User Guide

RS 485 COMMUNICATION

HI 700222 and HI 710222 are provided with an RS485

port.

RS485 standard is a digital transmission method that allows

long lines connections. Its current-loop system makes this

standard suitable for data transmission in noisy environments.

Data transmission from the instrument to the PC is possible

with the HI 92500 Windows

compatible application soft-

ware offered by Hanna Instruments.

The user-friendly HI 92500 offers a variety of features such

as logging selected variables or plotting the recorded data. It

also has an on-line help feature to support you throughout

the operation.

HI 92500 makes it possible for you to use the powerful means

of the most diffused spreadsheet programs (Excel

, Lotus

1-2-3

etc.). Simply run your favorite spread sheet and open

the file downloaded by HI 92500. It is then possible to elabo-

rate the data with your software (e.g. graphics, statistical

analysis).

To install HI 92500 you need a 3.5" drive and few minutes

to follow the instructions conveniently printed on the disk’s

label.

Contact your Hanna Dealer to request a copy.

SPECIFICATIONS

The RS485 standard is implemented in with the following char-

acteristics:

Data rate: up to 9600 bps

Communication: Bi-directional Half-Duplex

Line length: up to 1.2 Km typ. with 24AWG cable

Loads: up to 32 typ.

Internal termination: none

Excel

Lotus 1-2-3

Windows

registered Trademark of “Microsoft Co.”