IFM PL205 Series User manual

Operating instructions

Electronic pressure sensor

PL205x

706069 / 01 06 / 2019

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.

Contents

1 Preliminary note...................................................................................................2

1.1 Symbols used ................................................................................................2

2 Safety instructions ...............................................................................................3

3 Functions and features ........................................................................................4

3.1 Applications ...................................................................................................4

4 Function...............................................................................................................5

4.1 Processing of the measured signals..............................................................5

5 Installation............................................................................................................6

6 Electrical connection............................................................................................8

7 Operation.............................................................................................................8

7.1 Cleaning of the filter cover.............................................................................8

8 Parameter setting ................................................................................................9

8.1 Adjustable parameters...................................................................................9

8.2 Setting ranges .............................................................................................10

2 Safety instructions

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

- The manufacturer of the system 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 opera-

tor, 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 environ-

mental 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.

• Installation, electrical connection, set-up, operation and maintenance of the unit

must be carried out by qualified personnel authorised by the machine operator.

• Protect units and cables against damage.

For the scope of validity cULus: The device shall be supplied from an isolating

transformer having a secondary Listed fuse rated as noted in the following table.

Overcurrent protection

Control-circuit wire size Maximum protective device rating

Ampere

AWG (mm2)

26 (0.13) 1

24 (0.20) 2

22 (0.32) 3

20 (0.52) 5

18 (0.82) 7

16 (1.3) 10

The Sensor shall be connected only by using any R/C (CYJV2) cord, having suit-

able ratings.

3 Functions and features

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

3.1 Applications

Type of pressure: relative pressure

Order no. Measuring range Permissible

overload pressure Bursting pressure

bar PSI bar PSI bar PSI

PL2053 -1...25 -15...363 100 1 450 350 5 070

PL2054 -0,5...10 -7...145 50 725 150 2 175

PL2056 -0,13...2,5 -1,8...36,3 20 290 50 725

mbar PSI bar PSI bar PSI

PL2057 -50...1 000 -0,7...14,5 10 145 30 450

mbar inH2O bar inH2O bar inH2O

PL2058 -12,5...250 -5,0...100,4 6 2400 30 12 000

MPa = bar ÷ 10 / kPa = bar × 100

Static and dynamic overpressures exceeding the indicated overload pres-

sure are to be avoided by taking appropriate measures.

The indicated bursting pressure must not be exceeded. Even if the burst-

ing 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 converts the system pressure into an analogue output signal (4...20 mA).

The measuring range can be scaled to up to 25% of the finalvalue of the measur-

ing range.

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

output signal is 4 mA.

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

output signal is 20 mA.

Factory setting Measuring range scaled

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

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 



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.

The unit is ready for operation when delivered. Factory preset: not scaled (ASP =

0 bar; AEP = 100% of the final value of the measuring range).

5 Installation

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

removing the sensor.

Aseptoflex adapters ensure that the

sensor can be connected to different

process connections.

(The adapters have to be ordered

separately as accessories.)

Mounting operation:

► Mount the adapter (B) to the sen-

sor.

►Fix sensor + adapter by means of

a coupling nut, a clamp flange or

similar (A) to the process connec-

tion.

If it is not possible to slide the fixing

element (A) down over the top of the

sensor: slide it up over the bottom

of the sensor before the adapter is

mounted.





Mounting the Aseptoflex 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 ap-

proval for the food industry.

► Make sure that the O-ring (C) 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 (D). Tighten the

clamping device only slightly so

that the adapter does not warp. The

sealing chamfers (E) must not be

damaged.

►Tighten the sensor using a spanner

until you can feel the end stop (cor-

responding to a maximum tighten-

ing torque of 25 Nm / 18 ftlb). Note:

Do not overtighten. This can have

an adverse effect on the sealing.





NOTE: A guarantee for a long-term stable and maintenance-free fitting with no bug

traps in the hygienic sealing of the metal seal (Aseptoflex connection) is only valid

for once-only mounting.

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.

►Connect the unit as follows:

2 wire connection 3 wire connection















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



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 



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











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



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Core colours of ifm sockets:

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

7 Operation

After power on of the supply voltage the unit is in the Run mode (= normal opera-

tion). It carries out its measurement and evaluation functions and provides an

analogue signal proportional to the system pressure.

7.1 Cleaning of the filter cover

If viscous and residues producing

media clog the filter cover of the sen-

sor (and thus reduce the measuring

accuracy slightly), you can clean it.

► Unscrew the filter cover (B) (use a

pair of pliers with plastic-covered

jaws for this).

►Clean the cover thoroughly.



The vent (A) should only be cleaned by skilled personnel and with utmost care.

Possible medium residues must not be compressed and pressed into the vent.

This could clog the filter system and reduce the measuring accuracy of the

sensor.

►Screw the filter cover again tightly.

The sensor is sufficiently protected against harsh ambient conditions (protection

IP 67). The protection rating can be increased by a special accessory (order no.

E30043).

8 Parameter setting

Parameters can be set before installation and set-up of the unit or during opera-

tion.

If you change parameters during operation, the operating principle of the

plant will be influenced.

►Ensure that there will be no malfunctions in your plant.

• Parameter setting with PP2001 →operating instructions enclosed to PP2001.

8.1 Adjustable parameters

ASP Analogue start point

Measured value at which 4 mA is provided.

AEP Analogue end point

Measured value at which 20 mA is provided.

Minimum distance between ASP and AEP = 25% of the span.

Min-Max memory for system pressure

• HI: displays the highest measured pressure.

• LO: displays the lowest measured pressure.

COF Calibration offset

The internal measured value (operating value of the sensor) is offset against the

real measured value.

• Setting range: -5 ... +5% of the value of the span (with scaling as factory setting

(ASP = 0 bar and AEP = final value of measuring range) in steps of 0.1% of the

value of the span.

CAr Calibration reset

Resets the calibration set by COF.

dAA Damping for the analogue output

Pressure peaks of short duration or high frequency can be filtered out.

dAA-value = response time between pressure change and change of the switch-

ing status in milliseconds (ms).

• Setting range: 0 (= dAA is not active) / 0.1 s / 0.5 s / 2 s.

Uni Display unit

The measured values and values for ASP / AEP can be indicated in the following

units:

bar, mbar, PSI, MPa, kPa, inH2O (only PL2058), mmWS (only PL2058).

diS Setting of the display

d1 / d2 / d3 = update of the measured value every 50ms / 200ms / 600ms. The

update interval only refers to the display.

ph = display of the measured peak value remains for a short time (peak hold).

8.2 Setting ranges

ASP AEP ΔP

min max min max

PL2053

bar -1,0 18,8 5,3 25,0 0,1

PSI -15 272 76 363 1

MPa -0,10 1,88 0,53 2,50 0,01

PL2054

bar -0,50 7,49 2,00 9,99 0,01

PSI -7 109 29 145 1

kPa -50 749 200 999 1

PL2056

bar -0,13 1,88 0,50 2,50 0,01

PSI -1,8 27,2 7,3 36,3 0,1

kPa -13 188 50 250 1

PL2057

mbar -50 749 200 999 1

PSI -0,7 10,9 2,9 14,5 0,1

kPa -5,0 74,9 20,0 99,9 0,1

PL2058

mbar -12,5 100,0 50,0 250,0 0,5

kPa -1,25 10,00 5,00 25,00 0,05

inH2O

-5,0 40,2 20,2 100,4 0,2

mmWS -125 1020 515 2550 5

ΔP = increments

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