User Guide

ANALOG OUTPUT

All models pH 502XY1,pH 502XY3, mV 602XY1 and mV

602XY3 are provided with the analog output feature.

The output is isolated and can be a voltage or a current.

With the recorder, simply connect the common port to the

ground output and the second port to

the current output or voltage output

(depending on which parameter is be-

ing used) as depicted aside.

The type (voltage or current) and the

range of the output analog signal is selectable through the

jumpers on the power board.

Configurations of the switch are as follows:

Output Switch 1 Switch 2 Switch 3 Switch 4

0-5 VDC, 1-5 VDC OFF ON – – – –

0-10 VDC ON OFF – – – –

0-20 mA, 4-20 mA – – – – ON – –

0-1 mA – – – – OFF – –

Choice between different ranges with the same configura-

tion (for example 0-20 mA and 4-20 mA) is achieved via

software by entering the setup mode and selecting code

40 (see Setup Mode section for exact procedure).

Factory default is switches 1 and 3 closed (ON) and switches

2 and 4 open (OFF), i.e. 0-20 mA, 4-20 mA and 0-10

VDC.

In any case, contact the nearest Hanna Customer Service

Center for changing of the default configuration.

By default the minimum and maximum values of analog

output correspond to the minimum and maximum of the

range of the meter. For example, for the pH 502 series with a

selected analog output of 4-20 mA, the default values are

0.00 and 14.00 pH corresponding to 4 and 20 mA, respec-

tively.

These values can be changed by the user to have the analog