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Pulsafeeder MICROtrac Installation And Operation Manual

Microprocessor – based water treatment controller
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MICROtrac
MICROPROCESSOR – BASED
WATER TREATMENT
CONTROLLER
Installation and Operation Manual

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Summary of Contents for Pulsafeeder MICROtrac

  • Page 1 MICROtrac MICROPROCESSOR – BASED WATER TREATMENT CONTROLLER Installation and Operation Manual...
  • Page 2 MICROtrac Warranty Pulsafeeder, Inc. warrants MICROtrac control systems (including the conductivity sensor) of its manufacture to be free of defects in material or workmanship. Liability under this policy extends for 24 months from date of shipment. The manufacturer's liability is limited to repair or replacement of any failed equipment or part, which is proven defective in material or workmanship upon completion of the manufacturer's examination.

  • Page 3: Table Of Contents

    Table of Contents 1. I ..................4 NTRODUCTION 2. I ..................4 NSTALLATION 2.1 Controller Location ................ 4 2.2 Sensor Installation ................. 4 3. E ................6 LECTRICAL IRING 3.1 Electrical Connections ..............7 4. S ................9 YSTEM PERATION 4.1 Front Panel ..................

  • Page 4: Introduction

    1. Introduction Your microprocessor-based controller has been designed to monitor and control the conductivity of your process water. The controller energizes two relay outputs based on a bleed and feed mode of operation. When the conductivity measurement goes above the user defined set point, (2) two relays are energized until the conductivity goes below the set point minus the fixed differential value.
  • Page 5 Fig. 1: Typical Installation Fig. 2: Probe Alignment For maximum accuracy, make sure that the conductivity sensor is installed so the liquid stream passes straight through the round probe hole (see Fig.2). 72-910-02 REV. P...

  • Page 6: Electrical Wiring

    Devices attached to any Relay connection must be Single Phase and rated for the same voltage as the input voltage to the product. (e. g. 120VAC MicroTrac controllers support 120VAC relay attached devices exclusively and 220VAC MicroTrac controller support 220VAC relay attached devices exclusively.) Do not...

  • Page 7: Electrical Connections

    Pre-wired controllers are supplied with 6 ft (1,8 m), 18 AWG (1,2 mm ) 3-wire grounded power cords and clearly marked 18 AWG (1,2 mm ) 3-wire grounded receptacle cords for all controlled line voltage outputs. Controllers that are to use electrical conduit are factory pre-drilled with easily accessible connections for hard wiring of input and output power connections.
  • Page 8 Bleed (solenoid valve) This control output is identified on the controller PC board as location PL5. The terminal block connections for PL5 are HOT (LINE), RTN (return or Neutral), and Ground. This control output will energize when the programmed conductivity set point is exceeded. This output will de-energize when the conductivity reading falls below the set point minus the fixed set point differential (-5% of set point).

  • Page 9: System Operation

    CONTROLLER ARE NOT IN A POSITION TO CAUSE HARM OR DAMAGE IF ENERGIZED UPON INITIAL START DISPLAY SCREEN Bleed Set Point MICROtrac Feed Front panel Fig. 5 4.1 Front Panel The front panel of the controller has a 4-digit LCD display, four LED indicators, and three pushbuttons that are used for programming and controller monitoring.

  • Page 10: System Functions

    4.2 System Functions Bleed The bleed LED will light when the bleed relay is energized in normal operation or when the controller is displaying the bleed limit time setting. When in programming mode this LED will flash indicating it is okay to change the bleed limit time setting.

  • Page 11: Controller Programming

    4.3.1 Control Modes Listed below are the different control modes of the MicroTrac controller. Each control mode uses simple parameters for user modifications. • Limit Timer - This control mode causes the Bleed and Feed output to energize when the conductivity exceeds the Conductivity setpoint.
  • Page 12 Feed Counts Counts – Set this value to the number of water meter input pulses needed + Time before the Feed cycle begins. Range = 1-9,999. Time – Set this value to the amount of time the Feed output should energize when the programmed number of water meter input pulses have been detected.

  • Page 13: Conductivity Set Point

    4.3.2 Conductivity Set Point Set this value to the highest conductivity point the controller will allow before a bleed and feed cycle begins. When the system conductivity reaches this set point the bleed and feed control outputs will energize. When the system conductivity falls to the conductivity set point minus 5% the bleed and feed cycle will terminate and the control outputs will de-energize.

  • Page 14: Sensor Calibration

    Both Limit Timers will reset if the conductivity reading changes to above or below the set point and differential. 5. Sensor Calibration The controller is factory calibrated and requires no user adjustments. Some deviation in the reading may be expected when compared to a hand-held tester. However, if you wish to perform a calibration, follow this procedure: 1.

  • Page 15: Specifications

    7. Specifications Controller Enclosure NEMA 4X / Designed to meet IP65 Enclosure Dimensions 6.4 in. x 2.5 in. x 3.2 in. (163 x 64 x 82mm) Power supply 120 or 220 VAC, 50/60 Hz. Fuses F1 & F2: 5A, IEC 60127-2 · 250 VAC · Time-Lag T 1A, 2AG, Time Lag, 250VAC (Note: F1 is not serviceable in the field.) All fuses are UL, CSA recognized or listed.
  • Page 16 Flow Switch Conductivity probe with tee Fig. 6 Fig. 7 72-910-02 REV. P...

  • Page 17: Trouble Shooting Guide

    8. Trouble Shooting Guide Symptom Probable Cause Possible Solution No power supplied to controller Insure that correct voltage is supplied to controller. Check circuit breaker supplying power to the controller. Controller does not power up Fuse is blown Check/replace fuse (see Figure 3, Page 8) Probe wiring incorrect Check probe wiring (see Figure 3, Page 8) Ensure there is enough of a pressure differential...

  • Page 18: Controller Mounting Dimensions

    9. Controller Mounting Dimensions Fig. 8 72-910-02 REV. P...

  • Page 19: Addendum: Microtrac Pc Board Replacement

    5. Install the new MicroTrac PCBA into the top enclosure. Ensure that the LCD, buttons and LEDs are correctly aligned in the top enclosure. 6. Secure the new board with the 4 mounting screws located at each corner of the MicroTrac PCB Assembly (PCBA).

  • Page 20: Microtrac Factory Service Policy

    11. MICROtrac Factory Service Policy Your MICROtrac controller is a state of the art microprocessor based controller. If you are experiencing a problem with your Microtrac controller, first consult the troubleshooting guide in this manual. If the problem cannot be resolved contact Technical Services for assistance.
  • Page 21 EC Declaration of Conformity We, Pulsafeeder Inc., declare under sole responsibility that Microtrac equipment to which this declaration relates is in sole conformity with relevant sections of the applicable EC standards and other normative documents listed on this document. If changes are made to the product which is covered by this declaration of conformity, the declaration of conformity is no longer valid.
  • Page 22 European Union (EU) Pulsafeeder, Inc. PULSAFEEDER-Europe 27101 Airport Road Via Kennedy, 12-20090 Punta Gorda, FL 33982 Segrate—Milano– Italy (941) 575-3800 www.pulsa.com 72-910-02 REV. P...

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