SYDNEY, AUSTRALIA
Products:  

Cooling Water Controllers

  • Model 2250 - Microprocessor-Based Boiler Controller
  • Model 2255 - Microprocessor-Based Multi-Boiler Controller

  • Model 2250 - Microprocessor-Based Boiler Controller

    LONWORKS* is the latest in microprocessor technology that gives the user the highest level of application flexibility. A large graphic screen, multiple inputs and very easy setup, with easy field upgrade characterize this new technology.

    Features
    • Steam flashing detector and compensation.
    • Cycle sample or continuous conductivity control of blowdown.
    • Use cycle sample for blowdown less than 1,000 lb./hr.
    • Use continuous for blowdown greater than 1,000 lb./hr.
    • Can feed chemical according to water meter percent of bleed or percent on-time.
    • Interactive communications software datalog and control (-RS2L & -RTC Options).
    • Four different languages:
      - English Spanish (standard)
      - English French (optional)
      - English German (optional).
    Benefits
    • Accurate control of boiler conductivity.
    • Control results in fuel savings by preventing excessive blowdown.
    • Prevents carryover due to excessive conductivity.
    • Two water/flow meter inputs provided.
    Specifications
     
    Inputs     Connection inch MNPT
    Power 120/240 VAC 50/60 HZ Controller  
    Sensor Input 2 and 4 electrode Conductivity Conductivity Range 0-8,000 (other ranges available)
    Temperature comp. Automatic or disable Conductivity Accuracy 40 S
    Flow switch Dry contact Conductivity Resolution 10 S
    Water Meter Input Two contacting head or open collector Deadband Adjustable

    Conductivity Setpoint Cycle sample or continuous
    Outputs   Sample Time Adjustable
    Relays Four, 3 Amps @ 120 VAC Cycle Time Adjustable
    4-20 mA Two, isolated w/-35L Keypad Numeric

    Display Illuminated 128x64 pixel LCD
    Sensor (SR2)   Ambient Temperature 32-158F (0-70C)
    Pressure 600 psi (41.4 bar) Enclosure Rating ABS Plastic
    UL and CSA Listed
    Max. Temperature 486F (252C)    
    Body Carbon Steel    
    Electrode 416 SS    
    Insulator PEEK    


    Model 2255 - Microprocessor-Based Multi Boiler Controller

    The Lakewood Model 2255 Multi-Boiler Controller uses LONWORKS* Technology for accurate control of your boiler system. The system will allow control of one to eight boilers using the cycle sample or continuous sample method. Two water meter inputs are available which can be used to feed chemicals. Each conductivity input contains its own microcontroller which talks directly to the relay that controls the motorized ball valve for each boiler. The 2255 can be programmed with LRWS (Lakewood Remote Windows Software) or from the keypad of the controller. LRWS allows data to be accumulated on all boilers, water meter inputs, chemical pump on time and more. LRWS will also allow the user to make graphs of the downloaded information, print conductivity values or export information for use with datalogging spreadsheets.

    Features
    • Steam flashing detector and compensation.
    • Steam flashing detector and compensation.
    • Control and monitor 1 to 8 boilers.
    • Future boilers can be added to an existing system.
    • Boiler input(s) can be substituted to monitor condensate.
    • Cycle sample or continuous conductivity control of blowdown.
    • Use Cycle sample for blowdown less than 1,000 lb/hr.
    • Use continuous for blowdown greater than 1,000 lb/hr.
    • Two water/flow meter inputs provided.
    • Can feed chemical according to water meter, percent of bleed, or percent on-time.
    • Interactive communications software datalog and control (-RS2L & -RTC Options).
    • Four different languages:
      - English Spanish (standard)
      - English French (optional)
      - English German (optional)
    Benefits
    • Accurate control of boiler conductivity.
    • Control results in fuel savings by preventing excessive blowdown.
    • Prevents carryover due to excessive conductivity.
    • One controller can monitor and datalog up to 8 boilers.
    Specifications
     
    Controller Inputs     NCON, Conductivity Node  
    Power 120/240 VAC 50/60 HZ Conductivity Range 0-10,000 mS
    Network Inputs One to Eight boilers, Two NRLY's and up to 8 NCON's Conductivity Accuracy 1% of full scale
    Water Meter Input Two contacting head or hall effect. Conductivity Resolution !% of reading

    Ambient Temperature 32-158F (0-70C)
    Outputs   Temperature comp. Automatic or disable
    2255 Relays Four for alarms or chemfeed
    3 Amps @ 120 VAC
    Power 24 VDC
    NRLY Four in each NRLY, 3 Amps @ 120 VAC

    NRLY, Relay Node  
    Sensor (SR2)   Ambient Temperature 32-158F (0-70C)
    Pressure 600 psi (41.4 bar) Enclosure ABS Plastic
    Max. temperature 486F (252C) Power 24 VDC
    Body Carbon Steel
    Electrode 416 SS Controller  
    Insulator PEEK Deadband Adjustable
    Connection inch MNPT Conductivity Setpoint Cycle sample or continuous
        Sample Time Adjustable
        Cycle Time Adjustable
        Keypad Numeric
        Display Illuminated 128x64 pixel LCD
        Ambient Temperature 32-158F (0-70C)
        Enclosure ABS Plastic
    UL and CSA Listed