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200 MKIII SERIES
Tachometers
Model 200T/DC
User Guide
Страница 1: ...1 200 MKIII SERIES Tachometers Model 200T DC User Guide ...
Страница 2: ...maximum with single input 200Hz in Reed Mode Ratio Mode 1Hz minimum standard model 20kHz maximum with dual inputs 200Hz in Reed Mode Impedance 15kΩ minimum Accuracy 0 01 with square wave at 1V peak Optional Outputs 2 x Configurable Alarms 60Vdc maximum 200mA maximum open collector Digital Pulse Pulse to supply 200mA maximum Analogue Voltage Current User selectable as 0 5V or 1 5V or 0 10V or 2 10V...
Страница 3: ...re available with factory fitted options which must be specified when ordering These include alarms analogue voltage and current outputs and digital output See the Specification section for more detail on these options Additionally Logitech will customise the programmed operating modes of these Tachometers to suit specialised applications Many variations on the standard software have been develope...
Страница 4: ... menu all 200 Series MK3 models have a lock terminal marked LK on the rear panel A wire should be connected between LK and 0V in order to lock the unit If the unit is powered on when the connection is made the power must be cycled in order to activate the lock When the lock LK terminal is connected to 0V on power up the touch switches are disabled To release the lock disconnect the LK input from 0...
Страница 5: ... Analogue Current Output 4 NC No Connection Vo 200TA 200TAL Analogue Voltage Output 5 LK Lock input connect to 0V to disable front panel touch switches and prevent the settings from being tampered with Dout 200TD 200TDL Digital Pulse Output 6 NC No Connection Al1 200TL 200TAL 200TDL Configurable Alarm Output 1 Open Collector 7 NC No Connection Al2 200TL 200TAL 200TDL Configurable Alarm Output 2 Op...
Страница 6: ...r If the RATIO function is needed then the mode setting should be changed from A to A B and the displayed value is then calculated as follows MUL D Ra Rb x S DIV D Ra Rb S Calculating a scaling factor The displayed value is calculated as D R x S or D R S where S is the scaling factor and R is the measured rate of input signal in pulses per second pps or Hertz Hz The scaling factor is most easily c...
Страница 7: ...tered as described above 1 MODE Set frequency mode Default A Press increment to select from the below options A Frequency A A B Ratio A B 2 IPUT Set input mode Default HS Press increment to select from the below options STD Standard sensitivity from 100mV HS High sensitivity from 10mV REED Reed switch max input frequency 200Hz 3 CALC Set calculation mode Default DIV Press increment to select from ...
Страница 8: ...rm will be activated Press select to select digit and increment to change value The decimal point position is locked to the display value set under DSDP 7 AL 2 200TAL 200TL 200TDL only Set alarm output 2 Press increment to select from the below options HI High alarm output switched to 0V when scaled frequency value value LO Low alarm output switched to 0V when scaled frequency value value Press se...
Страница 9: ...point position can be altered by pressing increment 11 DOUT 200TD 200TDL only Set the digital frequency scaling factor This can be set between 0 digital output off and 0 5 digital output frequency equal to half of the input frequency Values greater than 0 5 will be set to 0 5 automatically Press select to select digit and increment to change value After cycling through all four digits the decimal ...
Страница 10: ...sitivity ranges from 0 least sensitive to 63 most sensitive Press select to reduce the value or increment to increase it After 2s of neither button being touched the unit will apply the selected sensitivity value and return to run mode It is recommended that the sensitivity level is set only as high as necessary to obtain a steady signal This minimises the risk of detecting spurious signals ...
Страница 11: ...kup to the common 0V terminals shown as the black wire below Connect the other wire from the magnetic pickup to the input Adjust sensitivity to ensure that the correct value displayed at the minimum rotational speed Single Channel Operation Dual Channel Ratio Operation Vs IPb 0V IPa 0V NC NC NC NC NC 0V Gear Wheel or Flowmeter Magnetic Pickup Screen Vs IPb 0V IPa 0V NC NC NC NC NC 0V Gear Wheel or...
Страница 12: ...djust the sensitivity until pulses are correctly detected As the low output from the sensor may be offset from 0V the output may not be correctly detected at high sensitivity values Reduce the sensitivity until the output is detected correctly Reed Switch Set input type IPUT to reed switch REED Connect one switch terminal to the supply voltage Vs and the other to the input terminal IPa for single ...
Страница 13: ...ins leads are routed as far as possible from all cables carrying power to such equipment and that the supply should if viable be taken from a clean source Where this is not possible it is advisable to use a good quality mains filter mounted as close to the instrument as possible ensuring that the cable between the filter and the instrument is kept separate from any cables carrying high levels of c...
