Monarch Instrument TACH-4AR User Manual
Page 8

COUNT MODE
This is a basic counter mode. Each time the POWER button is pressed,the
value displayed is incremented by 1. The display is reset to zero with the
RESET button.
POWER/LOCK
Increments the count by one.
RESET/LOCK
Resets the counter to 0.
LEFT ARROW (")
Turns the LCD back light on for 60 seconds
(assuming the back light is not already on)
TIMER MODE
This is the Stopwatch mode. There are two basic modes of operation,
“Auto” and “Manual”, selected in the MENU. To change between Auto
and Manual operation, press the MENU button so “MENU” is displayed.
Press the UP ARROW (!) until “TIMER” is displayed. Press the LEFT
ARROW (") to show the current option. Press the LEFT ARROW (")
again to change to the other option. Finally, press the RECALL (STORE)
button the save the change.
The MANUAL mode functions like a Stopwatch. When TIMER mode is
selected, the display shows 00:00:00. The timing is started and stopped
by the POWER button. Up to three Lap times may be stored using the
RECALL (STORE) button while the timer is running. Lap times may be
recalled by pressing the RECALL button when the timer has stopped.
The timer may be reset to 00:00:00 with the RESET button. When the
timing is started or the RESET button is pressed, the memory values are
cleared. When the Lock Chevron is not displayed and no button is pressed
for 60 seconds, the unit will automatically shut off.
The AUTO mode functions similarly to the MANUAL mode with the
exception that the internal optics (or Remote Sensor with the
TACH-4AR) can be used to start and stop the Timing function. The
POWER button is also operational in this mode so that the user can start
the timer by pressing the POWER button, then have the timer stopped
when an item passes through the light beam. Similarly, the timer can be
started by beam interruption and ended by the POWER button.
POWER/LOCK
Starts and stops the timer.
RECALL/STORE
While Timer is running, pressing RECALL will
store lap times up to a maximum of three laps.
When the Timer is stopped, pressing RECALL will
display stored lap times.
RESET/LOCK
Resets the timer to 00:00:00 and clears the stored
lap times.
LEFT ARROW (")
Turns the LCD back light on for 60 seconds
(assuming the backlight is not already on)
CHANGING THE DECIMAL POINT
The instrument can work with either a fixed or floating decimal point.
The fixed decimal point always displays the value to the nearest whole
number and is right justified. The floating point mode always displays
with at least 5 digits of accuracy. To change the current setting, go into
the MENU mode by pressing the MENU button. Press the UP ARROW
(!) button until “DEC PT” is displayed. Press the LEFT ARROW (")
button to show the current setting. Press the LEFT ARROW (") button
again to change the decimal point mode. Press the RECALL (STORE)
button to “save” the selected mode.
BACK LIGHT OPERATION
The back light can be turned on for 60 seconds by pressing the LEFT
ARROW (") button in most modes. It can also be programmed to be on
permanently by selecting the MENU mode with the MENU button. Press
the UP ARROW (!) button until “LIGHT” is displayed. Press the LEFT
ARROW (") button to show the current status of the back light. Press
the LEFT ARROW (") button one more time to change it, then press the
RECALL (store) button to save it.
SERIAL NUMBER
Press the MENU button, then press the UP ARROW (!) button until
“SERIAL” is displayed. Press the LEFT ARROW (") button to display
the serial number.