Instruction Manual HI 9931 - HI 9934 Wall Mounted Conductivity & TDS Controllers EC EC ALAR M HI 9 mS 1 0 mS 2 4/20 0/2 mA OUTP 0 UT SET ZERO CAL POINT COAR SE FINE ALAR M AUTO ALAR MANU AL M SLOP E CAL SET SET EC FERT . FEED READ 0.8 45 0 1.6 mS 0 PROP ORTIO 90 NAL SECOND SETT S INGS 2.5 5 1 MINUT ES TIMER LINE http://www.hannainst.
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 CONTENTS PRELIMINARY 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 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. MECHANICAL LAYOUTS DIN connector WIRING ACCESS PORTS Fig. 1 Figure 1 illustrates the connector for probe and the wiring access ports.
3“ 75 mm 25 mm 1“ 96.9 mm 3.8“ Fig. 3 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. 6.9“ 174.8 mm 7.4“ 188.6 mm 227.8 mm 9“ 221.8 mm 8.7“ Fig. 4 Figure 4 is a dimensioned front view of the wall mounted controller.
FUNCTIONAL DIAGRAM HI 9931 FRONT PANEL 13 14 1 2 3 4 5 6 7 EC ALARM HI 9931 15 1 EC 0 mS 4/20 0/20 mA OUTPUT SET POINT ZERO CAL COARSE FINE SLOPE CAL 16 17 ALARM SET AUTO ALARM mS 2 MANUAL SET EC FERT. FEED READ 8 18 19 9 0.8 45 5 2.5 0 1.6 0 mS SECONDS PROPORTIONAL SETTINGS 90 7.5 10 1 MINUTES TIMER LINE 10 11 12 20 Left panel 1. Liquid Crystal Display 2. Slope calibration trimmer 3. Fine setpoint trimmer 4. Coarse setpoint trimmer 5. Zero calibration trimmer 6.
17. 18. 19. 20. Powered dosage terminals (Relay) 110/115V or 220/240V power configuration Incoming power terminals Fuses BOTTOM VIEW 21 21. Female DIN connector for conductivity probe Unplug the instrument from the power supply before wiring or replacing the fuses.
Specifications RANGE HI 9931 0.00 to 10.00 mS/cm (EC) RESOLUTION 0.01 mS/cm ACCURACY (@20 C/68 F) ±2% F. S. TYPICAL EMC DEVIATION CALIBRATION ±2% F. S. SETPOINT RANGE PROPORTIONAL CONTROL ALARM CONTACTS DOSING TERMINALS PROBE (optional) POWER SUPPLY ENVIRONMENT WEIGHT ENCLOSURE CASE MATERIAL Through "ZERO CAL" and "SLOPE CAL" trimmers From 0 to 10.00 mS/cm Conductivity from 0.0 to 1.
FUNCTIONAL DIAGRAM HI 9934 FRONT PANEL 13 14 1 2 3 4 5 6 7 TDS ALARM HI 9934 15 200 TDS 0 ppm SET POINT ZERO CAL COARSE 400 ppm 4/20 0/20 mA OUTPUT FINE SLOPE CAL AUTO SET MANUAL READ 16 17 ALARM ALARM SET TDS FERT. FEED 8 18 19 9 200 5 45 2.5 0 400 0 ppm SECONDS PROPORTIONAL SETTINGS 90 7.5 10 1 MINUTES TIMER LINE 10 11 12 20 Left panel 1. Liquid Crystal Display 2. Slope calibration trimmer 3. Fine setpoint trimmer 4. Coarse setpoint trimmer 5.
17. 18. 19. 20. Open (NO) position. Powered dosage terminals (Relay) 110/115V or 220/240V power configuration Incoming power terminals Fuses BOTTOM VIEW 21 21.
Specifications RANGE HI 9934 0.00 to 1999 ppm (mg/L) RESOLUTION 1 ppm (mg/L) ACCURACY (@20 C/68 F) ±2% F. S. TYPICAL EMC DEVIATION CALIBRATION SETPOINT RANGE PROPORTIONAL CONTROL ±2% F. S. Through "ZERO CAL" and "SLOPE CAL" trimmers From 0 to 1999 ppm (mg/L) TDS from 0 to 400 ppm and time cycle from 0 to 90 seconds ALARM CONTACTS Terminals can be configured as normally open or normally closed (isolated output Max. 2A, Max. 240V, resistive load, 1,000,000 strokes).
CONNECTIONS & WIRING GENERAL POINTS • The relay terminals of the controller are powered powered. This means that you can simply hook up your pump or electrovalve directly to the controller and do not need additional power supply. • Unscrew the 4 screws on the right hand panel and remove the cover and the gasket. Thread the wires through the access ports on the right hand side of the controller.
gram). The terminals are powered and hence you do not need an external power supply for the pumps or valves. BL DOSING PUMP HI 9931 EC ALARM 1 EC mS 0 COARSE FINE SLOPE CAL AUTO SET MANUAL READ ALARM ALARM SET EC FERT. FEED 45 0.8 5 2.5 1.6 0 mS SECONDS PROPORTIONAL SETTINGS 0 mS 2 4/20 0/20 mA OUTPUT SET POINT ZERO CAL 90 7.5 10 1 MINUTES TIMER LINE ALARM CONNECTIONS EC TDS • The operator can select an alarm threshALARM ALARM 1 old of 0.0 to 2.
• The contoller provides for automatic fail-safe secruity by activating the alarm if there is a power failure, regardless of whether the NC or NO configurations were chosen. • The alarm is also activated if the overdosage time is exceeded. The maximum time that the relay contacts remain active continuously can be set from 1 to 10 minutes. • Once in an alarm condition, the alarm contact remains activated until the switch is put in the manual position or the measurements return to normal values. 5 2.5 7.
MAIN POWER SUPPLY CONNECTION • Before connecting the unit to the mains mains, make sure that the controller is completely wired and that all connections for pump, alarm, probe, etc. have been made. • For 220-240V, short the L1 and N1 terminals. Then wire the external power supply to the three terminals as shown. L L1 N1 220 VAC Configuration Neutral Line POWER SUPPLY • For 110-115V, short the L and L1 terminals and the N1 and Neutral. Then wire the external power supply to the three terminals as shown.
CALIBRATION Make sure that the probe has been properly connected and wired to the controller (see preceding pages) and that the meter is plugged to the mains. Calibration should be ideally performed at a temperature similar to that of the liquid to be monitored. SET Ensure that the controller is in the “READ” position. READ ZERO ADJUSTMENT: • Leave the probe in the air and make sure that it is dry. • The LCD should show 0. If necessary adjust the "ZERO CAL" trimmer to display zero.
• Once the controller is calibrated to a solution by referring to its value at 25 °C, all subsequent measurements are temperature compensated to 25 °C. You can also obtain temperature compensation to a different temperature reference point by calibrating the meter to that value. For example, the conductivity and TDS value of HI 7031L and HI 70442L at 20 °C are 1.28 mS/cm and 1358 ppm, respectively.
PROPORTIONAL CONTROL In order to optimize the controlling process and reduce the amount of chemicals and fertilizers used, it is recommended to use a proportional dosage appropriate for the system. 0.8 0 45 1.6 0 mS SECONDS PROPORTIONAL SETTINGS 200 90 0 45 400 0 ppm SECONDS PROPORTIONAL SETTINGS 90 HI 9931 and HI 9934 allow for a proportional band (delta) of 0 to 1.6 mS/cm and 0 to 400 ppm for conductivity (EC) and TDS, respectively.
and off for 15 seconds. In order to avoid over dosage of highly concentrated chemicals or fertilizers, the controller provides even a more accurate control. As the graphs show, it does that by stopping the dosage as soon as the current pulse curve intersects the dosage curve. This means shortening the dosage period if the chemicals have reacted quickly or lengthening it if the measured conductivity continues to drift from the ideal setpoint as can be seen from the graphs. D mS 0.80 0.60 0.40 0.
OVERDOSAGE TIMER HI 9931 and HI 9934 provide for an overdosage alarm system. The operator can set the maximum amount of time that the dosage terminals should continuously remain activated from 1 to 10 minutes . Should this period elapse, the alarm 5 terminals are activated (and dosage 2.5 7.5 disactivated to ensure that fertilizers or chemi10 1 cals have not run out or pumps or MINUTES TIMER electrovalves have not ceased to function properly).
IMPORTANT: After performing the cleaning procedures rinse the probe thoroughly with distilled or tap water. Dry it and replace the sleeve ensuring that the air-vents are nearer to the cable end and recalibrate the controller. TROUBLESHOOTING If the controller does not respond properly or constantly reads zero or a value close to it, or is in over range, check the probe and cable for cracks. The cable may be shorted or the probe broken, in which case they need to be replaced.
HI 3002 FOR IN-LINE INSTALLATION The drawing illustrates the ideal installation system since the stream pressure in the pipe forces the air bubbles out automatically. HI 3001D illustrated previously can also be ,mounted in this fashion. However the longer stem of HI 3002 facilitates an easier escape route for any air bubbles. HI 3002 comes with external 1/2” NPT and thread 60 mm (2.4”) immersion level.
ACCESSORIES EC/TDS PROBE 1/2” NPT platinum 20 mm (0.8”) long, 4-ring probe with temperature sensor and external threads for pipes HI 3002 1/2” NPT platinum 60 mm (2.4”) 4-ring probe with temperature sensor and external threads for pipes and tanks HI 7638 3/8” NPT platinum 60 mm (2.4”) 4-ring probe with temperature sensor and stainless steel external threads for high temperature and pressure Hanna manufactures an extensive range of probes for process, water treatment and fertilizer applications.
WARRANTY All Hanna controllers are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. This warranty is limited to free of charge repair or replacement of the meter only, if any malfunctioning is due to manufacturing defects. If service is required, contact the dealer from whom you purchased the instrument.
OTHER PRODUCTS FROM HANNA • • • • • • • • • • • • • • • • • • • • • CABLES AND CONNECTORS CALIBRATION AND MAINTENANCE SOLUTIONS CHEMICAL TEST KITS CHLORINE METERS CONDUCTIVITY/TDS METERS DISSOLVED OXYGEN METERS HYGROMETERS ION SPECIFIC METERS (Colorimeters) MAGNETIC STIRRERS Na/NaCl METERS pH/ORP/Na ELECTRODES pH METERS PROBES (DO, µS/cm, RH, T, TDS) PUMPS REAGENTS SOFTWARE THERMOMETERS TITRATORS TRANSMITTERS TURBIDITY METERS Wide Range of ACCESSORIES Most Hanna meters are available in the following forma
CE DECLARATION OF CONFORMITY DECLARATION OF CONFORMITY We Hanna Instruments Srl V.le delle industrie 12 35010 Ronchi di Villafranca (PD) ITALY herewith certify that the wall-mounted instrument: HI 9931 HI 9934 has been tested and found to be in compliance with the following regulations: IEC 801-2 IEC 801-3 IEC 801-4 EN 55022 EN 61010-1 Electrostatic Discharge RF Radiated Fast Transient Radiated, Class B User Safety Requirement Date of Issue: 07-06-1999 D.
HANNA LITERATURE Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The reference literature currently covers areas such as: • Water Treatment • Process • Swimming Pools • Agriculture • Food • Laboratory • Thermometry and many others. New reference material is constantly being added to the library. MAN9931 10/99 PRINTED IN PORTUGAL For these and other catalogs, handbooks and leaflets, contact your dealer or the Hanna Customer Service Center nearest to you.