11
DB-9 CONNECTOR CABLE
Below is the wiring diagram showing the DB-9 connector wired to be compatible to the
RS-232C standard for TxD, RxD and Circuit Common.
Note
: The “Standard RS-232C” cable is a 25-Pin connector. The essential Circuit
Common and TxD and RxD are shown here adapted to the DB-9 connector.
DTE
DCE
Data Terminal Equipment
Data Communications Equipment
( Your computer or recorder, etc.) ( Your
Jenco
Meter.)
SOFTWARE
A demo program and the protocol are included in the accompanying CD. Using the demo,
you can easily track or recall data from the
Jenco
meter. Please read the protocol to
understand more about the procedure in detail. You may also choose to download from
our website a pre-programmed Windows
®
compatible program but you will be limited to
tracking and recalling data as preset in those programs.
PREPARING & STORAGE STANDARD SOLUTIONS
Suitable conductivity standards are available commercially or the user can prepare them
using research grade reagents.
Here are some standard solutions the user can prepare to calibrate the probe of the
Model
3173/3173R
.
1.Standard solution of
1413
µ
S
at 25
°
C
: Accurately weight out
0.746 grams
of research
grade dried Potassium Chloride (
KCl
). Dissolve it in
1000ml
of deionized water
2.Standard solution of
12.90 mS at 25
°
C
: Accurately weight out
7.4365 grams
of
research grade dried Potassium Chloride (
KCl
). Dissolve it in
1000ml
of deionized
water
Transmit Data! Pin 2
Receive Data? Pin 3
Circuit Common Pin 7
Pin 2 Receive Data?
Pin 3 Transmit Data !
Pin 7 Circuit Common
