Ada ZCТ 777 [13/46] Zct 777

ZCT 777

MEASUREMENT FOUNDATION

ZCT 777

Standard Deviation(Sdev.)

The sample standard deviation is a statistic that measures how “spread out” the sample is around the sample mean.

Standard deviation calculates in the following way:

Variance S

= ∑(x-

)

/(n-1)

Auto power off (menu item 2.7)

You can disable Auto-power-off via MENU system.

Limit Function (menu item 3)

Limits can be entered during and after a series of measurements. There is practical use for limits.

Any reading which falls outside the set tolerance limits will be registered by a warning indication:

H: reading above HI limit

L: reading below LO limit

Please set the limit values using MENU system for reading above (menu item 3.1.1) and for reading below (menu item

3.1.1). Use buttons ▲/▼.

Delete Functions (menu item 4)

In MENU system, you can nd following function:

Delete current data: If you nd the last measuring reading is wrong, you can delete it via this function (menu item 4.1). At

the same time, the statistics will be updated.

Delete all data: You can delete all data and statistics of the Current Work Mode (menu item 4.2).

Delete Group data: this function includes “Delete all data” function (menu item 4.3).