YOKOGAWA TM20, User Manual, Page: 93 / 111

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IM 54011-E
7 Other Useful Functions
■
To enable only the panel keys (yellow keys) requied for mesurement
(FUNC lock function)
The main unit has a function called the FUNC lock function that enables only the panel keys
required for measurement. The keys used with this function are given below :
• [MEMORY]
• [
▼
] and [
▲
]
• [CH]
• [LOGGING]
• [POWER]
• [ESC]
• [SET]
• [>], [<], [1], [2], [3], and [0] (only if the collector function is on)
This function can also be used when the setup information on the main unit is not to be
modified due to an operation error.
This function can be set by pressing the [FUNC], [9], and [6] keys, in order when the Home
screen is displayed.
When this function is active, the “Key” mark is displayed in the upper right corner of the
screen.
[TIP]
To cancel this function, hold down the [ESC] key for about two seconds.
■
To automatically turn off the power supply if no operation is performed
in a specified period of time (Auto Power Off function)
The main unit has a function called Auto Power Off to automatically turn off the power if the
main unit is not used in a given period of time (5, 10, 20, or 30 minutes).
This function is useful if you forget to tun off the power.
This function can be set by pressing the [FUNC], [9], and [4] keys, in order when the Home
screen is displayed.
When this function is active, the “AUTO OFF” mark is displayed in the upper right corner of
the screen.
■
To determine how much more data can be recorded
The main unit has a function to display how much more measurement data can be recorded
for the tag or log on the screen.
To activate this function, press the [FUNC], [3], and [1] keys, in order when the Home screen
is displayed. Press the [SET] key to display the remaining memory capacity. If the [SET] key
is pressed again, the number of measurement data pieces that can be used with the collector
function, if selected, is displayed. Furthermore, if the [SET] key is pressed another time, the
number of measurement data pieces that can be used with the logging function, if selected, is
displayed.
■
To see the number of measured data pieces recorded on the tag or log
The main unit has a function to display the number of measured data pieces recorded on the
tag or log.
To activate this function, press the [FUNC], [3], and [3] keys, in order when the Home screen
is displayed.