Related Manuals for Pulsafeeder MICROtrac MTC3XTX-XXX
Summary of Contents for Pulsafeeder MICROtrac MTC3XTX-XXX
- 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.
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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..................9 4.2 System Functions................ -
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. R...
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Page 6: Electrical Wiring
Flow Sensor If your controller is provided with a flow switch, install the flow switch so that flow enters into the bottom of the provided flow switch tee, and out of the side of the tee. The flow switch must always be installed in a vertical position so that the sensor wire is coming out of the top, and the internal (red) flow shuttle is able to rise when there is flow and drop when there is not flow. -
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).
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Page 9: System Operation
4. System Operation EFORE APPLYING POWER INSURE THAT DEVICES BEING CONTROLLED BY THIS 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 Controller Programming Press the Mode button to advance to the setting to be changed indicated by the function’s LED. To enter programming mode press and hold the Mode [m] button for five seconds. The function’s LED will begin to flash when the programming mode has been activated. Use the [Up]/[Down] buttons to modify the programmable parameters. -
Page 12: Conductivity Set Point
Range Function BLEED 0-08:00 Optional limit timer. Set this value to the maximum amount of time a Bleed hh:mm cycle should take before going into an alarm condition. Leaving this timer set to 0 disables this function. The time value is adjusted in 15 minute increments. -
Page 13: Alarm Conditions
The set point differential is fixed at 5% below the set point. For example, if the set point is set to 1000uS/cm the bleed and feed outputs will energize at 1000uS/cm and de-energize at 950uS/cm. 4.4 Alarm Conditions Flow Alarm With a loss of flow the two (red) LED’s will flash and the display will read “Err Flo.”... -
Page 14: Sensor Calibration
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. Place the probe in the process that it will normally be installed in and allow flow across the probe for approximately 15 minutes. - Page 15 Maximum Relay Output Current 120 VAC 4A Resistive/General use 4LRA/FLA, 1/10HP (motors) 220 VAC 4A Resistive/General use Not rated for motors Probe Maximum temperature 122° F (50°C) Temperature compensation range 32°F – 122°F (0° – 50°C) Maximum pressure 125 PSI (8.6 BAR) Probe type...
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Page 16: 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 17: Controller Mounting Dimensions
9. Controller Mounting Dimensions Fig. 8 72-910-02 REV. R... -
Page 18: Addendum: Microtrac Pc Board Replacement
10. Addendum: MicroTrac PC Board Replacement Disconnect input power cord from AC Mains Receptacle prior to opening the MicroTrac controller. With the input power disconnected, the MicroTrac LCD and LEDs will be off. 1. Remove the four screws that retain the front panel and remove it. 2. -
Page 19: Microtrac Factory Service Policy
Trained technicians are available to help diagnose your controller or process problems. All returns require a Return Authorization number to be issued by Pulsafeeder. Parts purchased to correct a warranty issue may be credited after an examination of original parts by Pulsafeeder. Warranty parts returned as defective which test good will be sent back freight collect. - Page 20 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 21 European Union (EU) PULSAFEEDER-Europe Pulsafeeder, Inc. 27101 Airport Road Via Kennedy, 12-20090 Punta Gorda, FL 33982 Segrate—Milano– Italy 72-910-02 REV. R...
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