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Features
• Stability based Ready/Not Ready indication
• Built-in fluid head corrections
• User defined pressure units
• Intelligent AutoZero™ function
• Remote [ENTER] switch
• Large character, easy to read display
• 12 V dc power and battery pack option
• RS-232 and IEEE-488 communications
• Free LabVIEW® drivers
RPM4 is much more than a traditional pressure indicator
State of the art performance from very low pressure to 280 MPa (40 000 psi)… advanced on-board features…compact and rugged…full local and remote communications…RPM4 is the perfect solution in a wide variety of high end pressure calibration, testing and measurement applications.
Infinite Ranging™ and AutoRange™
Infinite Ranging gives RPM4 unprecedented versatility in adapting to the specific range of operation. With the easy to use AutoRange function, a few simple key strokes or a single remote command string at the start of a test adapt every feature of the pressure monitor to optimize it for the range to be covered. Just enter the maximum pressure and the measurement mode. AutoRange then:
• Selects and activates the most appropriate Q-RPT to cover the specified range and measurement mode.
• Sets the pressure unit of measure.
• Activates absolute, gauge or compound gauge measurement.
• Adjusts display resolution to the appropriate level for the range.
• Adjusts overpressure alarms to the actual range of operation.
• Reduces measurement uncertainty proportionally to the selected range (premium class Q-RPTs only).
Note: The use of RPM4’s Infinite Ranging and AutoRange feature is recommended to optimize operation for a specific range but is not required to obtain “% of reading" measurement specifications.
SDS™ Q-RPT Self Defense System™
All Q-RPT modules up to 7 MPa (1 000 psi) include the Fluke Calibration unique Self Defense System (SDS). SDS valves automatically isolate and vent the module’s Q-RPT when it is not in use or an overpressure is about to occur. With SDS, any Q-RPT module can be left connected to pressure up to 10 MPa (1 500 psi) without needing to isolate or disconnect it.
Advanced on-board functions
RPM4 provides a variety of advanced onboard pressure data functions including:
• Special data such as pressure average over time, rate of change, hi/lo, freeze, deviation from set point
• Differential mode directly measures the difference between two Q-RPTs including taring at the line pressure
• Parallel measurement uses two Q-RPTs redundantly as one
• Leak check measures average pressure rate of change over a user set time period
• AutoTest automates calibration routines with tolerance testing and data logging
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