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The PAX2D Digital Panel Meter offers many features and performance capabilities that are not available on standard panel meters. The basic meter is a dual counter and dual rate meter all in the same package. A third counter and third rate display allows the user to do simple math functions. The optional plug-in output cards allow the opportunity to configure the meter for present applications, while providing easy upgrades for future needs.
Highlighting the PAX2D is a dual line, display with a large 0.71" tri-color 6 digit top display line and a 0.35", 9 digit green bottom display line. The meter also offers programmable units display providing the ability to tag the display with units of measure. Display color change capability provides machine operators a visual indication of changing conditions, even when the operator is not close enough to read the actual display value. In addition, a universal power supply provides the ultimate in flexibility for both AC and DC power.
The meter accepts digital inputs from a variety of sources including switch contacts, outputs from CMOS or TTL circuits, magnetic pickups and all standard RLC sensors. The meter can process directional, uni-directional or Quadrature signals simultaneously. The meter accepts input signals up to 50 KHz maximum depending on the count mode and function configurations programmed. Each input signal can be independently scaled to various process values. The meter provides a MAX and MIN rate reading memory with programmable capture time. The capture time is used to prevent detection of false max or min readings which may occur during start-up or unusual process events.
The meter has up to four setpoint outputs, implemented on plug-in option cards. The plug-in cards provide dual FORM-C relays, quad FORM-A, or either quad sinking or quad sourcing open collector logic outputs. The setpoint alarms can be configured to suit a variety of control and alarm requirements.
The PAX2 can be programmed to utilize Modbus protocol. With Modbus, the user has access to most configuration parameters. Readout values and setpoint alarm values can be controlled through the bus. Additionally, the meter has a feature that allows a remote computer to directly control the outputs of the meter. Communication and bus capabilities are also available as option cards. These include RS232, RS485, DeviceNet, and Profibus-DP.
The PAX2 includes a built-in USB programming port. With a Windows® based program, made available by Red Lion Controls, configuration data can be downloaded to the PAX2 without the need of any additional option cards. A linear DC output signal is available as an optional plug-in card. The card provides either 20 mA or 10 V signals. The output can be scaled independent of the input range and can track any of the counter, rate, max or min displays, or any setpoint value. After the meter has been initially configured, the parameter programming may be locked out from further modification in its entirety, or allowing selected values accessible for quick entry.
The meter has been specifically designed for harsh industrial environments. With NEMA 4X/IP65 sealed bezel, extensive testing of noise effects with regard to CE requirements, the meter provides a tough reliable application solution.