Download Appendix A Specifications and Quick Starts

Specifications and Quick Starts
E3640A power supply command set is listed in Table
AA-2. SOURce is the root keyword of the command,
CURRent and VOLTage are second level keywords
and TRIGgered is a third level keyword. (Essential
letters are printed in UPPERcase, optional letters in
lowercase.) A colon (:) separates a command keyword
from a lower level keyword.
Table AA-2. The tree structure of the SOURce command
taken from the Agilent E3640A programmable power
supply command set. The tree of this command has three
levels; lower branches of the tree are indented for easy
identification.
[SOURce:]
CURRent {<current> |MIN|MAX|UP|DOWN}
CURRent? [MIN|MAX]
CURRent:
TRIGgered {<current> |MIN|MAX}
TRIGgered? {MIN|MAX}
VOLTage {<voltage> |MIN|MAX|UP|DOWN}
VOLTage? {MIN|MAX}
VOLTage:
TRIGgered {<voltage> |MIN|MAX}
TRIGgered? {MIN|MAX}
Legend: Square brackets [] indicate optional arguments, curly brackets {} indicate values or keywords.
Arrow brackets <> indicate an optional numerical
value. Vertical lines | mean “or”. These brackets are
not part of the command.
About the Quick Starts
The Quick Starts in the following sections were
designed to provide a quick introduction to the
instrument. It was intended that some of them would
be covered in labs or tutorials. For maximum
effectiveness you are strongly urged to work your
way through them before beginning a lab where the
instrument is featured.
The Ohaus Scout II Electronic Balance
General Description
In many labs today the mechanical balance has been
replaced with an electronic or digital balance. The
Ohaus Scout II series of electronic balances (Figure
AA-1) are good examples. They feature front panel
controls, simplified menu, automatic shut off, multiple weighing units, parts counting and a weigh below
hook. The model described here is number SR6010. It
has a 600g capacity and an RS-232 port.
There are two buttons on the front panel: “Zero On”
(right) and “Mode Off” (left). The “Zero On” button is
for turning the instrument on and for zeroing the unit
before a weighing operation. The “Mode Off” button
is for turning the instrument off and for stepping
through menu selections.
Accuracy
Claimed accuracies are: readability 0.1g, repeatability
0.1 g (standard deviation), linearity ±0.1 g.
Quick Start
To get a measurement from the balance do the
following:
•
Figure AA-1. The Ohaus series of electronic balance.
•
Assuming the instrument is OFF, press the “Zero
On” button momentarily to turn the instrument
ON. All segments will appear briefly on the LCD
display followed by a software revision number
(“2.0”) and then “00”.
Note the current weight unit printed at the right
hand edge of the display. If a different weight
unit is desired then press the “Mode Off” button
AA-3