GENEQ > Biotechnology > Analytical Balances

Ohaus Discovery Balances
 

The Professional's Choice For Analytical Applications !
The NEW Ohaus Duscovery series of semi-micro and analytical balances combine unmatched weighing performance with Ohau's innovative SmarText™ software, making it extremely reliable and easy-to-use. The Discovery features durable glass and steel construction and together with advanced AutoCat™ internal calibration make it the best performing balance in its class:
Highest Performance with repeatability and linearity performance that's 2x better than most balances in its class
SmarText™ Software utilizes text prompts to guide users throught application use and balance setup
Advanced AutoCal™ automatic internal calibration ensures accurate weighing
The Ohaus Discovery series features four analytical models with capacities up to 310g by 0.1 mg with a FineRange™ model that offers 10 microgram readability. Discovery is perfect for university research, pharmaceutical research and drug discovery, and general lab applications.

Key Feautures

Highest Performance

Discovery's repeatability and linearity performance is 2x better than most semi-micro balances in its class. Glass and steel construction resists the effects of static and corrosion increasing balance stability and accuracy , as well as extending product life.

SmartText™ Software

SmarText™ is Ohaus' easy tu use balance software that utilizes text prompts to guide users through application use and balance setup. Delivered through a 2-line backlite LCD and clearly marked buttons, SmarText™tells you what is going on and what you have to do next.
Utilizing the 2-line LCD, SmarText™ will display application reference information such as the average piece weight (APW).

Advanced AutoCal™

To minimize weighing errors and ensure accurate measurments, AutoCal™ utilizes two internal weights to performa a linear calibration.
AutoCal™ internal calibration system automatically calibrates the balance when it senses a temperature change signifiant enough to affect the weighing accuracy.

Application Modes
Statistics
Statistics are used when it is desired to compare a number of samples and examine the relative deviation of the samples along with other statistical data. A minimum of three samples are required in this program. Statistics contains menu options which include: number of samples, maximum, minimum, difference, sum, mean, standard deviation, relative deviation, auto sample, and auto print.
In addition to standard weiighing, statistical data can be provided for Aniam/Dynamic Weighing and Chechweighing measurements.
Density
Discovery provides users four methods of density determination to choose from depending on their need.
They are:
1: User can determine density for solids more dense than water
2: User can determine density for solids less dense than water
3: User can determine density for liquid density (sinker needed - not included)
4: User can determine density for Porous material ( impregnated with oil_.
After entering a couple pf parameters into the balance, the built in density table, and mass measurement of the balance take over to provide rapid and accurate density results, with non manual calculations needed.
Pipette Calibration
Pipette calibration checks the accuracy and precision values of pipettes by weight analysis. The Discovery DV215CD 0.01mg semi-micro balance is recommended for maximum accuracy. To calibrate a pipette, the user will select the type of liquid to be used in the pipette (normally water), barometric pressure, nominal value, and unit of measure of the pipette. The balance will do the rest. The Discovery will accept an alternate liquid's density in g/cc at current room temperature as well.
Percent Weighing
This mode allows the user to display the weight of a sample as a percentage of a reference weight useful in sieving applications, reagent weighing, moisture determination, and other types of ingredient mixing.
Parts Counting
Parts counting mode is useful when counting pills, or parts that have a consistent, but low nominal mass. This mode allows the user to count based on a calculated piece weight. The optimization feature improves counting accuracy by automatically re-calculating the piece weight as parts are added.
Check Weighing
This mode allows the user to check the weight of a sample against preset traget parameters such as underweight and overweight.
Animal/Dynamic Weighing
Dynamic weighing can be used when either a rough environment is encountered such as on a ship, or when in a location that may not have ideal conditions. In addition, this mode allows the user to weigh moving objects such as animals, insects or other moving specimens. Dynamic weighing averages out weight readings over a period of time and displays the results until cleared.
Totalization
This mode allows the user to sum a series of samples weights that can be greater than the capacity of the balance. Totalization is helpful when adding the masses of several samples together without the need for a calculator.
High Point
High Point can be used when analysing batches or lots, or for quality chechking of random samples. When in HIgh Point mode, the balance will save only the highest weight value from a series of weighings.
Connectivity
Discovery comes with an included RS232 interface and provides full GLP/GMP date output

Specifications
Model
DV114C
DV214C
DV314C
DV215CD
Capacity (g)
110
210
310
81* /210
Readability (mg)
0.1
0.1
0.1
0.01* /0.1
Repeatability (Std.dev) (mg)
0.1
0.1
0.2
0.02* /0.1
Linearity (mg)
±0.2
±0.5
±0.03* /0.2
Weighing UnitsApplication Modes
Miligramm, Gram, Carat, Ounce, Ounce Troy, Grain, Pennyweight, Momme, Hong Kong Tael, Singapore Tael, Taiwan Tael, Custom
Application Modes
Weighing, Parts Counting with Automatic Sample Recalibration, Percent Weighing, Checkweighing, Animal/Dynamic Weighing, Gross/Net/Tare Weighing, Totalization, High Point, Density, Statistics, Pipette Calibration
Features
Selectable Environmental Filtrers, RS232 Interface with full GLP/GMP Protocol, Easy to Clean Stainless Steel Platform, Windring and Glass & Steel Construction, Protective In-Use Cover, Integral Weigh Below Hook, Easy to Use Keypad, Up-Front Level Indicator
Tare Range
To Capacity by Subtraction
Stabilization Time (s)
4
8
12/5
Sensitivity Drift (10 -30ºC)
±2ppm/ºC
Operating Temp Range
10º to 40º C
Calibration
Automatic internal, Pushbutton internal, Manual external
Power Requirements
External Adapter, 100-120VAC 150mA, 220-240VAC 100mA, 50/60 Hz Plug configuration for US, Euro, UK, Japan & Australian
Display Type
2-line Alphanumeric Backlit LCD Display
Display Size (in/cm)
4 x 1 / 10 x 2.5
Pan Size (diameter) (in/cm)
3.5 / 9
Height above pan (in/cm)
9.5 / 24
Dimension WxHxD (in/cm)
7.9 x 11.8 x 18 / 20 x 30 x 45.7
Net Weight (lb/kg)
22.5 / 10.2
* Fine Range

Other Standard Features and Equipment
Stability indicator, mechanical and software overload/underload protection, AC adapter, user selectable span calibration points, auto tare, auto shut-off, user selectable printing options, user selectable communications settings, user selectable data print options, user definable project and user ID's, software reset menu, softwarelockout menu
Approvals
CE, FCC, CULUS, CCSAUS, NRTL, OIML
Accessories Ohaus Number
Impact printer, 42 column SF42
RS232 cable, SF42 printer 80500571
TAL Software WinWedge SW12W
SF42 printer paper (5 pack) 12101511
SF42 printer ribbon 12101512
RS232 cable, IBM 9 pin 80500525
RS232 cable, IBM 25 pin 80500524
Density determination kit 77402-00
Storage Cover 9773-79
Security device 77401-00
100g Calibration Mass, ASTM Class1 49015-11
200g Calibration Mass, ASTM Class1 49025-11

Industry Leading Quality and Support
All Ohaus Discovery balances are manufactured under an ISO 9001:2000 Registered Quality Management Ststem. OUr rugged construction and stringent quality control have been hallmarks of all Ohaus products for nearly a century.