PAXP

What type of industrial applications is this process input panel meter suited to?

This process input panel meter is suited to industrial measurement and display applications where analogue process signals need to be converted into a clear local readout. Typical uses include monitoring pressure, flow, level, temperature transmitter outputs, and other process variables using 20 mA or 10 VDC signal ranges.

What input signal ranges can the unit accept?

The Red Lion PAXP is designed for process inputs and supports a 20 mA range, covering -2 to 26 mA, and a 10 VDC range, covering -1 to 13 VDC. This makes it suitable for common industrial transmitter signals such as 4-20 mA and 0-10 V.

Does the meter provide power for external transmitters?

Yes. The process input version includes regulated 24 VDC transmitter power rated up to 50 mA, allowing it to power compatible 2-wire or 3-wire process transmitters when wired correctly.

What kind of display does the meter use?

The unit uses a 5-digit LED display with 0.56 inch characters. Depending on the specific configuration, the PAX range can be supplied with a red sunlight-readable display or a green display, with adjustable display intensity.

Can the meter be scaled to show engineering units?

Yes. The meter can be programmed so that the incoming process signal corresponds to a chosen display value. This allows a 4-20 mA or 0-10 V process signal to be displayed in engineering units such as bar, litres, metres, percentage, RPM, or other application-specific values.

Does the unit support non-linear signal scaling?

Yes. The PAX analogue meter platform supports up to 16 scaling point pairs, which can be used for non-linear process applications where a simple two-point linear scale is not sufficient.

Can the meter store maximum and minimum readings?

Yes. The meter includes MAX and MIN reading memory. Capture delay settings can be programmed to help prevent brief spikes or process disturbances from being stored as false maximum or minimum values.

Does the unit include a totalizer function?

Yes. The meter includes a 9-digit totalizer, also described as an integrator. It can accumulate a process value over a selected time base, or it can be configured for batch-style accumulation using a user input or function key.

What options are available for alarm outputs?

Alarm output capability can be added with a compatible setpoint option card. Depending on the card fitted, the meter can provide relay, open collector, triac, or SSR drive style outputs, with up to four setpoint alarm outputs available.

Can the analogue process value be retransmitted to another device?

Yes. With the appropriate analogue output option card fitted, the meter can provide a retransmitted output such as 0-20 mA, 4-20 mA, or 0-10 VDC. The output can be scaled independently and assigned to track the input, totalizer, maximum, or minimum reading.

What communications options can be used with this meter?

Compatible communication option cards are available for serial and fieldbus integration, including RS232, RS485, Modbus, DeviceNet, and Profibus-DP versions. Only one communications card can be installed at a time.

How many option cards can be installed?

The PAX meter platform can accept up to three option cards, with one card from each functional group: setpoint alarms, communications, and analogue output. This allows the meter to be expanded for control, signalling, or integration functions.

What power supply versions are available for the unit?

The PAX analogue panel meter range is available in AC and low-voltage power versions. AC versions operate from 85 to 250 VAC, while DC versions operate from 11 to 36 VDC and can also accept 24 VAC.

What panel cut-out size is required?

The meter is a 1/8 DIN panel instrument. The panel cut-out is approximately 92 mm by 45 mm, making it suitable for standard industrial panel mounting arrangements.

What environmental rating does the front of the meter have?

When correctly installed into a suitable panel, the front bezel is rated to NEMA 4X and IP65. The rear of the unit is rated IP20.

What operating temperature range is specified?

The general operating temperature range is 0 to 50°C. If all three option card positions are populated, the specified operating range is reduced to 0 to 45°C.

What wiring terminals are used on the unit?

Electrical connections are made using screw-clamp terminals on the rear of the meter. The terminals accept copper conductors within the specified gauge range, and the wiring position should be matched to the terminal numbering on the rear case.

How are user inputs used on the meter?

The meter includes three programmable user inputs. These can be assigned to functions such as display hold, totalizer reset, batch accumulation, maximum or minimum reset, input tare, display selection, print request, or programme lock-out.

Can the front panel keys be programmed?

Yes. The front panel includes programmable function keys that can be assigned to selected meter functions. Some keys can also have secondary functions that activate after being held for a defined period.

What does an over-range display message indicate?

An over-range display message usually indicates that the measured signal is outside the configured input range or that the input wiring, scaling, or signal level should be checked. The meter can show different messages for signal high, signal low, or display value overflow conditions.