JENCO 3173 Operation Manual - page 12
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
µS 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