Hanna Instruments HI 9923 Manuale utente

Instruction Manual

http://www.hannainst.com TheseInstrumentsarein

Compliancewith theCE Directives

ALARM

LINE

SETEC

SETpH

0SECONDS

mS2.0 0

TIMER

MINUTES

PROPORTIONAL SETTINGS

0SECONDS

pH 2.0 0

TIMER

MINUTES

PROPORTIONAL SETTINGS

SLOPE CAL

ALARM

OFF

0.5 1.5

SET

FERT

OFFSET SLOPEALARM

OFF

0.5 1.5

SET

ACID

ALA

HI 991

110

2.5 57.5

110

2.5 57.5

ALA

FEE

ACID

ALK

ALARM

ZEROCAL

HI 9913 - HI 9923

HI 9935

Wall Mounted Dual

Conductivity/TDS &

pH Controllers

ISO 9000 Certified

Company since 1992

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

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.

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

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

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

FUNCTIONAL DIAGRAM HI 9913..................................................6

FUNCTIONAL DIAGRAM HI 9923..................................................9

FUNCTIONAL DIAGRAM HI 9935................................................12

CONNECTIONS & WIRING ..........................................................14

NORMAL OPERATION & MEASUREMENT .....................................19

pH CALIBRATION.......................................................................20

CONDUCTIVITY/TDSCALIBRATION................................................21

ADJUSTMENT OF SETPOINT(S) ................................................... 23

PROPORTIONAL CONTROL.......................................................... 24

CONDUCTIVITY DEAD BAND (HI 9923)........................................26

OVERDOSAGETIMERS ................................................................26

pH VALUES AT VARIOUS TEMPERATURES...................................27

pH ELECTRODE CONDITIONING & MAINTENANCE.........................28

CONDUCTIVITY/TDS PROBE CLEANING & MAINTENANCE...............29

SUGGESTED INSTALLATIONS FOR pH ELECTRODE ........................30

SUGGESTED INSTALLATIONS FOR EC/TDS PROBE ........................31

ACCESSORIES.............................................................................33

WARRANTY ................................................................................34

CE DECLARATION OF CONFORMITY.............................................. 35

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

Remove the instrument from the packing material and examine it

carefully to make sure that no damage has occurred during ship-

ping. 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.

Hanna's wall-mounted conductivity/TDS and pH controllers are

designed to meet a variety of process control requirements, especially

those in horticultural, hydroponics and agricultural applications on

the one hand and boilers and cooling towers on the other.

All controllers provide for two separate relays, one for pH and another

for Conductivity/TDS. HI 9913 and HI 9935 also come with propor-

tional control to save on use of chemicals and fertilizers.

All models operate with the optional Hanna 4-ring probes to provide

a linear and repeatable 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 EC/TDS probes incorporate a temperature sensor and the control-

lerswillautomaticallycompensate for the temperature effect. Accurate

measurements are displayed on a large LCD.

Similarly, the pH electrode can be installed quickly and easily. Simply

plug the universal BNC connector into the socket and twist it into a

secured position. In order to avoid electrical noise and interference,

the pH circuitry also provides for a ground probe (differential input).

ALARM

0SECONDS

mS 2.0 0

TIMER

MINUTES

PROPORTIONAL SETTINGS

0SECONDS

pH 2.0 0

TIMER

MINUTES

PROPORTIONAL SETTINGS

SLOPE CAL

ALARM

OFF

0.5 1.5

SET

FERT

OFFSET SLOPE ALARM

OFF

0.5 1.5

SET

ACID

ALARM

HI 9913

110

2.5 57.5

110

2.5 57.5

ALARM

FEED

SET pH

SET EC

ALARM

LINE

ACID

ALK

LCD DISPLAY

CALIBRATION

TRIMMERS

CONTROL KNOBS

AND SWICHES

DOSING TERMINALS

POWER SUPPLY

TERMINALS

ALARM CONTACTS

MATCHING PIN

ZERO CAL

Fig. 2

Figure 2 illustrates the controls and terminals.

MECHANICAL LAYOUTSMECHANICAL LAYOUTS

MECHANICAL LAYOUTS

BNC CONNECTOR

MATCHING PIN FOR GROUND PROBE

DIN CONNECTOR

WIRING ACCESS

PORTS

Fig. 1

The controllers come equipped with relays operating at a maximum of

2A (240V).

They 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 electrical device.

Thecontrollers are 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.

Figure 1 illustrates the connector for pH electrode, matching pin

connection, conductivity/TDS probe and the wiring access ports.

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.

FUNCTIONAL DIAGRAM HI 9913FUNCTIONAL DIAGRAM HI 9913

FUNCTIONAL DIAGRAM HI 9913

ALARM

0SECONDS

mS 2.0 0

TIMER

MINUTES

PROPORTIONAL SETTINGS

0SECONDS

pH 2.0 0

TIMER

MINUTES

PROPORTIONAL SETTINGS

SLOPE CAL

ALARM

OFF

0.5 1.5

SET

FERT

OFFSET SLOPE ALARM

OFF

0.5 1.5

SET

ACID

ALARM

HI 9913

110

2.5 57.5

110

2.5 57.5

ALARM

FEED

SET pH

SET EC

ALARM

LINE

ACID

ALK

ZERO CAL

FRONTPANEL

Left panel

1. Alarm LED signal for pH

2. Liquid Crystal Display for pH and Conductivity (EC)

3. Acid feed LED and dial to adjust the pH setpoint

4. Selection switch for Acid or Alkaline dosage

5. Alarm disable switch for pH

6. Slope calibration trimmer for pH

7. Offset calibration trimmer for pH

8. Proportional pH band and time cycle settings

9. Two independent overdosage timers

10. Alarm LED signal for Conductivity (EC)

11. Fertilizer feed LED and dial to adjust the Conductivity setpoint

12. Zero calibration trimmer for Conductivity (EC)

13. Slope calibration trimmer for Conductivity (EC)

14. Proportional Conductivity band and time cycle settings

16. Alarm disable switch for Conductivity (EC)

Right panel

17. pH alarm setting from 0.0 to 2.0 pH

18. Short the terminals if a pH ground probe is not in use, or

connect the ground probe wire to the Matching Pin terminal

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

Unplug the instrument from the power supply before

wiring or replacing the fuses.

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

Open (NO) position.

21. Powered dosage terminals (Relay) for pH correction

22. Powered dosage terminals (Relay) for EC correction

23. 110/115V or 220/240V power configuration

24. Incoming power terminals

25. Fuses

BOTTOM VIEW

26. Female BNC connector for a combination pH electrode

27. 4-mm Banana socket for the pH ground probe

28. Female DIN connector for Conductivity probe

Specifications HI9913

RANGE 0.00to 14.00pH and0.00 to10.00 mS/cm(EC)

RESOLUTION 0.01pHand 0.01 mS/cm

ACCURACY ±0.02pH and ±2%F. S.

(@20°C/68°F)

TYPICALEMC ±0.1 pH and ±2% F. S.

DEVIATION

CALIBRATION

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

SETPOINTRANGE From 4.0 to 7.0 pH and 1.0 to 4.0 mS/cm (EC)

PROPORTIONAL

CONTROL

ALARM

CONTACT

POWER SUPPLY 220/240Vor 110/115Vat50/60Hz

DOSING

TERMINALS

ENVIRONMENT -10 to 50°C (14 to 122°F)

max. 95% RH non-condensing

Through "OFFSET" and "SLOPE" trimmers for pH, and

“ZERO CAL” and “SLOPE CAL” for Conductivity (EC)

Two independent controls: pH from 0.0 to 2.0 and

Conductivity (EC) from 0.0 to 2.0 mS/cm with two

separate time cycles from 0 to 90 seconds

Terminals 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 pH falls below the setpoint by the user-

selectable interval (0.0 to 2.0 pH), or conductivity

exceeds the setpoint by more than the user-selectable

interval (0 to 2.0 mS/cm) or due to overdosage

Two sets of independent terminals (115 to 240V,

Max.2A, 1,000,000 strokes) are activated whenever

pH exceeds the pH setpoint and/or conductivity falls

below the EC setpoint

PROBE Any combination pH electrode with a universal BNC

connector and Hanna Conductivity 4-ring

potentiometric probe with built-in temperature sensor

and DIN connector (optional)

FUNCTIONAL DIAGRAM HI 9923FUNCTIONAL DIAGRAM HI 9923

FUNCTIONAL DIAGRAM HI 9923

0.50

m TIMER

MINUTES

510

TIMER

MINUTES

SLOPE CAL

AUTO

MANUAL

SET

OFFSET SLOPE

AUTO

MANUAL

SET

ALK

ALARM

HI 9923

190

ALARM

DEAD BAND

FEED

7.5

BLEED

SET pH

SET EC

ALARM

LINE

ZERO CAL

ALARM

FRONTPANEL

Left panel

1. Alarm LED signal for pH

2. Liquid Crystal Display for pH and Conductivity

3. Alkaline feed LED and dial to adjust the pH setpoint

5. Alarm disable switch for pH

6. Slope calibration trimmer for pH

7. Offset calibration trimmer for pH

9. Two independent overdosage timers

10. Alarm LED signal for Conductivity

11. Bleed LED and dial to adjust the Conductivity setpoint

12. Zero calibration trimmer for Conductivity

13. Slope calibration trimmer for Conductivity

15. Conductivity Dead Band setting

16. Alarm disable switch for Conductivity

Right panel

17. pH alarm setting from 0.0 to 2.0 pH

18. Short the terminals if a pH ground probe is not in use, or

connect the ground probe wire to the Matching Pin terminal

19. Conductivity alarm setting from 0 to 2.0 mS/cm

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

Open (NO) position.

21. Powered dosage terminals (Relay) for pH correction

22. Powered dosage terminals (Relay) for Conductivity correction

23. 110/115V or 220/240V power configuration

24. Incoming power terminals

25. Fuses

BOTTOM VIEW

26. Female BNC connector for a combination pH electrode

27. 4-mm Banana socket for the pH ground probe

28. Female DIN connector for conductivity probe

Unplug the instrument from the power supply before

wiring or replacing the fuses.

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