IFM Electronic PF2058 Operating Instructions Manual

Operating instructions

Electronic pressure sensor

PF2058

UK

704590 / 00 03 / 2009

Contents

Menu structure.........................................................................................................3

Safety instructions ...................................................................................................4

Controls and indicating elements ............................................................................4

Function and features ..............................................................................................5

Operating modes .....................................................................................................6

Installation ...............................................................................................................7

Electrical connection................................................................................................9

Programming .........................................................................................................10

Installation and set-up / operation ......................................................................... 11

Technical information / Functioning / Parameters..................................................12

Adjustable parameters .......................................................................................12

Technical data ....................................................................................................17

Scale drawing .....................................................................................................18

Setting ranges ....................................................................................................19

2

Menu structure

RUN

M

S

M

M

M

S

M

M

S

M

S

M

M

S

M

M

S

M

S

M

M

S

M

S

M

S

M

M

S

M

M

S

M

M

S

M

M

S

M

M

S

M

M

S

M

RUN

M

M

M

M

M

M

M

S

M

M

S

M

M

S

M

M

S

M

S

S

M

UK

OU2 = Hno, Hnc, Fno, Fnc
OU2 = I, U

3

Safety instructions

 









Read the product description before installing the unit. Ensure that the product is
suitable for your application without any restrictions.

Non-adherence to the operating instructions or technical data can lead to personal
injury and/or damage to property.

In all applications check compliance of the product materials (see Technical data)
with the media to be measured.

Controls and indicating elements

1

2

3

4

7-segment display

2 x LED red

Mode / Enter button

Set button

Display of the system pressure,
display of parameters and parameter values.

Switching status; lights if output I / II has switched.

Selection of the parameters and acknowledgement of
the parameter values.

Setting of the parameter values (scrolling by holding
pressed; incremental by pressing briefly).

4

Function and features

The pressure sensor detects the system pressure.•
It unit shows the current system pressure on its display,•
It generates 2 output signals according to the set output configuration.•

Output 1 Output 2

Analogue output

(only output 2)

hysteresis function / N.O (Hno)

Switching function

(output 1 and output 2; function can be

selected for each output separately)

Output polarity

(applies to both switching outputs)

hysteresis function / N.C (Hnc)

window function / N.O. (Fno)

window function / N.C. (Fnc)

p-switching (PnP)

n-switching (nPn)

Applications (Type of pressure: relative pressure)

Order no. Measuring range

mbar -13 ... 250 10 000 (10 bar) 30 000 (30 bar)

PF2058

inH2O -5.0 ... 100 4 000 12 000

Permissible

overl. pressure

I: 4 ... 20 mA

U: 0 ... 10 V

UK

Bursting

pressure

kPa -1.3 ... 25.0 1 000 (1 MPa) 3 000 (3MPa)

Avoid static and dynamic overpressure exceeding the given overload
pressure.
Even if the bursting pressure is exceeded only for a short time the unit can
be destroyed (danger of injuries)!

5

Operating modes

Run mode

Normal operating mode
At power on the unit is in the Run mode. It carries out its measurement and
evaluation functions and provides output signals according to the set parameters.
The display shows the current system pressure (can be deactivated). The red
LEDs indicate the switching state of the outputs.

Display mode

Indication of parameters and the set parameter values
When the “Mode/Enter” button is pressed briefly, the unit passes to the Display
mode which allows parameter values to be read. The internal sensing, processing
and output functions of the unit continue as if in Run mode.

The parameter names are scrolled with each pressing of the “Mode/Enter” •
button.
When the “Set” button is pressed briefly, the corresponding parameter value is •
displayed for 15 s. After another 15 s the unit returns to the Run mode.

Programming mode

Setting of the parameter values
While viewing a parameter value pressing the “Set” button for more than 5 s
causes the unit to enter the programming mode. You can alter the parameter
value by pressing the “Set” button and confirm the new value by pressing the
“Mode/Enter” button. The internal sensing, processing and output functions of the
unit continue as if in Run mode with the original parameter values unless a new
value is confirmed. The unit returns to the Run mode when no button has been
pressed for 15 s.

6

Installation

C

A

B





Before mounting and removing the sensor, make sure that no pressure is
applied to the system.

The unit is adaptable for various
process fittings by Aseptoflex
adapters (to be ordered separately as
accessories).

Mount adapter (C) to the sensor first,
then sensor + adapter to the process
connection by means of a nut, a
clamping flange or similar (B).

A = freely rotatable housing

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.

UK

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

Weld the adapter first. Then mount the sensor.

7

Mounting of the Aseptoflex adapter

D

�

E
F

36

Step 1
Grease thread and sealing chamfer of

the sensor and of the adapter with the
greasing paste supplied.

The greasing paste is food-grade
(USDA-H1 84-201).

Make sure that the O-ring (D) is
correctly positioned.

1

1 = Grease

Step 2
Screw the sensor into the adapter.

Avoid mechanical influence on the
sealing chamfers.

Step 3
Clamp sensor and adapter into a

clamping device (E). The sealing
chamfers (F) must not be damaged.

Tighten the sensor with a spanner until
you can feel the end stop.

If you continue to turn, this can have adverse effect on the sealing.

8

Electrical connection

L

L

+

3

4

2

1

BU

BK

WH

BN

2: OUT2
4: OUT1

L

L

+

3

4

2

1

BU

BK

WH

BN

2: OUT2
4: OUT1

L

L

+

3

4

2

1

BU

BK

WH

BN

2: OUT2
4: OUT1

L

L

+

3

4

2

1

BU

BK

WH

BN

2: OUT2
4: OUT1

3

1

4

2

The unit must be connected by a suitably qualified electrician.
The national and international regulations for the installation of electrical

equipment must be observed.
Voltage supply to EN50178, SELV, PELV.

Disconnect power before connecting the unit as follows:

2 x p-switching 2 x n-switching

UK

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

Connector view (sensor)

Core colours of ifm sockets:
1 = BN (brown),
2 = WH (white),
3 = BU (blue),
4 = BK (black)

9

Programming

Mode/Enter Set

Mode/Enter Set

Mode/Enter Set

Press the Mode/Enter button several

1

2

3

4

Change more parameters:

Start again with step 1.

times until the respective parameter is

displayed.

Press the Set button and keep it

pressed. The current parameter value

flashes for 5 s, then the value is

increased* (incremental by pressing

briefly or scrolling by holding pressed).

Press the Mode/Enter button briefly

(= acknowledgement).

The parameter is displayed again, the

set parameter value becomes effective.

Finish programming:

Wait for 15 s or press the Mode/Enter

button until the current measured value

is indicated again.

*Decrease the value: Let the display of the parameter value move to the maximum setting
value. Then the cycle starts again at the minimum setting value.
Select the display unit (Uni) before setting the switch points (SPx, rPx) or the limits for the
analogue output signal (ASP, AEP). This avoids rounding errors generated internally during
the conversion of the units and enables exact setting of the values.
If no button is pressed for 15 s during the setting procedure, the unit returns to the Run
mode with unchanged values.

The unit can be electronically locked to prevent unwanted adjustment of the set
parameters: Press both pushbuttons for 10 s (the unit must be in Run mode).
Indication goes out briefly (acknowledgement of locking / unlocking).

Units are delivered from the factory in the unlocked state.
With the unit in the locked state

is indicated briefly when you try to change

parameter values.

10

Installation and set-up / operation

AB

After mounting, wiring and setting check whether the unit operates correctly.
Faults displayed during operation

Overload (above measuring range of the sensor).

Underload (below measuring range of the sensor).

Flashing: short circuit in the switching output 1*.

Flashing: short circuit in the switching output 2*.

Flashing: short circuit in both switching outputs*.

*The output concerned is switched off as long as the short circuit exists.

Cleaning of the filter cover

If viscous and residues producing
media clog the filter cover of
the sensor (and thus reduce the
measuring accuracy slightly), you
can clean it.

Unscrew the filter cover (B) (use •
a pair of pliers with plastic­covered jaws for this). Clean the
cover thoroughly.

The vent (A) should only be •

UK

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).

11

Technical information / Functioning / Parameters

Adjustable parameters

Switch-on point 1 / 2

Upper limit value at which the output changes its switching status.
SP2 is active only if OU2 = Hno, Hnc, Fno or Fnc.

Switch-off point 1 / 2

Lower limit value at which the output changes its switching status.
rPx is always lower than SPx. The unit only accepts values which are lower
than SPx.
Changing the switch-on point also changes the switch-off point (the distance
between SPx and rPx remains constant).
If the distance is higher than the new switch point, it is automatically
reduced (rPx is set to the minimum setting value).
rP2 is active only if OU2 = Hno, Hnc, Fno or Fnc.

SettingrangeforSPx/rPx:→page19.

Configuration of output 1

4 switching functions can be set:

Hno = hysteresis / normally open ­Hnc = hysteresis / normally closed ­Fno = window function / normally open ­Fnc = window function / normally closed -

Configuration of output 2

4 switching functions and 2 analogue signals can be set:

Hno = hysteresis / normally open ­Hnc = hysteresis / normally closed ­Fno = window function / normally open ­Fnc = window function / normally closed ­I = analogue output 4 ... 20mA ­U = analogue output 0 ... 10V -

Analogue start point

Measured value at which 4 mA / 0 V is provided.

12

ASP is active only if OU2 = I or U.

Analogue end point

Measured value at which 20 mA / 10 V is provided.
Minimum distance between ASP and AEP = 25% of the final value of the
measuring range (scaling factor 4).
AEP is active only if OU2 = I or U.

SettingrangeforASP/AEP:→page19.

Enhanced functions

This menu item contains a submenu with additional parameters.
You can access these parameters by pressing the SET button briefly.

Min-Max memory for system pressure

HI: displays the highest measured pressure•
LO: displays the lowest measured pressure•

Erase the memory:

Press the “Mode/Enter” button until HI or LO is displayed. ­Press the “Set” button and keep it pressed until “- - -” is displayed. ­Then press the “Mode/Enter” button briefly. -

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 measuring range (with scaling •
as factory setting (ASP = 0% and AEP = 100%),
in steps of 0.1% of the value of the measuring range.•

Calibration reset

Resets the calibration set by COF to the value set at the factory.

Press the “Mode/Enter” button until CAr is displayed. ­Press the “Set” button and keep it pressed until “- - -” is displayed. ­Then press the “Mode/Enter” button briefly. -

Delay time for the switching outputs

dSx = switch-on delay; drx = switch-off delay
The output does not immediately change its switching status when the
switching condition is met but when the delay time has elapsed. If the
switching condition is no longer met when the delay time has elapsed, the

UK

switching state of the output does not change.

Setting range: 0 / 0.1 ... 50 s adjustable in steps 01 s •
(0 = delay time not active),
indicated in seconds.•

dS2 and dr2 are not active, if OU2 = I or U.

Output polarity

2 options can be selected:

PnP = positive switching ­nPn = negative switching -

This setting applies to both switching outputs.

13

Damping for the switching outputs

Pressure peaks of short duration or high frequency can be filtered out.
dAP-value = response time between pressure change and change of the
switching status in seconds (s).

Setting range: 0 ... 4 s (0 = dAP is not active),•
in steps of 0.01 s.•

Correlation between switching frequency and dAP: f

max

=

1

2 × dAP

Damping for the analogue signal

Pressure peaks of short duration or high frequency can be filtered out.
dAA-value = response time between pressure change and change of the
switching status in seconds (s).

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

dAA is active only if OU2 = I or U.

Setting of the display

9 options can be selected:

d1 = update of the measured value every 50 ms•
d2 = update of the measured value every 200 ms•
d3 = update of the measured value every 600 ms•

The update interval only refers to the display. It has no effect on the outputs.

ph = display of the measured peak value remains for a short time (peak •
hold).
rd1, rd2, rd3, rph = display as d1, d2, d3, Ph; but rotated 180°.•
OFF = In the Run mode the display of the measured value is deactivated.•

If one of the buttons is pressed, the current measured value is displayed for
15 s. Another press of the Mode/Enter button opens the Display mode. The
LEDs remain active even if the display is deactivated.

Display unit

The measured value and the values for SPx / rPx can be displayed in the
following units:
bAr (= mbar), H2O (inH2O), PA (= kPa).
Select the display unit before setting the switch points (SPx, rPx) and the
limits for the analogue output signal (ASP, AEP). This avoids rounding

14

errors generated internally during the conversion of the units and enables
exact setting of the values.
Setting at the factory: Uni = bAr.

Hysteresis function:

t

P

SP

rP

1
0

1
0















The hysteresis keeps the switching state
of the output stable if the system pressure
varies about the preset value. With the
system pressure rising, the output switches
when the switch-on point has been reached
(SPx). With the system pressure falling

1

the output does not switch back until the
switch-off point (rPx) has been reached.

The hysteresis can be adjusted: First the
switch-on point is set, then the switch-off

Hysteresis1:

point with the requested distance.

Window function:

The window function enables the
monitoring of a defined acceptable range.
When the system pressure varies between
the switch-on point (SPx) and the switch-off
point (rPx), the output is switched (window
function / NO) or not switched (window
function / NC).

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

Hno
Hnc

UK

1

Fno

Fnc

rPx. SPx = upper value, rPx = lower value.

Acceptable range1:

Scaling the measuring range (analogue output)

With the parameter “Analogue start point” (ASP) the measured value at which •
the output signal is 4 mA or 0 V is defined.

With the parameter “Analogue end point” (AEP) the measured value at which •
the output signal is 20 mA or 10 V is defined.

Minimum distance between ASP and AEP = 25 % of the final value of the
measuring range (scaling factor 4).

15

Voltage output 0 ... 10 V

U [V]

P

10

MEW

0-1

U [V]

P

10

AEP

ASP-1 0

MEW

U [V]

P

10

AEP

ASP-1 0

MEW

I [mA]

P

4

20

MEW (AEP)

0 (ASP)-1

I [mA]

P

4

20

AEP

ASP-1

0

MEW

I [mA]

P

4

20

AEP

ASP-1 0

MEW

Factory preset Measuring range scaled

MEW = final value of the measuring range
The output signal is between 0 and 10 V in the set measuring range.
It is also indicated:
System pressure above the measuring range: output signal > 10 V.

Current output 4 ... 20 mA

Factory preset Measuring range scaled

MEW = final value of the measuring range
The output signal is between 4 and 20 mA in the set measuring range.
It is also indicated:

System pressure above the measuring range: output signal > 20 mA.•
System pressure below the measuring range: output signal drops to max. 3.2 mA •
(depending on the scaling).

16

Technical data

Operating voltage [V] ......................................................................................... 20 ... 30 DC

Current consumption [mA] ..............................................................................................< 60

Current rating [mA] ....................................................................................................2 x 250

Short-circuit protection, reverse polarity protection / overload protection,
Integrated Watchdog

Voltage drop [V] ................................................................................................................< 2

Power-on delay time [s] ................................................................................................... 0.2

Min. response time switching outputs [s] .............................................................................3

Switching frequency [Hz] .....................................................................................170...0.125

Analogue output (measuring range scaleable) ................................... 4 ... 20 mA / 0 ... 10 V

Max. load current output [Ω] ..............................................(UB - 10) x 50; 700 bei U

Min. load with voltage output [

Ω

] ...................................................................................2000

= 24V

B

UK

Min. response time analogue output [ms]............................................................................3

Accuracy / deviations (in % of the span)

Characteristics deviation (linearity, incl. hysteresis and repeatability) -

1)

2)

................< ± 0.6

Linearity - .................................................................................................................< ± 0.5

Hysteresis - ..............................................................................................................< ± 0.1

Repeatability (with temperature fluctuations < 10K) - ..............................................< ± 0.1

Long-time stability (in % of the span per year) - ......................................................< ± 0.1

Temperature coefficients (TEMPCO) in the compensated ­temperature range 0 ... +80°C (in % of the span per 10 K)

Greatest TEMPCO of the zero point / of the span - .................................. < ± 0.1 / < ± 0.4

Materials (wetted parts) ....................................................ceramics (99.9 % Al2 O3); PTFE;

stainless steel 316L / 1.4435; surface characteristics: Ra < 0.4 / Rz 4

Housing material..............stainless steel 316L / 1.4404; PBT (Pocan); PC (Macrolon); PEI;

EPDM/X (Santoprene); FPM (Viton)

Protection ............................................................................................................... IP 67 / III

Ω

Insulation resistance [M

] ........................................................................> 100 (500 V DC)

Shock resistance [g] ............................................................... 50 (DIN / IEC 68-2-27, 11ms)

Vibration resistance [g] ................................................. 20 (DIN / IEC 68-2-6, 10 - 2000 Hz)

Switching cycles min. .......................................................................................... 100 million

Operating temperature [°C] .................................................................................. -25 ... +80

Medium temperature [°C] ..................................................................................... -25 ... +80

Storage temperature [°C]...................................................................................... -40...+100

EMC IEC 1000-4-2 ESD: ................................................................................ 4 / 8 KV

IEC 1000-4-3 HF radiated: ......................................................................... 10 V/m

IEC 1000-4-4 Burst: .......................................................................................2 KV

IEC 61000-4-6 HF conducted: ....................................................................... 10 V

1)

all indications are referred to a turn down of 1:1

2)

limit value setting to DIN 16086

17

Scale drawing





















 



1: 7-segment display
2: programming button
3: Aseptoflex sealing edge
4: Aseptoflex thread

18

Setting ranges

SP1 / SP2 rP1 / rP2 ASP AEP

Uni = bAr

min max min max min max min max

PF2058 mbar -11 250 -12 249 -13 188 50 250 1

SP1 / SP2 rP1 / rP2 ASP AEP

Uni = H2O

min max min max min max min max

∆P

∆P

PF2058

Uni = PA

PF2058 kPa -1.1 25.0 -1.2 24.9 -1.3 18.8 5.0 25.0 0.1

∆P=increments

inH2O

-4.4 100 -4.8 99.6 -5.0 74.9 20.1 100 0.1

SP1 / SP2 rP1 / rP2 ASP AEP

min max min max min max min max

UK

∆P

19

Set parameter values

20