Hanna-instruments HI 9931 Manuel d'utilisateur télécharger pdf (Page 4)

MECHANICAL LAYOUTSMECHANICAL LAYOUTS

MECHANICAL LAYOUTS

DIN connector

WIRING ACCESS

PORTS

ALARM

mA OUTPUT

4/20 0/20

SECONDS

1.6

TIMER

MINUTES

FINE

COARSE

PROPORTIONAL SETTINGS

ALARM

AUTO

MANUAL

SET

READ

FERT.

SET POINT

HI 9931

2.5

7.5

0.8

FEED

ALARM

LINE

SET EC

LCD DISPLAY

CALIBRATION

TRIMMERS

CONTROL KNOBS

AND SWICHES

OUTPUT CONTACTS

DOSING TERMINALS

POWER SUPPLY

TERMINALS

ALARM CONTACTS

RECORDER OUTPUT

SWITCH

SLOPE

CAL

ZERO

CAL

Fig. 2

Fig. 1

Figure 1 illustrates the connector for probe and the wiring access

ports.

Figure 2 illustrates the controls and terminals.

The recorder output terminals are isolated from the controller circuitry

to avoid any interference and are user-switchable between 0 to 20

mA or 4 to 20 mA.

The controller is housed in a rugged, modular, fiber-reinforced ABS

housing.

All models can be wired to work with 110/115V or 220/240V at 50/

60 Hz power supplies.

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Hanna-instruments HI 9931 Manuel d'utilisateur Page 4

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