FUTEK IHH200 Digital Display User Manual
Page 18
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IHH200 Manual 2.5 - Page 18
Configuration Menu Parameters
SEt ZEro
Parameter
The
SEt ZEro parameter is meant to be accessible to the user. It allows the removal of fixed display offset values
from the display, so that the GROSS and TARED features can operate from a zero point. This may also be
considered as a manual tare facility. To zero the display, simply enter the value that you wish to subtract from the
display in the
SEt Zero parameter. i.e. if the display reads 000.103 and you wish it to read 000.000,then enter
000.103 in the
SEt ZEro parameter.
Set Zero may also be achieve by pressing Gross/TARED and Shunt Cal button simultaneously.
Different values can be set for each RANGE.
SEt rAtE Parameter
The
SEt rAtE value sets the display update rate. The options available are 25Hz, 10Hz, 3Hz, 1Hz and
0.5Hz. Different updates rates can be set for each RANGE.
The 25Hz rate only updates at this rate when in the PEAK or VALLEY mode. When in normal display mode it has
been limited to a 3Hz update, as the digit fluctuations are impossible to view with the human eye.
The 10Hz, 3Hz, 1Hz and 0.5Hz rates update the display every 100mS, 300mS, 1000mS and 2000mS
respectively. The IHH200 when it leaves the factory is set at 3Hz.
SEt OVEr Parameter
The
SEt OVEr parameter allows the user to set a visual alarm. The value that is entered is the display value that
you want the alarm to activate at. When the alarm is activated the word
OVErLOad appears on the screen. To
remove the alarm, the display value must be reduced to a value that is lower than that set in the
SEt OVEr
parameter. This can be very useful as a safety feature, or simply as a quick indication of when a preset level has
been reached.
This value entered can be anywhere over the entire display range, so there are no limitations. Different values and
settings are available for each RANGE.
SEt OPEr Parameter
The IHH200 has a special power saving mode, which can be enabled or disabled within this parameter, pressing
when asked whether you wish to select
P SAvE? will put the IHH200 into power save mode for the RANGE
selected. Pressing
will de-activate the power save facility.
When the power save facility is activated, battery life is conserved by pulsing on the excitation voltage to the
sensor. As a result the accuracy is reduced, as is the update rate. When in this mode, the quickest update rate is
3Hz and the accuracy of the display is reduced to 1 digit in 10,000. It is important to note these limitations when
deciding whether to use the power save facility. However, it is also possible to set one RANGE with power save
activated and the other without.
The benefit is that the battery life, based on a 350Ω sensor bridge being connected, increases from 45 hours to
450 hours.
It is also important to remember that when the IHH200 is re-calibrated with a sensor, the power save facility will
be automatically turned off. The power save facility will therefore need to be re-activated after calibration has been
completed.