3D Instruments Accu-Cal Platinum Instruction Booklet page 5

OPERATING INSTRUCTIONS
3. In supervisory mode each of the
parameters can be locked or unlocked
individually using the ▲ and ▼ keys.
Select LOC (lock) for those parameters
you do not want to be accessible, and
UnLOC (unlock) for those that can be
accessed.
4. Use the CONFIG key to scroll through
the above choices, and the ▲ and ▼
keys to lock and unlock features. Press
CONFIG to continue scrolling through
the parameters, pressing ENTER at
any point saves your settings and
returns the gauge to normal operation.
When a function is "locked, it cannot
be accessed or changed from its cur-
rent state. To change a locked function,
enter the supervisory mode, and
unlock the function. Once it is
changed, you may enter supervisory
mode to lock access again.
5. Setting a custom engineering unit or
scale: The last menu choice in supervi-
sory mode is SET FACTR. This allows
you to set a multiplier factor from 0.001
to 100, creating a custom scale. The
set factor will be multiplied by the PSI
measured, the result will be displayed.
By setting a factor of 25, a 40 PSI
pressure would display as 1000 (40 x
25). The engr. unit displayed on the
Accu-Cal Platinum will be "Cust".
Backlight Operation
Press the ENTER key to enable the back-
light. Press the ENTER key to turn it off.
Zeroing the Gauge
Press and hold the ZERO key for 1 - 2
seconds until the word HOLD disappears
from the LCD.
Note: Failure to depress the ZERO key
until the word HOLD disappears will result
in the gauge not being re-zeroed. To
ensure accurate measurements, the
extent of unit zero adjustment is apprx.
± 5% of full scale.
Note: The gauge should always be re-
zeroed immediately before measurements
are taken. The zero will fluctuate until the
temperature is stable. This will be more
noticeable on low pressure ranges. If the
gauge can not be zeroed, contact factory.
MAX/MIN Function
The Accu-Cal Platinum stores minimum
and maximum pressure values in memory.
Pressing the MAX/MIN key once will dis-
play the maximum pressure stored in mem-
ory. Pressing the MAX/MIN key again will
display the minimum pressure stored in
memory. Press the MAX/MIN key again to
return to normal (live display) operation. To
clear the MAX/MIN memory registers,
press and hold the MAX/MIN key for 2 or
more seconds until "CLr" is displayed. If a
value of "OL" (over limit) appears in the
MAX register, this indicates that the gauge
experienced pressure above 120% of span.
Note: The rate of MAX/MIN register
updates is determined by sample rate and
values will be lost when the unit is shut off.
Analog Bar Graph
The 20 segment analog bar graph located
at the bottom of the LCD display indicates
the applied pressure level expressed as a
percentage of the full range of the gauge.
Note: If a TARE value has been pro-
grammed into the gauge, the numeric
value indicated on the LCD display will
not reflect the true pressure being applied
to the gauge.
Battery Life
Battery life is approximately 1500 hours
(60 days) of continuous use with the back-
light off and at a sample rate of 3/sec. With
intermittent use, batteries could last a year
or more. There is a "low battery" icon in
the upper left of the display. It will appear
when battery level is low at approximately
3.3 volts. The unit will shut itself off when
the battery voltage drops to 3.0 volts.
Replace batteries per recommendations
found in the next section of this manual.
KT-099
06/07
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