Martel Electronics BetaGauge 330 - Manual (Page 7)

Figures 2A and 2B show the location of the keys. Table 2 describes the function of each key.
Figure 2A
Keypad (Electric Pump Versions)
Table 2 Key Functions
No. Name Description
1 Function Keys These are soft keys used to configure the calibrator
2 ON/OFF Key This key is used to turn the calibrator on and off
3 ZERO Key This key is used to zero pressure measurements
4 Arrow Keys Used to control mA source/sim. and to set pump and %
error limits
5 Home Key Return to main menu screen
6 Pump Key Push to run pump (Electric pump version)
6 Backlight Figure 2B only - for manual pump version
Note: When the calibrator is turned on by pressing the ON/OFF key, it will go through a
short startup self-check routine. During that routine, the display shows the current
firmware revision level, auto shutdown status and the range of the internal pressure
sensor. The calibrator requires a maximum of 5 minutes warm-up to rated accuracy.
Large changes in ambient temperature may require a longer warm-up period. See
section 2.3 for instructions on zeroing the pressure sensor displays. Pressure ranges
should be zeroed each time the calibrator is started.
Figure 2B
Keypad (Manual Pump Version)
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