Martel Electronics BetaGauge PI PRO - Manual (Page 8)

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5. Setting a custom engineering unit or scale: The last menu choice in
supervisory 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.
For example: 40 PSI is the equivalent of 1000 lbs of product in a
tank. You want to display the product weight , using a 100 PSI
gauge. By setting a factor of 25, a 40 PSI pressure would display
as 1000 (40 x 25). The engineering unit displayed on the
BetaGauge PI will be “Cust”.
5. Normal Operation
Turning the backlight on and off: Press the ENTER button.
Zeroing the display: Press and hold the ZERO button.
Note: For absolute versions of the gauge pressing the zero key will
prompt the user to enter a barometric reference pressure. Use the
▲
and
▼ arrow to adjust the reading as required. Then press ENTER.
MAX/MIN: The BetaGauge PI stores minimum and maximum
pressure values in memory. Pressing the MAX/MIN button once will
display the minimum pressure from memory. Pressing the MAX/MIN
button again will display the maximum pressure from memory. After
about 2 seconds, the gauge returns to normal (live display) operation.
To clear the MAX/MIN memory registers, press and hold the MAX/MIN
button for 2 or more seconds until “CLr” is displayed.
The analog bar graph at the bottom of the display indicates the applied
pressure level relative to the full range of the gauge. Keep in mind that
if a TARE value has been programmed into the gauge, the displayed
pressure will not reflect the true pressure applied.
6. Changing the Batteries
WARNING
Explosion hazard
Batteries must only be changed in an area known
to be non-hazardous.
BetaGauge PI
Grasp the face ring on the BetaGauge PI, turn it approximately ¼ turn
counterclockwise and remove. Note: For ATEX certified versions
remove the two screws on the rear of the case to release the front
plate. The face of the gauge can now be lifted to expose the battery
holder. Take off the battery hold clip and remove the batteries. Install
three AA alkaline batteries noting proper polarity. Note: Use ONLY AA
alkaline batteries and be sure to reinstall the battery holder retaining