Hanna Instruments HI 9910 User Manual

Instruction Manual

HI 9910 - HI 9911

HI 9920

Wall Mounted

pH & ORP

Controllers

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Compliance with the CE Directives

These Instruments are in

Dear Customer, Thank you for choosing a Hanna Product. Please read this instruction manual carefully before using the

instrument. This manual will provide you with 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 tech@hannainst.com.

These instruments are in compliance with the directives

EN 50081-1, 50082-1 and 61010-1.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

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

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

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

FUNCTIONAL DIAGRAM HI 9910 ............................................... 6

FUNCTIONAL DIAGRAM HI 9911 ............................................... 9

FUNCTIONAL DIAGRAM HI 9920 ............................................. 12

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

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

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

ORP CALIBRATION ................................................................. 22

ADJUSTEMENT OF SETPOINT(S) ............................................... 23

PROPORTIONAL CONTROL ...................................................... 26

OVERDOSAGE TIMER............................................................... 29

pH VALUES AT VARIOUS TEMPERATURES................................. 30

REDOX MEASUREMENT (HI 9920)............................................ 31

ELECTRODE CONDITIONING & MAINTENANCE............................. 33

SUGGESTED INSTALLATIONS FOR pH/ORP ELECTRODES.............. 34

ACCESSORIES......................................................................... 35

WARRANTY ............................................................................ 37

OTHER PRODUCTS FROM HANNA ............................................ 38

CE DECLARATION OF CONFORMITY ........................................... 39

ISO 9000 Certified Company since 1992

2

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY 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

GENERAL DESCRIPTIONGENERAL DESCRIPTION

Hanna's wall-mounted pH and ORP controllers control are designed to meet a variety of process control requirements.

The electrodes can be installed quickly and easily. Simply plug the universal BNC connector into the socket and twist it into a secured position. Accurate measurements are displayed on a large LCD.

The controllers come equipped with relays operating at a maximum of 2A (240V).

The Hanna 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 electrical device.

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.

In order to avoid electrical noise and interference all models provide for a ground probe (differential input).

These controllers are housed in a rugged, modular, fiber-reinforced ABS housing.

3

with proportional

All models can be wired to work with 110/115V or 220/240V 50/60 Hz power supplies.

The models covered in this manual are: HI 9910 a single setpoint pH controller

HI 9911 a dual setpoint pH controller, specifically designed for

all those applications in which the pH value intends to oscillate both up and down

HI 9920 ORP controller, designed for numerous industrial

applications, but in particular for swimming pools and drinking water sanitation

MECHANICAL LAYOUTSMECHANICAL LAYOUTS

MECHANICAL LAYOUTS

MECHANICAL LAYOUTSMECHANICAL LAYOUTS

BNC CONNECTOR FOR ELECTRODE

4 mm BANANA SOCKET FOR GROUND PROBE

WIRING ACCESS

PORTS

Fig. 1

Figure 1: displays the connector for electrode and the wiring access ports.

LCD DISPLAY

CALIBRATION

TRIMMERS

CONTROL KNOBS

AND SWICHES

pH

ALARM

30

20 10 0

-10

0.511.5

0pH2.0

COARSE

ON

ACID

OFF

ALK

40

50

60

MTC

70 80

PROPORTIONAL SETTINGS

SET POINT

°C

45

090

SECONDS

FINE SLOPEOFFSET

SET

READ

HI 9910

2.557.5

1

MINUTES

ALARM DOSINGTIME

pH

ALARM

1

0

2

TEMP.COMP. MTC ATC

4/20 0/20 mA OUTPUT

ALARM

SET pH

DOSING

10

LINE

OUTPUT CONTACTS

TEMP.COMPENSATION

SWITCH

ALARM CONTACTS

DOSING TERMINALS

POWER SUPPLY

TERMINALS

Fig. 2

Figure 2 illustrates the controls and terminals on the HI 9910 pH controller. Layouts vary from model to model based on their features and capabilities.

4

3.8“

96.9 mm 1“

25 mm

75 mm

Fig. 3

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

227.8 mm 9“

3“

7.4“

188.6 mm

221.8 mm

8.7“

6.9“

174.8 mm

Fig. 4

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

5

FUNCTIONAL DIAGRAM HI 9910FUNCTIONAL DIAGRAM HI 9910

FUNCTIONAL DIAGRAM HI 9910

FUNCTIONAL DIAGRAM HI 9910FUNCTIONAL DIAGRAM HI 9910

SINGLE SETPOINT, SINGLE SETPOINT,

SINGLE SETPOINT,

SINGLE SETPOINT, SINGLE SETPOINT,

pp

H CONTROLLERH CONTROLLER

p

H CONTROLLER

pp

H CONTROLLERH CONTROLLER

FRONT PANEL

13

1 2 3 4 5 6 7 8 9

10

11

12

pH

ALARM

30

40

20 10 0

-10

0.511.5

0pH2.0

PROPORTIONAL SETTINGS

ON

OFF

50

SET POINT

COARSE

ACID

ALK

60

MTC

70

°C

80

45

090

SECONDS

HI 9910

FINE SLOPEOFFSET

SET

READ

2.557.5

ALARM DOSINGTIME

DOSING

1

MINUTES

pH

ALARM

1

0

2

TEMP.COMP. MTC ATC

4/20 0/20 mA OUTPUT

ALARM

SET pH

10

LINE

23

Left panel

1. Liquid Crystal Display

2. Slope calibration trimmer

3. Fine setpoint trimmer

4. Coarse setpoint trimmer

5. Offset calibration trimmer

6. Dosing LED visual signal

7. READ for actual measurement and SET for setpoint adjustment

8. Acid or Alkaline Dosage selection

9. Alarm LED and switch to disable the alarm

10. Graded dial for Manual Temperature Compensation

11. Overdosage timer

12. Proportional pH band and time cycle settings

14

15

16

17 18

19

20

21

22

Right panel

13. pH alarm setting from 0 to 2 pH

14. Short the terminals if a ground probe is not in use, or connect the ground probe wire to the Matching Pin terminal

15. Three-wire Pt 100 plus a shield protection

6

16. Recorder output contacts

17. Automatic or Manual Temperature Compensation switch

18. 0 to 20 or 4 to 20 mA isolated output switch

19. Triple contact alarm in a Normally Closed (NC) or a Normally Open (NO) position.

20. Powered dosage terminals (Relay)

21. 110/115V or 220/240V power configuration

22. Incoming power terminals

23. Fuses

BOTTOM VIEW

24

25

24. Female BNC socket for combination pH electrode

25. 4-mm Banana socket for ground probe

Unplug the instrument from the power supply before wiring and replacing the fuses.

7

Specifications HI 9910 RANGE 0.00 to 14.00 pH

RESOLUTION 0.01 pH ACCURACY ±0.02 pH

(@20°C/68°F) TYPICAL EMC ±0.1 pH

DEVIATION mA OUTPUT User-selectable 0 to 20 mA or 4 to 20 mA

CALIBRATION Through "OFFSET" and "SLOPE" trimmers

TEMPERATURE COMPENSATION

SETPOINT From 0.00 to 14.00 pH with "COARSE" and "FINE" RANGE trimmers with "ACID" or "ALK" (alkaline) selection

PROPORTIONAL pH is user adjustable from 0.0 to 2.0 and CONTROL time cycle from 0 to 90 seconds

ALARM CONTACT

DOSING TERMINALS Relay terminals (115 to 240V, Max.2A,1,000,000

strokes) are activated when pH exceeds the setpoint with “ACID” dosage or falls below the setpoint with “ALK” selection (Alkaline dosage)

POWER SUPPLY 220/240V or110/115V at 50/60Hz

ENVIRONMENT -10 to 50 °C (14 to 122 °F)

WEIGHT 1.6 Kg (3.5 lb.) ENCLOSURE 181 x 221 x 142mm (7.1 x 8.7 x 5.6")

CASE MATERIAL Fiber-reinforced, self-extinguishing ABS

over the 0-14 pH range with isolated output

(Max. ±1.5 pH for offset and 80% to 110% for slope)

Manual from -10 to 80 °C (14 to 176 °F) or automatic with a 3-wire Pt 100 probe from 0 to 50 °C (32 to 122 °F)

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 varies by more than user-selectable interval (0 to 2 pH) from setpoint or due to overdosage

max. 95% RH non-condensing

8

FUNCTIONAL DIAGRAM HI 9911FUNCTIONAL DIAGRAM HI 9911

FUNCTIONAL DIAGRAM HI 9911

FUNCTIONAL DIAGRAM HI 9911FUNCTIONAL DIAGRAM HI 9911

DUAL SETPOINT, DUAL SETPOINT,

DUAL SETPOINT,

DUAL SETPOINT, DUAL SETPOINT,

pHpH

CONTROLLER CONTROLLER

pH

CONTROLLER

pHpH

CONTROLLER CONTROLLER

FRONT PANEL

13

1 2 3 4 5 6 7 8 9

10

11

12

pH

ALARM

30

20

10

0

-10 80

1

0.5

0

pH

PROPORTIONAL SETTINGS

ON

OFF

40

50

60 70

1.5

2.0 0

HI 9911

ACID SET

COARSE FINE SLOPEOFFSET

ALKALINE SET

SET

ACID

READ

ALK

2.557.5

MTC

°C

1

45

2.557.5

90

1

SECONDS

MINUTES

TIMER

pH

ALARM

1

0

2

TEMP.COMP. MTC ATC

4/20 0/20 mA OUTPUT

ALARM

ACID

SET ACID

FEED ALK

ALK

SET ALK

10

ACID

10

LINE

23

Left panel

1. Liquid Crystal Display

2. Slope calibration trimmer

3. Fine setpoint trimmers for acid and alkaline feed

4. Coarse setpoint trimmers for acid and alkaline feed

5. Offset calibration trimmer

6. Dosing LED signals for acid and alkaline feed

7. READ for actual measurement and SET for setpoint adjustment

8. Acid or Alkaline selection for setpoint

9. Alarm LED and switch to disable the alarm

10. Graded dial for Manual Temperature Compensation

11. Two independent overdosage timers

12. Proportional pH band and time cycle settings

14

15

16

17 18

19

20

21

22

Right panel

13. pH alarm setting from 0 to 2 pH

14. Short the terminals if a ground probe is not in use, or connect the ground probe wire to the Matching Pin terminal

15. Three-wire Pt 100 plus a shield protection

16. Recorder output contacts

17. Automatic or Manual Temperature Compensation switch

9

18. 0 to 20 or 4 to 20 mA isolated output switch

19. Triple contact alarm in a Normally Closed (NC) or a Normally Open (NO) position.

20. Powered dosage terminals (Relays)

21. 110/115V or 220/240V power configuration

22. Incoming power terminals

23. Fuses

BOTTOM CONNECTION

24

25

24. Female BNC socket for combination pH electrode

25. 4-mm Banana socket for ground probe

Unplug the instrument from the power supply before wiring and replacing the fuses.

10

Specifications HI 9911

RANGE 0.00 to 14.00 pH RESOLUTION 0.01 pH

ACCURACY ±0.02 pH (@20°C/68°F)

TYPICAL EMC ±0.1 pH DEVIATION

mA OUTPUT User-selectable 0 to 20 mA or 4 to 20 mA

CALIBRATION Through "OFFSET" and "SLOPE" trimmers

TEMPERATURE COMPENSATION

SETPOINT RANGE

PROPORTIONAL pH is user adjustable from 0.0 to 2.0 and CONTROL time cycle from 0 to 90 seconds

ALARM CONTACT

DOSING TERMINALS Two sets of independent relay terminals (115 to 240V,

Max.2A, 1,000,000 strokes) are activated whenever pH exceeds the “ACID” setpoint or falls below the “ALK” setpoint (Alkaline dosage)

POWER SUPPLY 220/240V or110/115V at 50/60Hz ENVIRONMENT -10 to 50 °C (14 to 122 °F)

WEIGHT 1.6 Kg (3.5 lb.) ENCLOSURE 181 x 221 x 142mm (7.1 x 8.7 x 5.6") CASE MATERIAL Fiber-reinforced, self-extinguishing ABS

over the 0-14 pH range with isolated output

(Max. ±1.5 pH for offset and 80% to 110% for slope)

Manual from -10 to 80 °C (14 to 176 °F) or automatic with 3-wire Pt 100 probe from 0 to 50 °C (32 to 122 °F)

From 0.00 to 14.00 pH with 2 trimmers: "COARSE" for approx. regulation, "FINE" for fine tuning.

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 varies by more than user-selectable interval (0 to 2 pH) from setpoint or due to overdosage

max. 95% RH non-condensing

11

FUNCTIONAL DIAGRAM HI 9920FUNCTIONAL DIAGRAM HI 9920

FUNCTIONAL DIAGRAM HI 9920

FUNCTIONAL DIAGRAM HI 9920FUNCTIONAL DIAGRAM HI 9920

ORP CONTROLLER ORP CONTROLLER

ORP CONTROLLER

ORP CONTROLLER ORP CONTROLLER

FRONT PANEL

13

1

3 4 5

ORP

6 7 8 9

11

12

mV

ALARM

50

0

mV PROPORTIONAL SETTINGS

ON

OFF

150

200

HI 9920

SET POINT

COARSE FINECAL

SET

OXID

RED

DOSING

READ

45100

2.557.5

1

0

90

MINUTES

SECONDS

TIMER

mV

ALARM

100

0

200

mA OUTPUT 4/20 0/20

ALARM

SET mV

10

LINE

Left panel

1. Liquid Crystal Display

3. Fine setpoint trimmer

4. Coarse setpoint trimmer

5. Calibration trimmer

6. Dosing LED visual signal

7. READ for actual measurement and SET for setpoint adjustment

8. Oxidization or Reduction Dosage selection

9. Alarm LED and switch to disable the alarm

11. Overdosage timer

12. Proportional ORP band and time cycle settings

14

16

18

19

20

21

22

23

Right panel

13. ORP alarm setting from 0 to 200 mV

14. Short the terminals if a ground probe is not in use, or connect the ground probe wire to the Matching Pin terminal

16. Recorder output contacts

18. 0 to 20 or 4 to 20 mA isolated output switch

19. Triple contact alarm in a normally-closed (NC) or a normally open (NO) position.

12