Ohaus VP413DCN Voyager Pro Balance with Moveable FineRange is a dual range
milligram balance. In the fine range when weighing samples from 0-100g
in capacity you'll have 1mg readability. Once the cumulative weight on
the weighing pan exceeds 100 gram the readability drops by a factor of ten or
0.01 gram readability for samples 100g-410g.
When you select the Ohaus Voyager milligram lab balance you get advance embedded
software including statistics, formulation, statistical QC, differential weighing,
density determination and more. Plus, all Voyager milligram balances come
standard with motorized internal calibration - AutoCal
Ohaus Voyager lab balances calculates the density for you - no calculator or
scratch paper needed. The embedded software allows the Ohaus Voyager balance
to store in memory the initial weight in air, then the weight of the object
submerged in the liquid (typically distilled water - 1.00 g/ml, but could be
glycerin - 1.26 g/ml, 91% isopropyl rubbing alcohol 0.81 g/ml). If you
don't understand specific gravity review this example of density
determination.
Performing density determination inside the draftshield requires the purchase
of Ohaus' optional density determination kit. You could also use the weigh
below hook and suspend the sample beneath the balance, but this is not recommended
on 0.1mg analytical balances since air turbulence typically interferes with
your weighing results.
Ohaus VP413DCN is 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 VP413DCN limitations.
The Ohaus VP413DCN weighing specs in the NTEP / Legal for Trade mode are 410g
x 0.01g.
One design issue you should be aware of with the Voyager Series 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
CPA423S Milligram Balance may be a better choice.
Voyager Pro is available in either four Analytical or 12 precision models and
you can see them all here.
Before you decide to purchase an Ohaus VP413DCN dual range milligram
balance we suggest you review the Sartorius ED623S.
Ohaus VP413DCN milligram balance only weighs up to 100 g x 1 mg in milligram range. The ED623S features a weighing capacity of 620 g x 0.001 g.
Ohaus VP413DCN balances are legal for trade and feature internal calibration. If you require a legal for trade milligram balance, then you may be better off buying the Ohaus VP413DCN balance instead. We
feel internal calibration is a nice feature but drives prices up significantly. Before you decide internal calibration is worth the money, please read why we beg to differ.
simplify
even the most complex laboratory measurements. Whether it’s
determining the difference between initial and residual weights or calculating
the density of solids and liquids, Voyager Pro eliminates the need for time
consuming manual calculations and data logging.
Standard
Features Include:
AutoCalTM
automatic internal calibration system
The most
Advanced application modes in the industry include: Statistics, Formulation,
Differential Weighing, Statistical Quality Control (SQC), Density Determination
and Pipette Calibration
Standard
application modes include: Percent Weighing, Animal Weighing, Check
Weighing, Filling, Parts Counting and Gross/Net/Tare Weighing
Applications
library to store and quickly recall past procedures
Brilliant
backlit high resolution dot matrix display with simple navigation windows
and menus to guide you through balance functions
User selectable
GLP/GMP outputs via RS232 to meet traceability requirements
User selectable
filter, stability indicator and auto - zero tracking for use in difficult
environments
Five operating
languages— English, Spanish, French, German, Italian
Weigh-below
hook for below-balance weighing applications
Protective
in-use cover and security bracket
Industry
leading warranty and support
Voyager
Pro Applications
Advanced
in applications but not in operation. With Voyager Pro’s dot
matrix display and innovative user interface, balance setup and use is effortless.
For superior weighing performance, Voyager Pro’s AutoCal™ feature
automatically calibrates the balance when it senses a temperature change
sufficient enough to affect weighing accuracy. For maximum accuracy,
the Voyager Pro Series features 4 analytical models with capacities up to
210g with a 0.1mg readability. The draftshield design provides optimum
draft protection from wind currents for superior balance stability and reproducibility
even in challenging environments.
Statistical
Quality Control (SQC)
The
SQC feature is extremely useful during various types of process filling
operations when it is desired to monitor and control the process to eliminate
under and over filling. Provisions are made in the balance to accommodate
the weight of various packaging methods. During operation, parameters
of the packaged product are set into the balance such as packaging weight,
acceptable weight limits and non-acceptable weight limits of the product.
These weight limits are identified as +Tl, +T2, NOMINAL and -TI, -T2.
As samples are weighed and stored in the balance, a trend analysis is developed
and displayed on the balance. Up to 25 samples in a batch with up
to ten batches are visible on a trend screen for quality control purposes.
Each batch of samples is shown on the display which indicates the maximum/minimum
standard deviation and mean values for each batch. An on going examination
of the relative deviation of the samples along with other statistical data
can be viewed and is stored. By observing the results of the VIEW
TRACE screen, you can effectively monitor the filling process operation.
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. Weighing, Animal Weighing, Check Weighing and Filling
application modes can also be linked to the Statistics mode to provide statistical
data.
Differential
Weighing
Differential
weighing stores tare and weight values so samples can be dried or processed
and the difference in weight be calculated. Up to 80 samples can be
stored. The balance has the capability to work with one or two different
containers or no container at all.
Pipette
Calibration
Pipette calibration checks the accuracy and precision values of pipettes
by weight analysis. An analytical balance is recommended for maximum
accuracy. The balance is capable of recording data from 3 to 30 samples
of each pipette tested. The density table for water is included and
if liquid is used for pipette calibration, Voyager Pro will accept the alternate
liquid’s density in g/cc at current room temperature. Since
all calculations are made within the balance, it is also required that you
know the atmospheric pressure which has to be entered.
Shown
above balance with $214 OPTIONAL 470007-010 Density Determination Kit
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 Voyager
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.
Select
from 4 different Analytical Balances to suit your lab application.