IFM PF295 Series Manuale utente

Operating instructions

Electronic pressure sensor

PF295x UK

11426183 / 00 11 / 2021

Contents

1 Preliminary note��3

1�1 Symbols used ��3

2 Safety instructions ��3

3 Functions and features ��4

3�1 Applications ��4

4 Function��4

4�1 Processing of the measured signals��4

4�2 Pressure monitoring / switching function ��5

4�3 Pressure monitoring/ analogue function ��5

5 Installation��7

6 Electrical connection��9

7 Operating and display elements ��10

8 Menu�� 11

8�1 Menu structure�� 11

8�2 Menu explanation ��12

9 Parameter setting ��13

9�1 Parameter setting general ��13

9�2 Configuring the display (optional) ��14

9�3 Setting the output signal ��15

9�3�1 Setting the output function��15

9�3�2 Setting the switching limits ��15

9�3�3 Scaling the analogue value ��15

9�4 User settings (optional)��15

9�4�1 Zero-point calibration��15

9�4�2 Calibration reset ��15

9�4�3 Setting the delay time for the switching outputs ��16

9�4�4 Setting the output polarity��16

9�4�5 Setting the damping for the switching signal ��16

9�4�5 Setting the damping for the analogue signal ��16

9�5 Service functions ��16

9�5�1 Reading the min�/max� values for the system pressure��16

10 Operation��16

1 Preliminary note

1.1 Symbols used

►Instruction

> Reaction, result

[…] Designation of buttons, switches or indications

→Cross-reference

Important note

Non-compliance can result in malfunctions or interference�

2 Safety instructions

• The device described is a subcomponent for integration into a system�

- The manufacturer is responsible for the safety of the system�

- The system manufacturer undertakes to perform a risk assessment and to

create a documentation in accordance with legal and normative requirements

to be provided to the operator and user of the system� This documentation

must contain all necessary information and safety instructions for the operator,

the user and, if applicable, for any service personnel authorised by the

manufacturer of the system�

• Read this document before setting up the product and keep it during the entire

service life�

• The product must be suitable for the corresponding applications and

environmental conditions without any restrictions�

• Only use the product for its intended purpose (→ Functions and features).

• Only use the product for permissible media (→ Technical data).

• If the operating instructions or the technical data are not adhered to, personal

injury and/or damage to property may occur�

• The manufacturer assumes no liability or warranty for any consequences

caused by tampering with the product or incorrect use by the operator�

10�1 Read the set parameter values ��17

10�2 Fault indication ��17

10�3 Cleaning of the filter cover��17

• Installation, electrical connection, set-up, programming, configuration, operation

and maintenance of the product must be carried out by personnel qualified and

authorised for the respective activity�

• Protect units and cables against damage�

3 Functions and features

The pressure sensor detects the system pressure of machines and installations�

3.1 Applications

Type of pressure: relative pressure

Information on pressure rating and bursting pressure → data sheet.

Static and dynamic overpressures exceeding the indicated overload

pressure are to be avoided by taking appropriate measures�

The indicated bursting pressure must not be exceeded� Even if the

bursting pressure is exceeded only for a short time, the unit can be

destroyed� NOTE: Risk of injury!

4 Function

4.1 Processing of the measured signals

• The unit displays the current system pressure�

• It generates 2 output signals according to the parameter setting�

OUT1 • switching signal for pressure limit values

OUT2

• switching signal for pressure limit values

• analogue signal 4��20 mA

• analogue signal 0��10 V

4.2 Pressure monitoring / switching function

OUTx changes its switching state if it is above or below the set switching limits

(SPx, rPx)� The following switching functions can be selected:

• Hysteresis function / normally open: [OUx] = [Hno] (→ fig. 1).

• Hysteresis function / normally closed: [OUx] = [Hnc] (→ fig. 1).

First the set point (SPx) is set, then the reset point (rPx) at the requested

distance�

• Window function / normally open: [OUx] = [Fno] (→ fig. 2).

• Window function / normally closed: [OUx] = [Fnc] (→ fig. 2).

The width of the window can be set by means of the distance between SPx and

rPx� SPx = maximum value, rPx = minimum value�













































1 2

P = system pressure; HY = hystereris; FE = window

4.3 Pressure monitoring/ analogue function

The analogue signal can be set�

• [OU2] defines whether the set measuring range is provided as a 4��20 mA

signal ([OU2] = [I]) or a 0��10 V signal ([OU2] = [U])�

• By setting the parameter ASP you define the measured value at which the

output signal is 4 mA / 0 V�

• By setting the parameter AEP you define the measured value at which the

output signal is 20 mA / 10 V�

Minimum distance between [ASP] and [AEP] = 25 % of the final value of the

measuring range (turn down 1:4)�

Current output

Factory setting Measuring range scaled

























 



P = system pressure, MEW = final value of the measuring range

The output signal is between 4 and 20 mA� It is also indicated:

• System pressure above the measuring range: output signal > 20 mA �

• System pressure below the measuring range: output signal between 4 and

3�2 mA�

Voltage output

Factory setting Measuring range scaled



























P = system pressure, MEW = final value of the measuring range

The output signal is between 0 and 10 V� It is also indicated:

• System pressure above the measuring range: output signal > 10 V�

5 Installation

Ensure that no pressure is applied to the installation while mounting or

removing the sensor�

►Screw the sensor into a G¾

process fitting�

►Tighten the sensor with a spanner

until you can feel the end stop�

You can replace the Viton O-ring (B)

by the supplied EPDM O-ring�







A = rotatable housing

Adapters G ¾ ensure that the sensor can be connected to different process

connections� The adapters have to be ordered separately as accessories�

►Mount the adapter (D) to the

sensor�

►Fix sensor + adapter by means

of a coupling nut, a clamp flange

or similar (C) to the process

connection�

If it is not possible to slide the fixing

element (C) down over the top of the

sensor: slide it up over the bottom

of the sensor before the adapter is

mounted�

Mounting the adapter

►Slightly grease the threads and

sealing areas of the sensor and

adapter with lubricating paste (1)�

The paste must be suitable and

approved for the application and

compatible with the elastomers

used�

Recommendation: Klüber paste

UH1 84-201 with USDA-H1

approval for the food industry�

►Make sure that the O-ring (B) is

correctly positioned�

►Screw the sensor into the adapter

until it is hand-tight� Do not damage

the sealing chamfers�



►Clamp sensor and adapter into a

clamping device (E)� Tighten the

clamping device only slightly so

that the adapter does not warp� The

sealing chamfers (F) must not be

damaged�

►Tighten the sensor using a spanner

until you can feel the end stop�

Welding adapter

First weld the adapter, then mount the sensor� Follow the instructions included

with the adapter�

6 Electrical connection

The unit must be connected by a qualified electrician�

The national and international regulations for the installation of electrical

equipment must be adhered to�

Voltage supply to EN50178, SELV, PELV�

►Disconnect power and connect the unit as follows:

2 x p-switching 2 x n-switching









2: OUT2

4: OUT1 L

L+

2: OUT2

4: OUT1

1 x p-switching / 1 x analogue 1 x n-switching / 1 x analogue









L+

2: OUT2

4: OUT1 L

L+

2: OUT2

4: OUT1

Core colours of ifm sockets:

1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)

7 Operating and display elements

 









1: 7-segment display

- Display of the system pressure1),

- display of parameters and parameter values�

2: 2 x LED red

- Switching status; lights if output I / II has switched�

3: Set button

- Setting of the parameter values (scrolling by holding pressed; incremental by pressing

briefly)�

4: Mode/Enter button

- Selection of the parameters and acknowledgement of the parameter values�

1) 3-digit display in the minus range: -�XX = - 0,XX

Indice

Manuali Accessori popolari di altre marche

Hillco

Hillco 2810 Manuale utente

Siemens

Siemens QSA2700D Manuale dell'operatore

Contours

Contours ZY024 Manuale utente

Saivod

Saivod VS621 Manuale utente

Virtuox

Virtuox VirtuCLEAN 2.0 Manuale utente

SCE

SCE ENVIRO-THERM SCE-TE170B24VSS Manuale utente

Z-Wave

Z-Wave HSD-200Z Manuale utente

turck

turck FMX-IM-2UPLI63FX Manuale utente

Decagon Devices

Decagon Devices 10HS Manuale utente

UPPAbaby

UPPAbaby Cup Holder Manuale utente

Elko

Elko SmartSensor Leakage Wireless Manuale utente

Grizzly

Grizzly H8371 Manuale utente

Panasonic

Panasonic HG-T Series Manuale utente

IFM Electronic

IFM Electronic Efector 250 Series Guida di riferimento

DigiDesign

DigiDesign 888/24 I/O Manuale utente

PROZIS

PROZIS QUAY Manuale utente

patagonia

patagonia PSI Vest Manuale utente

SFC Energy

SFC Energy EFOY GO! Manuale utente