Hanna Instruments HI 9931 Manuale utente
Instruction Manual
http://www.hannainst.com TheseInstrumentsarein
Compliancewith theCE Directives
ALARM
LINE
SET EC
0SECONDS
mS1.6 0
TIMER
MINUTES
90
45
FINESLOPE
CAL
COARSE
PROPORTIONALSETTINGS
ALARMAUTO
MANUAL
SET
READ
FERT.
SETPOINT
HI 9
1
2.5
5
0.8
mS
EC
FEED
EC
0
1
2
ALARM
mAOUTPUT
4/200/20
mS
ZERO
CAL
HI 9931 - HI 9934
Wall Mounted
Conductivity & TDS
Controllers
2
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
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 CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
3
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
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 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.
4
MECHANICAL LAYOUTSMECHANICAL LAYOUTS
MECHANICAL LAYOUTSMECHANICAL LAYOUTS
MECHANICAL LAYOUTS
DIN connector
WIRING ACCESS
PORTS
EC
0
1
2
ALARM
mA OUTPUT
4/20 0/20
mS
0SECONDS
mS 1.6 0
TIMER
MINUTES
90
45
FINE
COARSE
PROPORTIONAL SETTINGS
ALARM AUTO
MANUAL
SET
READ
FERT.
SET POINT
HI 9931
110
2.5
5
7.5
0.8
mS
EC
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.
5
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.
6
FRONTPANEL
FUNCTIONAL DIAGRAM HI 9931FUNCTIONAL DIAGRAM HI 9931
FUNCTIONAL DIAGRAM HI 9931FUNCTIONAL DIAGRAM HI 9931
FUNCTIONAL DIAGRAM HI 9931
EC
0
1
2
ALARM
mA OUTPUT
4/20 0/20
mS
0SECONDS
mS 1.6 0
TIMER
MINUTES
90
45
FINE SLOPE
CAL
COARSE
PROPORTIONAL SETTINGS
ALARM AUTO
MANUAL
SET
READ
FERT.
SET POINT
HI 9931
110
2.5
5
7.5
0.8
mS
EC
FEED
ALARM
LINE
SET EC
ZERO
CAL
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
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.
7
Unplug the instrument from the power supply before
wiring or replacing the fuses.
21
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
8
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
9
FUNCTIONAL DIAGRAM HI 9934FUNCTIONAL DIAGRAM HI 9934
FUNCTIONAL DIAGRAM HI 9934FUNCTIONAL DIAGRAM HI 9934
FUNCTIONAL DIAGRAM HI 9934
TDS
0
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
5
7.5
FEED
ALARM
LINE
SET TDS
ZERO
CAL
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
0SECONDS
ppm 400 090
45
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
10
21
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
Questo manuale è adatto per i seguenti modelli
1
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