Hanna Instruments HI 9931 Bedienungsanleitung

Instruction Manual

http://www.hannainst.com TheseInstrumentsarein

Compliancewith theCE Directives

ALARM

LINE

SET EC

0SECONDS

mS1.6 0

TIMER

MINUTES

FINESLOPE

CAL

COARSE

PROPORTIONALSETTINGS

ALARMAUTO

MANUAL

SET

READ

FERT.

SETPOINT

HI 9

2.5

0.8

FEED

ALARM

mAOUTPUT

4/200/20

ZERO

CAL

HI 9931 - HI 9934

Wall Mounted

Conductivity & TDS

Controllers

DearCustomer,

Thank you for choosing a Hanna Product.

Please read this instruction manual carefully before using the instru-

ment.This manual will provide youwith the necessary information for

a correct use of the instrument, as well as a more precise idea of its

versatility. If you need more technical information, do not hesitate to

e-mail us at [email protected].

These instruments are in compliance with the directives

EN50081-1,50082-1and61010-1.

ISO 9000 Certified

Company since 1992

PRELIMINARY EXAMINATION........................................................3

GENERAL DESCRIPTION ................................................................3

MECHANICAL LAYOUTS.................................................................4

FUNCTIONAL DIAGRAM HI 9931..................................................6

FUNCTIONAL DIAGRAM HI 9934..................................................9

CONNECTIONS & WIRING ..........................................................12

NORMAL OPERATION & MEASUREMENT .....................................15

CALIBRATION.............................................................................16

ADJUSTEMENT OF SETPOINT......................................................17

PROPORTIONAL CONTROL.......................................................... 18

OVERDOSAGETIMER ..................................................................20

PROBE CLEANING & MAINTENANCE ............................................20

SUGGESTED INSTALLATIONS FOR EC/TDS PROBES.......................21

ACCESSORIES.............................................................................23

WARRANTY ................................................................................25

OTHER PRODUCTS FROM HANNA...............................................26

CE DECLARATION OF CONFORMITY.............................................. 27

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it

carefully to make sure that no damage has occurred during shipping.

If there is any noticeable damage, notify your Dealer.

Note: Save all packing materials until you are sure that the

instrument functions correctly. Any defective item must be

returned in the original packaging together with the supplied

accessories.

IMPORTANT:

1. Read the instructions before using the instrument.

2. The instrument should be connected to a mains socket.

3. Never install the controller outdoors, in a wet or humid area or

under direct sun light. Nor install the controller where liquids may

be sprayed or poured on it.

4. The instrument’s main power line as well as the dosage and

alarm terminals are protected by separate 2A fuses. Use only 2A

fuses for replacement.

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

Hanna's wall-mounted conductivity and TDS controllers with

proportional control are designed to meet a variety of process control

requirements, especially those in horticultural, hydroponics and

agricultral applications.

The controllers operate with the optional Hanna 4-ring probes to

provide a linear and repeatble measurement. The conductivity/TDS

probes can be installed quickly and easily. Simply plug the DIN

connector into the socket and tighten the retainer ring.

The probes incorporate a tempertaure sensor and the contoller will

automatically compensate for the temperature effect. Accurate mea-

surements are displayed on a large LCD.

The controllers come equipped with relays operating at a maximum of

2A (240V).

The controllers incorporate a triple contact alarm system. When

activated, the alarm contacts will open or close, triggering the

mechanism of your choice, whether a buzzer, light or any other

electricaldevice.

MECHANICAL LAYOUTSMECHANICAL LAYOUTS

MECHANICAL LAYOUTS

DIN connector

WIRING ACCESS

PORTS

ALARM

mA OUTPUT

4/20 0/20

0SECONDS

mS 1.6 0

TIMER

MINUTES

FINE

COARSE

PROPORTIONAL SETTINGS

ALARM AUTO

MANUAL

SET

READ

FERT.

SET POINT

HI 9931

110

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.

3.8“

96.9 mm

25 mm

1“

75 mm

3“

Fig. 3

227.8 mm

9“

188.6 mm

7.4“

221.8 mm

8.7“

174.8 mm

6.9“

Fig. 4

Figure 3 is a dimensioned, bottom view of the wall mounted

controller. The modular design isolates the control circuitry from the

contacts making it possible to make the connections and then close

the compartment. Adjustments can then be made only in the control

area, without having to open the contacts compartment.

Figure 4 is a dimensioned front view of the wall mounted controller.

The molded, mounting holes in the corners provide for quick and

secure installation. No additional hardware is needed for mounting.

All electrical connections and controls are located on the front of the

instrument so that adjustment can be made without having to

remove the unit.

FRONTPANEL

FUNCTIONAL DIAGRAM HI 9931FUNCTIONAL DIAGRAM HI 9931

FUNCTIONAL DIAGRAM HI 9931

ALARM

mA OUTPUT

4/20 0/20

0SECONDS

mS 1.6 0

TIMER

MINUTES

FINE SLOPE

CAL

COARSE

PROPORTIONAL SETTINGS

ALARM AUTO

MANUAL

SET

READ

FERT.

SET POINT

HI 9931

110

2.5

7.5

0.8

FEED

ALARM

LINE

SET EC

ZERO

CAL

11 12

Left panel

1. Liquid Crystal Display

2. Slope calibration trimmer

3. Fine setpoint trimmer

4. Coarse setpoint trimmer

5. Zero calibration trimmer

6. Alarm LED warning signal

7. Alarm disable switch

8. READ for actual measurement and SET for setpoint

adjustment

9. Dosing LEDsignal

10. Proportional conductivity band setting

11. Proportional time cycle setting

12. Overdosage timer

Right panel

13. Conductivity alarm setting from 0 to 2.0 mS/cm (EC)

14. Recorder output contacts

15. 0 to 20 or 4 to 20 mA output selector

16. Triple contact alarm in a Normally Closed (NC) or a Normally

Open (NO) position.

Unplug the instrument from the power supply before

wiring or replacing the fuses.

17. Powered dosage terminals (Relay)

18. 110/115V or 220/240V power configuration

19. Incoming power terminals

20. Fuses

BOTTOM VIEW

21. Female DIN connector for conductivity probe

SETPOINTRANGE From 0to 10.00 mS/cm

Specifications HI9931

RANGE 0.00 to 10.00 mS/cm (EC)

RESOLUTION 0.01mS/cm

ACCURACY ±2%F. S.

(@20C/68 F)

TYPICALEMC ±2% F.S.

DEVIATION

PROPORTIONAL Conductivity from 0.0 to 1.6 mS/cm and

CONTROL time cycle from 0 to 90 seconds

ALARM

CONTACTS

DOSINGTERMINALS

PROBE (optional) 4-ring potentiometric with built-in temperature sensor

POWER SUPPLY 220/240Vor110/115V at50/60Hz

ENVIRONMENT -10 to 50°C (14 to 122°F)

max. 95% RH non-condensing

WEIGHT 1.6Kg (3.5 lb.)

ENCLOSURE 181x 221 x 142mm (7.1 x 8.7 x5.6")

CASE MATERIAL Fiber-reinforced, self-extinguishing ABS

Terminal can be configured as normally open or

normally closed (isolated output Max. 2A, Max. 240V,

resistive load, 1,000,000 strokes). The alarm is

activated if conductivity exceeds by more than the user-

selectable interval (0 to 2.0 mS/cm) from the setpoint

or due to overdosage

Relay (115 to 240V, Max.2A,1,000,000 strokes) is

activated whenever conductivity falls below the setpoint

CALIBRATION Through"ZERO CAL" and"SLOPE CAL" trimmers

FUNCTIONAL DIAGRAM HI 9934FUNCTIONAL DIAGRAM HI 9934

FUNCTIONAL DIAGRAM HI 9934

TDS

200

400

ALARM

mA OUTPUT

4/20 0/20

ppm

TIMER

MINUTES

FINE SLOPE

CAL

COARSE

PROPORTIONAL SETTINGS

AUTO

MANUAL

SET

READ

FERT.

SET POINT

110

2.5

7.5

FEED

ALARM

LINE

SET TDS

ZERO

CAL

11 12

0SECONDS

ppm 400 090

HI 9934

200

ppm

TDS

ALARM

FRONTPANEL

Left panel

1. Liquid Crystal Display

2. Slope calibration trimmer

3. Fine setpoint trimmer

4. Coarse setpoint trimmer

5. Zero calibration trimmer

6. Alarm LED warning signal

7. Alarm disable switch

8. READ for actual measurement and SET for setpoint

adjustment

9. Dosing LEDsignal

10. Proportional TDS band setting

11. Proportional time cycle setting

12. Overdosage timer

Right panel

13. TDS alarm setting from 0 to 400 ppm (mg/L)

14. Recorder output contacts

15. 0 to 20 or 4 to 20 mA output selector

16. Triple contact alarm in a Normally Closed (NC) or a Normally

Open (NO) position.

17. Powered dosage terminals (Relay)

18. 110/115V or 220/240V power configuration

19. Incoming power terminals

20. Fuses

BOTTOM VIEW

21. Female DIN connector for TDS probe

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