Martel Electronics BetaGauge 330 - Manual (Page 14)

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checked against the configurations of the other currently active displays, if the
configurations are in conflict the recalled display’s configuration is modified to avoid the
conflict. If all three displays are deactivated the LOWER display will come on
automatically
2.4.6 Setting the RTD probe type
Use the PROBE TYPE option of the RTD Probe Type main menu to access the RTD
Probe selection menu.
There are four probe types to select from P100-385, P100-392, P100-JIS and CUSTOM.
Use the SELECT option to select the desired probe type and the DONE option to store
the change and return home.
Note: The default probe type is PT100-385.
2.4.7 Damping
Damping can be turned ON or OFF using the Damping menu selection. When damping
is ON, the calibrator displays an running average reading of ten measurements. The
calibrator makes approximately 3 readings per second.
2.4.8 Pump Limits
To prevent overpressure of sensitive devices the maximum pressure (pump limit) can be
set. When in this mode use the arrow keys to set the maximum pressure.
2.4.9 HART™ Resistor
An internal 250 ohm HART Resistor can be enabled when the BetaGauge 330 is operated
in the “mA Measure-24V” mode. This allows a HART Communicator to be connected
across the mA terminals and eliminates the need for adding an external resistor.
Note: When the HART resistor is on the maximum load driving capacity is 750 ohms.
3. Initial Setup and Basic Pressure Generation
1. The BetaGauge 330 is supplied with a special low volume calibration hose kit to
facilitate faster pumping to pressure and quick pressure stabilization. the kit also
comes with the required “quick-fit” hose connectors and a BSP adapter for non-NPT
applications. It is highly recommended that this type of hose is used to achieve the
best performance of the product. Once the fittings are installed and the calibrator is
connected to the unit under test (UUT) the calibrator is ready for use. Figure 5 shows a
typical setup.