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9.4 Service functions
9.4.1 Reading of the min/max values for system pressure

►

Select [HI] or [LO], briefly press [Set]�

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

Delete memory:

►

Select [HI] or [LO]�

►

Press [Set] and keep it pressed until [----] is displayed�

►

Press [Mode/Enter] briefly�

9.4.2 Reset of all parameters to factory setting

►

Select [rES]�

►

Press [Set] and keep it pressed until [----] is displayed�

►

Press [Mode/Enter] briefly�

We recommend taking 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 indications → chapter 7 Operating and display elements.

10.1 Reading of the set parameters

►

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

►

Press [Set] briefly�

> The unit displays the corresponding parameter value for about 15 s� After

another 15 s the unit returns to the Run mode�

10.2 Fault indication

[OL]

Overload pressure (measuring range exceeded)

[UL]

Underload pressure (below measuring range)

[SC1]

Short circuit in OUT1*

[SC2]

Short circuit in OUT2*

[SC]

Short circuit in both outputs*

[Err]

Flashing: internal fault

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

The messages SC1, SC2, SC, and Err are shown even if the display is switched off�

Содержание PN78 Series

Страница 1: ...Operating instructions Pressure sensor PN78xx PY7809 704788 00 0 2020 UK ...

Страница 2: ...g on a pressure carrying rear panel 10 5 6 Floor mounting 11 5 7 Mounting on a maintenance unit 12 6 Electrical connection 13 7 Operating and display elements 14 8 Menu 15 8 1 Menu structure 15 8 2 Explanation of the menu 16 9 Parameter setting 17 9 1 General parameter setting 17 9 2 Setting of the output signals 19 9 2 1 Setting of the unit of measurement for system pressure 19 9 2 2 Setting of t...

Страница 3: ...ion Supplementary note 9 3 3 Setting of the damping for the switching outputs 20 9 3 4 Configuration of the display 20 9 3 5 Zero point calibration 21 9 4 Service functions 22 9 4 1 Reading of the min max values for system pressure 22 9 4 2 Reset of all parameters to factory setting 22 10 Operation 22 10 1 Reading of the set parameters 22 10 2 Fault indication 22 10 3 Setting ranges 23 11 Factory ...

Страница 4: ...roduct 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 p...

Страница 5: ...SI mbar PSI PN7809 PY7809 1 000 1 000 14 5 14 5 20 000 290 30 000 435 MPa bar 10 kPa bar 100 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 NOTE Risk of injury If pressures might occur which are hi...

Страница 6: ...changes its switching state 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 F...

Страница 7: ...connection 2 If both connections are connected to the pressure system the unit can work as a differential pressure sensor For proper function the following conditions must be met The pressure at the main connection must always be greater than the pressure at the ventilation connection However the pressure at the ventilation connection must not exceed 10 bar Note For differential pressure measureme...

Страница 8: ...ounting DIN rail TH 35 7 5 to EN 60715 E37340 Adapter R to R can be aligned E37350 T pipe mounting set includes T pipe with 3 connections G Reducer G to G Adapter R to R E37360 Thread extension 1 8 for flange mounting E30075 Push in air fitting for tube Ø 6 mm E30076 Push in air fitting for tube Ø 8 mm E30077 5 2 Pressure connections for differential pressure measurement Remove the label from the ...

Страница 9: ...nge Maximum tightening torque 2 5 Nm Hook the unit into the DIN rail and clip it into place Removal Lever out the mounting clip with a screwdriver at the top or at the bottom and remove the unit 5 4 Rear panel mounting Fix the unit with 2 screws M4 x 40 1 not included to the rear panel Maximum tightening torque 2 5 Nm ...

Страница 10: ...not included 5 fixing screws not included Cover the main pressure connection with an adapter plug G Maximum tightening torque 8 Nm Remove the gland for pressure connection Insert the O ring 3 x 2 and connect the connection to the medium carrying channel diameter 2 mm Fix the unit with 2 screws M4 x 40 to the rear panel Maximum tightening torque 2 5 Nm ...

Страница 11: ...he pressure connection or adapter G to the main pressure connection 1 and tighten Maximum tightening torque 8 Nm For mounting in a pressure carrying floor plate insert an O ring for sealing not included Place the unit on the floor plate Screw 4 screws M3 from the top through the flange into the floor plate Maximum tightening torque 1 5 Nm As an alternative Place the unit on the floor plate Screw 4...

Страница 12: ...tegrated in maintenance units by means of an adapter R to R order no E37350 or by means of the T pipe mounting set order no E37360 When using the indicated accessories the pressure sensor can be aligned Mounting with adapter Mounting with T pipe mounting set ...

Страница 13: ...nt must be adhered to Voltage supply to EN 50178 SELV PELV Disconnect power Connect the unit as follows 2 x p switching 2 x n switching Pin 1 Ub Pin 3 Ub Pin 4 OUT1 binary switching output pressure monitoring Pin 2 OUT2 binary switching output if OU2 Hno Hnc Fno or Fnc diagnostic output if OU2 dESI Core colours of ifm sockets 1 BN brown 2 WH white 3 BU blue 4 BK black ...

Страница 14: ...7 LED 8 switching state of the corresponding output 9 Alphanumeric display 4 digits Indication of the current system pressure Indication of the parameters and parameter values 10 Set button Setting of the parameter values scrolling by holding pressed incrementally by pressing once 11 Mode Enter button Selection of the parameters and acknowledgement of the parameter values ...

Страница 15: ...15 UK 8 Menu 8 1 Menu structure ...

Страница 16: ...limit values hysteresis function H or window function F either normally open no or normally closed nc Diagnostic signal OU2 dESI EF Extended functions opening of menu level 2 Uni Standard unit of measurement for system pressure HI Maximum value memory for system pressure LO Minimum value memory for system pressure tCOF Teach zero point calibration COF Manually enter the zero point calibration dS1 ...

Страница 17: ...ter flashes for 5 s After 5 s setting value is changed incrementally by pressing the button once or continuously by keeping the button pressed 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 Acknowledgement of the parameter value Press Mode Enter briefly The parameter is d...

Страница 18: ... parameter of the sub menu is displayed here Uni Locking unlocking The unit can be locked electronically to prevent unintentional settings Make sure that the unit is in the normal operating mode Press Mode Enter Set for 10 s Loc is displayed During operation Loc is briefly displayed if you try to change parameter values For unlocking Press Mode Enter Set for 10 s uLoc is displayed On delivery unlo...

Страница 19: ...is function normally closed Fno window function normally open Fnc window function normally closed dESI output 2 is used as a diagnostic output 9 2 3 Setting of the switching limits Select SP1 SP2 and set the value at which the output switches Select rP1 rP2 and set the value at which the output switches off rPx is always smaller than SPx The unit only accepts values which are lower than the value ...

Страница 20: ...owing fix values can be set they define the switching frequency f of the output dAP 3 6 10 17 30 60 125 250 500 f Hz 170 80 50 30 16 8 4 2 1 9 3 4 Configuration of the display Select diS and set the update rate and orientation of the display d1 update of the measured values every 50 ms d2 update of the measured values every 200 ms d3 update of the measured values every 600 ms rd1 rd2 rd3 display a...

Страница 21: ...ue for PN7809 PY7809 in Setting value for PN7834 in 1 0 2 2 0 6 3 0 9 0 1 4 1 2 0 1 5 1 6 0 2 6 2 0 0 2 7 2 4 0 2 8 2 7 0 3 9 3 0 0 3 10 3 4 0 4 As an alternative automatic adjustment of the offset in the range 0 bar 10 of the measuring span Make sure that the differential pressure is 0 bar or as close as possible to the 0 bar mark Press Mode Enter until tCOF appears Press Set and keep it pressed ...

Страница 22: ...es out its measurement and evaluation functions and provides output signals according to the set parameters Operating indications chapter 7 Operating and display elements 10 1 Reading of the set parameters Press Mode Enter until the requested parameter is displayed Press Set briefly The unit displays the corresponding parameter value for about 15 s After another 15 s the unit returns to the Run mo...

Страница 23: ...P2 rP1 rP2 ΔP min max min max PN7834 bar 0 90 10 00 0 95 9 95 0 05 PSI 13 145 14 144 1 MPa 0 090 1 000 0 095 0 995 0 005 PN7809 PY7809 mbar 975 1000 980 995 5 PSI 14 1 14 5 14 2 14 4 0 1 kPa 97 5 100 0 98 0 99 5 0 5 ΔP step increment ...

Страница 24: ...tting SP1 25 VMR rP1 23 VMR OU1 Hno OU2 Hno SP2 75 VMR rP2 73 VMR COF 0 0 dS1 0 0 dr1 0 0 dS2 0 0 dr2 0 0 P n PnP dAP 6 diS d2 Uni bAr the indicated percentage of the final value of the measuring range VMR of the corresponding sensor in bar is set ...

Страница 25: ...25 UK More information at www ifm com ...

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