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Model 640 & 640CC Instruction Manual
D01206676
Revision A February 2016
15
Instrument Setup
6.3
This button takes the user to the Instrument Setup Screen. From this screen the user
may calibrate temperature, consistency, gel strength (optional) and pressure
(optional). Additionally, the user can ARCHIVE all tests on the consistometer to
the USB memory stick or network location. This function will copy all tests in
current C:/FANN data folder and paste them into the selected folder, networked
drive, or USB. An AUTO EXPORT function allows the user to select a folder or
network storage where any test will be automatically copied to after the test is
stopped.
Calibrate Temperature/Calibrate Pressure
6.4
This button allows the user to select the calibration routines. When this screen
appears, connect a temperature calibrator to the thermocouple input on the
instrument. Enter a lower-limit temperature value on the calibrator. Touch the Enter
Low Value parameter box and then enter the correct temperature value for the Low
Data Point using the touchpad at the right. The raw value is the signal read directly
off the I/O hardware and it should change as the calibration signal changes. When
the low data point has been entered, press the SAVE LOW VALUE button. The
user can now enter the high data point on the calibrator and then again on the
touchscreen as before. The raw value should be different for the low and high data
points or there will be a computation error. After the high data point has been
established, press the SAVE HIGH VALUE button. The user can now vary the
calibration signal and see how the calibrated signal compares with that of the
calibration device in the VERIFY NEW CALIBRATION box. If the signals
compare favorably, press the Accept button to save the calibration. The calibration
values will be stored in a configuration file and take effect upon exiting the
Instrument Setup menu.
Sample Rate
6.5
This menu allows the user to select a sampling rate for the Data Acquisition
program. Rate is given in number of seconds between samples. To save data space
and achieve acceptable test resolution, a sample rate of 30 or 60 seconds is
recommended.