IFM PG2734 Flush pressure sensor Operating Instructions

Operating instructions

Electronic manometer

PG2734

Contents

1 Preliminary note ��3

1�1 Symbols used ��3

2 Safety instructions ��4

3 Functions and features ��5

3�1 Applications ��5

4 Function ��5

4�1 Process measured signals ��5

4�2 Pressure monitoring / switching function ��6

4�3 Pressure monitoring / analogue function ��6

4�4 Customer-specific calibration ��7

5 Installation��8

5�1 Units with G1 / Aseptoflex Vario process connection��9

5�2 Use in hygienic areas to 3A ��11

5�3 Use in hygienic areas to EHEDG ��11

5�4 Ventilation diaphragm ��12

5�4�1 Function ventilation diaphragm ��12

5�5 Filter cover ��13

6 Electrical connection ��14

7 Operating and display elements ��15

8 Menu ��16

8�1 Menu structure: main menu ��16

8�2 Explanation of the main menu ��17

8�3 Menu structure: level 2 (extended functions) ��18

8�4 Explanation of the menu level 2 ��19

9 Parameter setting ��20

9�1 General parameter setting ��20

9�2 Configuration of the digital display (optional) ��22

9�3 Set output signals ��23

9�3�1 Set output functions ��23

9�3�2 Set switching limits ��23

9�3�3 Scale analogue value for OUT2 ��23

9�4 User settings (optional) ��24

2

9�4�1 Carry out zero point calibration ��24

9�4�2 Set delay time for OUT1 ��24

9�4�3 Set switching logic for OUT1 ��24

9�4�4 Set damping for the switching signal ��24

9�4�5 Set damping for the analogue signal ��25

9�4�6 Calibrate curve of measured values ��25

9�5 Service functions ��26

9�5�1 Read min/max values for system pressure ��26

9�5�2 Reset all parameters to factory setting ��26

10 Operation ��26

10�1 Read set parameters ��26

10�2 Error indications ��26

10�3 Setting ranges ��27

UK

11 Factory setting ��27

1 Preliminary note

1.1 Symbols used

► Instruction

> Reaction, result

[…] Designation of pushbuttons, buttons or indications

→ Cross-reference

Important note

Non-compliance can result in malfunctions or interference�

Information

Supplementary note�

3

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�

• 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�

4

3 Functions and features

The unit monitors the system pressure in a plant�

3.1 Applications

Type of pressure: relative pressure

Information on pressure rating and bursting pressure → data sheet.

Avoid static and dynamic overpressure exceeding the given 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!

The unit can be operated at media temperatures up to 145°C (max� 1h) /

125°C (permanently)� Therefore it is suitable for all standard cleaning and sterilisation processes (CIP, SIP)�

Not to be used in a system that has to fullfill D10�1�2/74-03 of 3A standard 74-03�

UK

4 Function

4.1 Process measured signals

• The unit generates 2 output signals according to the parameter settings�

OUT1 • Switching signal for system pressure limit value�

OUT2 • Analogue signal (4��20 mA, 20��4 mA)�

• The unit displays the current system pressure�

Analogue display: circular scale with pointer�

Digital display (alphanumeric display, 4 digits)�

• In addition, an LED ring with one of the following display options is available:

Display of set point and reset point�

Trend display (rising pressure / falling pressure)�

Lag indicator function for maximum value or minimum value�

Display of pulsating signals and pressure peaks�

5

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) with the requested difference�

• 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 difference between SP1 and rP1� SP1 = upper value, rP1 = lower value�

1 2

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

4.3 Pressure monitoring / 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 teaching process or by entering a value for the

ASP and AEP parameters�

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

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

6

Factory setting Measuring range scaled

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

1 : [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 to 20�5 mA at [OU2] = [I]�

-Output signal 4 to 3�8 mA at [OU2] = [InEG]�

• System pressure below the measuring range:

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

-Output signal 20 to 20�5 mA at [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� They must be within the measuring range and not in the extended display range�

• 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]).

7

UK

• 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 at factory setting

• 2 = curve of measured values after calibration

5 Installation

► Before installing and removing the unit make sure that no pressure is applied to the system and there is no medium in the pipe�

Note: If „0%“ is displayed and no pointer is visible, this does not mean that no pressure is applied to the system!

► Note dangers related to extreme machine / medium temperatures�

We recommend horizontal installation for high medium temperatures�

When installed near agitators or pumps, pulsation fluctuations may influence the function of the unit�

8

5.1 Units with G1 / Aseptoflex Vario process connection

► Insert the unit with process adapter into the process connection and tighten using a spanner�

Information about available adapters at www�ifm�com�

► Observe the instructions of the adapter�

► Use a lubricating paste which is suitable and approved for the application�

► Tighten firmly� Recommended tightening torque: 35 Nm

Depends on the sealing type, the pressure load and the lubrication!

The unit can be fixed to different process connections�Options are as follows:

1 Installation using an adapter with sealing ring (hygiene-compliant)

Order no� E332xx / E333xx�

► To meet the hygiene regulations use a process adapter with leakage port�

The adapters are supplied with EPDM O-ring (order no� E30054)�

More sealing rings are available as accessories:

• FKM O-ring (order no� E30123)

• PEEK sealing ring (order no� E30124)� The PEEK sealing ring is longterm stable and maintenance-free�

► When you replace the PEEK sealing ring or change from a PEEK sealing ring to an O-ring the process adapter also needs to be replaced with a new equivalent adapter�

UK

9

10

2

3

4

Installation using a welding adapter with sealing ring

(hygiene-compliant)

► To meet the hygiene regulations use a process adapter with leakage port�

► Make sure that the process adapter does not warp during welding� Use welding mandrel E30452�

► The sealing edge must not be damaged by subsequent surface treatment. (→ Details in operating instructions of the adapter).

The adapter is supplied with EPDM O-ring (order no� E30054)�

Another sealing ring is available as accessory:

• FKM O-ring (order no� E30123);

Installation using a process adapter with metal-to-metal seal

Order no� E337xx / E338xx

A long-term stable, maintenance-free and gap-free fitting in the metalto-metal seal is only valid for once-only mounting�

► If the sealing has to be installed several times, use a new adapter�

Installation to G 1 flange / G 1 bush

The process is sealed with the sealing ring at the back of the sensor�

► The sealing area on the flange / bush must be flush with the tapped hole and have a surface characteristic of min� Rz = 6�3�

5.2 Use in hygienic areas to 3A

The following applies to units with 3A certification:

► Only use adapters with 3A qualification for the process connection�

► Do not install the unit at the lowest point of the pipe or tank

(→ position 5) in order that the medium can run off the area of the measuring element�

UK

5.3 Use in hygienic areas to EHEDG

In case welded adapters are used, the food contact surface must be smooth (surface roughness Ra < 0�8 µm) and the welding has to be done according to EHEDG Guideline 9 and35�

The unit is suited for CIP (cleaning in process) when installed correctly�

► Observe the application limits (temperature and material resistance) according to the data sheet�

► Make sure that the sensor is integrated into the system according to EHEDG:

► Use self-draining installation�

► Only use process adapters permitted according to EHEDG with special seals required by the EHEDG position paper�

The gasket of the system interface must not be in contact with the sealing point of the sensor�

► In case of structures in a tank, the installation must be flush mount� If not possible then direct water jet cleaning and cleaning of dead spaces must be possible�

► Leakage ports must be clearly visible and must be installed facing downwards for vertical pipes�

11

► To avoid dead space adhere to the dimensions:

L < (D)�

1

L

D

1: Leakage port

5.4 Ventilation diaphragm

5.4.1 Function ventilation diaphragm

The ventilation diaphragm enables the relative pressure measurement since barometric and temperature-dependent pressure fluctuations between the measuring cell and the environment are compensated for�

The ventilation diaphragm is protected against damage by a screwed filter cover with circumferential ports�

For a correct functioning of the diaphragm please take the following into account:

► Remove soiling and cleaning agents immediately using plenty of limedeficient splash water�

If the sensor is in a cooling stage:

► Avoid contact of the diaphragm with liquids:

> Avoids negative pressure in the measuring system resulting in a slightly falsified measured value and additional strain on the diaphragm�

12

5.5 Filter cover

Replace filter cover:

1 Exchange the filter cover incl� GORE diaphragm (E30142)�

2 Replace the filter cover with a closed version (E30148) (*)

Improve the protection of the filter cover:

3 Replace the filter cover with a version with a tube fitting and a vent tube that ends in a protected and dry area (E30139)

4 Set of accessories (E30467) with integrated ventilation diaphragm, for high degree of soiling and / or high climate pollution�

Function: ( → Installation instructions E30467)

► Avoid soiling and moisture during the exchange

► Clean the thread carefully and without residues

► Do not damage the adhesive area of the sensor

► Observe the orientation of the filter cover

(→ Installation instructions E30139 / 30467)

UK

1 2 3

4

13

( * )

When using the closed cover cap, there is no pressure compensation of the measuring cell any more� This results in measurement deviations caused by:

• fluctuations of the atmospheric pressure

• pressure fluctuations inside the unit in case of temperature fluctuations

(Δ 10 K ≤ 30 mbar).

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 according to EN 50178, SELV, PELV�

► Disconnect power�

► Connect the unit as follows:

OUT1 positive switching OUT1 negative switching

Pin 1

Pin 3

Ub+

Ub-

Pin 4 (OUT1) • Binary switching output pressure monitoring

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)

14

7 Operating and display elements

1

2

3

4

Mode/

Enter

Set 5

6

1: Analogue display

-Display of the current system pressure in kPa and MPa�

2: LED ring

According to the setting of parameter [LED] (→ 9.2):

-Display of set point and reset point�

-Lag indicator function for maximum value or minimum value�

-Display of pulsating signals and pressure peaks�

-Trend display: rising pressure or falling pressure�

3: Indicator LEDs

-LED 1, 2 = not used�

-LED 3 = system pressure of the digital display in kPa�

-LED 4 = system pressure of the digital display in MPa�

-LED 5 = not used�

-LED 6 = system pressure in % of the scaling (range ASP to AEP) or COF value in %�

-LED 7 = not used�

-LED 8 = switching status OUT1 (lights if output 1 is switched)

4: Alphanumeric display, 4 digits

-Display of the current system pressure�

-Display of the parameters and parameter values�

5: Touch button Set*

-Setting of the parameter values (continuously by touching permanently; step by step by touching briefly several times)�

15

UK

6: Touch button Mode/Enter*

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

* The two touch buttons are activated simply by touching / deactivated by releasing the touch button�

The touch button must be completely covered to be activated�

Slow covering (e�g� liquid flows over the display) does not activate the touch button�

8 Menu

8.1 Menu structure: main menu

M

M

M

M

M

M

M

M

S

M

S

M

S

M

S

M

S

M

S

M

S

M

S

M

1: Change to menu level 2 (extended functions)

16

1

8.2 Explanation of the main menu

SP1/rP1 Upper / lower limit value for system pressure at which OUT1 switches�

OU1 Output function for OUT1:

• Switching signal for the pressure limit values: hysteresis function [H ��] or window function [F ��], either normally open [� no] or normally closed [� nc]�

OU2 tCOF tASP

Output function for OUT2:

• Analogue signal for the current system pressure: 4��20 mA [I], 20��4 mA

[InEG]�

Teach zero-point calibration� tAEP

EF

Teach analogue start point for system pressure: set measured value at which

4 mA is provided (20 mA if [OU2] = [InEG])�

Teach analogue end point for system pressure: set measured value at which

20 mA is provided (4 mA if [OU2] = [InEG])�

Extended functions / opening of menu level 2�

UK

17

8.3 Menu structure: level 2 (extended functions)

1

M

M

M

M

M

M

M

S

M

S

M

S

M

S

M

S

M

S

M

S

M

M

M

M

M

M

M

S

M

S

M

S

M

S

M

S

M

S

M

S

M M

M

S

M M

S

M

S

M

S

M

M

1

1: Change to the main menu

18

dAA diS

LED

CAL

CP1

CP2 rES

HI

LO

COF dS1 dr1

P-n dAP

8.4 Explanation of the menu level 2

Uni

SELd

ASP

AEP

Standard unit of measurement for system pressure�

(Preset = kPa, no other unit available)�

Display mode:

• Pressure in kPa�

• Pressure in % of the set scaling of the analogue output�

Analogue start point for system pressure: measured value at which 4 mA is provided (20 mA if [OU2] = [InEG])�

Analogue end point for system pressure: measured value at which 20 mA is provided (4 mA if [OU2] = [InEG])�

Maximum value memory for system pressure�

Minimum value memory for system pressure�

Zero-point calibration�

Switch-on delay for OUT1�

Switch-off delay for OUT1�

Switching logic for OUT1: pnp or npn�

Damping for switching outputs and display�

Damping for analogue output (OUT2)�

Update rate and orientation of the display�

Setting for the LED ring�

Calibration function (setting the curve of measured values)�

Calibration point 1

Calibration point 2

Restore factory settings�

UK

19

9 Parameter setting

During parameter setting the unit remains in the operating mode� It continues its monitoring function with the existing parameters until the parameter setting has been completed�

Exceptions: changes to the parameters COF (→ 9.4.1), CP1 and CP2 (→ 9.4.6) take effect immediately�

9.1 General parameter setting

3 steps must be taken for each parameter setting:

1 Select parameter

► Touch [Mode/Enter] until the requested parameter is displayed .

Mode/

Enter

Set

2 Set parameter value

► Touch [Set] and keep it touched�

> Current setting value of the parameter flashes for 5 s�

> After 5 s: setting value is changed: step by step by touching briefly several times or continuously by touching permanently�

Mode/

Enter

Set

Numerical values are incremented continuously� To reduce the value: let the display move to the maximum setting value� Then the cycle starts again at the minimum setting value�

3 Acknowledge parameter value

► Touch [Mode/Enter] briefly�

> The parameter is displayed again�

The new setting value is saved�

Mode/

Enter

Set

Set other parameters

► Start again with step 1�

Finish parameter setting

► Touch [Mode/Enter] several times until the current measured value is displayed or wait for 15 s�

> The unit returns to the operating mode�

• Timeout:

If no touch button is activated for 15 s during parameter setting, the unit returns to the operating mode with unchanged values�

20

• Change from menu level 1 to menu level 2:

► Touch [Mode/Enter] until [EF] is displayed�

Mode/

Enter

Set

► Touch [Set] briefly�

> The first parameter of the submenu is displayed (here: [Uni])�

If the menu level 2 is protected by an access code, "Cod1" flashes in the display�

► Touch [Set] and keep it touched until the valid code no� appears�


On delivery by ifm electronic: no access restriction�

Mode/

Enter

Set

• Locking / unlocking

The unit can be locked electronically to prevent an unintentional operation�

► Make sure that the unit is in the normal operating mode�

► Touch [Set],

► additionally touch [Mode/Enter] and keep both buttons touched for 10 s�

> The LED for the current unit of measurement flashes, the current system pressure continues to be displayed� After 10 s the display goes out for approx� 1 s�

► Release [Mode/Enter] and [Set] again� Both buttons must be released within 4 s� If this does not happen, the unit remains unlocked�

> [Loc] is displayed, the unit is locked� �

During operation the indicator LED for the display unit (→ chapter 7) is flashing if you try to open the menu�

For unlocking:

► Make sure that the unit is in the normal operating mode�

► Touch [Set],

► additionally touch [Mode/Enter] and keep both buttons touched for 10 s�

> The LED for the current unit of measurement flashes, the current system pressure continues to be displayed� After 10 s the display goes out for approx� 1 s�

► Release [Mode/Enter] and [Set] again� Both buttons must be released within 4 s� If this does not happen, the unit remains unlocked�

> [uLoc] is displayed, the unit is unlocked�

On delivery: unlocked�

UK

21

9.2 Configuration of the digital display (optional)

Standard unit of measurement for system pressure�

(Preset = kPa, no other unit available)�

► Select [SELd] and set type of indication:

-[P]: system pressure inkPa�

-[P%]: system pressure in % of the set scaling of the analogue output; the following applies: 0% = ASP value / 100% = AEP value�

Note: display “0%” does not mean that no pressure is applied to the system�

► Select [diS] and set the update rate of the display:

-[d1]: update of the measured values every 50 ms�



-[OFF] = The measured value display is deactivated in the Run mode� Touching one of the buttons indicates the current measured value for 15 s� Touching the [Mode/Enter] button again activates the display mode� The indicator LEDs remain active even if the display is deactivated�

► Select [LED] and set the display function for the digital display and LED ring:

-[SPRP]: One LED on the LED ring indicates the set point and a second

LED the reset point�

-[HInd]: 2 adjacent LEDs on the LED ring mark the lag indicator for maximum value ([HInd], high indication)�

-[LInd]: 2 adjacent LEDs on the LED ring mark the lag indicator for minimum value ([LInd], low indication)�

To reset:

► Touch [Set] for 1 second�

> The two LEDs jump to the current position of the pointer�

-[Ph]: Display of pulsating signals and pressure peaks:

-In case of quick pressure changes (quickly pulsating signals) the digital display and LED ring indicate the minimum value and the maximum value�

-In case of one-time short pressure peaks the digital display and LED ring show the indication for a longer time�

-[Pdir]: The LED ring indicates the trend of the pressure changes (5

LEDs below the pointer for rising pressure; 5 LEDs above the pointer for falling pressure)�

A damping set with dAP or dAA also has an effect on this display�

22

9.3 Set output signals

9.3.1 Set output functions

► Select [OU1] and set the switching function:

-[Hno] = hysteresis function/NO�

-[Hnc] = hysteresis function/NC�

-[Fno] = window function/NO�

-[Fnc] = window function/NC�

► Select [OU2 ] and set the analogue function:

-[I] = current signal proportional to pressure 4…20 mA�

-[InEG] = current signal proportional to pressure 20…4 mA�

9.3.2 Set switching limits

► Select [SP1] and set the value at which the output switches�

► Select [rP1] and set the value at which OUT1 switches off� rP1 is always smaller than SP1� The unit only accepts values which are lower than SP1�

9.3.3 Scale analogue value for OUT2

► Set the minimum pressure requested in the system�

► Touch [Mode/Enter] until [tASP] appears�


> Current setting value flashes�

► Release [Set] when the display stops flashing�

> New setting value is displayed�


> The current system pressure is defined as start value for the analogue signal�

► Set the maximum pressure requested in the system�

► Touch [Mode/Enter] until [tAEP] appears�


> Current setting value flashes�

► Release [Set] when the display stops flashing�

> New setting value is displayed�


> The current system pressure is defined as end value for the analogue signal�

ASP / AEP can only be set automatically within defined limits (→ 12.1 Setting ranges).

If automatic setting is carried out at an invalid pressure value, [UL] or [OL] is displayed�

After acknowledgement by [Mode/Enter] [Err] flashes, the ASP value / AEP value is not changed�

UK

23

As an alternative:

► Select [ASP] and set the measured value at which 4 mA is provided (20 mA at [OU2] = [InEG])�

► Select [AEP] and set the measured value at which 20 mA is provided (4 mA at [OU2] = [InEG])�

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

9.4 User settings (optional)

9.4.1 Carry out zero point calibration

► Select [COF] and set a value between -5% and 5% of the final value of the measuring range� The internal measured value "0" is shifted by this value�

As an alternative: automatic adjustment of the offset in the range 0 kPa ±

5 %�

► Make sure that no pressure is applied to the system�

► Touch [Mode/Enter] until [tCOF] appears�


> The current offset value (in %) flashes briefly�

> The current system pressure is displayed�

► Release [Set]�

► Touch [Mode/Enter] briefly (= to confirm the new offset value)�

9.4.2 Set delay time for OUT1

[dS1] = switch-on delay / [dr1] = switch-off delay�

► Select [dS1] or [dr1] and set a value between 0�1 and 50 s (at 0�0 the delay time is not active)�

9.4.3 Set switching logic for OUT1

► Select [P-n] and set [PnP] or [nPn]�

9.4.4 Set damping for the switching signal

► Select [dAP] and set a value between 0�01 and 30 s� dAP value = response time between pressure change and change of the switching status in seconds�

[dAP] influences the switching frequency: f

[dAP] also has an effect on the display� max

= 1 ÷ 2dAP�

24

9.4.5 Set damping for the analogue signal

► Select [dAA] and set a value between 0�01 and 30 s� dAA value = response time between pressure change and change of the analogue signal in seconds�

9.4.6 Calibrate curve of measured values

If the unit is to adopt the settings for the calibration points, the following conditions must be adhered to:

-CP1 and CP2 must be within the measuring range (i�e� between ASP and AEP)�

-CP1 and CP2 must not be in the extended display range�

-Minimum distance between the calibration points CP1 and CP2 = 5 % of the final value of the measuring range�

-Maximum correction value = ± 2 % of the final value of the measuring range�

UK

► Set a defined reference pressure between ASP and AEP in the system�

► Select [CAL]�


> [CP1] is displayed�

► Touch [Set] for 5 s�

> The pressure measured by the unit is displayed�

► Touch [Set] until the set reference pressure is indicated (measured pressure = reference pressure) or the corresponding analogue signal is provided to OUT2�





Continue with a) or b)� a) Finish calibration:


> [CAL] is displayed� b) Change a 2nd point on the curve of measured values:

► Set a second defined reference pressure in the system�

► Touch [Set] for 5 s�

> The pressure measured by the unit is displayed�

► Touch [Set] until the set reference pressure is indicated (measured pressure = reference pressure) or the corresponding analogue signal is provided to OUT2�




> [CAL] is displayed, the process is finished�

25

9.5 Service functions

9.5.1 Read min/max values for system pressure

► Select [HI] or [LO] and touch [Set] briefly�

[HI] = maximum value, [LO] = minimum value�

Delete memory:

►

► Touch [Set] and keep it touched until [----] is displayed�

►

Select [HI] or [LO]�

Touch [Mode/Enter] briefly�

9.5.2 Reset all parameters to factory setting

► Select [rES]�

► Touch [Set] and keep it touched until [----] is displayed�


It is recommended to take down your own settings in the table before carrying out a reset (→13 Factory setting).

10 Operation

After power on, the unit is in the Run mode (= normal operating mode)� It carries out its measurement and evaluation functions and provides output signals according to the set parameters�

Operating indicators → 7 Operating and display elements.

Reset the lag indicator (if [LED] = [HInd] or [LInd]):

► Touch [Set] for 1 second�

> The two lag indicator LEDs jump to the current position of the pointer�

10.1 Read set parameters

► Touch [Mode/Enter] until the requested parameter is displayed�


> The unit displays the corresponding parameter value for about 15 s� After another 15 s it returns to the Run mode�

10.2 Error indications

[OL] Overload pressure (measuring range exceeded)�

[UL] Underload pressure (below measuring range)�

[SC1] Short circuit in OUT1� The output is switched off as long as the short circuit persists�

[Err] Flashing: internal error, invalid entry�

The messages SC1 and Err are displayed even if the display is switched off�

26

10.3 Setting ranges

SP1 rP1 ASP AEP min max min max min max min max

ΔP

PG2734 kPa -98 1600 -100 1598 -100 1350 150 1600 1

ΔP = step increment

11 Factory setting

SP1 rP1

OU1

OU2

COF / tCOF dAA dis

LED

CP1

CP2 dS1 dr1

P-n dAP

ASP / tASP

AEP / tAEP

Uni

SELd

Factory setting

250

248

Hno

I

0.0

0

1000 kPA

P

0.0

0.0

pnp

0.06

0.03

d2

SPRP

0.00

0.00

User setting

* = the indicated percentage of the final value of the measuring range (VMR) of the corresponding sensor is set�

UK

Further information at www�ifm�com

27

IFM PG2734 Flush pressure sensor Operating Instructions

Contents

1 Preliminary note

2 Safety instructions

3 Functions and features

4 Function

5 Installation

6 Electrical connection

7 Operating and display elements

8 Menu

9 Parameter setting

10 Operation

11 Factory setting

Related manuals

Table of contents

IFM PG2734 Flush pressure sensor Operating Instructions

Contents

1 Preliminary note

2 Safety instructions

3 Functions and features

4 Function

5 Installation

6 Electrical connection

7 Operating and display elements

8 Menu

9 Parameter setting

10 Operation

11 Factory setting

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Table of contents