RCA222 Series Differential Pressure Transducer product photo Primary L

RCA222 Series Differential Pressure Transducer

The RCA222 Differential Pressure (ΔP) Transducer is the latest monitoring device for use with Pall filter assemblies. It provides continuous, reliable, real time data of filter service condition to give users increased control of their fluid system maintenance procedures.

The RCA222 ΔP transducer senses the differential pressure across an in-service filter element and transmits the reading as a 4-20mA analogue signal, interpreted as a value of remaining filter life.

In addition it has two independent switched outputs set to 75% and 100% of filter service life to give an initial warning (75%) that the filter element will shortly need replacing, and a final warning (100%) that a replacement filter element is needed. This helps accommodate filter changes into planned maintenance schedules.

The ‘plug and play’ transducer is designed to fit all standard Pall threaded indicator ports, regardless of filter age, for applications rated up to 450 bar.

  • Provides a more automated, continuous method for monitoring filter service life
  • Sudden changes in filter condition can help detect potentially damaging operating conditions, enabling the operator to take corrective action before failure occurs
  • No manual on-site checking of filter status required
  • Transducer thermal lockout (< 20 ºC) ignores signals received before normal operating temperature is reached, ensuring readings are relevant
  • Available in a range of standard differential pressures to suit the Pall filter housing bypass setting the transducer is intended to be used with


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Description

The RCA222 Differential Pressure (ΔP) Transducer is the latest monitoring device for use with Pall filter assemblies. It provides continuous, reliable, real time data of filter service condition to give users increased control of their fluid system maintenance procedures.

The RCA222 ΔP transducer senses the differential pressure across an in-service filter element and transmits the reading as a 4-20mA analogue signal, interpreted as a value of remaining filter life.

In addition it has two independent switched outputs set to 75% and 100% of filter service life to give an initial warning (75%) that the filter element will shortly need replacing, and a final warning (100%) that a replacement filter element is needed. This helps accommodate filter changes into planned maintenance schedules.

The ‘plug and play’ transducer is designed to fit all standard Pall threaded indicator ports, regardless of filter age, for applications rated up to 450 bar.

  • Provides a more automated, continuous method for monitoring filter service life
  • Sudden changes in filter condition can help detect potentially damaging operating conditions, enabling the operator to take corrective action before failure occurs
  • No manual on-site checking of filter status required
  • Transducer thermal lockout (< 20 ºC) ignores signals received before normal operating temperature is reached, ensuring readings are relevant
  • Available in a range of standard differential pressures to suit the Pall filter housing bypass setting the transducer is intended to be used with

Specifications

Technical Information

Maximum operating pressure: 450 bar
Pressure fatigue rating: 0-400-0 bar >1 x 106
Proof pressure: 675 bar
Burst pressure (typical): 1100 bar
Number of cycles (Mechanical): 1 x105
Operating Temperature: -25°C(-13°F) to 85°C(185°F)
Minimum Ambient Temperature: -40°C (-40°F)
IP rating: IP65 with mating connector to M12-5 to IEC 61076-2-101 socket plug assembly.
Connector: PA6, 6-M12-5 PIN to IEC 61076-2-101.
4-20 mA & Modbus: PA6, 6-M12 5 Pin
LED Option: 6-M12 4 Pin, both to IEC 61076-2-101

Materials of construction

Body, piston, spring retainer: Brass
Spring: Stainless Steel
Seals: Fluorocarbon
Tightening torque setting: 50-60 Nm.

Electrical switch ratings

24 VDC PNP Maximum load 0.4A normally open, analogue output 4-20mA.

Automatic switch reset when differential pressure is reduced.

Thermal lockout T° = 20°C (68°F) Note if T < T° Digital output 1 remains normally open, digital output 2 remains normally open and analogue output remains at 4mA.

Analogue output remains at 4mA until a minimum of 25% of differential pressure range has been exceeded (dead band).

Transducer Connection
 
Pin 1: 24 VCC ± 10 %
Pin 2: Analogue Output 4-20 mA
Pin 3: Digital Output 1 75 % (PNP)
Pin 4: Digital Output 2 100 % (PNP)
Pin 5: 0 VDC, Ground
 
Connection Modbus
 
Pin 1: 24 VCC ± 10 %
Pin 2: N/A
Pin 3: Modbus RTU B
Pin 4: Modbus RTU A
Pin 5: 0 VDC, Ground
 
Connection LED’s
 
Pin 1: 24 VCC ± 10 %
Pin 2: Output 2 (100 %)
Pin 3: 0 VDC, Ground
Pin 4: Output 1 (75 %)
Note: 4 Pin connector only
 


Type

Diagnostic and Monitoring Equipment

Use

Monitoring, Testing

Ordering Information

Indicator Part Numbers:

4-20 mA Output
RCA222ZK2011
RCA222ZK4024
RCA222ZK4034
RCA222ZK8069
Modbus Output
RCA222ZK20M
RCA222ZK40M
RCA222ZK80M
LED Output
RCA222ZK20LED11
RCA222ZK40LED24
RCA222ZK40LED34
RCA222ZK80LED69


 
Code Differential Pressure Range
K20 0.3 - 2.0 bard (5-29 psid)
K40 0.5 - 4.0 bard (8-58 psid)
K80 1.0 - 8.0 bard (15-116 psid)
 

 
Code Switch Output Setting
11 1.1 bar (16 psid), with K20 only
24 2.4 bar (35 psid), with K40 only
34 3.4 bar (50 psid), with K40 only
69 6.9 bar (100 psid), with K80 only
 

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