IFM Electronic PI209 Series Bedienungsanleitung

Operating instructions

Electronic pressure sensor

PI209x

11426177 / 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

4�4 Diagnostic function ��7

5 Installation��8

6 Electrical connection��10

7 Operating and display elements �� 11

8 Menu��12

8�1 Menu structure��12

8�2 Menu explanation ��13

9 Parameter setting ��14

9�1 Parameter setting general ��14

9�2 Configuring the display (optional) ��16

9�3 Setting the output signal ��16

9�3�1 Setting the output function��16

9�3�2 Setting the switching limits ��17

9�3�3 Scaling the analogue value ��17

9�4 User settings (optional)��18

9�4�1 Zero-point calibration��18

9�4�2 Setting the delay time for OUT1 ��18

9�4�3 Setting the output polarity for OUT1 ��18

9�4�4 Setting the damping for the switching signal ��18

9�4�5 Setting the damping for the analogue signal ��18

9�5 Service functions ��19

9�5�1 Reading the min�/max� values for the system pressure��19

9�5�2 Reset all parameters to the factory setting ��19

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�

10 Operation��19

10�1 Read the set parameter values ��19

10�2 Fault indication ��19

10�3 Cleaning of the filter cover��20

11 Factory setting ��21

• 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, 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

2 selection options

• switching signal for pressure limit values�

• diagnostic signal (in case of a fault output 1 becomes inactive)�

OUT2

4 selection options

• analogue signal 4��20 mA

• analogue signal 20��4 mA

• analogue signal 0��10 V

• analogue signal 10��0 V

4.2 Pressure monitoring / switching function

OUT1 changes its switching state if it is above or below the set switching limits

(SP1, rP1)� The following switching functions can be selected:

• Hysteresis function / normally open: [OU1] = [Hno] (→ fig. 1).

• Hysteresis function / normally closed: [OU1] = [Hnc] (→ fig. 1).

First the set point (SP1) is set, then the reset point (rP1) at the requested

distance�

• Window function / normally open: [OU1] = [Fno] (→ fig. 2).

• Window function / normally closed: [OU1] = [Fnc] (→ fig. 2).

The width of the window can be set by means of the distance between SP1

and rP1� SP1 = maximum value, rP1 = minimum value�

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1 2

P = system pressure; HY = hysteresis; 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]), a 20��4 mA signal ([OU2] = [InEG]), a 0��10 V signal ([OU2]

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

Scaling can also be set by means of the teaching process or by entering a value

for the ASP and AEP parameters�

• By teaching the analogue start point (tASP) or setting the parameter ASP you

define the measured value at which the output signal is 4 mA / 0 V (20 mA /

10 V at [InEG] / [UnEG])�

• By teaching the analogue end point (tAEP) or setting the parameter AEP you

define the measured value at which the output signal is 20 mA / 10 V (4 mA /

0 V at [InEG] / [UnEG])�

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

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

the measuring range

: [OU2] = [I];

: [OU2] = [InEG]

The output signal is between 4 and 20 mA ([OU2] = [I]) or between 20 and 4 mA

([OU2] = [InEG])� It is also indicated:

• System pressure above the measuring range:

- output signal > 20 mA if [OU2] = [I]�

- output signal between 4 and 3�8 mA if [OU2] = [InEG]�

• System pressure below the measuring range:

- output signal between 4 and 3,8 mA if [OU2] = [I]�

- output signal > 20 mA if [OU2] = [InEG]�

Voltage output

Factory setting Measuring range scaled

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

the measuring range

: [OU2] = [U];

: [OU2] = [UnEG]

The output signal is between 0 and 10 V ([OU2] = [U]) or between 10 and 0 V

([OU2] = [UnEG]) in the set measuring range�

It is also indicated:

• System pressure above the measuring range:

- output signal > 10 V if [OU2] = [U]�

• System pressure below the measuring range:

- output signal > 10 V if [OU2] = [UnEG]�

4.4 Diagnostic function

Output 1 is used as a diagnostic output according to DESINA specification if

OU1 = dESI�

• If there is no fault, the output is switched and carries UB+ (if P-n = PnP) or

UB- (if P-n = nPn)�

• In case of malfunctions the output becomes inactive� The following

malfunctions are detected:

- undervoltage (starting with 18V); overvoltage (starting with 33V);

- temperature at the process connection too high (> 150°C) / too low (< -30°C);

- intrinsic temperature of the unit too high (> 100°C) / too low (< -30°C);

- RAM fault�

5 Installation

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

removing the sensor� Please note: Display „0%“ does not mean that the

system is free of pressure!

Horizontal mounting recommended for high medium temperatures�

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 (C) to the sensor�

►Fix sensor + adapter by means of a

coupling nut, a clamp flange or similar

(B) to the process connection�

If it is not possible to slide the fixing

element (B) down over the top of the

sensor: slide it up over the bottom of the

sensor before the adapter is mounted�

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A = rotatable housing

Mounting the Aseptoflex adapter

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►Slightly grease the threads and sealing areas of the sensor and adapter with

the lubricating paste (D)�

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 (E) 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 (F)� Tighten the clamping

device only slightly so that the adapter does not warp�

►Tighten the sensor using a spanner until you can feel the end stop

(corresponding to a maximum tightening 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:

OUT1 p-switching OUT1 n-switching

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Pin 1 Ub+

Pin 3 Ub-

Pin 4 (OUT1) • binary switching output for pressure monitoring

• diagnostic output if [OU1] = [dESI]

Pin 2 (OUT2) • analogue output for system pressure

Core colours of ifm sockets:

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

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