A Publication
for Users of
Vernier Software Products
In This Issue:
Vernier LabPro
CBL 2™
O2 Sensor
Water Quality
DCU Contest
Lab View
Online store
Innovative Uses
Bits and Bytes
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The Caliper
A Publication for Users of Vernier Products
CBL
2™
Our new LabPro interface and the TI CBL 2 were jointly developed by Vernier Software
and Texas Instruments. As you would expect, there are similarities between
LabPro and CBL2, including the case, buttons, cradle, built-in user
program for TI Graphing Calculators, Flash memory, and a calculator link cable.
Of course there are differences, the biggest being that LabPro is designed for
use with either computers or calculators, while CBL2 is primarily a
calculator interface. If you are a calculator user, you may still want to choose
LabPro, since it has more ports, higher resolution, and offers more flexibility.
In order to decide whether to go with LabPro or CBL 2, you should be aware of
the similarities and differences. Here is a comparison:
| LabPro | CBL 2 | |
| Channels | 4 analog and 2 digital |
3 analog and 1 digital |
| Compatible Vernier analog sensors | All (for example, pH, |
All (for example, pH, |
| Compatible Vernier digital sensors | Motion(2),photo gate(2), radiation, rotary motion |
Motion(1), photogate (1), radiation, rotary motion |
| Analog output | Yes |
No |
| Maximum sample rate | 50,000 samples/second |
50,000 samples/second |
| Internal data storage | 12,000 points |
12,000 points |
| Resolution | 12 bit |
10 bit |
| Computer connections | Serial, USB, calculator link port |
calculator link port |
| Compatible calculators | TI-82/83/83 Plus/86/89/92/ |
TI-82/83/83 Plus/86/89/92/ |
| Built-in calculator program | Yes (DataMate) |
Yes (DataMate) |
| Stand-alone use | Yes |
Yes |
| Sensors included | Voltage |
Temperature, light (qualitative), voltage |
| Additional included items | computer cables (both serial and USB), AC power supply, calculator link cable, calculator cradle, and user’s manual |
Calculator link cable, calculator cradle, batteries, and user’s manual |
| Availability | March, 2000 |
March, 2000 |
| Cost | $220 |
$166 |
TI-Presenter™
Many teachers who use a CBL also use a TI ViewScreen™. A ViewScreen consists of
a special graphing calculator that connects to a LCD panel. The
panel fits on an overhead projector, which projects the calculator
image. Now you have another option. The TI-Presenter allows the
teacher to connect a ViewScreen calculator to a TV or audio-visual
projection system. The TI-Presenter does not come with a ViewScreen
calculator. 
Teachers can use ViewScreen calculators they already
have or purchase one separately. Additional information about the
Presenter can be found on the TI web site, www.ti.com/calc/presenter.
(The Presenter will be available in December of 1999.) Order Code
TI-PRE, $235.
TI-GRAPH LINK™ for Windows
TI
has developed an inexpensive Graph Link cable for Windows 95/98 and NT
users. This cable is black and smaller than the gray Graph Link cable.
(Please note that Windows 3.x and Macintosh users still need to use the gray
TI-GRAPH LINK cable.) Graphical Analysis does not yet support the new Black Link Cable.
info@vernier.com