User manual HANNA INSTRUMENTS HI 9913

[. . . ] Instruction Manual HI 9913 - HI 9923 HI 9935 Wall Mounted Dual Conductivity/TDS & pH Controllers pH OFFS ET SLOP E 0. 5 1. 5 0 2. 0 pH 0 PROP ORTIO SE NAL SETT CONDS 90 INGS ALAR M HI 99 1 pH ACID 5 pH 1 0 ALA FE ALAR 2 M 1 0 ON ACID 4 ALK 2. 5 5 SET mS 2 OFF ALAR M 7. 5 EC mS 1 MINU 10 TE TIMER S SET pH mS FERT ZERO CAL SLOP E CA L 2 ALA FEE SET 3 EC 0. 5 1. 5 0 ON OFF ALAR M 2. 5 1 5 SET 7. 5 2. 0 mS 0 PROP ORTIO NAL SE SETT COND 90 INGS S 1 MINU 10 TE TIMER S LINE http://www. hannainst. com These Instruments are in Compliance with the CE Directives 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. [. . . ] the pump or electrovalve will cease to operate until the alarm condition is alleviated. · If the pH AUTO/MANUAL switch is in the MANUAL AUTO position, the buzzer/light will not come on if the pH value is out. The alarm will be sounded for Conductivity/TDS anomalies, unless likewise, the MANUAL Conductivity/TDS switch is also in the manual position. · The controller 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. 17 · The alarm is also activated if one or both of the independent maximum dosage times are exceeded. The maximum time that the relay contacts remain active continuously (max. dosage time) can be set from 1 to 10 minutes for HI 9913 and HI 9935 and 1 to 90 minutes for HI 9923. · Once in an alarm condition, the contact remains activated until the switch is put in the manual position or the measurements return to normal values. 5 2. 5 7. 5 10 1 MINUTES ALARM DOSING TIME TEMPERATURE COMPENSATION Temperature affects conductivity and TDS measurements considerably (approx. You however do not need to worry about having to compensate for this or go through complicated calculations since all three probes recommended in this manual (HI 7638, HI 3002 and HI 3001D) compensate for the temperature effect automatically. MAIN POWER SUPPLY CONNECTION · Before connecting the unit to the mains make sure mains, that the controller is completely wired and that all connections for pump, alarm, probe, etc. · For 220-240V, short the L1 and N1 terminals. Then wire the external power supply to the three terminals as shown. · 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. · Replace the cover with the gasket and screw it tight with the 4 screws provided. Only then connect the controller to the mains. 220 VAC Configuration Neutral Line POWER SUPPLY 110 VAC Configuration 110 VAC Configuration Neutral Line POWER SUPPLY L L1 N1 L L1 N1 18 NORMAL OPERATION & MEASUREMENT Make sure that the controller has been properly calibrated before commencing and that the pH and conductivity/TDS setpoints have been adjusted (see following pages). The pH electrode, conductivity/TDS probe and any ground probe must be properly connected and wired to the controller (see preceding pages). The conductivity/TDS probe's protective sleeve must not be removed and the holes on the sleeve should be near the top (the cable end). The probe must be immersed in the solution above the air-vent holes on the external sleeve. The probe must be installed in such a way as to minimize presence of air bubbles (see probe installation tips at the end of the manual). Remove the protective cap if it is still on the tip of the pH electrode and ensure that the electrode is immersed in the solution (at least 4cm/1. 5"). The electrode should be installed in such a away that it permanently lies in the solution whether in a well, tank or on the discharge pipe. The controller provides for visual dosing status through two LED's (see 3 and 11 - Functional DiaFEED FERT FEED ACID gram). The LED's light up when 3 2 6 5 the controller is in the pH and/ or conductivity/TDS dosage 4 7 1 4 mode and the relays are actiSET SET vated. [. . . ] t can be installed in 1/2" pipes (with the aid of a "T"). For larger pipe sizes, HI 3001D can be mounted upside down or vertically. 1/2" Thread 31 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 preaviously can also be mounted in this fashion. However the longer HI 3002 stem of HI 3002 facilitates an easier > 1/2" GAS escape route for any air bubbles. [. . . ]