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Calibrators-Testers CL516 and CL517

Simultaneous Input/Output


The two temperature calibrators CL516 and CL516D and the two universal calibrators CL517 and CL517D are designed for checking calibration and maintenance; they can measure and simulate physical or electrical signals on site as well as in laboratories.

Dependent upon type or model, these calibrators perform all or part of the following functions:

  • DC voltage and current measurements,

  • resistance measurements,

  • temperature measurements with thermocouple or RTD,

  • DC voltage and current source (in active or passive mode),

  • resistance, thermocouple and RTD simulation.

    • Measurement and sourcing can be performed simultaneously with dual display. Input and output circuits are galvanically insulated.

    These calibrators are perfectly suitable for test of all equipment that can be found in control loops: sensors, transducers, transmitters, indicators, recorders, controllers, and PLC input cards.

    They allow direct calibration of transducers or transmitters, by generating signals which simulate sensors and simultaneously measuring voltage or current output. An internal software program makes this operation easy.

    These calibrators have many other applications, especially monitoring of physical signals during process, of conversion operation or heat transfer.

    CL516/CL517 calibrators have many auxiliary functions which extend their field of application: relative measurements, linearized display, measurement triggering with logging function, steps and simple or cyclic ramps generation, sourcing values from memory and curve synthesis function.

    A series of technical enhancements make all these functions easy: quick function access, help messages, connection via standard terminals and banana plugs, protection against overload, rechargeable battery power supply allowing permanent use without discharge when connected to mains.

    The CL516/CL517 units are made in a rugged, heavy duty housing, fitted with a removable stand for benchtop use. They can be placed and used in a carrying case.

    CL516D and CL517D are programmable units, with measurement memory and RS232 interface. Windows compatible software is included, allowing data transfer and processing on PC, configuration set-up and automated editing of transmitters calibration reports.

    CL516 & CL517 series calibrators can be used in all departments performing test, calibration, on-site measurements: maintenance department, quality control, engineering, commissioning, thermal, electrical, energy, after-sales services. All industrial fields are concerned in which physical signals are processed, and especially temperature signals. They are as well totally suitable for metrological use, in research and development laboratories, in maintenance companies or companies providing technical certification.



    Accuracy is given for a reference junction at 0°C and a load resistance >100Kohm. Using internal reference junction (except for thermocouple type B) from -50°C to full scale gives an additional 0.2°C uncertainty. In measurement mode the sensor uncertainty must be taken into account. Protection: 250Vdc or ac.

    Temperature with RTD Sensor's In measurement mode
    The accuracy is given for a 3 balanced wires sensor connection. The sensors uncertainty must be taken into account. Measuring current: 1 mA for Pt100 and Pt200, 0.1 mA for Pt500 ad Pt1000.

    In simulation mode
    Maximum admissible current: 0.5 to 3" Response time ▓5 ms. Protection: 250 Vdc or ac.




    ADDITIONAL FUNCTIONS
    in measurement and emission/simulation modes
    Temperature unit
    Selection of temperature unit in °C, °F or K by program
    Scaling function Y = f(X) In measurement mode this function allows the user to display a value Y for a different measured value X but linked to Y with relation Y = f(X); in emission mode it allows the user to source a value Y for a different displayed value X but linked to Y via relation Y = f(X).

    Two possibilities:

  • 1st case: the relation between displayed value and measured or emitted value is linear; a and b being constant, function becomes Y = aX + b.
  • 2nd case: the relation between displayed value and measured or emitted value is not linear, but known as a table or a curve. CL516/517 calibrators allow the user to linearize this curve by segments. Up to 9 couples of points can then be determined and entered by keypad.

    In measurement mode
    Relative measurements
    (null function)
    The unit displays the deviation D (read value) between the measured valued M and reference value R, which can be measured (null) or entered by keypad. D = M - R.

    Triggered measurement
    (CL516D and CL517D)
    This function allows:

  • to acquire measurements selected one by one;
  • to start automatic burst acquisition, after set-up of number of measurements and acquisition period;
  • to program a threshold to trigger a burst.

    Measurement memory
    (CL516D and CL517D)
    The acquired bursts are stored in a non-volatile memory which can hold up to 1000 measurements in a total of 128 bursts. These bursts are labeled by position.
    Contents of memory can be recalled and displayed together with additional data such as minimum, maximum and average values.
    These values can be visualized in table form or transferred via RS232 interface to printer or computer.

    In emission/simulation mode
    Simulation values memory
    Curve synthesis
    This function allows storage in a non volatile memory up to 100 emission or simulation values that can be recalled one by one or emitted as a synthesized curve. In that case, emission can be done automatically from one memory position M1 to another memory position M2 with a programmable emission period.

    Steps generation
    This function allows to increase or decrease the emitted value step by step. In automatic mode, amplitude, polarity, number of steps and step duration can be programmed.

    Ramps generation
    This mode allows to generate a variable signal linearly according to time. This ramp can be simple: in that case only amplitude and duration need to be programmed. It can as well be cyclic, which requires set-up of
    - amplitude
    - number of cycles
    - step duration at start value
    - ramp duration from start to end value
    - step duration at end value
    - ramp duration from end to start value

    Transmitters test (only CL517D)
    The CL517D ability to measure and generate simultaneously is extremely useful in transmitter test application. Moreover, an internal software allows to make these tests easy. Test configurations can be stored in memory (up to 20 reference values for each configuration).
    In test CL517D emits successively, or on request, the reference values in the transmitter input and measures in the same time output voltage or current.
    It memorizes results and allows to display reference values and difference with measured values (50 test capacity memory).
    Data can be exported via RS232 bus either to a PC where they will be processed by the process software (see here-after) or to a printer for editing of a calibration report giving reference values, measured values, difference and good or bad result.


    SPECIFICATIONS

    OPERATING CONDITIONS

    Sales & Service 1.800.826.6342
    U.S.A. and Canada
    International Callers;
    Sales & Service; 203.359.1660
    Please E-Mail any comments or suggestions to OMEGA®.

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