DUAL RATE METER MONITORS TWO SIGNAL INPUTS AT ONCE AND PERFORMS APPLICATION-SPECIFIC CALCULATIONS

Description

Red Lion Controls, Inc. introduces the PAXDR Dual Rate Meter, providing real-time viewing of dual input rates, paired with sophisticated math functions to measure and display the sum, difference, ratio, draw or percentage of total between the two rates. PAXDR is a 5-digit dual rate indicator and 6-digit dual totalizer that monitors mission-critical factors such as inflow and outflow, unwind and rewind wire tension, feed and tension roll speed, and other pivotal production rates.
 
Within its industry-standard 1/8 DIN housing, PAXDR simplifies dual rate applications as a single, easy-to-use device—without the need for any complex programming that would otherwise be required to perform application-specific calculations. Six values are viewable on the meter’s .56" LED display: one each for rates A and B, totalizers for A and B, and the rate and totalizer for calculation C. These readings improve production quality and reduce rejects by ensuring a parameter such as feed rate, line speed, flow rate or tension is properly maintained throughout processing.
 
Users can simply select the desired scale for each of the two signal inputs using PAXDR’s programmable function keys, with independent scaling provided for A and B totalizers. This capability makes PAXDR ideal for applications such as flow measurement, where both flow rate and volume must be monitored and scaled to a common unit of measure. Plus, 10-point scaling for both input rates is provided for challenging non-linear processes.
 
“Monitoring and comparing two rates at once is often critical in flow, web or extruding applications,” said Jeff Thornton, Red Lion product manager. “If the many points of a continuous process are not kept harmonized, the ramifications can be disastrous.” Thornton adds, “PAXDR eliminates these risks by displaying both individual and total rates for each of the two designated inputs, as well as delivering a rate and totalizer calculation based upon the user’s application parameters—all accessible at the touch of a button.”
 
To further expand the PAXDR’s capabilities, users may select from several field-installable plug-in option cards, providing features such as:
• Four setpoint outputs, assigned to any rate or totalizer value and configured to suit varying control and alarm requirements
• Retransmitted analog output, scaled independently of the input range
• Communication and bus capabilities, including RS232, RS485, Modbus, DeviceNet™ and Profibus-DP
PAXDR is available with a standard green or sunlight-readable red LED display, with variable intensity for easy readability in conditions ranging from low light to bright sun. Its NEMA 4X/IP65 sealed bezel ensures PAXDR withstands harsh plant floor conditions to deliver dependable, long-lasting operation.

Specs

• DISPLAY: 6 digit, 0.56" (14.2 mm) red sunlight readable or standard green • LED, intensity adjustable. • POWER: • AC Versions: • AC Power: 85 to 250 VAC, 50/60 Hz, 18 VA • Isolation: 2300 Vrms for 1 min. to all inputs and outputs. (300 V working) • DC Versions: • DC Power: 11 to 36 VDC, 14 W • (derate operating temperature to 40 °C if operating <15 VDC and three • plug-in option cards are installed) • AC Power: 24 VAC, ± 10%, 50/60 Hz, 15 VA • Isolation: 500 Vrms for 1 min. to all inputs and outputs (50 V working). • SENSOR POWER: 12 VDC, ±10%, 100 mA max. Short circuit protected • KEYPAD: 3 programmable function keys, 5 keys total • RATE DISPLAYS: • Maximum Display: 5-digits • Display Range: 0 to 99999 (Rate A or B); -9999 to 99999 (Rate C) • Over/Under Range Display: “” • Annunciators (displayed in Digit 6):  - Rate A,  - Rate B,  - Rate C • Display Update Time: Adjustable 0.1 to 99.9 seconds • Maximum Frequency: See Maximum Signal Frequencies Table • Minimum Frequency: 0.01 Hz • Accuracy: ±0.01% of input signal frequency • TOTALIZER DISPLAYS: • Maximum Display: 8-digits • Display Range: ±99999999; For values greater than 6 digits, display • alternates between high order ( prefix) and low order digits. • Over/Under Range Display: “” • Annunciators: A, B and C along left side of display for selected Totalizer. • Maximum Frequency: See Maximum Signal Frequencies Table • USER INPUTS: Three programmable user inputs • Max. Continuous Input: 30 VDC • Isolation To Sensor Input Commons: Not isolated • Logic State: Jumper selectable for sink/source logic • INPUT STATE SINKING INPUTS • 5.1 K pull-up to +12 V • SOURCING INPUTS • 5.1 K pull-down • ActiveVIN < 0.9 VDCVIN > 3.6 VDC • InactiveVIN > 3.6 VDCVIN < 0.9 VDC • Response Time: 6 msec. typical; function dependent. Certain resets, stores • and inhibits respond within 25 μsec if an edge occurs with the associated • totalizer or within 6 msec if no count edge occurs with the associated • totalizer. • msec max. After that period, another edge/level may be recognized. • MEMORY: Nonvolatile E2PROM retains all programmable parameters and • display values when power is removed. • CERTIFICATIONS AND COMPLIANCES: • SAFETY • IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment • for measurement, control, and laboratory use, Part 1. • IP65 Enclosure rating (Face only), IEC 529 • IP20 Enclosure rating (Rear of unit), IEC 529
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