Parr Instrument 6725 - Manual (Page 31)

6725
Semi-micro Calorimeter Instruction Manual
5-4
Jacket Temp. Source:
Press this key to display a menu that allows the user to select the source for the jacket
temperature used for tests.
“Other” Multiplier:
Press this key to display the Other Multiplier dialog box, where the user can enter a final
multiplier to be used when the reporting units are set to “Other”.
Calibrate Touchscreen:
This key prompts the user to touch the screen at predefined points in order to facilitate
touch screen calibration. It is important that a touch screen stylus, rather than a finger,
be used in order to realize an accurate calibration.
LCD Backlight Timeout:
The unit is equipped with an automatic circuit to shut off the backlight when it is not
being used. The back light will shut off if there is no keyboard activity for the number of
seconds entered. Pressing any key will automatically turn the back lighting ON. A
setting of 0 will keep the backlight ON at all times.
LCD Backlight Intensity:
This key accesses a sub-menu with a slide control which adjusts the brightness on the
LCD display for optimum viewing.
Print Error Messages:
When turned ON, all error messages will be printed on the printer as well as displayed
on the screen. When turned OFF, messages will only display on the screen.
Language:
Steps the Calorimetric Thermometer through the installed operating languages.
Spike Controls
Use Spiking:
When set to ON, the Calorimetric
Thermometer will prompt for the weight of
the spike added and will compensate for
the heat of combustion in the calculations.
Heat of Combustion of Spike:
The heat of combustion of spike is
entered on sub-menu keyboard in cal/g.
Use Fixed Spike:
When set to ON, a constant amount of
spike is to be added to each test.
Note:
The precision of tests with fixed spikes can be no better than the repeatability of the
spike weight.