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Main Menu
5.7.3.4.3 READ FILE (F3)
MAIN MENU | MEASURE MENU | RECORDING MENU |
The Read File function key allows the user to view measurements that have been recorded in a le on the USB
memory device. If a USB device has not been inserted in the front panel, the user will be prompted to do so.
A list of les appears on the screen and the user selects the le to be opened using the arrow keys and then
opens the le by pressing the ENTER key. When the le is opened, the contents are displayed and the arrow
keys are used to move through the le to view the data.
5.7.3.4.4 WRITE FILE (F4)
MAIN MENU | MEASURE MENU | RECORDING MENU |
The Write File function key is used to copy data from internal memory onto the USB memory device.
The user may select a dataset using the Left and Right arrow keys. ALL DATA (in the DATA SET eld) can be
used to transfer all datasets to the USB device. The USB device lename can be entered by moving the cursor
to the USB FILE eld and pressing the ENTER key to display the Alpha-Numeric Interface.
If the data set and lename have been selected, the user presses CONTINUE (F1) to start the transfer. If the
le already exists, the user will be prompted to continue and append the data to the existing le.
5.7.3.4.5 ERASE DATA (F5)
MAIN MENU | MEASURE MENU | RECORDING MENU |
The Erase Data function key is used to erase a selected data set or all data sets, using ALL DATA at the end of
the list, from internal memory. The user may select a data set using the Up/Down arrow keys and pressing the
ENTER key. Upon pressing CONTINUE (F1), a warning message will appear and the user must conrm the
action to continue. Pressing the EXIT key or CANCEL (F2) function key at any point during this process exits
the menu without deleting data.
Important: Do not turn power off while data is being erased because the internal memory les may be
lost.
5.7.3.5 ZERO-POWER MEASUREMENT (F5)
MAIN MENU | MEASURE MENU |
The Zero-Power function key is used for conguring and performing zero-power measurements.
Zero-Power Measurement Description
When measurement current is passed through a temperature probe sensor, the sensor self-heats and creates a
measurement error. Probe self-heating errors vary by probe construction, current levels, and ability of the mea-
surement medium to dissipate heat from the probe. Measurements in air are especially prone to self-heating.
The Zero-Power Measurement function can be used to remove measurement error caused by self-heating. It
can also be used to measure the error due to self-heating.
The Zero-Power Measurement function automatically acquires the measurements necessary to determine a
probe’s zero-power resistance, temperature or ratio. This is done by measuring the probe at two levels of cur-
rent (nominal current and 1.4142 times nominal) and then using these measurements to calculate the value at
zero-power.
While the Super-Thermometer is performing a zero-power measurement, the timing is set to produce a
measurement every two seconds and the digital lter is disabled. The statistical average is calculated from all
measurements acquired during the Measure Time.