Last Updated: 23/02/2020
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Contrec 515 – CR01 Frequency Input Batch Ratio Controller

Part Number: 515 – CR01 Categories: ,
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    The 515 CR01 application is a single loop process controller measuring the volume flow a in main and process line using frequency flow inputs. It can operate in local (manual), loop, ratio or blend mode and has a tuning menu to easily determine the Proportional Band and Integral Time Values used in the PI control algorithm.

    The main and process flows are used to determine the net volume flow. The operator can view the actual ratio and deviation and has the ability to change the controlling setpoint directly from the main menu if access has been authorised.

    The PI control of the process flow is via a 4-20mA proportional valve or pump controller. It has integral wind-up protection and a deadband and output ramp time can be programmed to reduce wear on valves and actuators and provide for bumpless operation.

    CALCULATIONS

    There are three types of control modes in which the process flow is dependent on the main flow. These are RATIO, BLEND-1 and BLEND-2 modes where the relationship between the flows are as follows:

    Ratio Control Mode.

    The process flow is a ratio of the main flow (0-400% range)

    Pflow
    Ratio% = —————- × 100
    Mflow

    Blend Control Modes.

    These modes cater for blending points before and after the main flowmeter. The process flow is a ratio of the net (combined) flow (o-80% range).

    Pflow
    Ratio% = —————- × 100
    Netflow

    Product Highlight

    • Tailored for volumetric frequency flow input
    • Uses PI Loop Control
    • Pump demand contact
    • Selection of various control modes
    • “Flushing” available via external logic signal
    • Allows for cascade trim control when ratio of totals is required
    • Allows for non-linear correction
    • Selection of second language and user tags
    • RTC logging with over 1000 entries
    • Selectable protocols on serial ports including Modbus RTU and Printer output
    • Backlit display with LCD backup

    Datasheet: Contrec 515 – CR01 Datasheet

    Instruction Manual: Contrec 515 – CR01 Instruction Manual

    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm

    Setup, Configuration and Technical Support of our Products are FREE.

    We help to check your faulty Instruments too, fill in the form here

    Free phone and email tech support continues as long as you own the product. Click here for contact information.

    close-link
    celectric logo

    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm or Email [email protected]

    FREE Domestic AND SEA Shipping!

    Most orders RM500/USD120 or more ship SEA for FREE!

    • Delivery within the Southeast Asia only.
    • Hazardous items excluded.
    • Extremely heavy or bulky items excluded.
    • Distributors, Resellers and OEMs excluded.
    • Contact us for shipping charge for orders < RM500/USD120
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