Orion KA231020 High Range Pressure Difference Switches Instruction Manual

Orion KA231020 High Range Pressure Difference Switches

Specifications

• Product Name : FC/FE High Range Pressure Difference Switches FE
• Enclosure: IP66 Flameproof
• Working Pressure : Up to 12.0 bar (174.05 psi)
• Pressure Port: 1/4 BSP(F) Low and High Pressure Ports
• Materials: SS316, PTFE, CSK screw (SS)

Product Usage Instructions

Installation

1. Refer to the installation drawing for component identification.
2. Ensure all wetted parts are correctly assembled as per the manual.
3. Select the appropriate cable entry size based on your requirements.
4. Securely mount the pressure housing in the desired location.

Range Selection
Select the range code based on the pressure requirements using the Range Selection Table provided.

Ordering Information
To order, follow the guidelines provided in the “How to Order Flameproof High Range Pressure Difference Switches” section of the manual.

FAQ

• What is the maximum working pressure of the FC/FE High Range Pressure Difference Switches?
  The maximum working pressure is 12.0 bar (174.05 psi) for all range codes.

• How can I achieve actuation and deactuation at the same point?
  If critical, use a separate DPDT relay with a separate power supply for its coil to achieve this.

PRESSURE CAPSULE DETAILS

1. Pressure Housing
2. HP Plunger (SS316)
3. Disc
4. Diaphragm
5. LP Plunger (SS316) Junction Plate
6. Sealing
7. ‘O’ Ring (PTFE)
8. Sealing diaphragms (PTFE)
9. ‘O’ ring (PTFE)
10. CSK screw (SS)

INSTALLATION DRAWING

RANGE SELECTION TABLE

Range Code| Range bar (psi)| *Differential bar (psi)| Maximum Working Pressure bar (psi)
---|---|---|---
Approximate Maximum for “A1” microswitch**
H01| 0.1 to 1.0

(1.45 to 14.50)

| 0.12

(1.74)

| 12.0

(174.05)

H02| 0.1 to 1.5

(1.45 to 21.76)

| 0.20

(2.90)

| 12.0

(174.05)

H03| 0.2 to 2.6

(2.90 to 37.71)

| 0.20

(2.90)

| 12.0

(174.05)

H04| 0.2 to 3.6

(2.90 to 52.21)

| 0.30

(4.35)

| 12.0

(174.05)

Note:

1. The minimum differential increases with the setpoint. The differential values mentioned in the above table are approximate maximum for FSR. The differential value will vary according to the pressure range selected and microswitch type. For actual values of differential please contact sales office.
2. When using 2SPDT switching arrangement, both microswitches may not actuate and/or deactuate at the same point.
   A small stage gap, normally upto +/- 5% FSR (depending on range code) may be observed. The On-Off differential (hysterisis) typically tends to be atleast double of those published for 1SPDT pressure switches.
   If actuation and/or deactuation at same point is critical part of operation, then it can be achieved by using a separate  DPDT relay. This relay will need a separate power supply for it’s coil.

HOW TO ORDER FLAMEPROOF HIGH RANGE PRESSURE DIFFERENCE SWITCHES

Group 1               Group 2                            Group 3| Group 4| Group 5| Group 6| Group 7| Group 8
---|---|---|---|---|---
Non standard allocation| Model| Cable Entry Size| Switch Type| Range Code (values in bar)| Microswitch Type| Pressure Port Material / Size| Diaphragm
A prefix “N” is used in the model code in case of any non standard options / accessories that are provided with the switches. Will be given by manufacturer, only after agreement of supply details with customer.

The prefix is subject to change as per specific requirement.

| FC = IP66

Flameproof pressure switch, ATEx, IECEx &

PESO approved

FE =

IP66 Flameproof pressure switch, PESO approved

| 1 = Al. head

½” NPT threads

2 = Al. head

¾” NPT threads

3 = Al. head

M20 x 1.5 threads

*4 = Grey CI head

½” NPT threads

*5 = Grey CI head

¾” NPT threads

*6 = Grey CI head M20 x 1.5 threads

7 = SS head

½” NPT threads

8 = SS head

¾” NPT threads

9 = SS head M20 x 1.5 threads

*Not available in FE models

| D1 =

pressure difference switch, fixed differential without scale

D2 =

pressure difference switch, fixed differential with scale in bar

D3 =

pressure difference switch, fixed differential with scale in psi

For adjustable differential please select microswitches A6 or C6 in group 6

| H01 = (0.1 – 1.0)

H02 = (0.1 – 1.5)

H03 = (0.2 – 2.6)

H04 = (0.2 – 3.6)

| A1 = General purpose microswitch rated at 15 A; 250 VAC

*A6 = elements with adjustable deadband

*A7 = 2SPDT

switching elements

A8 = General purpose microswitch rated at 5 A, 250 VAC; 5 A, 28 VDC

*B7 = 2SPDT

Switching Elements

C6 = 1SPDT

Adjustable Differential

Please refer to page nos. 120 & 121 for options and specifications of microswitches

• Please contact sales office for additional information

| S1 =

SS316 / ¼” BSP(F)

S2 =

SS316 / ¼” NPT(F)

More options available, please contact sales office

| 0 =

Neoprene

1 = PTFE

Approx. switch| weight in Kgs
| Enclosure| | FC| FE| | ****

For additional wett please contact

| ****

ed part materials Sales Office

Aluminium| | 2.030| 1.530
Grey CI| | 4.430| 3.930
SS| | 4.560| 4.060
| | |

Please specify full model number to avoid ambiguity. If only the first two groups are specified while ordering, uncalibrated switches with standard wetted parts and enclosures will be supplied.

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