Martel Electronics BetaGauge 301 - Manual (Page 6)

Table 1 Process Measurement Inputs
No. Name Description
1, 2 Input Terminals These terminals are used to measure current, voltage and
a contact closure for switch test.
3 P1 Pressure Port This is the connection for the internal sensor P1
4 Serial Interface This is used to interface to optional external modules or
optional serial control.
Figure 2 shows the location of the keys. Table 2 describes the function of each key.
Figure 2
Keypad
Table 2 Key Functions
No. Name Description
1 Function Keys These keys are used in various ways, primarily to config-
ure 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 Backlight Key This key is used to turn the backlight on and off
4