KNF NPK 04 DC User manual

KNF 121571-121574 06/14
Translation of original Operating and Installation Instructions english Keep for future use!
Swing Piston Compressors and Vacuum Pumps
NPK 04 DC Pressure NPK 04 DC Vacuum
NPK 04 DCB Pressure NPK 04 DCB Vacuum
Operating and
Installation
Instructions
Read and observe these Oper-
ating and Installation Instruc-
tions!
Contents Page
1. About this document ................................................................. 2
2. Use ........................................................................................... 3
3. Safety ....................................................................................... 4
4. Technical Data ......................................................................... 6
5. Installation and connection ....................................................... 7
6. Operation .................................................................................. 9
7. Troubleshooting ...................................................................... 10
8. Accessory ............................................................................... 11
9. Returns ................................................................................... 12
10. Health and safety clearance and decontamination form ........ 13
KNF Micro AG
Zelglimatte 1b
CH-6260 Reiden
Switzerland
Phone 0041(0)62 787 88 88
Fax 0041(0)62 787 88 99
E-mail: [email protected]
www.knf-micro.ch

About this document Swing Piston Pumps NPK 04
2 Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14
1. About this document
1.1. Using the Operating and Installation Instruc-
tions
The Operating and Installation Instructions are part of the pump.
Pass on the Operating and Installation Instructions to the next
owner.
Customer-specific project pumps (pump models which begin with
"PJ" or "PM") may differ from the Operating and Installation In-
structions.
For project pumps also observe the agreed upon specifica-
tions.
1.2. Symbols and markings
arning
ARNING
A danger warning is located here.
Possible consequences of a failure to observe the
warning are specified here. The signal word e.g.
Warning indicates the danger level.
Measures for avoiding the danger and its conse-
quences are specified here.
Danger levels
Signal word
Meaning Consequences if not observed
DANGER warns of immedi-
ate danger
Death or serious injuries
and/or serious damage are the
consequence.
ARNING warns of possible
danger
Death or serious injuries
and/or serious damage are
possible.
CAUTION warns of a possibly
dangerous situa-
tion
Minor injuries or damage are
possible.
Tab. 1
Other information and symbols
An activity to be carried out (a step) is specified here.
1. The first step of an activity to be carried out is specified
here. Additional consecutively numbered steps follow.
This symbol refers to important information.
Project pumps

Swing Piston Pumps NPK 04 Use
Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14 3
2. Use
2.1. Proper use
The pumps are designed for pumping air.
Owner's responsibility
Only install and operate the pumps under the operating parameters
and conditions described in Chapter 4 Technical data.
Only complete pumps may be taken into service.
Make sure that the installation location is dry and the pump is
protected against rain splash hose and drip water.
When using a medium other than air: Before using a medium
check whether the medium can be transferred danger-free in the
specific application case.
Before using a medium check the compatibility of the materials of
the pump head swing piston and piston seal with the medium.
2.2. Improper use
ARNING
Hazard of explosion when the surrounding atmos-
phere is explosive
The pumps may not be operated in an explosive
atmosphere.
ARNING
Hazard of explosion from combustible and poten
tially
explosive media
The pumps may not be used to pump combus-
tible or potentially explosive media.
The pumps are not suitable for transferring dusts.
The pumps are not suitable for pumping vapors or liquids.
An overpressure must not be applied to the suction side of the
pump.
Operating parameters and
conditions
Requirements for
transferred medium

Safety Swing Piston Pumps NPK 04
4 Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14
3. Safety
Note the safety precautions in sections 5. Installation and
connection, and 6. Operation.
The pumps are built according to the generally recognized rules of
technology and in accordance with the occupational safety and
accident prevention regulations. Nevertheless dangers can result
during its use which lead to injuries to the user or others or to
damage to the pump or other property.
Only use the pumps in proper technical condition and in accord-
ance with its intended use in a safety and danger-conscious man-
ner while observing the Operating and Installation Instructions.
Make sure that only trained and instructed personnel or specially
trained personnel work on the pump. This especially applies to
assembly connection and servicing work.
Make sure that the personnel has read and understood the Operat-
ing and Installation Instructions and in particular the "Safety"
chapter.
Observe the accident prevention and safety regulations when
performing any work on the pump and during operation.
When transferring dangerous media observe the safety regula-
tions when handling these media.
Store all replacement parts in a protected manner and dispose of
them properly in accordance with the applicable environmental
protection regulations. Observe the respective national and inter-
national regulations. This especially applies to parts contaminated
with toxic substances.
For the purposes of the Machinery Directive 2006/42/EC pumps
are “partly completed machinery ” and are therefore to be regarded
as not ready for use. Partly completed machinery may not be
commissioned until such time as it has been determined that the
machine in which the partly completed machinery is to be
assembled is in conformity with the provisions of the Machinery
Directive 2006/42/EC. The following essential requirements of
Annex I of Directive 2006/42/EC (general principles) are applied
and observed:
− General Principles No. 1
− No. 1.1.2. / 1.1.3. / 1.3.1. / 1.3.3. / 1.3.4. / 1.4.1. / 1.5.8. /
1.5.9. / 1.7.4. / 1.7.4.1. / 1.7.4.3.
As these partly completed machinery are OEM-models the power
supplies and the equipment for disconnecting and switching-off the
partly completed machinery respectively have to be considered
when mounting as well as over-current and overload protective
gear.
In addition a protection against mechanical parts in motion and hot
parts if existing has to be provided when mounting.
The pumps conform to the Directive 2011/65/EU (RoHS2).
Personnel
Working in a safety-
conscious manner
Handling dangerous media
Environmental protection
EC Directives / Standards

Swing Piston Pumps NPK 04 Safety
Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14 5
The pumps conform to the EC Directive 2004/108/EC concerning
Electromagnetic Compatibility.
The following harmonized standards have been used:
NPK 04 DC NPK 04 DCB
DIN EN 55014-1/2 DIN EN 55014-1
DIN EN 61000-6-2
Tab. 2
Only have repairs to the pump carried out by the KNF Customer
Service responsible.
Customer service and
repairs

Technical Data Swing Piston Pumps NPK 04
6 Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14
4. Technical Data
Pump materials
Assembly Material
Head plate; cylinder PPS
Valve plate FPM
Piston seal PTFE
O-ring EPDM
Retainer plate Aluminium
Tab. 3
Pneumatic values
NPK 04 DC Vacuum
NPK 04 DCB Vacuum
Parameter Value
Max. permissible operating pressure [bar g] -
Ultimate vacuum [mbar abs.] 300
Delivery rate at atm. pressure [l/min]* 3.3
Tab. 4 *Liters in standard state (1,013 mbar)
NPK 04 DC Pressure
NPK 04 DCB Pressure
Parameter Value
Max. permissible operating pressure [bar g] 1.0
Ultimate vacuum [mbar abs.] -
Delivery rate at atm. pressure [l/min]* 3.3
Tab. 5 *Liters in standard state (1,013 mbar)
Electrical data
Parameter Value
Electrical data See type plate
Tab. 6
Other parameters
Parameter Values
Permissible
ambient temperature
+ 5 °C bis + 40 °C
Permissible media temperature + 5 °C to + 40 °C
Gas-tightness The gas-tightness of the pump
is dependent on the medium
used.*
Tab. 7
* I you have questions about this, please contact your KNF advi-
sor.

Swing Piston Pumps NPK 04 Installation and connection
Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14 7
5. Installation and connection
Only install and operate the pump under the operating parameters
and conditions described in Chapter 4 Technical data.
Observe the safety precautions (see Chapter 3).
5.1. Installation
Before installation store the pump at the installation location to
bring it up to room temperature.
See the data sheet for the mounting dimensions.
Make sure that the installation location is dry and the pump is
protected against rain splash hose and drip water.
Install the pump at the highest point in the system to prevent
condensate from collecting in the pump head.
Protect the pump from dust.
Protect the pump from vibrations and jolts.
5.2. Electrical connection
DANGER
Extreme danger from electrical shock
Only have the pump connected by an authorized
specialist.
Only have the pump connected when the power
supply is disconnected.
In the electrical installation arrangements (complying with EN
60335-1) must be made for disconnecting the pump motor
from the electrical supply.
Connecting pump
1. Compare the supply data with the data on the motor-plate. For
operating current see type plate.
The voltage must not vary by more than + 10% and -
10% from
that shown on the type-plate.
2. Connect the plus and minus pole.
With DC motors note the proper polarity:
red motor cable: +
black motor cable: -
EMC-compatible Installation (brushless DC motor)
In order to remove the electrical interference according to EN
55014-1:1993 + A1:1997 all pumps with brushless DC motor (DC
B) must be equipped with an additional electronic circuit. This
electronic circuit has to be installed as close to the motor as possi-
ble.
The additional circuitry is not necessary if a voltage supply has a
suppression of > 20 dB at 150 kHz and 0 dB at 1 MHz.
Mounting dimensions
Installation location

Installation and connection Swing Piston Pumps NPK 04
8 Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14
The supplemental circuit must be structured according to the
following electrical diagram and the components defined therein in
order to achieve the required level of suppression
C1: Capacitor 1 µF
C2: Capacitor 1000 µF
L1: Choke coil 6 µH
Fig. 1: Electrical diagram o the supplemental circuit
5.3. Pneumatic connection
Only connect components to the pump which are designed for
the pneumatic data of the pump (see Chapter4 Technical da-
ta).
If the pump is used as a vacuum pump safely discharge the
pump exhaust.
Connecting pump
A marking on the pump head shows the direction of flow.
1. Remove the protective plugs from the hose connectors.
2. The accessory silencer/filter (where applicable) is put onto the
hose connector.
3. Connect the suction line and pressure line (tube ID 4 mm).
4. Lay the suction and pressure line at a downward angle to
prevent condensate from running into the pump.
Connected
components
Pump exhaust

Swing Piston Pumps NPK 04 Operation
Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14 9
6. Operation
Only operate the pumps under the operating parameters and
conditions described in Chapter 4 Technical data.
Make sure the pumps are used properly (see section 2.1).
Make sure the pumps are not used improperly (see section 2.2).
Observe the safety precautions (see Chapter 3).
ARNING
Hazard of the pump head bursting due to excessive
pressure increase
Do not exceed max. permissible operating
pressure (see Chapter 4 Technical data).
Only throttle or regulate the air quantity (the gas
quantity) in the suction line to prevent the maxi-
mum permissible operating pressure from being
exceeded.
If the air quantity (the gas quantity) in the pres-
sure line is throttled or regulated make sure that
the maximum permissible operating pressure is
not exceeded.
Watch pressure during operation.
If the pressure reaches the maximum permissi-
ble operating pressure of the pump shut down
pump and eliminate faults (see section 7).
Excessive pressure (with all of the related hazards) can be
prevented by placing a bypass line with a pressure-relief valve
between the pressure and suctions sides of the pump. For
further information contact our technical adviser (see front
page for telephone number).
With the pump at a standstill open pressure and suction lines
to normal atmospheric pressure.
Change the silencer/filter (accessory) if it is dirty.
The pump may not start up against pressure or vacuum during
switch-
on. This also applies in operation following a brief power
failure.
Make sure that normal atmospheric pressure is present in the
lines during switch-on.
Pump standstill
Silencer/filter
Switching pump on

Troubleshooting Swing Piston Pumps NPK 04
10 Translation of original Operating and Installation Instructions english KNF 121571-121574 06/14
7. Troubleshooting
DANGER
Extreme danger from electrical shock!
Disconnect the pump power supply before working
on the pump.
Make sure the pump is deenergized and secure.
Check the pump (see Tab. 8 and 9).
Pump does not transfer
Cause Fault remedy
Connections or lines blocked. Check connections and lines.
Remove blockage.
External valve is closed or filter
is clogged.
Check external valves and filters.
Condensate has collected in
pump head.
Install pump at highest point in system.
Piston seal or valve plates are
worn.
Replace pump.
Tab. 8
Flow rate, pressure or vacuum too low
The pump does not achieve the output specified in the Technical data or the data sheet.
Cause Fault remedy
Condensate has collected in
pump head.
Install pump at highest point in system.
There is gauge pressure on
pressure side and at the same
time vacuum or a pressure
above atmospheric pressure on
suction side.
Change the pressure conditions.
Pneumatic lines or connection
parts have an insufficient cross
section.
Disconnect pump from system to determine output values.
Eliminate throttling (e.g. valve) if necessary.
Use lines or connection parts with larger cross section if
necessary.
Leaks occur on connections
lines or pump head.
Eliminate leaks.
Connections or lines completely
or partially jammed.
Check connections and lines.
Remove the jamming parts and particles.
Head parts are soiled. Clean head components.
Piston seal or valve plates are
worn.
Replace pump.
Tab. 9
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