Logitech Electronics 2000 MKII Series User Manual
Counter/tachometer
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- User manual (14 pages) ,
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- User manual (19 pages)
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Table of Contents
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Summary of Contents for Logitech Electronics 2000 MKII Series
- Page 1 2000 ™ MKII SERIES Counter/ Tachometer Model 2000CT User Guide ...
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Page 2: Table Of Contents
Contents Specification ............3 General Description . -
Page 3: Specification
Specification Display 7-segment red LED, 10mm high RATE — 6 Decade TOTAL — 7 Decade Decimal point Programmable from front panel Rate Accuracy 0.05% with a square wave at 1V peak Signal Inputs Signal A Normal Sensitivity 180mV—10V (protected to 100V) High Sensitivity Option 12mV—1V (protected to 100V) Frequency... -
Page 4: General Description
General Description 2000CT Combined Counter/Tachometers* are 6-decade seven segment LED display instruments based on the industry standard Intel 80C51 series 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 7 and Electromagnetic Precautions on page 16). 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 the RUN mode, it will display the measured signal, the value of which will depend whether the instrument is set to display RATE or COUNT. Momentarily pressing this switch once puts the instrument into the SET mode and activates the DP, 0–9 ;... -
Page 7: Rear Panel Terminals
Rear Panel Terminals Low Alarm High Alarm Signal Common " Connected directly to earth wire in mains cable 10 to 13v @ 80mA (unregulated D.C. output for sensors) Reset Input for TOTAL Protection input for Meter Factor Not used Common Rate Signal input* Common... -
Page 8: Programming The Instrument
Programming the Instrument Calculating a RATE and a TOTAL Factor The value displayed for RATE is calculated as : RATE = N x Scaling Value N = number of pulses counted in time T T x FACTOR T = measurement time (usually 1 sec) The value displayed for TOTAL is calculated as : TOTAL = C x Scaling Value C = total count. -
Page 9: Factor
If the display shows RATE TOTAL when power is first applied to a not-yet-programmed instrument, it is because the link is missing (see also the section entitled Alteration of Programmable Parameters on page 12). To change a decade value press the button located immediately below the digit. The value will increment from and then return to 0. -
Page 10: Iii - Total: Decimal Point Position
Alternatively, if a very large value is anticipated, it may be appropriate to set the scaling factor to 0.1, 0.01, etc. to ensure that the displayed value will not overflow the display. iii — TOTAL: Decimal Point Position (DISP. When this parameter is first displayed, the display will show ------ with no decimal point showing. -
Page 11: Full Scale (Fs)
ix — Full Scale (FS) The setting for Full Scale defines the rate value for which the analogue output will be at maximum (5V or 20mA depending on option originally ordered). When all parameters have been programmed it is possible to step through all settings by repeatedly pressing the centre right hand button (FUNC). -
Page 12: Alteration Of Programmable Parameters
Alteration of Programmable Parameters The programmable parameters can be accessed at any time by momentarily pressing the RUN/SET button once. This will cause the mode to change from the normal RUN mode to the SET mode. The unit will normally display S E T …. -
Page 13: 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 2000CT- _hb v3.1 01/2020 ! 1 3 MKII... -
Page 14: Connection Diagrams - Typical Applications
Connection Diagrams – Typical Applications Variable reluctance Magnetic Pickups Single-input operation Dual-input operation 2000CT- _hb v3.1 01/2020 ! 1 4 MKII... -
Page 15: Alarm Output Connections
Alarm Output Connections Alarm connections with external power supply 2000CT- _hb v3.1 01/2020 ! 1 5 MKII... -
Page 16: 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 17: Warranty
Tachometers carry a two year warranty that is only valid where there is no MKII SERIES damage caused by accident, negligence, misapplication, or repairs/modifications attempted by unauthorised personnel. The warranty only extends to the original user. Copyright © Logitech Electronics Limited 1994 to 2017 Document No: 2000CT- _hb v3.0 July 2017...