Etatron eSelect M 1 CD COOL Operating Instructions And Maintenance
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Etatron eSelect M 1 CD COOL Operating Instructions And Maintenance

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eSelect M 1 CD COOL
IT
UK
OPERATING INSTRUCTIONS AND MAINTENANCE
UNI EN ISO 9001-2008

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Summary of Contents for Etatron eSelect M 1 CD COOL

  • Page 1 M 1 CD COOL OPERATING INSTRUCTIONS AND MAINTENANCE UNI EN ISO 9001-2008...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Warnings ............................8 Symbols used in the manual ......................8 Transport and handling ........................8 Intended use of the device ....................... 8 Risks ............................... 8 Assembly of the instrument ......................9 Disassembly of the instrument ....................... 9 INSTRUMENT ESELCT M1 CD COOL ....................9 General features ..........................
  • Page 3 TEMPERATURE ........................17 ETHERNET / RS 485 communication control unit with external module ......... 17 PROGRAMMING FUNCTIONS .......................18 Purge SV Solenoid Valve control ....................18 INHIBITOR control ........................19 BIOCIDE control ........................... 20 Other functions ..........................20 INITIAL DISPLAY ...........................21 Select the language of the PROGRAMMING MENU ...............
  • Page 4 Notes on CONDUCTIV ITY PROBES ....................34 ALPHA factor / TE MPERATURE / CONDUCTIVITY ................. 34 CONDUCTIV ITY sensors: Configuration and MEASURE MENT RANGE .......... 35 Configuration of CONDUCTIV ITY PROBE wires ................36 Installation of LEVEL PROBES and TANKS for chemical products ..........36 INSTRUMENT TROUBLESHOOTING ....................36 Suggestions for troubleshooting CONDUCT IVITY SENSORS ............

  • Page 5: Warnings

    Warnings Read the warnings below carefully. They provide important information regarding safe installation, use and maintenance. Store this manual with the utmost care for future reference. The device is built to a professional standard. Its durability and electrical and mechanical reliability will be more efficient if it is used properly and maintenance is carried out on a regular basis.

  • Page 6: Assembly Of The Instrument

    ▪ If you decide to no longer use a device, it is recommended to make it inoperable by unplugging it from the mains. ▪ Make sure it is switched off electrically (both polarities), disconnecting the conductors from the contact points of the mains by opening the omnipolar switch with at least 3 mm between the contacts.

  • Page 7: Main Additional Functions

    Main additional functions Function Description SV (solenoid valve) PURGE ON-OFF / voltage-free, relay 5A max – 230Vac INHIBITORON-OFFmeteringpump/voltage-free,relay5Amax – 230Vac Relay outputs BIOCIDE 1ON-OFFmetering pump/voltage-free,relay5Amax – 230Vac Setpoint BIOCIDE 2ON-OFFmetering pump/voltage-free,relay5Amax – 230Vac AUX Output ALARM voltage-free contact, relay 5A max – 230Vac Relay Outputs 0/4…20 Adjustable(500ohmmaximuminputimpedance),withgalvanicseparation.

  • Page 8: Technical Specifications Of The Instrument

    TECHNICAL SPECIFICATIONS OF THE INSTRUMENT ▪ K1 Range up to 20.00 mS Hysteresis / PWM start-up point = 500 μS Resolution 10 μS CE conductivity measurement range and K ▪ K5 Range up to 2.,000 μS / Hysteresis / PWM start-up point = 50 μS factor (cell constant) Resolution 1 μS ▪...

  • Page 9: Wall Installation

    Wall installation The wall-mounting plugs are supplied with the device. Always use a plug suitable to the available support. The layout of the holes to be drilled on the support is displayed in Figure 2. Covers (A) x 4 Fig. 2 - Measurements for wall fixing 226l x 146h To access the 4 installation holes, remove the covers on the installation points (A) found on each corner of the instrument, use a Phillips screwdriver to loosen the four screws underneath the covers, then open the front panel (see Fig.2).
  • Page 10 Fig. 3 – Connection diagram TERMINAL BOARD “A” Relay 1 SV PURGE Solenoid Valve Relay 2 INHIBITOR METERING PUMP Relay 3 BIOCIDE 1 METERING PUMP Relay 4 BIOCIDE 2 METERING PUMP TERMINAL BOARD “B” AUX 1 ON-OFF ALARM relay output for external signalling device TERMINAL BOARD “C”...

  • Page 11: Eselect M1 Cd Cool

    It is recommended to use voltage protections, check the earthing system and, when other equipment is connected in parallel, use a transducer. Furthermore, ETATRON recommends installing a UPS (genset) to assure continuity thus ensuring no data are lost.

  • Page 12: Description Of The Display

    NO MEASUREMENT CONN. , this means there is a problem between the two boards, in that case check the flat electric cable and immediately contact the ETATRON service. Other status icons shown at the end of the row *** EC - MAX ALARM Max EC conductivity value programmed in the “PURGE”...

  • Page 13: Operating Functions

    BIO1 or BIO2 in standby : the BIO metering process is in standby due to other active operations, for example pre-Purge or active Inhibitor dispensing or Purge operation in progress. “ | / - \ ” This is an animated sequenced icon that moves each time the pulses are received by the unit via the pulse emitting meter. NO FLOW shows the absence of water flow in the probe socket of the sensor: this is only valid when using a proximity sensor and the "Flow sensor"...

  • Page 14: Timer In Real Time / Start-Stop Time

    • METERING ON SETPOINT: the mA output controls metering pumps suited to processing an input mA signal. 4 mA corresponds to the minimum EC value (0 μS), therefore the connected mA unit operates at the minimum programmed capacity. 20 mA corresponds to the maximum measured value (according to the selected K factor range) which may be 200 μS, 2000 μS, 20 mS, 100 mS, therefore the connected mA unit operates at the maximum programmed capacity.

  • Page 15: Programming Functions

    PROGRAMMING FUNCTIONS Purge SV Solenoid Valve control The instrument eSelect M – CD COOL offers two modes for purge operations (water drain) of the SV. TIMER mode: for easy programming or in case of conductivity probe fault, the operator may enable the Timer mode; the SV is driven by the internal timer regardless of the conductivity reading in the cooling tower.

  • Page 16: Inhibitor Control

    INHIBITOR control The instrument eSelect M – CD COOL offers four modes for inhibitor metering operations. DIRECT PURGE: starts dispensing the inhibitor when the purge SV is open (works parallel to the SV) Mode Selection DIRECT PURGE: the inhibitor is dispensed during SV purge operations. Max Metering time Selects the maximum inhibitor dispensing time.

  • Page 17: Biocide Control

    Real-time clock Sets the date and exact time driving the internal timer according to the real-time clock Selects the flow sensor (proximity probe): the ETATRON flow sensor is normally open (NO). This status must be Flow Control enabled while commissioning from the SETTINGS menu.

  • Page 18: Initial Display

    - K1 up to 20.00 mS (20,000 μS) K5 up to 2,000 µS ON REQUEST other measurement ranges are possible only after approval by ETATRON D.S.: > K0.8 up to 100 mS (100,000 µS): the latter by means of probe with graphite electrode.

  • Page 19: Temperature Settings

    Se�ing Meas. CE The cell constant K default set at 1,000, press ◄► to edit the K value. K1 select 1,000 Const.K EC probe K5 select 5,000 1 , 000 The display shows the value in μS but if the selected value exceeds 1999 μS, it will show 2.00 mS IMPORTANT: ensure the selected K value matches that of the conductivity sensor in use.

  • Page 20: Purge Menu

    * Selecting setting C o n s t . K EC p r o b e , Menu Selection Menu Selection ◄ ► ◄ ► S E T P O I N T 1 and 4 - 20 m A2 Settings C A L I B R A T I O N will be followed by the values in the selected K range...

  • Page 21: Purge Operations By Means Of Conductivity Measurement

    SV PURGE MENU Cycle duration Selects the opening cycle of the purge SV. 000 : 00 ( m: s) SV PURGE MENU SV PURGE MENU Enables or disables the Flow sensor function (proximity probe). The flow Flow Sensor Flow Sensor sensor is useful in the event of water lack in the probe socket;...

  • Page 22: Inhibitor Menu

    Direct mode: the output is active when the measured value is lower than SV PURGE MENU SV PURGE MENU the one selected in the setpoint. Direction Direction Reverse Direct Reverse mode: the output is active even if the measured value is higher than the one selected in the setpoint.

  • Page 23: Inhibitor Metering Operations Via Direct Purge Function

    INHIBITOR METERING operations via Direct Purge function Menu Selection INHIBITOR INHIBITOR MENU Mode Selection DIRECT PURGE: starts dispensing the inhibitor when the purge SV is open (works parallel to the SV) Direct Purge INHIBITOR MENU Max Disp. Time Selects the maximum inhibitor dispensing time. 000 : 00 ( m: s) INHIBITOR MENU INHIBITOR MENU...

  • Page 24: Inhibitor Metering Operations Via Timer Programming Function

    INHIBITOR MENU Dispense Purge % Sets the SV time percentage for draining; this is the time corresponding to inhibitor dispensing operations. INHIBITOR MENU INHIBITOR MENU Enables or disables the Flow sensor function (proximity probe). The flow Flow Sensor Flow Sensor sensor is useful in the event of water lack in the probe socket;...

  • Page 25: Inhibitor Metering Operations Via Pulse Emitting Meter

    INHIBITOR MENU Overwrites the previous SV programming (timer or conductivity), selecting the maximum SV opening time and Max Manual Time manual start-up (next step). It is a safety measure in the case where the operator opens the SV via the Max 000 .

  • Page 26: Biocide Menu

    BIOCIDE MENU The instrument eSelect M – CD COOL offers TWO modes for Biocide metering operations. Most cooling tower systems include two biocide programs to assure efficient disinfection quality. NOTE: the Biocide function requires using an On-Off metering pump suited to processing the input contacts generated by the internal timer.

  • Page 27: Biocide Menu > Pre-Purge > Time Lock

    Press ◄ ► to select the days of activity ◄ ► N no or Y yes Confirm by pressing OK, automatically goes to the next step Selects the weeks of the month during which the connected equipment is operational Weeks 1:S 2:N 3:N 4:N Press ◄...

  • Page 28: Analogue 4-20Ma Outputs

    ON REQUEST other measurement ranges are possible only after approval by ETATRON D.S. > K0.8 up to 100 mS (100,000 µS): via ETATRON probe with graphite electrodes or other brands withequivalent models. > K10 up to 200 µS with probe suitable to measure this range.

  • Page 29: 4-20Ma1 / 4-20Ma2

    4 -20 m A 1 / 4 -20 m A 2 Menu Selection Menu Selection 4 - 20 m A1 4 - 20 m A2 *Programming according to selected E C p r o b e K f a c t o r Valid for: 4- 20mA1 / 4-20mA2 SETTING 4-20mA SETTING 4-20mA...
  • Page 30 Press ◄► to show the ambient temperature and calibrate the sensor. SETTINGS SETTINGS Temp. Sensor Temp. Calibrat. Automatic 100 ° C The Alpha EC factor is the correction factor for conductivity measurements according to temperature: each SETTINGS conductivity sensor depends on the temperature. Conductivity changes linearly with the temperature of the Temp.

  • Page 31: Sensor Cleaning And Maintenance And Technical Specifications

    FOR 4/6 WIRE CONDUCTIVITY SENSORS (with built-in temperature sensor) by virtue of the various models on the market, should the operator wish to use these sensors, they are kindly requested to contact the ETATRON service or the local dealer to receive the correct set-up for connecting to the terminal board.

  • Page 32: Conductivity Sensors: Configuration And Measurement Range

    CONDUCTIVITY sensors: Configuration and MEASUREMENT RANGE Model: STGEC Code: 99210014 Electrodes: GRAPHITE Pressure: 8 bar Max Body: PTFE Cable length: Weight: 135 gr. Cell constant K: Range K0.8: standard 20 mS (20,000 μS) Able to measure up to 100 mS (100,000 μS) Model: STEC K1 Code:...

  • Page 33: Configuration Of Conductivity Probe Wires

    Check whether the mains match the power supply 1. Display is OFF printed on thelabel. Check the board and replace it following authorisation by Burnt smell ETATRON Conductivity levels are NOT Check again using a portable instrument, especially the stable temperature 2.

  • Page 34: Suggestions For Troubleshooting Conduct Ivity Sensors

    It is recommended to use voltage protections, check the earthing system and, when other equipment is connected in parallel, use a contactor. Furthermore, ETATRON recommends installing a UPS (genset) to assure continuity thus ensuring no data are lost.
  • Page 35 ENGLISH...
  • Page 36 ENGLISH...

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