The PAX-S (PAX Strain Gage Input Meter) offers many features and performance capabilities to suit a wide range of industrial applications. The 4½ digit meter employs advanced technology for stable, drift free readout, while incorporating features that provide flexibility now and in the future with Plugin 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 Strain Gage meter has two bipolar mV input ranges: ±24 mV DC or ±240 mV DC. The internal bridge excitation is selectable for 5 VDC or 10 VDC. The excitation output is based on a reference, ensuring accurate and drift-free readouts. A 16 point scaling feature compensates for square-law devices and other non-linear process characteristics.
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 burst testing 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 (batch weight).
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 sinking or sourcing quad 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
- Selection of alternate list of setpoint values
Plug-in cards also facilitate bus communications. These include RS232, RS485 and DeviceNet (Consult factory for other bus formats). Readout values and setpoint alarm values can be controlled via bus commands. Additionally, the meter has features that allow a remote computer to directly control the outputs of the meter. This is useful during commissioning phases and diagnostic use. With a communication card installed, set-up software allows configuration from a PC. 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 card are: - Output tracks either input, totalizer, max or min readings - 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.
