Kobold PMP User manual

Operating Instructions
for
Differential Pressure Sensor
Model: PMP

PMP
page 2 PMP K03/0218
1.Contents
1.Contents........................................................................................................2
2.Note ..............................................................................................................3
3.Instrument Inspection....................................................................................3
4.Regulation Use..............................................................................................3
5.Operating Principle........................................................................................4
6.Mechanical Connection.................................................................................5
7.Electrical Connection ....................................................................................5
8.Operation ......................................................................................................6
8.1General ................................................................................................6
8.2Value setting ........................................................................................6
8.3Function matrix ....................................................................................7
9.Adjustment ....................................................................................................8
9.1Switching outputs [rELE]......................................................................8
9.2Analogue output [Out]..........................................................................9
9.3Simulation [SINU] ................................................................................9
9.4Password [CODE]..............................................................................10
10.Commissioning............................................................................................10
11.Maintenance ...............................................................................................11
12.Technical Information..................................................................................11
13.Dimensions .................................................................................................11
14.EU Declaration of Conformance..................................................................12
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

PMP
PMP K03/0218 page 3
2.Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
3.Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
Differential Pressure Sensor model: PMP
Operating Instructions
4.Regulation Use
Any use of the Differential Pressure Sensor, model: PMP, which exceeds the
manufacturer’s specification, may invalidate its warranty. Therefore, any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk
for such usage.

PMP
page 4 PMP K03/0218
5.Operating Principle
The differential pressure sensor PMP is used for controlling and measuring the
differential pressure of air or non-corrosive gases. It is mainly used for the
monitoring of filters and filter cartridges.
The devices are equipped as follows:
Differential Pressure Measurement
The differential pressure is shown on a four-digit LED display.
Limit Value Contact
The devices are provided with two programmable relays for monitoring the
differential pressure. Thus, the magnetic valves for the cleaning cycles can be
piloted or used for programming the alarm pressure.
Analogue Output
For a remote transmission, a 4 to 20 mA output signal is provided.

PMP
PMP K03/0218 page 5
6.Mechanical Connection
Before installation:
Make sure that the max. allowed operating pressures and service
temperatures are not exceeded (see section Technical Information)
Connect your tube to both screw connections.
The over-pressure side is marked with a “+” symbol,
the low-pressure side with a “-“ symbol.
7.Electrical Connection
Make sure that the supply wires are de-energised.
Plug in the system according to the following connecting drawing.
All connecting operations are completed, if the planned external devices are
connected to both limit contacts and to the analogue output.
The device can now be put into operation.
The adjustment of the output signals is described in the following sections.

PMP
page 6 PMP K03/0218
8.Operation
8.1 General
-button: Change display value -> main menu item
Change main menu item -> main menu
Change menu item -> submenu item
Change menu item/submenu item -> value setting
Change of digit at value setting
-button: Change main menu item -> display value
Change menu item -> main menu item
Change submenu item -> menu item
Change value setting -> menu item/submenu item
Automatic return to displayed value after 1 min without keypress!
8.2 Value setting
E
E
E
E
E
Save
Menu item
Menu item

PMP
PMP K03/0218 page 7
8.3 Function matrix
ESC
E
Limit value 2 [SEt2]
Switching function [nOd2]
Hysteresis [HYS2]
Delay time [dEL2]
Alarm 2 [ALr2]Switching output [rELE]
Display value
Password [CODE]
Simulation [SINU]
Analogue output [OUt]
Alarm 1 [ALr1]
Limit value 1 [SEt1]
Switching function [nOd1]
Hysteresis [HYS1]
Dealy time [dEL1]
E
ESC
Value 20 mA [20nA]
Value 4 mA [4nA]
ESC
E
ESC
E
ESC
E
Password entry/Activation [PASS]
Analogue output [Out]
E
ESC

PMP
page 8 PMP K03/0218
9.Adjustment
9.1 Switching outputs [rELE]
In the menu item Alarm 1 [Alr1] and Alarm [Alr2] the following items are
adjustable:
Submenu item [Set1] + [Set2]: limit value
value setting 0…500,0 mmH20
at this value the relay changes its status (active/passive)
factory setting: [200.00]
Submenu item [nOd1] + [nOd2]: switching function
[Hi] or [LO] changeable with
[Hi] = The relay 1 or 2 is active, if the displayed value has been reached.
[LO] = The relay 1 or 2 is inactive, if the displayed value has been reached.
factory setting: [Hi]
Submenu item [HYS1] + [HYS2]: hysteresis
value setting 0…500,0 mmH20
shift-in point is related to the limit value
shift-in point relay 1 = [Set1] – [HYS1]
shift-in point relay 2 = [Set2] – [HYS2]
condition: hysteresis value less than limit value
factory setting: [000.0]
Submenu item [dEL1] + [dEL2]: delay time
value setting 0…999,9 sec
The relay output activates when the limit value is exceeded after this time.
The shift-in is carried out immediately.
factory setting: [000.0]

PMP
PMP K03/0218 page 9
9.2 Analogue output [Out]
Menu item [4nA]: display value at 4 mA
factory setting 0…500,0 mmH20
factory setting: [000.0]
Menu item [20nA]: display value at 20 mA
factory setting 0…500,0 mmH20
factory setting: [500.0]
The 4 mA and 20 mA – value of the analogue output can be related to any
differential pressures.
Condition: [4nA] < [20nA]
Factory setting: 4mA = 000,0; 20 mA = 500,0
9.3 Simulation [SINU]
The main menu Simulation is used to test the switching of the relays and the
analogue output 4-20mA is adjusted manually to the current. During installation,
this simplifies the testing of the connection to the downstream analysing unit in
the control cabinet or master display.
Menu item [Alr1]: simulation Alarm 1
Menu item [Alr2]: simulation Alarm 2
Value setting: [OFF] or [ON] (OFF/ON changeable with )
Press ESC-button to finish.
Basic setting: [OFF]
Menu item [Out]: simulation analogue output
Value setting: [4, 5, 6, 7 …20] mA changeable with )
Press ESC-button to finish.
Basic setting: [4] mA
When leaving the main menu item Simulation [SINU] the menu item
Alarm 1 [ALr1], Alarm 2 [ALr2] and Analogue Output [OUt] are
resetted to the basic setting and the outputs behave according the
display.

PMP
page 10 PMP K03/0218
9.4 Password [CODE]
The adjusted parameters can be protected by a password.
Menu item [PASS]: Password entry/activation
Value setting activation: [YES] and [nO]
Value setting password: [0000…9999]
Value setting: [nO] + [0000]
Password activation
Menu item [PASS] -> -> display: [nO] -> -> display: [YES]
-> -> display is e.g. password: [0000] ->
Password deactivation
Menu item [PASS] -> -> display e.g. password: [0000] ->
Menu item [PASS] -> -> display: [YES] -> -> display: [nO] ->
Attention: If the password is activated, all setting functions are
locked (password query for changing display mode -> set-up mode)!
In case of losing the password, please contact your responsible
KOBOLD office.
10. Commissioning
When used in machines according the guideline 89/392/EEC, the commissioning
is forbidden until the machine fulfils the regulations of the guideline.
Attention! The max. allowable pressure of 750 mbar is not allowed to
be exceeded.

PMP
PMP K03/0218 page 11
11.Maintenance
In case the medium to be measured is not polluted, the unit PMP is maintenance-
free.
12. Technical Information
Measuring range: 0 … 500 mm H2O (50 mbar)
LED-indication: 4 digits, 15 mm high
2 relay outputs: max. 230 VAC, 0.5 A
Output: 4-20 mA (load max. 500 Ω)
Power supply: 24, 110, 230 VAC 50/60 Hz or 24 VDC
Max. power consumption: 4 VA
Max. pressure: 750 mbar, one-sided or two-sided
Ambient temperature: -10 to +60 °C
Housing: polycarbonate
Protection: IP65
Max. cable cross section: 2.5 mm²
2 hose connectors: for hose 6 x 8 mm
13. Dimensions
122
120
23
122
23 27 25
55

PMP
page 12 PMP K03/0218
14. EU Declaration of Conformance