Martel Electronics BetaGauge PIR PRO - Manual (Page 7)

6. Set sample rate: This determines how often pressure is
sampled and the display is updated. Choices are 0.5, 1, 3,
and 10 samples/second. Note that 10/sec provides the fastest
response time.
7. Set TARE. This allows you to set a constant offset value,
which is then subtracted from the measured pressure. For
example if a TARE is set at 30 PSI, and the measured
pressure is 37 PSI, the displayed value will be 7 PSI.
A pressure of 27 PSI would be displayed as –3 PSI.
The tare value is set manually with the
▲ and ▼ keys, and is
based on the engineering units and resolution selected for
display. TARE value can be set to the maximum range of the
gauge.
The bar graph will always display the actual pressure based
on the full range of the gauge regardless of the tare setting.
This is done for safety to insure that even with a “0” reading
that pressure is being applied to the gauge.
8. Function Lock: Access to each of the settable parameters
above can be turned “off” once set, to prevent unauthorized
changes to configuration. This is accomplished through a
password protected “supervisory mode”. Press ENTER to
access the supervisory mode, or CONFIG to return to normal
operation.
4. Supervisory Mode
Press ENTER when “FUnC LOCK” is displayed, 0PWRD will be
displayed on the gauge. The password to enter supervisory mode
is 101, set using the
▲ and ▼ keys. Holding a key continuously
will cause the display to advance more quickly for faster setting.
The password is factory set and cannot be changed
1. Your BetaGauge PIR is shipped from the factory with all
setting access “unlocked” or available to be changed.
2. In supervisory mode each of the parameters can be locked or
unlocked using the
▲ and ▼ keys. Select LOC (lock) for
those parameters you do not want to be accessible, and
UnLOC (unlock) for those can be accessed.
3. In order, the functions that can be unlocked, locked or
accessed are:
• Zero function (enable/disable)
• Set pressure units (enable/disable)
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