Tachometer Frequently Asked Questions

■Measurement conditions

<Example of TM-3100 series rear panel>

<Wiring method>

■Basic button operation

• A short press of the "MENU" button will return you to the previous item.

• Press and hold the "MENU" button to switch to measurement mode (display of measured values) from any position.

■Settings

• INPUT (Input settings)
  The [INPUT] section is used to configure settings related to input signal acquisition. Here, we will configure it as follows:

  INPUT TYPE	DC
  LOW PASS FILTER	OFF

• After completing the settings, press the [SET/NEXT] button.

  

  

• MEASURE (Settings for measurement functions)
  In [MEASURE], you set the measurement method, measurement items, and their conditions. Here, we will assume that one reflective sticker is attached to the shaft of the rotating body, and set the parameters as follows.

  MEASURE MODE	NORMAL
  MAIN OBJECT	ROTATION
  ROTATION UNIT	r/min
  PULSE	1 (Number of reflective stickers)
  FACTOR	1.00000 × 10E+0

  

• FUNCTION (Display method and measurement start/stop)
  In [FUNCTION], you configure the display method and settings related to starting and stopping measurements. Here, we will configure the settings as follows:

  AUTO ZERO TIME	OFF
  MOVING AVERAGE	OFF

  

• DISPLAY (Display screen settings)
  In [DISPLAY], you can configure settings related to the number of digits displayed and the display update. Here, we will set it as follows:

  DISPLAY	1 LINE
  D.P. POSITION	OFF
  DIGIT FIXED TO 0	OFF
  DISPLAY UPDATE	1.0s
  BRIGHTNESS	MID

• OUTPUT (BCD, COMP, ANALOG output settings)
  The [OUTPUT] section allows you to configure settings for BCD output, comparative output, and analog output. Here, we will configure them as follows:

  BCD OUTPUT	MAIN (Displayed Value)
  BCD MODE	CONTINUE (Continuous updates)
  COMP MODE	UPPER LOWER (Optional settings for each of COMP1, 2, and 3) UPPER: Measured value ≥ Set value LOWER: (Measured value < Set value)
  COMP UPPER （LOWER）	Set the judgment value arbitrarily for each of COMP1, 2, and 3.
  ANALOG OUTPUT MODE	VOLTAGE
  ANALOG VOLTAGE RANGE	0 ～ 10V
  ANALOG ZERO	000000
  ANALOG FULL	You can set the display value to 10V as you like.
  ANALOG UPDATE	10ms (Due to the periodic nature of the calculation, if the signal is slow, the voltage change will also be slow.)

• OTHER (Panel condition preservation)
  In [OTHER], you configure settings related to saving/loading configuration conditions, RS-232C, and the option list. The settings are saved in backup memory, but for safety, they are also saved in COND1.

  

  [Regarding saving settings] Backup memory Menu settings are saved in backup memory. When the power is turned on, the settings from backup memory are automatically read. CLEAR This will restore the contents of the backup memory to their initial settings (factory default). CONDITION The backup memory settings can be saved to COND1. You can load the data into backup memory using the LOAD operation.

• Return to measurement
  Press and hold the [MENU] button. You will return to the measurement screen and begin the measurement.