User Guide

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and exam-

ine it carefully to make sure that no damage has occurred

during shipping. If there is any noticeable damage, notify

your Dealer or the nearest Hanna Customer Service Center

immediately.

Note Save all packing materials until you are sure that the instru-

ment functions correctly. Any damaged or defective items must

be returned in their original packing materials together with

the supplied accessories.

GENERAL DESCRIPTION

HI 504910 acquires and transmits in a digital format to-

wards HI 504 controller, or a computer workstation, pH,

ORP and °C measurements.

The digital link allows to send additional information, espe-

cially regarding the pH, ORP and temperature probes.

MAIN FEATURES

• pH/ORP probe check.

• PT100 or PT1000 sensor with automatic recognition and

damage test.

• Setup procedure to configure general and measurement

related parameters. There are two separate sets of configu-

ration parameters, one for pH and one for ORP, thus no

loss of setting occurs when changing from pH to ORP and

vice versa.

• Calibration: usual pH calibration at 2 points, or quick single

point pH calibration through HI 504920 reference pH meter.

• Old probe check, dead probe check, last calibration data

internally recorded: calibration date and time, pH offset, pH

slope, number of calibration points and correspondent pH

values.

• Manual temperature compensation available (automati-

cally selected when a temperature input error occurs).

• Possibility of a remote connection to a computer worksta-

tion through an external modem.