FUTEK VCal Sensor Verification - Manual (Page 22)

Futek Advanced Sensor Technology – Futek VCal™Documentation Rev. 1.8.0 07/26/05
©Futek Advanced Sensor Technology 2005 22
Under the Functions Tab - The following command buttons are available:
HV OFF/ON - This button toggles High Voltage off and on, which determines whether reading is in mV/V or Volts
R IN / R OUT - These buttons take input / output resistance readings from the sensor connected to the chosen channel.
V / mA - This button toggles between voltage and mA readings. Please note that electrical connections for voltage and current are separate. Also
note that when HV is ON, no VCal™ sensor will be detected, and that ‘Clear Scaling’, mV/V, R IN, R OUT, and shunts will all be disabled.
INS-CAL - This button executes an internal calibration and compensation for the analog to digital converters (ADCs). This procedure compensates
for any changes in temperature and ensures that the instrument is in calibration. This procedure is automatically performed when the Reference
or Test Sensor tests are initialized. It is recommended that the INS-CAL be executed prior to taking readings when VCal™ is to be used as a
display.
RESET - Under normal circumstances you will never need to use this button. It is mainly for factory testing. It causes the ADCs to do a warm reset,
clears any tares, and initiates a calibration cycle.
SHUNTS - EXTERNAL - A shunt resistor must be connected to the shunt terminal, press ‘External’ to activate shunt.
Shunt button must turn yellow to indicate it is on. You must shut off any shunt buttons that are ON, before switching to another shunt
value. Please note that some shunt values will exceed your calibration range and produce undesired results. Please select shunt values which are
appropriate to the current range you are using
.
Main Menu Toolbar Options
Main Menu Toolbar Options
Hide / Unhide The
Ch. 1 Display Window Hide / Unhide The
Ch. 2 Display Window
Display / Arrange - This option provides you some ways to customize the look and function of the channel 1 & 2 displays. You can
drag and drop the displays to anywhere on your screen, by grabbing the blue, title bar at the top of the window with your mouse. You
can also hide the Sensor, Filter, and Functions tabs, leaving just the display itself, by simply clicking in the display portion of the window.
Please note that when the background of the display turns
RED this indicates an “Over Load Condition”, and when the background of the
display turns YELLOW it indicates an “Over Range Condition.”
Please note that an “Over Range Condition”
indicates a load outside of the range of the sensor
is being applied and care should be taken.
An “Over Load Condition” is more severe (as
indicated by the red screen). This indicates that a
sensor is in a condition of Overload and is in danger
of being damaged.