PAXD
The PAXD (PAX Universal DC Input Meter) offers many features and performance capabilities to suit a wide range of industrial applications. The meter employs advanced technology for stable, drift free readout, while incorporating features that provide flexibility now and in the future with plug-in option cards. The plug-in card options allow the opportunity to configure the meter for present applications, while providing easy upgrades for future needs. The PAXD Universal Meter has four voltage inputs (300 VDC max), five current inputs (2 A DC max), and three resistance inputs (10 Kohm max). Selectable excitation of 24 V, 2 V reference and 1.75 mA reference provides power to transmitters and potentiometers. A 16-point input scaling feature compensates for non-linear processes. The meter provides a Max and Min reading memory with programmable capture time. The capture time is used to prevent detection of false max and min readings which may occur during start-up or unusual process events. The signal totalizer (integrator) can be used to compute a time-input product. This can be used to provide a readout of totalized flow, calculate service intervals of motors and pumps, etc. The totalizer can also accumulate batch weighing operations. The meter has four setpoint outputs, implemented on Plug-in cards. The Plug-in cards provide dual FORM-C relays (5 A), quad FORM-A relays (3 A) or either quad sinking or quad sourcing open collector logic outputs. The setpoint alarms can be configured in modes to suit a variety of control and alarm requirements- High and low absolute, high and low deviation and band acting, Balanced or unbalanced hysteresis, On and off delay timers, Auto reset or latching modes, Reverse phase output and/or panel indicator and Selection of alternate list of setpoint values. Communication and Bus Capabilities are also available as option cards. These include RS232, RS485, Modbus, DeviceNet, and Profibus-DP. Readout values and setpoint alarm values can be controlled through the bus. Additionally, the meters have a feature that allows a remote computer to directly control the outputs of the meter. With an RS232 or RS485 card installed, it is possible to configure the meter using a Windows® based program. The configuration data can be saved to a file for later recall. A linear DC output signal is available as a Plug-in card. The card provides either 20 mA or 10 V signals. The output can be scaled independent of the input range. The features of the linear output cards are - Output tracks either input, totalizer, max or min readings and Programmable output update times. Once the meter has been initially configured, the parameter list may be locked out from further modification in its entirety or only the setpoint values can be made accessible. The meter has been specifically designed for harsh industrial environments. With NEMA 4X/IP65 sealed bezel and extensive testing of noise effects to CE requirements, the meter provides a tough yet reliable application solution.
