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Logitech Electronics 2000 MKII Series User Manual

Timers
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2000
™
MKII SERIES
Timers
Model 2000S
User Guide



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Summary of Contents for Logitech Electronics 2000 MKII Series

  • Page 1 2000 ™ MKII SERIES Timers Model 2000S User Guide 
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  • Page 2: Table Of Contents

    Contents Specification ..........3 General description .

  • Page 3: Specification

    Specification Display 6 decade and sign 7-segment red LED, 10mm high Decimal point Programmable from front panel Control inputs Start, Stop and Reset Requires sink to 0V of 220Ω maximum Minimum duration of control signal is 0.3ms Control Outputs Alarm 1 and Alarm 2 (Model 2000AS only) Open Collector 200mA 60V maximum DC Voltage 10V to 12V nominal unregulated @100mA Scaling and Offset...

  • Page 4: General Description

    General Description 2000S 2000AS ™ Timers are versatile six decade (plus sign), fully programmable MKII SERIES digital timers with a large 10mm led display and based on the industry standard 80C51 series architecture microprocessor. They are built into half DIN (96 mm x 48 mm) panel mounting housings and can be supplied to operate on 115V or 230V AC, or 24V DC power supplies (see Transformer connections on page 5).

  • Page 5: Safety Information For Eu Users

    Safety Information for EU Users WARNING This instrument must be earthed when powered from a mains supply (see also Mains Earth on page 8). Refer to the rating label for the pre-set voltage and ensure that the instrument voltage corresponds to the intended supply voltage. Important: The wires in the power lead fitted to mains instruments are coloured in accordance with the following code: Green...

  • Page 6: Switches And Connections

    Switches and Connections RUN/SET Switch This switch is located in the top right hand corner of the Front Panel. When the instrument is in RUN mode the Timer will display the measured signal. Pressing this switch once changes the Timer to the SET mode and activates the DP, 0–9 and the + (polarity) switches (see the section Setting a Scaling Factor on page 8).

  • Page 7: Rear Panel Terminals

    Rear Panel Terminals LOW Alarm (Open Collector 200mA 60V max.) Model 2000AS only HIGH Alarm (Open Collector 200mA 60V max.) Model 2000AS only Common " Mains Earth +10V d.c. (unregulated) @ 80mA Reset Alarm (if Latching Alarm is specified) Stop Start Common Not used...

  • Page 8: Programming The Instrument

    Programming the Instrument Calculating a Scaling Factor The scaling factor in the 2000S 2000AS is set as the number of milliseconds per displayed unit - ignoring the decimal point in the display. For example, if for each fifteen (15) milliseconds of time you want the display to increment once, the scaling factor should be set to fifteen (15).

  • Page 9: Setting The Alarms - Model 2000As Only

    subtract a constant from the timed interval to account for mechanical delays in other parts of the system. Setting the ALARMS - Model 2000AS only After setting the OFFSET, if the function button FUNC is pressed once again the display will show AL 1 for 1 second followed by the ALARM 1 value contained in memory.

  • Page 10: Output Options

    Output options DC Analogue: 0–5V*, 0–20mA, and 4–20mA outputs When Timers are fitted with any of these options the output is available via a Red (+ve) and a Black (- ve) socket on the Rear Panel. The outputs are proportional to the display reading and not the input signal. With the Timer in the SET mode, each depression of the FUNC switch will step through the parameters in the following sequence: SCALE...

  • Page 11: Diagrams

    Diagrams Front Panel Layout Note: On instruments with the SINGLE switch set option only the FUNC switch is accessible unless the bezel and front panel are removed Rear panel layout 2000S MKII 2000AS MKII 2000S- v3.1 01/2020 ! 11 MKII...

  • Page 12: Alarm Output Connections - Model 2000As Only

    Alarm Output Connections - Model 2000AS Only Terminals +10V @ 100mA 2000AS Timer 1 (AL1) Relay 2 (AL2) Alarm Connections with External Power Supply - Model 2000AS Only 2000AS Timer Terminals 1 (AL1) Power 2 (AL2) Supply Relay 3, 9, or 11 2000S- v3.1 01/2020...

  • Page 13: Additional Information

    Additional Information Electromagnetic Precautions Logitech have designed in a great deal of noise immunity into the product in accordance with EN5001-2 and EN5002-2 (radiated emissions, conducted emissions, ESD, radiated susceptibility and fast burst transient testing) However it is still vital to use good EMC (Electromagnetic Compatibility) techniques on installation of both this and other associated electronic equipment and sensors in order to ensure reliable operation.
  • Page 14 Copyright © Logitech Electronics Limited 1994 to 2017 Document No: 2000S- _hb v3.0 August 2017 MKII MADE IN THE UK e: sales@logitechelectronics.com t: +44 (0)1952 820444 Design and Manufacture of Electronic Systems and Instrumentation. Supply of Sensors and Transducers www.logitechelectronics.com...

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