Parker N2-45P, N2-20P, N2-55P, N2-65P, N2-60P User Manual

Nitrogen Gas Generator

NITROSource N2-20P - N2-80P

Original Language

User Guide

aerospace
climate control
electromechanical

filtration

fluid & gas handling
hydraulics
pneumatics
process control
sealing & shielding

EN

CONTENTS - EN

1 Safety Information ..................................................................................................................................................................................3-EN

1.1 Markings and Symbols ..................................................................................................................................................................4-EN

1.2 Personnel Definitions.....................................................................................................................................................................4-EN

1.2.1 Generator Model Number Identification .................................................................................................................................5-EN

2 Description ..............................................................................................................................................................................................6-EN

2.1 Technical Specification..................................................................................................................................................................6-EN

2.2 Approvals and Compliance ...........................................................................................................................................................7-EN

2.2.1 Approvals ...............................................................................................................................................................................7-EN

2.2.2 Compliance ............................................................................................................................................................................7-EN

2.3 Weights and Dimensions ...............................................................................................................................................................8-EN

2.4 Materials of Construction ..............................................................................................................................................................8-EN

2.5 Receiving and Inspecting the Equipment ....................................................................................................................................9-EN

2.5.1 Storage...................................................................................................................................................................................9-EN

2.5.2 Unpacking ..............................................................................................................................................................................9-EN

2.6 Overview of the equipment..........................................................................................................................................................10-EN

3 Installation and Commissioning..........................................................................................................................................................11-EN

3.1 Recommended System Component Layout ..............................................................................................................................11-EN

3.1.1 Compressed air pre-treatment .............................................................................................................................................11-EN

3.2 Locating the Equipment...............................................................................................................................................................12-EN

3.2.1 Environment .........................................................................................................................................................................12-EN

3.2.2 Space Requirements............................................................................................................................................................12-EN

3.2.3 Air Inlet Quality.....................................................................................................................................................................12-EN

3.3 Mechanical Installation ................................................................................................................................................................13-EN

3.3.1 General Requirements .........................................................................................................................................................13-EN

3.3.2 Securing the Generator........................................................................................................................................................14-EN

3.3.3 Making the Connections.......................................................................................................................................................14-EN

3.4 Electrical Installation....................................................................................................................................................................15-EN

3.5 General Requirements .................................................................................................................................................................15-EN

3.6 Customer Connections ................................................................................................................................................................15-EN

3.6.1 Generator Mains Voltage Supply .........................................................................................................................................15-EN

3.6.2 Dryer Supply.........................................................................................................................................................................16-EN

3.6.3 Purge Economy....................................................................................................................................................................16-EN

3.6.4 Alarm Contacts.....................................................................................................................................................................16-EN

3.6.5 Remote Switching ................................................................................................................................................................16-EN

3.6.6 4–20mA Analogue Output....................................................................................................................................................17-EN

3.6.7 MODBUS..............................................................................................................................................................................17-EN

4 Operating the Generator ......................................................................................................................................................................18-EN

4.1 Overview of the Controls .............................................................................................................................................................18-EN

4.2 Starting the generator ..................................................................................................................................................................18-EN

4.3 Stopping the generator ................................................................................................................................................................19-EN

4.4 Menu Interface ..............................................................................................................................................................................19-EN

4.4.1 Hour Meters..........................................................................................................................................................................20-EN

4.4.2 Fault Log ..............................................................................................................................................................................20-EN

4.4.3 Customer Settings................................................................................................................................................................20-EN

4.5 Oxygen Content............................................................................................................................................................................22-EN

4.6 Economy Mode .............................................................................................................................................................................22-EN

4.7 Energy Saving Technology - EST ...............................................................................................................................................22-EN

4.8 Oxygen Sensor Calibrationn .......................................................................................................................................................23-EN

5 Preventative Maintenance....................................................................................................................................................................24-EN

5.1 Cleaning ........................................................................................................................................................................................24-EN

5.2 Maintenance Schedule........................................................................................................

.........................................................24-EN

5.3 Preventative Maintenance Kits....................................................................................................................................................25-EN

5.3.1 High Purity Generators (PPM)..............................................................................................................................................25-EN

5.3.2 Low Purity Generators (%)...................................................................................................................................................25-EN

5.3.3 Kit Contents..........................................................................................................................................................................26-EN

6 Troubleshooting....................................................................................................................................................................................27-EN

7 Declaration of Conformity....................................................................................................................................................................28-EN

8 Wiring Schematic..................................................................................................................................................................................29-EN

3 - EN

1 Safety Information

Important: Do not operate this equipment until the safety information and instructions in this user guide have been read and
understood by all personnel concerned.

WARNING - USER RESPONSIBILITY

FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE
DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.

This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide product or system
options for further investigation by users having technical expertise.

The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring
that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of
the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any
other materials provided from Parker or its subsidiaries or authorized distributors.

To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications
provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and
reasonably foreseeable uses of the components or systems.

This equipment is intended to be operated indoors and is designed to produce high purity nitrogen gas from a supply of clean dry compressed air.
Please refer to the technical specification for pressure, temperature, and compressed air requirements.

Do not connect liquids or gases or to the inlet port of this generator.

Use of the equipment in a manner not specified within this user guide may result in an unplanned release of pressure, which may cause serious
personal injury or damage.

Only competent personnel trained, qualified, and approved by Parker domnick hunter should perform installation, commissioning, service and
repair procedures.

When handling, installing or operating this equipment, personnel must employ safe engineering practices and observe all related regulations,
health & safety procedures, and legal requirements for safety.

Ensure that the equipment is depressurised and electrically isolated, prior to carrying out any of the scheduled maintenance instructions specified
within this user guide.

Note: Any interference with the calibration warning labels will invalidate the gas generator’s warranty and may incur costs for the re-calibration of
the gas generator.

Parker domnick hunter can not anticipate every possible circumstance which may represent a potential hazard. The warnings in this manual
cover the most known potential hazards, but by definition can not be all-inclusive. If the user employs an operating procedure, item of equipment
or a method of working which is not specifically recommended by Parker domnick hunter the user must ensure that the equipment will not be
damaged or become hazardous to persons or property.

Most accidents that occur during the operation and maintenance of machinery are the result of failure to observe basic safety rules and
procedures. Accidents can be avoided by recognising that any machinery is potentially hazardous.

Details of your nearest Parker domnick hunter sales office can be found at www.parker.com/dhfns

Retain this manual for future reference.

4 - EN

1.1 Markings and Symbols

The following markings and international symbols are used on the equipment or within this manual:

1.2 Personnel Definitions

Operator - person operating equipment for its intended purpose. No access to the internal compartment of the generator.

Responsible Body - individuals or group responsible for the safe use and maintenance of equipment. Access into the internal compartment of

the generator is restricted to key holders only.

Service Personnel - individuals or group that have been trained, or are qualified and approved, by Parker domnick hunter to perform installation,
commissioning, service and repair procedures.

Caution, Read the User Guide. Wear ear protection

Risk of electric shock. Pressurised components on the system

Highlights actions or procedures which, if not
performed correctly, may lead to personal injury or
death.

Remote control. The generator may start automatically
without warning.

Highlights actions or procedures which, if not
performed correctly, may lead to damage to this
product.

Conformité Européenne

Highlights actions or procedures which, if not
performed correctly, could lead to electric shock.

When disposing of old parts always follow local waste
disposal regulations.

Use a fork lift truck to move the dryer.

If remote fault indication relay is used, the electrical
enclosure will now contain more than one live circuit
and in the event of the mains supply being
disconnected, the fault relay connections will remain
live.

NITROGEN (N2)
NITROX
DO NOT BREATHE
Asphyxiant in high concentrations. No odour. Slightly
lighter than air. Ensure adequate ventilation.
Breathing 100% nitrogen will produce immediate
unconsciousness and death due to lack of oxygen.

NON-FLAMMABLE COMPRESSED GAS

Waste electrical and electronic equipment should not
be disposed of with municipal waste.

MAX PRESSURE

10barg (145psi)

NITROX

NITROGEN (N2)

GAS

NON-FLAMMABLE

DONOT BREATHE

COMPRESSED

USE ONLY WITH
EQUIPMENT
COMPATIBLE

WITH THIS
PRESSURE

Asphyxiant in high
concentrations. No odour
Slightly lighter than air.
Ensure adequate ventilation.
Breathing 100% nitrogen will produce
immediate unconsciousness and death
due to lack of oxygen.

5 - EN

1.2.1 Generator Model Number Identification

The model number can be found on the rating plate as illustrated.

Model No:

N2 8 0 P A L N

Model

20

25

35

45

55

60

65

75

80

Technology

P = Pressure Swing Adsorption

O2 Purity

X = Ultra High Purity (10 ppm)

A = High Purity (50 - 1000ppm)

B = Low Purity (0.5 - 5%)

Flow

L = Low Flow

M = Medium Flow

H = High Flow

Energy Saving Technology (EST)

N = No

Y = Yes

6 - EN

2 Description

The NITROSource PSA range of nitrogen generators operate on the Pressure Swing Adsorption (PSA) principle to produce a continuous stream
of nitrogen gas from clean dry compressed air.

Pairs of dual chamber extruded aluminium columns, filled with Carbon Molecular Sieve (CMS), are joined via an upper and lower manifold to
produce a two bed system. Whilst one bed is online and removing oxygen from the process air the other is regenerated.

Clean, dry particulate free compressed air enters the bottom of the online bed and flows up through the CMS. Oxygen and other trace gases are
preferentially adsorbed by the CMS, allowing nitrogen to pass through. At the end of this adsorption phase the inlet, outlet and exhaust valves
close on both beds. The upper and lower equalisation valves open, allowing the pressure to equalise between the beds. This equalisation phase
is designed to reduce energy consumption and enhance the overall performance of the generator.

Once equalised the bed entering regeneration is depressurised. The oxygen adsorbed during the adsorption phase is vented to atmosphere via
an exhaust valve and silencer. A small proportion of the outlet nitrogen gas is also expanded into this bed to help the desorption of oxygen from
the CMS.

The bed entering the adsorption phase is pressurised using a controlled flow of nitrogen gas from the nitrogen buffer vessel (Back Fill) and a
controlled flow of clean, dry, particulate free compressed air (Front Fill).

The CMS beds alternate between adsorption and regeneration modes to ensure continuous and uninterrupted nitrogen production.

2.1 Technical Specification

Product Selection

NITROSource PSA Performance @ 20 oC (68 oF)Ambient Air Temperature & 7 barg (101.5 psi g) Air inlet pressure

Model 5 ppm 10ppm 50ppm 100ppm 250ppm 500ppm 0.10% 0.40% 0.50% 1% 2% 3% 4% 5%

N2-20P

m3/hr

3.5 4.5 6.7 8.0 9.7 11. 1 12.4 16.7 17.7 21.3 25.3 29.8 30.9 33.7

CFM

2.1 2.6 3.9 4.7 5.7 6.5 7.3 9.8 10.4 12.5 14.9 17.5 18.2 19.8

N2-25P

m3/hr

5.3 6.8 10.1 12.0 14.6 16.7 18.6 25.1 26.6 32.0 38.0 44.7 46.4 50.6

CFM

3.1 4.0 5.9 7.1 8.6 9.8 10.9 14.8 15.7 18.8 22.4 26.3 27.3 29.8

N2-35P

m3/hr

7.0 9.0 13.4 16.0 19.4 22.2 24.8 33.4 35.4 42.6 50.6 59.6 61.8 67.4

CFM

4.1 5.3 7.9 9.4 11. 4 13.1 14.6 19.7 20.8 25.1 29.8 35.1 36.4 39.7

N2-45P

m3/hr

8.8 11. 3 16.8 20.0 24.3 27.8 31.0 41.8 44.3 53.3 63.3 74.5 77.3 84.3

CFM

5.2 6.7 9.9 11. 8 14.3 16.4 18.2 24.6 26.1 31.4 37.3 43.8 45.5 49.6

N2-55P

m3/hr

10.5 13.5 20.1 24.0 29.1 33.3 37.2 50.1 53.1 63.9 75.9 89.4 92.7 101.1

CFM

6.2 7.9 11 .8 14.1 17.1 19.6 21.9 29.5 31.3 37.6 44.7 52.6 54.6 59.5

N2-60P

m3/hr

11. 6 15.0 22.3 26.6 32.3 36.9 41.2 55.5 58.9 70.8 84.1 99.1 102.7 112 .1

CFM

6.8 8.8 13.1 15.7 19.0 21.7 24.2 32.7 34.7 41.7 49.5 58.3 60.4 66.0

N2-65P

m3/hr

13.3 17.1 25.5 30.4 36.9 42.2 47.1 63.5 67.3 80.9 96.1 113.2 117. 4 128.1

CFM

7.8 10.1 15.0 17.9 21.7 24.8 27.7 37.4 39.6 47.6 56.6 66.6 69.1 75.4

N2-75P

m3/hr

14.5 18.6 27.7 33.1 40.2 46.0 51.3 69.1 73.3 88.2 104.7 123.4 127.9 139.5

CFM

8.5 10.9 16.3 19.5 23.7 27.1 30.2 40.7 43.1 51.9 61.6 72.6 75.3 82.1

N2-80P

m3/hr

16.1 20.7 30.8 36.8 44.6 51.1 57.0 76.8 81.4 98.0 116.4 137.1 142.1 155.0

CFM

9.5 12.2 18.1 21.7 26.3 30.1 33.5 45.2 47.9 57.7 68.5 80.7 83.6 91.2

Air : N2

(N2-20 - N2-55)

9.3 7.2 5.1 4.6 4.1 3.7 3.4 2.9 2.8 2.6 2.3 2.2 2.2 2.1

Air : N2

(N2-60 - N2-65)

9.8 7.6 5.3 4.9 4.3 3.9 3.5 3.0 2.9 2.7 2.5 2.3 2.3 2.2

Air : N2

(N2-75 - N2-80)

10.1 7.8 5.5 5.0 4.4 4.0 3.7 3.1 3.0 2.8 2.5 2.4 2.4 2.3

Outlet

Bar g

6.0 6.0 6.0 6.0 5.9 5.9 5.8 5.8 5.7 5.7 5.6 5.5 5.4 5.4

Psi g

87.0 87.0 87.0 87.0 85.6 85.6 84.1 84.1 82.7 82.7 81.2 79.8 78.3 78.3

7 - EN

2.2 Approvals and Compliance

2.2.1 Approvals

Directives

97/23/EC: Pressure Equipment Directive

2004/108/EC: Electromagnetic Compatibility Directive

2006/95/EC: Low Voltage Directive

Safety and Electromagnetic Compatibility Standards

This equipment has been tested and complies with the following European Standards:

EN 61326-1:2013 EMC - Electrical equipment for measurement, control and laboratory use. EMC requirements.
(Equipment tested to: Emissions - Light, Immunity - Heavy)

BS EN 61000-3-2:2006+A2:2009 Electromagnetic compatibility (EMC). Limits for harmonic current emissions (equipment input current = 16 A
per phase)

BS EN 61000-3-3:2013 Electromagnetic compatibility (EMC). Limits. Limitation of voltage changes, voltage fluctuations and flicker in public low­voltage supply systems, for equipment with rated current = 16 A per phase and not subject to conditional connection.

BS EN 61010-1:2010 Safety requirements for electrical equipment for measurement, control, and laboratory use. General requirements

General

Designed generally in accordance with ASME VIII DIVISION 1: EDITION 2010 2011a Addenda

2.2.2 Compliance

This gas generator is compliant with FDA and European Pharmacopeia Regulations for use as a medical gas generator.

Inlet Parameters

Port Connections

Environmental Parameters

Air Quality

ISO 8573-1: 2010 Class 2.2.2

(2.2.1 with high oil vapour content)

Pressure

5 –13 bar g (72.5 - 188.5) psi g

Temperature

5 – 50 oC (41 – 122 oF)

Purity

20.948% (wrt O2)

0.0314% (wrt CO2)

Air Inlet

G1”

N2 Outlet to Buffer

G1”

N2 Inlet from Buffer

G1/2”

N2 Outlet

G1/2”

Ambient Temperature

5 – 50 oC

(41 – 122

o

F)

Humidity

50% @ 40oC (80% @ MAX d 31oC)

IP Rating

IP20 / NEMA 1

Pollution Degree

2

Installation Category

II

Altitude

< 2000 m

(6562 ft)

Noise

<80 dB (A)

Electrical Parameters Packed Weights and Dimensions

Generator Supply

(1)

(1) The generator does not require adjustment when connecting to 115v and 230v

electrical supplies.

100 - 240 +/- 10% Vac 50/60Hz

Generator Power

(2)

(2) The power rating specified is for the generator alone and does not take in to

account any pre-treatment dryer connected to the dryer supply terminals of the
generator.

55 W

Fuse

(3)

(3) (Anti Surge (T), 250v, 5 x 20mm HBC, Breaking Capacity 1500A @ 250v, IEC 60127,

UL R/C Fuse).

3.15 A

Max Dryer Power

(4)

(4) The dryer is fed directly from the generator supply.

100W

Model

Height (H) Width (W) Depth (D) Weight

mm ins mm ins mm ins Kg lbs

N2-20P

725.5 28.6

1994 78.5

1090 42.9 398.4 878.3

N2-25P

1260 49.6 495.4 1092.1

N2-35P

1430 56.3 580.4 1279.6

N2-45P

1600 63.0 686.4 1513.3

N2-55P

825.5 32.5

1770 69.7 782.4 1724.9

N2-60P

1935 76.2 897.4 1978.4

N2-65P

828.5 32.6 2100 82.7 997.4 2198.9

N2-75P

831.5 32.7

2275 89.6 1093.4 2410.5

N2-80P

2445 96.3 1186.4 2615.6

8 - EN

2.3 Weights and Dimensions

2.4 Materials of Construction

Model

Dimension

Weight

H W D (a) (b) (c) (d) (e) (f) (g)

mm in s mm ins mm ins mm ins mm ins mm ins mm ins mm ins mm ins mm ins Kg lbs

N2-20P

1894 74.6 550 21.7 893 35.2 500 19.7 535.5 21.1 350 13.8 853.5 33.6 1007 39.6 1271 50 1739 68.5 299 659.2

N2-25P

1894 74.6 550 21.7 1062 41.8 500 19.7 704.5 27.7 350 13.8 853.5 33.6 1007 39.6 1271 50 1739 68.5 384 846.6

N2-35P

1894 74.6 550 21.7 1231 48.5 500 19.7 873.5 34.4 350 13.8 853.5 33.6 1007 39.6 1271 50 1739 68.5 469 1034.0

N2-45P

1894 74.6 550 21.7 1400 55.1 500 19.7 1042.5 41.0 350 13.8 853.5 33.6 1007 39. 6 1271 50 1739 68.5 553 1219.2

N2-55P

1894 74.6 550 21.7 1569 61.8 500 19.7 1211.5 47.7 350 13.8 853.5 33.6 1007 39. 6 1271 50 1739 68.5 638 1406.5

N2-60P

1894 74.6 550 21.7 1738 68.4 500 19.7 1380.5 54.4 350 13.8 853.5 33.6 1007 39. 6 1271 50 1739 68.5 722 1591.7

N2-65P

1894 74.6 550 21.7 1907 75.1 500 19.7 1549.5 61.0 350 13.8 853.5 33.6 1007 39. 6 1271 50 1739 68.5 807 1779.1

N2-75P

1894 74.6 550 21.7 2076 81.7 500 19.7 1718.5 67.7 350 13.8 853.5 33.6 1007 39. 6 1271 50 1739 68.5 892 1966.5

N2-80P

1894 74.6 550 21.7 2245 88.4 500 19.7 1887.5 74.3 350 13.8 853.5 33.6 1007 39. 6 1271 50 1739 68.5 976 2151.7

Silencer Baffle and End Cap

Aluminium

Columns, Manifolds and Exhaust Manifolds

Aluminium Extrusion EN AW-6063 T6

Manifold and Purge End Plates

Cast Machined EN AW-6082 T6

Inlet, Outlet and Equalisation Valve Plates

Machined EN AC-44100-F

Inlet and Exhaust Cylinders

Aluminium Alloy

Generator Feet

8MM Steel Plate

Dust Filter

Aluminium Housing

Fittings

Nickel Plated Brass and Nickle Plated Mild Steel

Pressure Gauges

Steel casing and dial, brass connector and movement

Adsorbant

Carbon Molecular Sieve (CMS)

Seal Materials

Nitrile, Viton, EPDM, PTFE (tape)

Paint

Epoxy coated

(b)

(a)

(d)

(c)

(e)

(f)

(g)

W

H

D

9 - EN

2.5 Receiving and Inspecting the Equipment

The equipment is supplied in a sturdy wooden crate designed to be moved using a forklift truck or pallet truck. Refer to the technical specification
for packed weights and dimensions. On delivery of the equipment check the crate and its contents for damage and verify that the following items
have been included with the generator.

If there are any signs of damage to the crate, or there are any parts missing please inform the delivery company immediately and contact your
local Parker domnick hunter office.

2.5.1 Storage

The equipment should be stored, within the packing crate, in a clean dry environment. If the crate is stored in an area where the environmental
conditions fall outside of those specified in the technical specification, it should be moved to its final location (installation site) and left to stabilise
prior to unpacking. Failure to do this could cause condensing humidity and potential failure of the equipment.

2.5.2 Unpacking

Remove the lid and all four sides of the packing crate. Unscrew the exhaust silencer from the generator and lift the generator on to it’s feet using
suitable slings and an overhead crane as illustrated.

Remove the four wooden blocks from behind the shroud.

Once positioned in its final location refit the silencer to the generator.

Ref Description Qty

1 Pilot operated regulator 1

2 Pilot regulator 1

3 Dust filter 1

4 1/2” ball valve (N2 inlet from buffer vessel) 1

5 1” BSPP ball valve (N2 Outlet to buffer vessel) 1

6 1/2” 3-way ball valve (N2 Outlet) 1

7 1” BSPP ball valve (Compressed Air Inlet) 1

10 - EN

2.6 Overview of the equipment

Key:

Note. The pressure gauges are for indication only. Items #1, #4, #5, and #6 are available on both sides of the generator.

Ref Description Ref Description

1 Outlet Port: To Buffer Vessel 7 User control interface with 20 x 2 line menu display

2 Cable glands 8 Exhaust silencer

3 Pressure gauges 9 Oxygen Dependant Switching (EST) Sensor (if fitted)

4 Inlet Port: From Buffer Vessel 10 Oxygen Sensor

5 Outlet Port: Nitrogen Outlet 11 4 - 20mA Cable gland

6 Inlet Port: Compressed Air Inlet with Pressure Regulator (supplied) 12 Calibration port

11 - E N

3 Installation and Commissioning

3.1 Recommended System Component Layout

3.1.1 Compressed air pre-treatment

To achieve the maximum performance, reliability and service life, Parker domnick hunter strongly recommend the use of a Parker domnick hunter
desiccant dryer based pre-treatment package.

A Parker domnick hunter Desiccant dryer pretreatment package provides a physical barrier to oil, ensures maximum generator efficiency by
minimising Carbon Molecular Sieve (CMS) moisture loading and is in full compliance with the Parker 5 year warranty program.

Some applications such as pharmaceutical and food require nitrogen moisture contents that are only achievable with a desiccant dryer based
pre-treatment package.

PPM generators must be operated with a Parker domnick hunter desiccant dryer based pre-treatment package.

This generator will operate with a refrigerant type dryer providing it is correctly maintained and achieves a constant pdp of +3°C, however this is
the least preferred option as this type of dryer provides a inimal barrier to oil carry-over and should be strongly discouraged. It must be used in
conjunction with an activated carbon Oil Vapour Removal (OVR) filter.

In certain circumstances it may also be necessary to install an OVR filter after the desiccant dryer pre-treatment package.

Note. Any contamination of the CMS due to oil or excess moisture loading will invalidate the warranty.

If in any doubt, consult your local Parker specialist for further information.

Installation should be performed by Service Personnel only.

Ref Description Ref Description

1

Compressor

(1)

(1) If using an oil lubricated compressor we recommend the use of oil vapour removal filtration.

6 Dust filter

2 Wet air receiver complete with pressure relief valve and gauge 7 Buffer vessel

3 Water separator 8 Dust filter (supplied with the generator)

4 General purpose and dust filtration 9 Nitrogen generator

5 Compressed air dryer 10 Nitrogen Outlet to application

The system must be protected with a suitably rated thermal pressure relief valve upstream of the generator.

12 - EN

3.2 Locating the Equipment

3.2.1 Environment

The equipment should be located indoors in an environment that protects it from direct sunlight, moisture, and dust. Changes in temperature,
humidity, and airborne pollution will affect the environment in which the equipment is operating and may impair the safety and operation. It is the
customers' responsibility to ensure that the environmental conditions specified for the equipment are maintained.

3.2.2 Space Requirements

The equipment should be mounted on a flat surface capable as a minimum of supporting its own weight plus the weight of all ancillary parts. The
minimum footprint requirements are specified below, however there must be adequate space around the equipment to allow airflow and access
for maintenance purposes and lifting equipment. A minimum spacing of approximately 500mm (20 ins) is recommended around all sides of the
generator and 1000mm (39.4 ins) above it to allow service operations.

Do Not position the equipment so that it is difficult to operate or disconnect from the electrical supply.

3.2.3 Air Inlet Quality

ISO 8573-1:2010 is an international standard that specifies the purity classes of compressed air with respect to solid particulates, water and oil.
The air inlet quality specified for this generator is ISO 8573-1:2010 class 2.2.2 and equates to the following:

Class 2 (Solid Particulate)

In each cubic metre of compressed air, not more than:

• 400,000 particles in the 0.1–0.5 micron size range are allowed.

• 6,000 particles in the 0.5–1 micron size range are allowed.

• 100 particles in the 1–5 micron size range are allowed.

Class 2 (Water)

A pressure dewpoint of -40

o

C/-40oF or better is required and no liquid is allowed.

Class 2 (Oil)

In each cubic metre of compressed air, not more than 0.1 mg of oil is allowed.

Note. This is the combined level for aerosol, liquid and vapour.

ISO 8573-1:2010 Class 2.2.2 can be achieved with the following combination of Parker purification products:

• General Purpose filter Grade AO

• High efficiency filter grade AA

• ACS / OVR Adsorption Filter

• General Purpose Dust removal Filter Grade AR

• PNEUDRI -40

o

C/-40oF PDP dryer

Due to the nature of operation there is a possibility of oxygen enrichment surrounding the generator. Ensure that the area is adequately
ventilated. Where the risk of oxygen enrichment is high, such as a confined space or poorly ventilated room, the use of oxygen monitoring
equipment is advisable.

13 - EN

3.3 Mechanical Installation

3.3.1 General Requirements

Please familiarise yourself with the local regulations before considering any pipe-work installation as standards and specifications for pipe-work
systems can vary greatly from country to country. The information below is a guide based on installations performed within Europe.

Nitrogen, besides being inert, is also widely used because it is considered a clean dry gas.

Many of the processes that use nitrogen are of a critical nature and apart from contamination with oxygen, the removal of dirt particulate, oil and
water vapour from the gas stream is also essential. Therefore the pipe-work system and material that will transfer the nitrogen to it’s destination
should not add any unwanted contamination into the gas stream.

All components used within the system must be rated to at least the maximum operating pressure of the equipment. Buffer and nitrogen storage
vessels should be clean and free from oil and grease, and fitted with a suitable pressure gauge and pressure relief valve.

If there is any possibility of particulate contamination then this can be removed by installing a suitable Oil-X Evolution filter as near to the point of
use as possible. Ensure that each filter condensate drain is suitably piped away and any effluent is disposed of in accordance with local
regulations.

The compressed air feed pipe-work to the pre-treatment package should be suitable for compressed air duty and of a size and construction to
handle the maximum flow and pressures involved. Materials such as medium weight galvanized, Transair or similar are acceptable. As much
cutting fluid, oil and grease as possible should be removed from the pipe-work and fittings prior to connecting.

From the pre-treatment onwards and for the nitrogen gas, the pipe-work needs to be clean and oil-free.

If using a modular pipe-work system such as Transair, oil and grease should be removed using a suitable cleaner (if necessary) from the surfaces
that come into contact such as the pipe-work including fittings.

The most commonly used material for installing nitrogen pipe-work is table “X” de-greased copper. This should be silver soldered with a nitrogen
purge where ever possible and for threaded interfaces general heavy duty (GHD) fittings should be used. For small bore pipe-work, it is
sometimes acceptable to use compression type fittings or crimp type pipe-work systems. For food and pharmaceutical installations, welded or
threaded stainless steel is often specified, especially where it enters the production environment. For these market sectors the inclusion of sterile
filtration such as the “High Flow BIO-X” is advisable to ensure even the remote possibility of contamination from microorganisms is prevented.

In general flexible hoses should be avoided. They are almost certainly not suitable for high purity <100 ppm applications.

However, if they are to be used, ensure they are suitable for use with an inert gas. Certain materials such as nylon tubing can actually permeate
oxygen from outside to inside and affect the purity of the nitrogen gas. PTFE flexible tubing is preferred.

When routing the pipes ensure that they are adequately supported to prevent damage and leaks in the system.

The diameter of the pipes must be sufficient to allow unrestricted inlet air supply to the equipment and outlet nitrogen supply to the application.
The following table gives guidance on the maximum recommended flow rates for smooth bore pipe-work.

The system must be protected with a suitably rated thermal pressure relief valve upstream of the generator.

Pressure

4 bar g 58 psi 6 bar g 87 psi 8 bar g 116 psi 10 bar g 145 psi

Recommended Flowrate

m3/hour

cfm

m3/hour

cfm

m3/hour

cfm

m3/hour

cfm

Pipe size I/D (or Equivalent)

16mm

28.8 17.0 43.2 25.4 64.8 38.1 75.6 44.5

20mm

36.6 21.5 57.6 33.9 82.8 48.7 101.0 59.4

25mm

68.4 40.3 111 .0 65.3 155.0 91.2 194.0 114 .2

32mm

152.0 89.5 227.0 133.6 295.0 173.6 385.0 226.6

40mm

306.0 180.1 432.0 254.3 576.0 339.0 702.0 413.2

50mm

440.0 259.0 698.0 410.8 940.0 553.3 1213.0 713.9

63mm

824.0 485.0 1318.0 775.7 1771.0 1042.4 2326.0 1369.0

75mm

1296.0 762.8 2034.0 1197.2 2847.0 1675.7 3510.0 2065.9

90mm

2052.0 1207.8 3186.0 1875.2 4576.0 2693.3 5490.0 3231.3

110mm

3600.0 2118.9 5652.0 3326.6 7956.0 4682.7 9756.0 5742.2

14 - EN

3.3.2 Securing the Generator

3.3.3 Making the Connections

Refer to the “Recommended System Component Layout” on page 11 for
the desired system configuration.

Port connections are provided on both sides of the generator. Connect the
ball valves supplied to the ports, using PTFE tape on the threads to provide
a leak free seal.

Assemble the inlet pressure regulator as illustrated below taking note of the
flow directions marked on the underside of the pilot operated regulator.

Use PTFE tape on the threads to provide a leak free seal.

Note. Fittings are not supplied.

When installing the 3-way ball valve to the Nitrogen Outlet port ensure that
it is positioned in a vertical position and so that there is unrestricted access
to the centre port for the connection of a flow meter.

Install the pipe-work ready for connection to the buffer vessel and
compressed air supply. We recommend that additional ball valves are
connected to the buffer vessel ports to allow it to be isolated during
maintenance activities.

Setting the inlet Pressure Regulator

The inlet pressure must be set prior to running the generator.

1 Adjust the internal Inlet / Outlet pressure ball valve to the Inlet

Pressure position (pointing down).

2 Power up the generator and navigate to menu 3.5. The inlet

compressed air pressure will be displayed.

3 Check the rating plate for the required set pressure then adjust the regulator until the required set pressure is displayed on menu 3.5.

4 Tighten the lock nut on the regulator adjustment handle to prevent inadvertent adjustment.

5 Reposition the internal Inlet / Outlet pressure ball valve to the Outlet Pressure position (pointing upwards).

The generator MUST be fixed in position using suitable
M20x40mm Rawl bolts (or equivalent). Mounting holes are
provided in the feet of the generator.

1

Mounting holes

2

Inlet Port: Compressed Air Inlet (1” BSPP ball valve)

3

Inlet Pressure Regulator

4

Outlet Port: Nitrogen Outlet (1/2” 3-way ball valve)

5

Inlet Port: From Buffer Vessel (1/2” ball valve)

6

Outlet Port: To Buffer Vessel (1” BSPP ball valve)

7

Internal inlet / outlet pressure ball valve

1” BSPP

1/4” BSPP

15 - EN

3.4 Electrical Installation

3.5 General Requirements

In order to maintain the IP rating of the generator, all cables entering the
electrical enclosure must do so through the dedicated cable glands located on
the side of the generator. All cables used must be sized such that the voltage
drop between the supply and the load does not exceed 5% of the nominal
voltage under normal conditions. All cables external to the generator must be
adequately supported and protected against physical damage.

When connecting to terminal blocks always ensure that the conductors are fully
inserted into the terminal, and the terminal screws are firmly secured. We
recommend that individual conductors are cable tied together so that, in the
event of on conductor coming loose, they cannot touch other parts.

3.6 Customer Connections

Please refer to the wiring schematic at the rear of this guide for wiring details.

3.6.1 Generator Mains Voltage Supply

The generator requires a 100 - 240Vac single phase electrical supply in
accordance with local wiring regulations. Refer to the technical specification for
voltage and frequency tolerances.

Connection to the electrical supply should be made through a switch or circuit breaker rated at 250VAC, 6A with a minimum short circuit rating of
10KA. All of the current carrying conductors should be disconnected by this device. This protection should be selected in accordance with local
and national code regulations.

The device chosen should be clearly and indelibly marked as the disconnecting device for the equipment and be located in close proximity to the
equipment and within easy reach for the operator.

Over current protection must be fitted as part of the building installation. This protection should be selected in accordance with local and national
code regulations with a minimum short circuit rating of 10KA.

The protective earth conductor should be longer than the associated phase conductors so that in the event of the cable slipping in the cable
gland, the earth will be the last to take the strain.

Note. If using flexible cable please ensure that it conforms to the requirements of IEC60227 or IEC60245.

A fully qualified electrical engineer must undertake all field wiring and electrical work in accordance with local regulations.

Ter mi nal s Description

Minimum
Conductor
Size

Cable size

TB1 - L1

Fuse terminal for the phase conductor

1mm

2

8 - 12mm

TB1 - N

Neutral conductor

TB1 -

Earth conductor

1 Cable Entry Glands

2 Generator Supply Terminals

3 Dryer Supply Terminals

4 Purge Economy Terminals (JP17)

5 Alarm Contact Terminals

6 Remote Switching Terminals

6mm

0.2ins

16 - EN

3.6.2 Dryer Supply

If a Parker domnick hunter pre-treatment air dryer is used, it should be connected to the generator at the dedicated DIN rail terminals. Refer the
documentation provided with your dryer for additional information on installation requirements.

3.6.3 Purge Economy

If the pre-treatment dryer is fitted with a purge economy feature, it may be controlled using the volt free relay contacts on JP17. The relay is
energised only when the generator enters standby mode. Refer to the documentation provided with your dryer for details on purge economy.

3.6.4 Alarm Contacts

Each generator is fitted with a set of volt free relay contacts designed for remote alarm indication and are rated 1A max @ 250Vac (1A @ 30Vdc).
Under normal operation the relay will be energised and the alarm circuit will be open. When a fault occurs, e.g. power failure, the relay will de­energise causing the alarm circuit to be complete.

3.6.5 Remote Switching

The generator may be controlled remotely by connecting a remote start / stop circuit to digital input #4 on the control board. When the circuit is
open the generator should remain in standby mode, closing the circuit should initiate a start command.

To enable the remote switching function refer to 4.4.3 of this guide. Once the remote switching function has been enabled the local start control
will no longer function.

Ter mi nal s Description Cable size

TB1 - L1

Live conductor

3 - 7mm

TB1 - N

Neutral conductor

TB1 -

Earth conductor

Do Not connect mains electricity to the Purge Economy Terminals.

Ter mi nal s Description Cable size

JP17 - 2

Common

3 - 7mm

JP17 - 3

Normally Open

Ter mi nal s Description Cable size

JP18 - 1

Normally closed

3 - 7mm

JP18 - 2

Common

JP18 - 3

Normally open

If remote fault indication relay is used, the electrical enclosure will now contain more than one live circuit and in the event
of the mains supply being disconnected, the fault relay connections will remain live.

Ter mi nal s Description Cable size

JP19 - 7

Common

3 - 7mm

JP19 - 8

Normally Open

When the remote switching function is enabled the generator can start without warning.

17 - EN

3.6.6 4–20mA Analogue Output

The oxygen content detected by the generators internal analyser may be re-transmitted to external peripherals using the 4-20mA linear analogue
output. The output is a linear current source, with 10 bit resolution, which increases from 4mA (Zero Oxygen) to 20mA (Full Scale Deflection). The
FSD of the internal analyser is factory set to a default value of twice the generators specified purity. For % purity generators the maximum FSD is
set to 6%. The oxygen purity setting of the generator is marked on the rating plate. The table below shows the correlation between the purity
settings of the generator and the output current.

It is recommended that the cable used for the 4-20mA Analogue Output is screened twisted pair. Ferrites should be added to the cable, using 1
turn, either side of the shroud cable gland. It is recommended that the cable used does not exceed 30m in length. Suitable ferrites are available
from Wurth Electronics (P/N. 74271633S).

3.6.7 MODBUS

The generator’s controller is capable of supporting direct Modbus communication via its integral RS485 connection. This industry standard
connection allows multiple generators to communicate with a remote Modbus master on a network up to 30m in length. The generator can be
programmed with its own unique address, to allow multiple generators to be connected to an existing network.

Ter mi nal s Description Cable size

Analyser - #6

Positive

3 - 7mm

Analyser - #7

Negative

Generator
Purity

Full Scale Deflection

Resolution

4mA - 20mA

5ppm 0 - 10ppm 1ppm = 1.6mA

10ppm 0 - 20ppm 1ppm = 0.8mA

50ppm 0 - 100ppm 1ppm = 0.16mA

100ppm 0 - 200ppm 1ppm = 0.08mA

250ppm 0 - 500ppm 1ppm = 0.032mA

500ppm 0 - 1000ppm 1ppm = 0.016mA

0.1% 0 - 0.2% 0.01% = 0.8mA

0.4% 0 - 0.8% 0.01% = 0.2mA

0.5% 0 - 1% 0.01% = 0.16mA

1% 0 - 2% 0.01% = 0.08mA

2% 0 - 4% 0.01% = 0.04mA

3% 0 - 6% 0.01% = 0.026mA

4% 0 - 6% 0.01% = 0.026mA

5% 0 - 6% 0.01% = 0.026mA

Ter mi nal s Description Cable size

RS485 MODBUS - A

For MODBUS communication setup details refer to dh
publication 176500120

3 - 7mm

RS485 MODBUS - A

18 - EN

4 Operating the Generator

4.1 Overview of the Controls

4.2 Starting the generator

1 Inspect all of the system connection points and verify that they are secure.

2 With both the inlet and outlet ball valves of the buffer vessel closed, open the ball valve on the air inlet port to allow the compressed air into

the generator.

3 Switch the electrical power on to the generator and wait whilst it runs through the controller initialisation routine.

4 If the generator was in standby mode when the electrical power was removed it will default to standby

mode on completion of the initialisation routine.

5 Press to initiate the start up routine.

If the start clean up option is enabled the generator will run through the Rapid Cycle before opening the
buffer valve and the N2 outlet valve. The clean up cycle, which takes approximately 160 seconds, is
designed to clean the CMS bed of impurities, bring the generator up to production purity more rapidly, and
prevent poor quality gas flowing into the buffer.

If the generator was running when the electrical power was removed (e.g. power failure) it will
automatically run through a start up cycle (if enabled) and then commence normal operation. Wait until
this cycle is complete and the menu displays “Running”. This may take several minutes for ppm
generators.

6 Partially open the ball valve on the inlet to the buffer vessel to allow it to pressurise slowly. When the pressure gauge on the buffer vessel

reads within 0.5 barg (7psig) of the inlet pressure, check for leaks in the buffer vessel inlet piping and then fully open the ball valve.

7 Open the ball valve on the outlet of the buffer vessel and check for leaks in the piping between the vessel and the generator.

8 Open the ball valve on the Nitrogen outlet.

Note: If the purity of the gas is not within specification it will be vented to atmosphere through a vent solenoid within the generator and not

delivered to the application. When the required purity is achieved the gas will be delivered to the application.

O2 = 5.00%
Shutting Down

Standby Standby

O2 = 5.00% O2 = 5.00%
Rapid Cycle Rapid Cycle

1

Star t K ey

2

Stop Key

3

Menu navigation keys

4

Enter key

5

Operating status indicator

Green = Running,
Yellow = Starting up / Shutting down
Red - Standby

6

Economy / EST status indicator

Green = Economy or EST Mode

7

Service / Fault indicator

Yellow = Service due
Red = Fault

8

LCD Display

19 - EN

4.3 Stopping the generator

1 Close the ball valve on the N2 Outlet port.

2 Press to initiate the shutting down sequence.

The generator will complete the current cycle and then exhaust both beds. This may take several minutes
particularly on ppm generators.

3 When the generator is depressurised it will revert to standby mode.

4.4 Menu Interface

All of the operational parameters and data are accessed through the menu driven interface..

The interface will automatically default back to the main operating menu if no key activity has been detected for one minute.

Note: After an additional two minutes of inactivity the display will darken. To brighten the display press .

O2 = 5.00% O2 = 5.00%
Shutting Down Shutting Down

Shutting Down Shutting Down

Standby Standby

O2 = 5.00%

O2 = 5.00%

Shutting Down

Shutting Down

1. Hour meters

1. Hour meters

2. Fault log

2. Fault log

2.1 Fault 10:

2.1 Fault 10:

[---]

[---]

2.1 Fault 1: Active

2.1 Fault 1: Active

C1 at 5234h

C1 at 5234h

3. Customer

3. Customer

settings

settings

3.16 EST enable

3.16 EST enable

= 0

= 0

3.15 Modbus parity

3.15 Modbus parity

= Even

= Even

3.14 Remote control

3.14 Remote control

= 1

= 1

3.13 Machine number

3.13 Machine number

= 1

= 1

3.12 Fault relay

3.12 Fault relay

On Stop =1

On Stop =1

3.11 Economy enable

3.11 Economy enable

= 1

= 1

3.10 Start cycle

3.10 Start cycle

enable = 1

enable = 1

3.9 Oxygen Analogue

3.9 Oxygen Analogue

FSD =6%

FSD =6%

3.8 Oxygen alarm

3.8 Oxygen alarm

delay = 60s

delay = 60s

3.7 Oxygen alarm

3.7 Oxygen alarm

level =15ppm

level =15ppm

3.6 Pressure units

3.6 Pressure units

= Bar

= Bar

3.5 Pressure reading

3.5 Pressure reading

= 9Bar

= 9Bar

3.4 Calibrate EST

3.4 Calibrate EST

sensor

sensor

3.3 Calibrate outlet

3.3 Calibrate outlet

sensor

sensor

3.2 Oxygen Alarm

3.2 Oxygen Alarm

Over-ride =0

Over-ride =0

3.1 Password enable

3.1 Password enable

= 0

= 0

1.4 Hours EST

1.4 Hours EST

4h

4h

1.3 Hours economy

1.3 Hours economy

25h

25h

1.2 Service due at

1.2 Service due at

8000h

8000h

1.1 Hours Run

1.1 Hours Run

5234h

5234h

+

+

20 - EN

4.4.1 Hour Meters

There are four hour meters available for viewing:

4.4.2 Fault Log

The fault log menu allows the user to access the 10 most recent fault messages.

Refer to “Fault Codes” on page 27 for a full listing of fault codes.

4.4.3 Customer Settings

To prevent unauthorised access to the configurable parameters, the customers setting menu has optional password protection. This is disabled
by default and can be enabled in menu 3.1

To gain access in to this menu, when password has been enabled:

Press and hold both the and keys for approximately 5 seconds until the menu changes to the
password prompt as shown.

The flashing cursor will be positioned over the first digit. Using the key change the first digit of the
code and press . The cursor will move to the next digit.

Repeat the process and enter the following password 1 2 1 _ _ . When the password has been entered correctly the Hour Meters menu will be
displayed. Use the key to navigate to page 3 “Customer Settings” menu and press .

The time in hours that the generator has been producing gas.

The time in operating hours that the generator can produce gas before a service is required.

The time in hours that the generator has been operating in Economy mode.

The time in hours that the generator has been operating in EST mode.

Each fault is represented by a fault code and is displayed along with the run hours at which the fault occurred. If a
fault is active the fault code displayed will flash. Any faults that are active when the power is switched off, and are
still active when the power is re-applied, will cause a new entry to be added into the fault log.

When enabled the end user is required to enter a password to gain access to the customer configuration
menu.

0 = Disabled, 1 = Enabled

When enabled the Oxygen alarm is over-ridden.
0 = Over-ride disabled, 1 = Override Enabled [OVR]

Outlet oxygen sensor calibration menu.

Refer to section 4.8 for details on calibration.

EST oxygen sensor calibration menu.

Refer to section 4.8 for details on calibration.

Displays the outlet pressure in real time.

Also used for the inlet pressure set up.

Sets the units of measure for the outlet pressure.
Units available are Bar / Psi / Mpa

1.1 Hours run 1.1 Hours run
5234h 5234h

1.2 Service due at 1.2 Service due at
8000h 8000h

1.3 Hours economy 1.3 Hours economy
25h 25h

1.4 Hours EST 1.4 Hours EST
4h 4h

2.1 Fault 1: Active2.1 Fault 1: Active
C1 at 5234h C1 at 5234h

1121

3.1 Password enable3.1 Password enable
= 0 = 0

3.2 Oxygen alarm 3.2 Oxygen alarm
over-ride =0 over-ride =0

3.3 Calibrate outlet3.3 Calibrate outlet
sensor = 5.00% sensor = 5.00%

3.4 Calibrate EST3.4 Calibrate EST
sensor = 5.00% sensor = 5.00%

3.5 Pressure reading 3.5 Pressure reading
= 8Bar = 8Bar

3.6 Pressure units 3.6 Pressure units
= Bar = Bar

21 - EN

Changing Parameters

Use the and keys to scroll through to the desired menu and press .

The flashing cursor should be positioned over the “=” sign to indicate that the parameter may be changed.

Use the / keys to change the parameter.

Press to accept the changes or press and simultaneously to cancel the changes.

Press and simultaneously to return to the customer settings menu and then again to return to the
main operating menu.

Sets the purity level at which an oxygen fault is initiated.
Default Settings:
% Generators - 0.05% above the selected production purity.
ppm Generators - 5ppm above the selected production purity.

If the purity level exceeds the oxygen alarm level for a period longer than the alarm delay, the oxygen alarm
will be activated and the gas will be vented to atmosphere.

Delay Range = 0 – 600 Seconds, Default = 60 Seconds

Sets the Full Scale Deflection value for the 4 – 20mA Analogue Output of the Oxygen sensor(s).

When enabled the bed cleaning cycles will run whenever the generator is powered up, comes out of standby
mode and economy mode.

0 = Disabled, 1 = Enabled

Enables the economy mode.

0 = Disabled, 1 = Enabled

When enabled the actuation of the Stop control will generate an alarm.

0 = Disabled, 1 = Enabled

Sets the address for the generator when communicating on a network via the RS485 MODBUS port.

Address range is 1 – 247

Sets the mode of control for the generator

1 = Local Start / Stop control, 2 = Remote Start / Stop control via the digital input, 3= Remote
communication

Sets the parity for Modbus communication.

Even, Odd, None2, None1

Note. None2 and None1 refer to no parity with two or one stop bits.

Enables the EST mode.

0 = Disabled, 1 = Enabled

3.7 Oxygen alarm 3.7 Oxygen alarm
level =15ppm level =15ppm

3.8 Oxygen alarm 3.8 Oxygen alarm
delay = 60s delay = 60s

3.9 Oxygen Analogue3.9 Oxygen Analogue
FSD = 6.0% FSD = 6.0%

3.10 Start cycle 3.10 Start cycle
enable = 1 enable = 1

3.11 Economy enable 3.11 Economy enable
= 1 = 1

3.12 Fault relay 3.12 Fault relay
on stop =1 on stop =1

3.13 Machine number 3.13 Machine number
= 1 = 1

3.14 Remote control 3.14 Remote control
= 1 = 1

3.15 Modbus parity 3.15 Modbus parity
= Even = Even

3.16 EST enable 3.16 EST enable
= 0 = 0

3.6 Pressure units
= Bar = Bar

3.6 Pressure units 3.6 Pressure units
= Bar

3.6 Pressure units
= PSI = PSI

22 - EN

4.5 Oxygen Content

The residual oxygen content of the N2 process gas is continually monitored during normal operation. If the oxygen content increases above the
alarm level the nitrogen gas is vented to atmosphere at a reduced flow until the purity recovers.

4.6 Economy Mode

Economy mode is designed to switch the generator into standby mode when there is no demand for gas.

The generator monitors the outlet pressure and, if it exceeds a pre-determined level for a sustained period of time (Economy Period *), the N2
outlet valve will close. The generator will continue to cycle as normal without delivering gas to the application. If the back pressure is maintained
for an additional 5 minutes, the generator will stop cycling and enter Economy mode. If at any time the pressure falls below the regulated outlet
pressure, the generator will resume normal operation.

If the generator is in economy shutdown when the pressure falls it will complete the cycle and then run through the a clean up cycle prior to going
back online..

The Economy over-ride facility (optional) can be used to maintain the beds when the generator is in economy mode. If the over-ride is enabled, a
clean up cycle will be performed once every 20 minutes (default). This allows the generator to go straight on-line when the outlet pressure falls
below the regulated outlet pressure.

*The Economy Period is factory set to 5 minutes.

4.7 Energy Saving Technology - EST

If the generator is not operating at full capacity, it is unlikely that the CMS in the on-line chamber will be fully saturated at the point of changeover.

The EST system is used to monitor the O2 content of the gas at both the outlet of the buffer vessel and directly from the CMS bed. If the O2
content is below the production purity by >5% at the outlet and >20% from the CMS bed at the end of the current cycle, the EST system extends
the cycle of the generator and changeover is delayed. Depending upon the production purity requirements, the generator will remain in this state
for up to 300 seconds.

If at any point the O2 content of the gas rises to within 5% (at the outlet) or 20% (from the CMS bed) of the production purity the generator will
resume normal cyclic operation.

Note. The economy mode described above will override the EST as required.

The economy mode can be disabled within the customer settings menu, however Parker domnick hunter strongly recommend that this option
remains enabled.

23 - EN

4.8 Oxygen Sensor Calibrationn

The O2 sensor(s) should be checked every 3 months and calibrated, if
required, using a calibrated gas supply.

Note. The purity of the calibration gas should be as close to the production gas
purity as possible (minimum of 50ppm). Do not exceed 7bar g (101.5psi g)

pressure.

If the generator is fitted with a second O

2

sensor for EST (as illustrated)

both sensors must be calibrated at the same time.

For low purity applications the calibration may be performed using compressed
air. This method is not recommended when the purity of the gas is critical.

1 Navigate to menu 3.2 and enable the Oxygen Alarm Over-ride.

2 If using a calibrated gas supply - connect the gas to the Calibration Port

on the side of the generator.

3 Locate the calibration ball valve and rotate the handle clockwise so that it

is pointing towards Calibration from Calibrated Gas position.

Note. The calibration ball valve should be left in its original position if
using compressed air.

4 Rotate the handles of the Outlet Gas O2 Sensor ball valve and the CMS

Gas O2 Sensor ball valve (if fitted) 180

o

so that they are pointing towards

the Calibration (as indicated on the calibration label).

5 Wait approximately fifteen minutes for the O2 reading to stabilise.

6 Navigate to menu 3.3 and press .

Using the and keys enter the purity of the calibration gas.

Press to send the calibration level to the O2 Analyser.

On successful completion of the calibration the new O

2

reading will be

shown on the bottom line of the display.

If the calibration is not successful the original reading from the analyser
will be loaded. Should this occur repeat the above steps.

7 Repeat step 6 for the EST sensor (if fitted) in menu 3.4.

8 On completion of the calibration, return the ball valves back to their

original position and remove the regulated calibration gas supply as
applicable.

9 Navigate to menu 3.2 and disable the O2 Alarm Over-ride.

When returning to the main operating menu, “CAL” will be shown on the
top line of the display. This will remain for a period of twenty minutes after
the calibration. Throughout this time period the O2 alarm is overridden, to
allow the sensor(s) to return to the required level.

The following procedure must be carried only be performed by a Responsible Body or Service Personnel only.
Operators should not perform this operation.

Hot surfaces and hazardous live voltages. Take care when performing the following calibration procedure as there are hazardous live
voltages and potentially hot surfaces within the enclosure.

Note. The ball valves are shown in the normal operation position and should be

returned to this position on completion of the calibration.

1

Calibration Port

2

Calibration ball valve

3

Outlet Gas O2 Sensor

4

Outlet Gas O2 Sensor ball valve

5

CMS Gas O2 Sensor (EST)

6

CMS Gas O2 Sensor (EST) ball valve

24 - EN

5 Preventative Maintenance

5.1 Cleaning

Clean the equipment with a damp cloth only and avoid excessive moisture around any electrical sockets. If required you may use a mild
detergent, however do not use abrasives or solvents as they may damage the warning labels on the equipment.

5.2 Maintenance Schedule

Key:

Description Of Service Required

Service Recommended Every:

1

1.The service operations should be performed at the hours run or fixed time intervals specified (whichever occurs first)

Component Operation

Daily

3 Months

(2000 Hrs.)

6 Months

(4000 Hrs.)

12 Months

(8000 Hrs.)

24 Months

(16000 Hrs.)

36 Months

(24000 Hrs.)

60 Months

(40000 Hrs.)

Generator Check the status indicators located on the front panel.

System Check the inlet air quality.

Generator Check for air leaks

Generator Check the pressure gauges during purging for excessive back pressure.

Generator Check the condition of the electrical supply cables and conduits.

Generator Check oxygen sensor(s) and calibrate if necessary

Generator Check for cyclic operation

Filtration

Replace Exhaust silencer and filter element(s)

Recommended Service A

Generator

Replace Oxygen sensor(s)

Recommended Service B

Generator

Replace control valves

Recommended Service C

Generator

Replace cylinder and solenoid valves

Recommended Service D

Check

(Operator)

Essential Procedure

(Service Personnel only)

Essential Procedure

(Responsible Body or Service Personnel only)

25 - EN

5.3 Preventative Maintenance Kits

The following preventative maintenance kits must be installed by service personnel only.

5.3.1 High Purity Generators (PPM)

Generators without EST Functionality (Model Nos. N2XXPAXN)

Generators with EST Functionality (Model Nos. N2XXPAXY)

5.3.2 Low Purity Generators (%)

Generators without EST Functionality (Model Nos. N2XXPBXN)

Generators with EST Functionality (Model Nos. N2XXPBXY)

Ref. Catalogue No. Description 12 24 36 48 60 72 84 96 108 120

A M12.NONEST.0001

12 Month Non EST Service Kit

(Every 12 Months)

D D D D D D D D D D

B M24.PPM.0001

24 Month PPM Service Kit

(Every 24 Months)

D D D D D

C M36.STD.0001

36 Month Standard Service Kit

(Every 36 Months)

D D D

D M60.STD.0001

60 Month Standard Service Kit

(Every 60 Months)

D D

Ref. Catalogue No. Description 12 24 36 48 60 72 84 96 108 120

A M12.EST.0001

12 Month EST Service Kit

(Every 12 Months)

D D D D D D D D D D

B M24.PPM.0001

24 Month PPM Service Kit

(Every 24 Months)

(x2) (x2) (x2) (x2) (x2)

C M36.STD.0001

36 Month Standard Service Kit

(Every 36 Months)

D D D

D M60.STD.0001

60 Month Standard Service Kit

(Every 60 Months)

D D

Ref. Catalogue No. Description 12 24 36 48 60 72 84 96 108 120

A M12.NONEST.0001

12 Month Non EST Service Kit

(Every 12 Months)

D D D D D D D D D D

B M24.PCT.0001

24 Month Percentage Service Kit

(Every 24 Months)

D D D D D

C M36.STD.0001

36 Month Standard Service Kit

(Every 36 Months)

D D D

D M60.STD.0001

60 Month Standard Service Kit

(Every 60 Months)

D D

Ref. Catalogue No. Description 12 24 36 48 60 72 84 96 108 120

A M12.EST.0001

12 Month EST Service Kit

(Every 12 Months)

D D D D D D D D D D

B M24.PCT.0001

24 Month Percentage Service Kit

(Every 24 Months)

(x2) (x2) (x2) (x2) (x2)

C M36.STD.0001

36 Month Standard Service Kit

(Every 36 Months)

D D D

D M60.STD.0001

60 Month Standard Service Kit

(Every 60 Months)

D D

26 - EN

5.3.3 Kit Contents

Catalogue No. Description Contents

M12.NONEST.0001

12 Month Non EST Service Kit

(Every 12 Months)

Exhaust Silencer

025AR Dust filter element

Catalogue No. Description Contents

M12.EST.0001

12 Month EST Service Kit

(Every 12 Months)

Exhaust Silencer

025AR Dust filter element

In-line filter

Catalogue No. Description Contents

M24.PPM.0001

24 Month PPM Service Kit

(Every 24 Months)

PPM Cell c/w wiring

M24.PCT.0001

24 Month Percentage Service Kit

(Every 24 Months)

% Cell c/w wiring

Catalogue No. Description Contents

M36.STD.0001

36 Month Standard Service Kit

(Every 36 Months)

8 Bank solenoid valve

Catalogue No. Description Contents

M60.STD.0001

60 Month Standard Service Kit

(Every 60 Months)

40 x 25mm stroke cylinders (x6)
Over moulded valve discs and guides (x6)
50 x 100mm stroke cylinders (x2)
Valve discs (x2 sets)
Valve bonnets (x2)
Assorted o-rings
Fixing screws

27 - EN

6 Troubleshooting

In the unlikely event that a problem occurs on the equipment, this troubleshooting guide can be used to identify the probable cause and remedy.

Fault Codes

Troubleshooting should only be attempted by competent personnel. All major repair, and calibration work should be undertaken by a Parker
domnick hunter trained, qualified and approved engineer.

Fault Probable Cause Remedy

Power Connected but LCD and status
indicators not illuminated.

Fuse Blown Replace Fuse

Ribbon cable disconnected Reconnect Ribbon cable

Power disconnected Reconnect Power

No / Low gas outlet pressure

Service Overdue Service the generator

Internal gas leak Check and Rectify

External gas leak Check and Rectify

Low inlet pressure Ensure pressure meets required specification

High Oxygen concentration.

Defective Oxygen cell. Replace.

Leak in system piping. Check and Rectify

Low inlet pressure

Compressor or ring main pressure low. Check and Rectify

Inlet valve not open Check and Rectify

Defect on pre-treatment package. Refer to pre-treatment manual.

Excessive noise or vibration

Silencer loose or defective. Check and Rectify

Solenoid valve wear or coil loose. Check and replace if required.

High outlet pressure. Outlet regulator defective. Reset or replace.

Fault Codes Notes

C1

Pressure Start Inhibit Low inlet pressure. Inhibits start.

P1

Inlet Pressure Fault Low inlet pressure during cycling.

P2

Pressure Sensor Fault Outlet pressure sensor communication error.

E1

Power Failure

Y1

High oxygen alarm - outlet

Y2

Oxygen sensor communication failure - outlet

Communication fault between O2 analyser and control board

Y3

Incorrect oxygen cell selected - outlet

Y4

Oxygen reading high out of range - outlet

Occurs when O2 > 25% (% generators) / O2> 1.05% (ppm generators)

Y5

Oxygen sensor fault - outlet Contact Parker domnick hunter

Y6

Oxygen sensor communication failure - EST

Y7

Incorrect oxygen cell selected - EST

Y8

Oxygen sensor high out of range - EST

Y9

Oxygen sensor fault - EST

Y10

EST Board communication failure

S1

Service due

R

Declaration of Conformity EN

Parker Hannifin Manufacturing Limited, domnick hunter Filtration and Separation

Dukesway, TVTE, Gateshead, Tyne & Wear, NE11 0PZ. UK

NitroSource N2 Nitrogen Gas Generator

N2-20P - N2-80P

Directives

97/23/EC
2006/95/EC
2004/108/EC

Standards used

EN 61010-1 : 2010
EN 61326-1 : 2013
EN 61000-3-2 : 2006 + A2:2009
EN 61000-3-3 : 2013
Generally in accordance with ASMEVIII Div 1 : 2010 2011a
Addenda.

PED Assessment Route :

CAT III (N2-20P - N2-35P)
CAT IV (N2-45P - N2-80P)

EC Type-examination Certificate:

TBA

Notified body for PED:

Lloyds Register Verification
71 Fenchurch St. London
EC3M 4BS

Authorised Representative

Derek Bankier

Divisional Quality Manager
Parker Hannifin Manufacturing Limited, dhFNS

Declaration

I declare that as the authorised representative, the above information in relation to the supply / manufacture of this product, is
in conformity with the standards and other related documents following the provisions of the above Directives.

Signature: Date: 41969

Declaration Number: 00278/261114

Parker Hannifin Manufacturing Limited

domnick hunter Filtration and Separation Division
Dukesway, Team Valley Trading Est
Gateshead, Tyne and Wear
England NE11 0PZ
Tel: [phone]
Fax: [phone]
www.parker.com/dhfns

© Parker Hannifin Corporation. All rights reserved. Catalogue: 176500100

12/14 Rev: A

Ed. 2011-03-03

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Tel: + 852 2428 8 0 08

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