Hanna Instruments HI 504903 Instruction Manual Download Page 21

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nection. To connect the

HI504903

supervisor to PC use an

HI920010

cable. Plug the connectors, one to the supervi-

sor RS232 auxiliary connector (PC config port), and the other
one to a serial port of the PC.

REMOTE COMMUNICATION

This type of communication session takes place between the

HI504903

device and one remote PC with the

HI92140

application software installed, through a data call made by a
modem connected to the PC. The incoming call is answered
by the interface and then a seamless data connection will be
established between any connected instrument and remote
computer. In this way it is possible to monitor a meter even if
it is placed long far from the operator position.

Note

During remote communication, yellow LED for cellular status
(when available) blinks fast to indicate data call in progress.

Note

HI504903

will be able to establish a remote communica-

tion only if the used SIM card is enabled for data call. Please
contact the cellular phone network operator for active ser-
vices on the used SIM card.

No connection can be established towards an instrument not
configured on

HI504903

interface, even if electric wiring is

correctly performed between

HI504903

and the instrument

itself. Please refer to the

HI92140

on-line help for more

details.

Note

If mains power supply failure occurs on

HI504903

side while

a PC communication session is taking place,

HI504903

enters in power failure status (see “Power failure status” sec-
tion) and communication session is immediately aborted.
Moreover, in remote communication case cellular phone
hangs up and telephone line is released.

Note

While a PC communication session towards a remote com-
puter is taking place, devices connected to

HI504903

are

not polled. So if some new alarms occur meanwhile, no SMS
is sent by the phone interface. Configured alarm messages
are sent when the connection ends, if the correspondent alarm
is still active. Also information messages are temporarily sus-
pended.

PC COMMUNICATION

HI504903

interface can act as a gateway for a connection

through a remote computer. With this feature a seamless data
connection will be established between a computer and what-
ever instrument connected and previously correctly configured
on the

HI504903

interface through

HI504903SW

appli-

cation software (see “Interface configuration” section).
Through a PC communication session it is possible to down-
load on the PC all information, alarms and fault conditions
regarding all instruments connected to

HI504903

through

only one data communication link towards

HI504903

in-

terface (no need to perform as many data links as many
instruments have to be queried). Actually, once data call is in
progress, the user can select with which instrument (con-
nected to the interface) he wants to communicate and switch
among the various instruments at any time.
There are two ways for establishing a PC communication
session: the “local” one with a serial cable, and the “remote”
one through a modem connected to the PC (see below).
Data transmission to the PC from dataloggers connected to
the interface (both local and remote) is possible with the

HI92140

Windows

compatible application software offered

by Hanna Instruments.
The user-friendly

HI92140

offers a variety of features such

as logging selected variables or plotting the recorded data. It
is also provided with an on-line help feature to support the
user through the operation.

HI92140

makes it possible to use the powerful means of the

most diffuses spreadsheet programs (Excel

, Lotus 1-2-3

, etc.).

Simply run the favorite spread sheet and open the file down-
loaded by

HI92140

. It is then possible to elaborate the data

with the selected software (e.g. graphics, statistical analysis).
To install

HI92140

are required only a 3.5” drive and a few

minutes to follow the instructions printed on the disk label.
Contact your Hanna Dealer to request a copy.