IFM Electronic PI22, PI23 Operating Instructions Manual

Operating instructions

Electronic pressure sensor

PI22xx PI23xx

80009157 / 01 07 / 2018

Contents

1 Preliminary note �� 4

1�1 Symbols used ��4

2 Safety instructions ��4

3 Functions and features ��5

3�1 Applications ��5

4 Function �� 5

4�1 Operating modes ��6

4�1�1 2-wire operation �� 6

4�1�2 3-wire operation �� 6 4�2 Switching function (only for 3-wire operation) ��6 4�3 Analogue function ��7 4�4 Customer-specific calibration ��8 4�5 IO-Link ��10

4�5�1 General information ��10

4�5�2 Device-specific information ��10

4�5�3 Parameter setting tools ��10

5 Installation��10

5�1 Connection versions clamp seals ��10

6 Electrical connection �� 12

6�1 Connection for 2-wire operation ��12 6�2 Connection for IO-Link parameter setting ��12 6�3 Connection for 3-wire operation ��13

7 Operating and display elements ��14

8 Menu �� 15

8�1 Menu structure: main menu �� 15 8�2 Explanation of the main menu ��16 8�3 Menu structure: level 2 (extended functions) ��17 8�4 Explanation of menu level 2 ��18 8�5 Menu structure: level 3 (simulation) ��19 8�6 Explanation of menu level 3 ��20

9 Parameter setting ��21

9�1 Parameter setting in general ��21

9�2 Configure display (optional) �� 23 9�3 Set output signals ��24

9�3�1 Set output functions �� 24

9�3�2 Set switching limits ��24

9�3�3 Scale analogue value for OUT2 ��25 9�4 User settings (optional) �� 26

9�4�1 Carry out zero point calibration ��26

9�4�2 Set output status in fault condition ��26

9�4�3 Set delay time for the switching outputs �� 26

9�4�4 Set output logic for the switching outputs �� 26

9�4�5 Set damping for the switching signal �� 27

9�4�6 Set damping for the analogue signal �� 27

9�4�7 Calibrate curve of measured values ��27 9�5 Service functions ��28

9�5�1 Read min/max values for the system pressure ��28

9�5�2 Reset all parameters to factory setting ��28 9�6 Simulation function ��28

9�6�1 Open menu level 3 (simulation) �� 28

9�6�2 Set simulation value ��29

9�6�3 Set time for simulation ��29

9�6�4 Start simulation �� 29

10 Operation �� 30

10�1 Read the set parameters ��30 10�2 Change the display in the Run mode ��30 10�3 Self-diagnostics / fault indications ��30

11 Technical data ��33

11�1 Setting ranges �� 33 11�2 Technical data ��33

12 Factory setting ��34

1 Preliminary note

1.1 Symbols used

► Instructions > Reaction, result […] Designation of keys, buttons or indications → Cross-reference

Important note Non-compliance may result in malfunction or interference�

Information Supplementary note�

2 Safety instructions

• 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�

• Installation, electrical connection, set-up, operation and maintenance of the product must be carried out by qualified personnel authorised by the machine operator�

• Protect units and cables against damage�

3 Functions and features

The unit measures and monitors the system pressure in a plant�

3.1 Applications

Type of pressure: relative pressure

Order no. Measuring range

Permissible

overload pressure

Bursting

pressure

bar PSI bar PSI bar PSI PI2xx9 -1��1 -14�5��14�5 10 145 30 435 PI2xx7 -0�05��1 -0�73��14�5 10 145 30 435 PI2xx6 -0�124��2�5 -1�8��36�27 20 290 50 725 PI2xx5 -1��4 -14�5��58 30 435 50 725 PI2xx4 -1��10 -14�5��145 50 725 100 1450 PI2xx3 -1��25 -14�4��362�7 80 1160 150 2175

Avoid static and dynamic overpressure exceeding the specified overload pressure 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

may be destroyed� ATTENTION: risk of injury!

Not suitable for use where the criteria for paragraph D10�2/63-03 of the 3-A standard 63-03 have to be met�

4 Function

• The unit displays the current system pressure�

• It generates output signals according to the operating mode and the parameter setting�

• Moreover, it provides the process data via IO-Link�

• The unit is designed for fully bidirectional communication� So the following options are possible:

- Remote display: reading and display of the current system pressure�

- Remote parameter setting: reading and changing the current parameter setting�

- IO-Link parameter setting (→ 4.5)

4.1 Operating modes

The operating mode is defined by the wiring (→ 6 Electrical connection) and

automatically recognised by the unit�

4.1.1 2-wire operation

OUT2 (pin 2) Analogue signal proportional to pressure 4…20 mA or 20��4 mA

4.1.2 3-wire operation

OUT1 (pin 4)

• Switching signal for system pressure limit

• Communication via IO-Link

OUT2 (pin 2)

3 options:

• Switching signal for system pressure limit

• Analogue signal proportional to pressure 4��20 mA

• Analogue signal proportional to pressure 20��4 mA

4.2 Switching function (only for 3-wire operation)

OUTx changes its switching status 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) with the requested

difference�

• 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 difference between SPx and rPx� SPx = upper value, rPx = lower value�

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1 2

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

4.3 Analogue function

The analogue output can be configured�

• [OU2] defines whether the set measuring range is provided as 4��20 mA ([OU2] = [I]) or as 20��4 mA ([OU2] = [InEG])�

Scaling can be set by means of the teach process or by entering a value for the parameters ASP and AEP�

• Teaching the analogue start point [tASP] or setting the parameter [ASP] defines at which measured value the output signal is 4 mA (20 mA with [InEG])�

• Teaching the analogue end point [tAEP] or setting the parameter [AEP] defines at which measured value the output signal is 20 mA (4 mA with [InEG])�

Minimum distance between [ASP] and [AEP] = 25 % of the final value of the measuring range (turn-down 1:4); for PI2x09: 25 % of the measuring span�

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] 2: [OU2] = [InEG]

In the set measuring range 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 4 to 3�8 mA if [OU2] = [InEG]�

• System pressure below the measuring range:

- Output signal 4 to 3�8 mA if [OU2] = [I]�

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

4.4 Customer-specific calibration

The customer-specific calibration changes the curve of measured values

compared to the real measured values (shifting / change of the gradient → 9.4.6

[CAL])�

• Two calibration points can be defined (CP1, CP2)� The two points are independent of each other�

• The two calibration points must be within the scaled measuring range (→ 4.3 Pressure monitoring / analogue function)�

• The zero point calibration [COF] influences the calibration of the curve of

measured values. Recommendation: set [COF] to 0 (→ 9.4.1 [COF]), then

calibrate the curve of measured values�

After a change the calibration can be reset to factory setting (→ 9.5.2 [rES]).

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• P = measured pressure P‘ = modified measured value

• CP1 = calibration point 1 CP1‘ = modified measured value for CP1

• CP2 = calibration point 2

• 1 = curve of measured values with factory setting

• 2 = curve of measured values after calibration

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• P = measured pressure P‘ = modified measured value

• CP1 = calibration point 1 CP2 = calibration point 2 CP2‘ = modified measured value for CP2

• 1 = curve of measured values with factory setting

• 2 = curve of measured values after calibration

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• P = measured pressure P‘ = modified measured value

• CP1 = calibration point 1 CP1‘ = modified measured value for CP1

• CP2 = calibration point 2 CP2‘ = modified measured value for CP2

• 1 = curve of measured values with factory setting

• 2 = curve of measured values after calibration

4.5 IO-Link

4.5.1 General information

This unit has an IO-Link communication interface which requires an IO-Linkcapable module (IO-Link master) for operation� The IO-Link interface enables direct access to the process and diagnostic data and provides the possibility to set the parameters of the unit during operation� In addition, communication is possible via a point-to-point connection with a USB adapter cable�

More information about IO-Link → www�ifm�com�

4.5.2 Device-specific information

IODDs necessary for the configuration of the IO-Link unit and detailed information

about process data structure, diagnostic information and parameter addresses →

www�ifm�com�

4.5.3 Parameter setting tools

All necessary information about the required IO-Link hardware and software →

www�ifm�com�

5 Installation

5.1 Connection versions clamp seals

Clamp

connection to

pipe to DIN

11866

Effective diameter

PI22xx:

Deff = 34 mm

Effective diameter

PI23xx:

Deff = 47�5 mm

Series A - metric nominal width

DN 40

Di = 38 mm

nominal width

DN 50

Di = 50 mm

Series B - ISO nominal width

DN / OD 42�4 Di = 38�4 mm

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Series C -

ASME

nominal width DN / OD 1 ½“

Di = 34�8 mm

nominal width

DN / OD 2“

Di = 47�5 mm

Internal pipe diameter Di (d2) > diameter of the effective area of the diaphragm Deff (d1)�

► Before installing and removing the unit: Make sure that no pressure

is applied to the system� Please note when the system pressure is displayed in % of the span: "0" does not mean that no pressure is applied to the system!

► The diaphragm must not be dented or cleaned with pointed or hard

objects!

► The system seal must not be in contact with the diaphragm�

The installation position of the sensor influences the hydrostatic pressure of the fill fluid in the capillary tube of the diaphragm seal unit� A zero shift (i�e� when no pressure is applied to the system, "zero" is not displayed as a measured value) as a consequence of the installation position of the sensor can be corrected via the menu (→ 9.4.1)�

Use in hygienic areas to 3-A: orientation of the unit in pipes and tanks

Please note for optimised cleaning of the measuring element according to the 3-A criteria for hygienic areas:

To ensure that the medium can completely flow off the area of the diaphragm seal when the pipes or tanks are empty, choose positions 1 - 3 of the generally possible installation positions 1 - 5 (see figure on the right)�

Use in hygienic areas to EHEDG:

► Make sure that the sensor is integrated into the system according to EHEDG� ► Use seals with defined seal compression!

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IFM Electronic PI22, PI23 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual