesn't have this windshield design.  The Sartorius GP5202 and offers a larger weigh pan 7.4" x 8.0" since Sartorius refined their balance so well it needs no windshield.

The EP4102CN is NTEP Approved (a.k.a. Legal for Trade) precision balance and we highly recommend you click the Certificate of Conformance hyperlink below in the balance specification table to fully understand the Ohaus EP4102CN limitations.  The Ohaus EP4102CN weighing specs are 4100g weighing capacity and increments in 0.01 gram increments, but in the NTEP / Legal for Trade mode the increment is only in 0.1 gram graduations.

Ohaus Explorer Pro Balances are available in both analytical and precision configurations, in a variety of capacities.  The Explorer Pro line of precision balances offers capacities ranging from 210 x 0.001 grams to 32,000 x 0.1 grams.  The analytical balances line offers capacities of 62, 110 and 210 grams and you can review them all at the bottom of this web page.

Before purchasing the Ohaus Explorer with 0.01 gram resolution, check out Sartorius GP5202 precision balance.  We feel the GP5202 precision toploader from Sartorius is CLEARLY the best value Precision Weighing Balances has to offer and we have them in stock for immediate delivery.

GP5202 toploading balance offers a maximum weighing capacity of 5200 grams and readability to 0.01 gram intervals.  This precision balance features a backlit LCD display, HUGE 7.4" x 8.0" weighing platform [Ohaus EP4102 is 6.8" x 6.8"], RS232 interface, parts counting mode, and external calibration all for an unbelievably low price.  Sartorius GP5202 balances are in stock and ready for immediate delivery.

Another similar model you should review is the Sartorius ED6202 precision balance.  This balance is very similar to the GP5202 except it has a higher weighing capacity of 6200 grams.  ED6202 balances have a deep discount price and feature parts counting function and RS232 interface.  ED6202 precision toploaders are in stock and ready for shipment.

Ohaus EP4102 science balance

OHAUS EP4102 Explorer Pro Toploader Balance
MSRP	$2094.00
PWB Discount Price	$1675.20
S&H via UPS ground	$30.00
Capacity x Readability	4100 g x 0.01 g
Repeatability (std deviation)	0.005 g
Linearity	± 0.02 g
Weighing units	gram, milligram, kilogram, pound, ounce, ounce troy, carat, pennyweight, Hong Kong Tael, Singapore Tael, Taiwan Tael, mommes, grain, tical, Newton, custom
Application Modes	Weighing, Parts Counting, Animal Weighing, Check Weighing, Percent Weighing, Filling, Gross-Net-Tare Weighing
Features	RS232 Port, Auxiliary Display Port, GLP Protocol, Selectable Language, Display Text, Selectable Displayed Information Settings, Selectable Environmental Settings, Selectable Auto-Print Settings, Integral Weigh Below Hook, Contrast & Brightness Control, Protective In-Use cover
Tare range	To capacity by subtraction
Stabilization time	3 seconds
Internal Calibration	Motorized Internal Cal is available as an OPTIONAL Factory installation for an additional $200
External Calibration	Optional 4000 g ASTM 1 external weight for span calibration
Legal for Trade	NTEP CofC 98-053A5 Approval only available when purchased with OPTIONAL Internal calibrations. 4100 g x 0.1 g (NTEP mode)
Display	LCD Dot Matrix w/CCFL Backlight
Display Size (in/cm)	2.5" x 4.7" / 64 x 120 cm
Display (pixels)	240 x 128 pixels
Pan size (in/cm) With Windshield	6.8" x 6.8" inches / 17.2 x 17.2cm
Dimensions WxHXD	8.5" x 4 " x 14.5" inches 21.5 x 10.1 x 37 cm
Power requirements	100-120 V AC, 220-240 V AC, 50/60 Hz
Operating temperature	50° to 104°F / 10° to 40°C
Optional Accessories	Internal Calibration, In-Use Cover, Security Device, SF-42 Compact Impact Printer Density Determination Kit, External Calibration, TAL Software, RS-232 Cable
Warranty	2 Year Warranty
Net Weight	10 lb / 4.5 kg
Data Sheet	Download the brochure loaded with tons of information.
User Manual	Download the user manual.  If you have a question how it works it is in the manual.

Ohaus Explorer Pro Laboratory Series Balances Download the User Manual to understand all the functions & features (select the model & any of the options and then the"BUY HERE" image) EP64 (0-62g x 0.0001g) $1804.00 Ohaus EP114 (0-110g x 0.0001g) $1958.40 Ohaus EP214 (0-210g x 0.0001g) $2266.40 Ohaus EP214D (0-100g x 0.0001g)(100-210g x 0.001g) $2001.60 Ohaus EP213 (0-210g x 0.001g) $1436.00 Ohaus EP413 (0-410g x 0.001g) $1675.20 Ohaus EP413D (0-100g x 0.001g)(100-410g x 0.01g) $1436.00 Ohaus EP613 (0-610g x 0.001g) $1536.13 Ohaus EP612 (0-610g x 0.01g) $1380.00 Ohaus EP2102 (0-2100g x 0.01g) $1436.00 Ohaus EP4102 (0-4100g x 0.01g) $1675.20 Ohaus EP4102D (0-1000g x 0.01g)(1000-4100g x 0.1g) $1436.00 Ohaus EP6102 (0-6100g x 0.01g) $1911.20 Ohaus EP4101 (0-4100g x 0.1g) $1230.40 Ohaus EP6101 (0-6100g x 0.1g) $1380.00 Ohaus EP8101 (0-8100g x 0.1g) $1530.40 Ohaus EP12001 (0-12000g x 0.1g) $2507.20 Ohaus EP22001 (0-22000g x 0.1g) $2712.00 Ohaus EP32001 (0-32000g x 0.1g) $2917.60

Optional Accessories Ohaus Density Determination Kit for 0.1/1mg balances $226.00 Factory installed Internal Motorized Calibration $330.00 NTEP approved version $400.00 Lock Down Security Device $104.00 Explorer Pro In-Use Cover $37.00 RS-232 Cable, IBM 9 pin $91.00 RS-232 Cable, IBM 25 pin $91.00 WinWedge Std Software Wedge for Windows $259.00 Granite Isolator 13 x 15 inch $465.00 SF42 Impact Printer (Requires RS232 Cable Sold Separately) $425.00 RS232 Cable, SF42 Printer to Explorer Pro $88.00 Spare/Extra Ribbon for SF42 Printer $25.00 Spare/Extra 5 rolls of printer paper for SF42 Printer $35.00

Optional Calibration weight and weight sets includes Certificate of Calibration showing conventional mass correction. 1mg-100g 21 piece Ulti Mass Set $1499.00 10mg-100g 17 piece Class 2 Mass Set $1205.00 10mg-50g 16 piece Class 1 Weight Set $1177.00 1g-100g 9 piece Class 1 Calibration Mass Set $764.00 1g-50g 8 piece Class 2 Certified Weight Set $725.00 100g-1kg 5 piece Class 2 Calibration Weight Set $645.00 50g ASTM Class 1(± 0.12 mg) cal mass $89.00 100g ASTM Class 1(± 0.25 mg) cal mass $94.00 200g ASTM Class 1(± 0.50 mg) cal mass $134.00 500g ASTM Class 1(± 1.2 mg) cal mass $159.00 1kg ASTM Class 1(± 2.5 mg) cal mass $174.00 2kg ASTM Class 1(± 5 mg) cal mass $219.00 5kg ASTM Class 1(± 12 mg) cal mass $369.00 1000 g ASTM Class 6 (± 100 mg) mass $40.00 2000 g ASTM Class 6 (± 200 mg) mass $60.00 5000 g ASTM Class 6 (± 500 mg) mass $100.00

Weighing Pans YWP06G Weigh Pan w/ 3.25" Diameter and 0.75" depth $25.00 YWP05G Weigh Pan w/ Spout & 3.5" Dia. w/ 1.75" Depth $50.00 YWP04G Gem Pan w/ 6.75 inch Diameter with 0.8 inch Depth $25.00 YWP03G Weighing Gem Pan w/ 5.25" Dia. & 0.8" Depth $25.00 YWP777G Weigh Pan w/ Pour Spout 2.4" Dia. & 0.6" Depth $25.00

The Explorer Pro Series
of standard level balances was designed for simplicity and includes the industry ’s easiest user interface for effortless setup and operation; no training is required.  The Explorer Pro offers all the features and durability found in high-end laboratory balances plus the traditional Ohaus quality and support for years of trouble- free use!
Standard Features Include:
Simple 2-key menu navigation Text prompts for fast setup 7 Application modes plus below balance weighing Brilliant backlit high resolution dot matrix display RS232 port for easy communication with computer or printer GLP compliant with user selectable outputs 5 Language operational display text Protective in-use cover and security bracket Industry leading warranty and support NTEP Legal-For-Trade approved models available
Application Modes
Percent Weighing: allows you to place a reference load on the pan, and check other samples as a percent of the reference load.  Each new sample will be a "percentage" of the original reference, the display shows the variance in – or + percent of the reference. Gross/Net/Tare: is an application mode commonly used when you need to identify the individual weights of the container, the material and both together.  The container weight is the Tare weight, the material is called the Net weight and the container and material together are called the Gross weight.  The Net weight is displayed on the readout. Weighing: Basic weighing with primary and secondary weighing units, time, date and capacity bar. Dynamic / Animal Weighing: Dynamic weighing allows the user to weigh unstable matter that may be moving. This mode can be set to manual, semi-automatic, or automatic; the displayed data includes filtered weight and unfiltered weight.  Displayed data also includes filter level, capacity bar graph and operation mode (manual, semi or auto). Parts Counting: Enhanced parts counting features include auto sample optimization, user definable sample size and manual entry using scroll keys.  The "Parts Counting Check" feature allows for quickly checking a sample of pieces against a preset criteria, with results displayed as the number of pieces.  The "Parts Counting Fill" feature allows for quickly checking a sample of pieces against an established criteria, with results displayed as a percentage of the preset target. Filling: Filling permits the user to preset a target reference weight, then add material to the balance to meet the target weight.  The display shows the preset target weight and the percentage of the target by monitoring the differential data, the fill bar is split in two sections for fast filling up to 90%, then slower accurate fill to reach target (100%) weight. Checkweighing: is used when items need to be checked against a preset target, after the target weight is set, and over/under parameters are established.  Checkweighing is measured as a factor of over the target, under the target, or accept.  The display automatically shows the difference in percent and weight.
Optional Accessories
The Explorer Pro Series offers a complete line of accessories and masses to expand your mass measurement capabilities, including: Density determination kit (for 0.1mg and 1mg balances), modular display upgrade kit (for balances up to 8kg), model SF42 42-column impact printer, auxiliary table display, remote table displays, security devices, RS232 cables, TAL Software WinWedge V1.2, calibration masses.	Shown above is weigh below underhook
Industry Leading Quality and Support
All Ohaus Explorer® Pro balances are manufactured under an ISO 9001:2000 Registered Quality Management System. Our rugged construction and stringent quality control have been hallmarks of all Ohaus products for nearly a century.

[Click for Hi-Res Image]
Density
Four methods of density determinations can be made with the Voyager Pro balance.
The Four Methods of Density Determination: Solids more dense than water Solids less dense than water Liquid density Porous material (impregnated with oil).
An accessory density determination kit is designed to be used with Ohaus Explorer Pro balances.  A built-in reference density table for water at temperatures between 10°C and 30°C is included in the balance software.  When making density measurements, the material should weigh at least 10.0 mg on an analytical balance and 100 mg on a precision balance.

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