Renishaw NC4+ Blue F115C User manual

#renishaw
NC4+ Blue non-contact tool setting
system
www.renishaw.com/nc4
Installation guide

Compliance information for this product is available by scanning the QR code or visiting
www.renishaw.com/mtpdoc

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Contents
Before you begin ...................................................................1-1
Trade marks ........................................................................1-1
Warranty ...........................................................................1-1
CNC machines ......................................................................1-1
Care of the system ...................................................................1-1
Patents ............................................................................1-2
Intended use........................................................................1-2
Safety .............................................................................1-3
Information to the user ...........................................................1-3
Information to the machine supplier / installer .........................................1-4
Information to the equipment installer ...............................................1-4
Equipment operation ............................................................1-4
Warnings ..........................................................................1-5
Laser safety and warning labels .........................................................1-6
Location of the laser aperture...........................................................1-6
NC4+ Blue basics ...................................................................2-1
Introduction.........................................................................2-1
NC4+ Blue unit components............................................................2-1
Guidelines for best practice ............................................................2-2
NC4+ Blue specication ...............................................................2-3
NC4+ Blue system minimum tool diameter or feature size.....................................2-4
Dimensions of NC4+ Blue units with connector .............................................2-5
Dimensions of hard-wired NC4+ Blue units ................................................2-6
Mounting adjuster plate dimensions......................................................2-7
Cable with connector dimensions........................................................2-7
System installation..................................................................3-1
How to install and congure the NC4+ Blue system..........................................3-1
Air supply information .................................................................3-2
Best practices .......................................................................3-2
Installing the air preparation pack........................................................3-3
Installing the NC4+ Blue system ........................................................3-4
Straight conduit gland shown tted to a typical hard-wired unit (ttedasstandard)..................3-6
Optional 90° gland adaptor shown tted to a typical hard-wired unit .............................3-6
Installing the NCi-6 interface unit ........................................................3-8
NC4+ Blue system wiring details ........................................................3-9
Supplying electrical power to the NCi-6 interface unit ........................................3-9

ii NC4+ Blue non-contact tool setting system
Power loss and restoration .............................................................3-9
Setting the NC4+ Blue barrier air pressure ...............................................3-10
Setting the NC4+ Blue air blast pressure .................................................3-11
Macro programming software..........................................................3-11
Software and user information .........................................................3-12
Machine tool apps ..................................................................3-12
Aligning the NC4+ Blue unit to the machine axes ..........................................3-13
Alignment tolerances ................................................................3-14
Maintenance .......................................................................4-1
Introduction.........................................................................4-1
Removing and retting the air preparation lter elements .....................................4-2
Removal and replacement of membrane dryer module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Cleaning the optics...................................................................4-5
Cleaning the NC4+ Blue unit ......................................................4-5
To clean the optics ..............................................................4-6
After cleaning the NC4+ Blue unit ..................................................4-7
Replacing the air blast nozzle...........................................................4-8
To replace the air blast nozzle .....................................................4-8
After replacing the air blast nozzle ..................................................4-8
Head alignment of the NC4+ Blue unit ....................................................4-9
Using a voltmeter ..............................................................4-10
NC4 set-up tool.....................................................................4-11
Introduction...................................................................4-11
Dimensions...................................................................4-11
Using the set-up tool ...........................................................4-12
Replacing the set-up tool battery ..................................................4-13
Battery specication ............................................................4-13
Status LED function .................................................................4-14
Fault-nding .......................................................................5-1
Parts list ..........................................................................6-1
NC4+ Blue hard-wired unit pack, supplied with:.............................................6-1
NC4+ Blue hard-wired 90°unit pack, supplied with: ..........................................6-2
NC4+ Blue hard-wired full installation pack, supplied with: ....................................6-3
NC4+ Blue hard-wired 90° full installation pack, supplied with: .................................6-4
NC4+ Blue unit pack with connector socket, supplied with: ....................................6-5
NC4+ Blue with connector socket full installation pack, supplied with:............................6-6
NC4+ Blue with connector socket 90° full installation pack, supplied with: ........................6-7

1-1
www.renishaw.com/nc4
Before you begin
Trade marks
Google Play and the Google Play logo are trademarks of Google LLC.
Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App
Store is a service mark of Apple Inc., registered in the U.S. and other countries.
Warranty
Unless you and Renishaw have agreed and signed a separate written agreement, the equipment and/or
software are sold subject to the Renishaw Standard Terms and Conditions supplied with such equipment
and/or software, or available on request from your local Renishaw ofce.
Renishaw warrants its equipment and software for a limited period (as set out in the Standard Terms
and Conditions), provided that they are installed and used exactly as dened in associated Renishaw
documentation. You should consult these Standard Terms and Conditions to nd out the full details of your
warranty.
Equipment and/or software purchased by you from a third-party supplier is subject to separate terms and
conditions supplied with such equipment and/or software. You should contact your third-party supplier for
details.
CNC machines
CNC machine tools must always be operated by fully-trained personnel in accordance with the
manufacturer’s instructions.
Care of the system
Keep system components clean and treat the unit as a precision tool.

1-2 NC4+ Blue non-contact tool setting system: Before you begin
Patents
Features of the NC4+ Blue unit non-contact tool setting system and features of similar Renishaw products,
are the subject of one or more of the following patents and/or patent applications:
Microchip software licensing agreement
This product’s rmware has been developed by Renishaw with the use of the Microchip libraries, under the
following licensing terms:
Copyright © 2017, Microchip Technology Inc. and its subsidiaries (“Microchip”)
All rights reserved.
This software is developed by Microchip Technology Inc. and its subsidiaries (“Microchip”).
Redistribution and use in source and binary forms, with or without modication, are permitted provided
that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Microchip’s name may not be used to endorse or promote products derived from this software without
specic prior written permission.
THIS SOFTWARE IS PROVIDED BY MICROCHIP “AS IS” AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
MICROCHIP BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA OR PROFITS; OR BUSINESS INTERRUPTION)
HOWSOEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Intended use
The NC4+ Blue unit is a laser-based non-contact tool setting system that provides high-speed/
high-precision measurement of cutting tools on a machining centre under normal operating conditions.
CN 100394139
CN 113242954
EP 1502699
EP 3864368
JP 4520240
US 2021-0347003
US 7312433

1-3
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Safety
Information to the user
The NC4 set-up tool (Renishaw part no. A-4114-8000, sold separately) is supplied with non-rechargeable
lithium metal batteries. Refer to the battery manufacturer’s literature for specic battery operating, safety
and disposal guidelines.
• Do not attempt to recharge the batteries.
• Replace the batteries only with the specied type.
• Do not mix new and used batteries in the product.
• Do not mix different types or brands of batteries in the product.
• Ensure that all batteries are inserted with the correct polarity in accordance with the instructions in
this manual and indicated on the product.
• Do not store the batteries in direct sunlight.
• Do not expose the batteries to water.
• Do not expose the batteries to heat or dispose of the batteries in a re.
• Avoid forced discharge of the batteries.
• Do not short circuit the batteries.
• Do not disassemble, apply excessive pressure, pierce, deform or subject the batteries to impact.
• Do not swallow the batteries.
• Keep the batteries out of the reach of children.
• If the batteries are swollen or damaged do not use them in the product and exercise caution when
handling them.
• Dispose of waste batteries in accordance with your local environmental and safety laws.
Ensure that you comply with international and national battery transport regulations when transporting the
batteries or this product with the batteries inserted. Lithium metal batteries are classied as dangerous
goods for transportation and require labelling and packaging in accordance with the dangerous goods
regulations before being offered for transportation. To reduce the risk of shipment delays, should you need
to return this product to Renishaw for any reason, do not return any batteries.
In all applications involving the use of machine tools, eye protection is recommended.

1-4 NC4+ Blue non-contact tool setting system: Before you begin
Information to the machine supplier / installer
It is the machine supplier’s responsibility to ensure that the user is made aware of any hazards involved in
operation, including those mentioned in Renishaw product literature, and to ensure that adequate guards
and safety interlocks are provided.
If the NC4+ Blue unit fails, the output signal may falsely indicate beam not blocked. Do not rely on signals
from the NC4+ Blue unit to halt the movement of the machine.
Information to the equipment installer
All Renishaw equipment is designed to comply with the relevant UK, EU and FCC regulatory requirements.
It is the responsibility of the equipment installer to ensure that the following guidelines are adhered to, in
order for the product to function in accordance with these regulations:
• any interface MUST be installed in a position away from any potential sources of electrical noise (for
example, power transformers, servo drives);
• all 0 V/ground connections should be connected to the machine “star point” (the “star point” is a single
point return for all equipment ground and screen cables). This is very important and failure to adhere
to this can cause a potential difference between grounds;
• all screens must be connected as outlined in the user instructions;
• cables must not be routed alongside high current sources (for example, motor power supply cables),
or be near high-speed data lines;
• cable lengths should always be kept to a minimum.
Equipment operation
If this equipment is used in a manner not specied by the manufacturer, the protection provided by the
equipment may be impaired.

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Warnings
Use of controls or adjustments or performance of procedures other than those specied within this
publication may result in hazardous radiation exposure.
Switch off the power supply before carrying out maintenance on the NC4+ Blue system.
When using the NC4+ Blue system, basic safety precautions must always be followed to reduce the risk of
re, electric shock and personal injury, including the following:
• Read all instructions before operating this product.
• The device must only be installed and used by competent, trained personnel.
• Use eye protection to protect against mechanical hazards, coolant and swarf.
• Avoid inhalation of coolant vapour from the machine tool.
• Do not block the air exiting from the transmitter, receiver or air blast apertures.
• The sound power emitted by the air blast equipment can range from 70.3 dB at 0.3 MPa (43.51 psi)
to 78.2 dB at 0.6 MPa (87.02 psi). It is the responsibility of the integrator to ensure a suitable noise
assessment is performed when the equipment is put into use.
• Prevent direct exposure of the eyes to the laser beam.
• Ensure that the beam is not reected into the eyes via any reective surface.
CAUTION – LASER SAFETY
The laser used in the Renishaw NC4+ Blue non-contact tool setting system emits visible blue light at a
wavelength of 405 nm and has a power output of less than 1 mW.
The NC4+ Blue unit is classied as a Class 2 laser product as dened by BS EN 60825-1:2014.
Complies with 21 CFR 1040.10 and 1040.11 except for conformance with IEC 60825-1 Ed. 3., as
described in Laser Notice No. 56, dated May 8, 2019.
BS EN 60825-1:2014 directs to attach a laser warning label and explanatory label.
A warning label and explanatory label are permanently xed to each side of the transmitter (Tx) housing
(see page 1-6, “Laser safety and warning labels”, for further information). An adhesive warning label is
also provided. Renishaw advise attaching this label to the outside of the machine tool, in a visible location.

1-6 NC4+ Blue non-contact tool setting system: Before you begin
激光辐射
请勿直视激光光束
Laser safety and warning labels
Label B
Label A
Laser ‘On’ and status LED (for more information, see
page 4-14, “Status LED function”).
NOTE: Labels A and B are tted to
the transmitter head only.
An adhesive warning label is
provided for attachment outside the
machine.
Label A Label B
Location of the laser aperture
Access panel identication markings, denoting system range (for
more information, see the NC4 non-contact tool setting system
accessories data sheet (Renishaw part no. H-2000-2223)).
Laser aperture / MicroHole™
Caution symbol (see “CAUTION symbol” below,
for further information)
CAUTION – LASER SAFETY
The access panel is to be removed for service
purposes only using the special tool supplied.
Before removing the panel, switch off electrical
power to the transmitter head to avoid exposure
to the laser beam.
CAUTION SYMBOL
The caution symbol on the access panel denotes
the following:
CAUTION – Class 3R Laser radiation when
open. Avoid direct eye exposure.
This text is not included on the access panel due
to the limited space available.
!!
Complies with 21 CFR 1040.10 and 1040.11
except for conformance with IEC 60825-1
Ed. 3., as described in Laser Notice No. 56,
dated May 8, 2019.

2-1
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NC4+ Blue basics
Introduction
This guide describes how to install, congure, maintain and service the Renishaw NC4+ Blue non-contact
tool setting system.
The NC4+ Blue unit is a laser-based non-contact tool setting system that provides high-speed/
high-precision measurement of cutting tools on a machining centre under normal operating conditions.
As a tool moves through the laser beam, the system detects when the beam is broken. Output signals sent
to the controller allow the presence of a tool and the position of the tip to be established. This can be used
to determine the dimensions of tools (tool measurement) or condition of tools (broken tool detection).
NC4+ Blue unit components
Tx mount
Mounting and
adjuster plate
Rx mount
Barrier air
tting
Air blast air
tting
Connector
socket
Rx head
Status LED
Access
panels
Status LED
Tx head
Access panel
Laser
aperature /
MicroHole™
Access panel
identication
marking
Air blast

2-2 NC4+ Blue non-contact tool setting system: NC4 basics
Guidelines for best practice
• The NC4+ Blue unit is a precision device and must be handled with care.
• Ensure that all mountings are secure.
• Keep electrical contacts clean.
• Mount the NC4+ Blue unit in a position that limits the risk of it being subjected to impact when
operating the machine.
• Mount the NC4+ Blue unit in a position where it will not be affected by a build-up of swarf. Do not allow
excessive waste material to build up on or around the NC4+ Blue unit.
• Cables, piping and conduit should be suitably secured to avoid damage and loads being transferred to
the NC4+ Blue unit.
• Optimum performance is achieved by continuously supplying air and power to the NC4+ Blue unit.
• The NC4+ Blue unit is protected by a continuous stream of clean air. Approximately once a month,
inspect the optics for contamination. The service interval may be extended or reduced depending on
experience.
• The NC4+ Blue barrier air supply must conform to BS ISO 8573-1 air quality of Class 1.4.2 and be
moisture-free.

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Principal
application
High-precision, high-speed non-contact tool setting and tool breakage detection on
all sizes of vertical and horizontal machining centres, multi-tasking machines and
gantry machining centres.
Transmission type Hard-wired transmission
Compatible
interfaces
NCi-6
Repeatability F115 and F145 ±0.5 μm (19.69 μin) 2s
F230 and F300 ±0.75 μm (29.53 μin) 2s
Output signal
(from interface unit)
Two voltage-free, solid-state relays (SSR). Each can be either normally open or
normally closed (selectable via a switch). Current (maximum) 50 mA, voltage
(maximum) ±50 V.
The interface contains an auxiliary relay which can be used for switching the
output between the NC4+ Blue and a spindle probe. This relay can also be used to
control an air blast solenoid (optional).
Supply voltage
(to interface)
11 Vdc to 30 Vdc
Supply current
(to interface)
120 mA @ 12 Vdc, 70 mA @ 24 Vdc
Supply protection Resettable fuses in interface. Reset by removing power and cause of fault.
Electrical
connection
arrangement
Systems with connector: Connector socket.
Hard-wired systems: Cable on the end of the unit.
Other congurations are available on request.
Cable
(to interface)
Specication Ø6.0 mm (0.24 in), two twisted pairs, two individual cores
plus screen, each core 18 × 0.1 mm insulated.
Length 12.5 m (41.01 ft)
Electrical
connection
Systems with connector: cable with bayonet-type plug,
connector socket on the end of the unit.
Hard-wired systems: cable on the end of the unit.
Other congurations are available on request.
Barrier air
pneumatic
supply
Air supply to the NC4 must conform to BS ISO 8573-1 Class 1.4.2. 6.0 bar
(87.02 psi) maximum.
Systems with connector: Ø4.0 mm (0.16 in) × 5.0 m (16.40 ft).
Hard-wired systems: Ø3.0 mm (0.12 in) × 5.0 m (16.40 ft).
Air blast
pneumatic supply
Air supply to the air blast must conform to BS ISO 8573-1 Class 2.9.4.
Ø6.0 mm (0.24 in) air pipe × 5.0 m (16.40 ft), 6.0 bar (87.02 psi) maximum.
Laser type Class 2 laser product:
1 mW maximum output emitted wavelength 405 nm.
WARNING: Laser radiation. Do not stare into the beam.
Laser beam
alignment
The unit is supplied with an adjustable mounting plate on the underside.
Weight (including
12.5 m (41.01 ft) of
cable)
1080 g (2.38 lb) to 2000 g (4.4 lb) depending on conguration.
NC4+ Blue specication

2-4 NC4+ Blue non-contact tool setting system: NC4 basics
NC4+ Blue system minimum tool diameter or feature size
NOTE: The minimum tool diameter values listed in this table are typical values. They are provided for
guidance purposes only.
NC4+ Blue
system
Minimum tool diameter
or feature size
F115 0.03 (0.001)
F145 0.05 (0.002)
F230 0.1 (0.004)
F300 0.2 (0.008)
Dimensions given in mm (in)
Mounting M4 (× 3), M10 (3/8 in) or M12 (½ in) bolts (not supplied) for mounting via adjuster
plate.
Other xing arrangements are available on request.
Environment IP rating IPX6 and IPX8, BS EN 60529:1992+A2:2013
Storage
temperature
–25 °C to +70 °C (–13 °F to +158 °F)
Operating
temperature
+5 °C to +55 °C (+41 °F to +131 °F)
NC4+ Blue specication (continued)

2-5
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Dimensions in mm (in)
Ø30.0
(Ø1.18)
30.0
(1.18)
8.0
(0.31)
Ø30.0
(Ø1.18)
B
C
H
GD
E
F
A
13.5 (0.53)
Beam height
Dimensions of NC4+ Blue units with connector
Model Dimensions
A B C D E F G H
NC4+ Blue F115C 55.0
(2.17)
155.0
(6.10)
97.3
(3.83)
31.0
(1.22)
61.0
(2.40)
77.0
(3.03)
18.1
(0.71)
13.8
(0.54)
NC4+ Blue F115C-R 55.0
(2.17)
155.0
(6.10)
97.3
(3.83)
50.0
(1.97)
80.0
(3.15)
96.0
(3.78)
35.1
(1.38)
12.3
(0.48)
NC4+ Blue F145C 85.0
(3.35)
185.0
(7.28)
112.3
(4.42)
31.0
(1.22)
61.0
(2.40)
77.0
(3.03)
21.3
(0.84)
25.3
(1.00)
NC4+ Blue F145C-R 85.0
(3.35)
185.0
(7.28)
112.3
(4.42)
50.0
(1.97)
80.0
(3.15)
96.0
(3.78)
37.1
(1.46)
24.7
(0.97)
NC4+ Blue F230C 170.0
(6.69)
270.0
(10.63)
155.0
(6.10)
31.0
(1.22)
61.0
(2.40)
77.0
(3.03)
21.3
(0.84)
25.3
(1.00)
NC4+ Blue F230C-R 170.0
(6.69)
270.0
(10.63)
155.0
(6.10)
50.0
(1.97)
80.0
(3.15)
96.0
(3.78)
40.3
(1.59)
44.3
(1.74)
NC4+ Blue F300C 240.0
(9.45)
340.0
(13.39)
190.0
(7.48)
31.0
(1.22)
61.0
(2.40)
77.0
(3.03)
21.3
(0.84)
25.3
(1.00)
NC4+ Blue F300C-R 240.0
(9.45)
340.0
(13.39)
190.0
(7.48)
50.0
(1.97)
80.0
(3.15)
96.0
(3.78)
40.3
(1.59)
44.3
(1.74)
Dimensions in mm (in)

2-6 NC4+ Blue non-contact tool setting system: NC4 basics
Dimensions in mm (in)
Dimensions of hard-wired NC4+ Blue units
Model Dimensions
A B C D E F G H
NC4+ Blue F145 85.0
(3.35)
145.0
(5.71)
72.5
(2.85)
31.0
(1.22)
61.0
(2.40)
77.0
(3.03)
20.4
(0.80)
24.5
(0.96)
Dimensions in mm (in)
Ø30.0
(Ø1.18)
30.0
(1.18)
8.0
(0.31)
Ø30.0
(Ø1.18)
B
C
H
GD
E
F
A
Beam height

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Mounting adjuster plate dimensions
Dimensions given in mm (in)
18.0
(0.71)
25.0 (0.98)
5.0
(0.20)
27.5 (1.08)
41.5 (1.63)
55.0 (2.17)
30.0 (1.18)
15.0
(0.59)
Mounting/adjuster plate
Hole for M4 screw (× 3)
A
View on A
Hole for M10 (3/8) or M12 (½) bolt
Cable with connector dimensions
Dimensions given in mm (in)
Straight connector
90° connector
90.0 (3.54)
62.0
(2.44)
49.4
(1.93)
30.0
(1.18)
10.3
(0.41)
30.0
(1.18)
65.0
(2.56)
28.0
(1.10)
93.0 (3.66)
28.0
(1.10)

2-8 NC4+ Blue non-contact tool setting system: NC4 basics
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System installation
How to install and congure the NC4+ Blue system
Install and congure the NC4+ Blue system in the sequence described below:
1. Install the air preparation pack (see page 3-3, “Installing the air preparation pack”, for further
information). Do not switch on the air supply or set the air pressure at this stage.
2. Install the NC4+ Blue system (see page 3-4, “Installing the NC4+ Blue system”, for further
information).
3. Install the NCi-6 interface unit (see page 3-8, “Installing the NCi-6 interface unit”, for further
information).
4. Switch on electrical power to the NCi-6 interface unit (see page 3-9, “Supplying electrical power to
the NCi-6 interface unit”, for further information).
5. Switch on the barrier air supply to the NC4+ Blue unit and set the air pressure (see page 3-10,
“Setting the NC4+ Blue barrier air pressure”, for further information).
6. Align the NC4+ Blue unit (see page 3-13, “Aligning the NC4+ Blue unit to the machine axes”, for
further information).
7. Finally, calibrate the system as described in the appropriate non-contact tool setting software
programming guide.
8. If problems occur, or for more information, see page 5-1, “Fault-nding”.
NOTE: The solenoid valve can be controlled by an M-code connected using the auxiliary relay on NCi-6, CN2 pins 3, 4, 5 and 6.
Alternatively, the M-code can be connected directly to the solenoid valve.
Air preparation for barrier air
Air preparation for air blast
(sold separately)
CNC machine
controller
Solenoid valve
(sold separately)
NC4+ Blue unit
NCi-6 interface
unit
See NOTE
Ø4.0 mm air pipe
Ø6.0 mm
air pipe
Ø6.0 mm (0.24 in) cable
(one or two dependent on
system conguration)

3-2 NC4+ Blue non-contact tool setting system: System installation
Air supply information
The barrier air supply to the NC4+ Blue unit must conform to BS ISO 8573-1 air quality of Class 1.4.2
and be moisture-free. If the air quality cannot be guaranteed, an air preparation pack is available from
Renishaw; see the NC4 non-contact tool setting accessories data sheet (Renishaw part number
H-2000-2223).
The NC4+ Blue unit requires a continuous regulated air supply of up to 0.6 MPa (87.02 psi) maximum.
Failure of the air supply causes a PassiveSeal™ inside each NC4+ Blue unit to activate, protecting the unit
from the ingress of contaminants. This causes the unit to enter a trigger state. The laser beam will not be
seen exiting the transmitter head.
The cause of the air failure should be determined and rectied.
The NC4+ Blue air blast requires an air supply of up to 0.6 MPa (87.02 psi) maximum. The air supply
to the air blast must conform to BS ISO 8573-1 air quality of Class 2.9.4. A solenoid valve is required to
control the air blast. Both the air preparation pack for the air blast and the solenoid valve are available
from Renishaw; see the NC4 non-contact tool setting accessories data sheet (Renishaw part number
H-2000-2223).
Best practices
• Where possible, tap into the air supply that exits the machine air supply lter/regulator unit. Do not
connect the NC4+ Blue unit to an oiled air supply.
• When cutting air pipe, ensure it is cut straight, as a tapered cut could compromise sealing.
• Use blanking caps, supplied with the air preparation pack, when feeding air pipe through the conduit/
machine.
• Before connecting the air pipes to the inlet of the NC4+ Blue unit or air blast, briey switch on the air
supply to clear out any debris from the pipe. When no more debris is emitted, switch off the air supply
and connect to the NC4+ Blue unit.
• When installing the air pipes to the NC4+ Blue unit, keep runs as short as possible to minimise
pressure drop.
• If the temperature of the air supply is greater than 5 °C (41 °F) above ambient and is humid, an air
dryer will be required. NC4+ Blue installation packs are supplied with an air preparation pack including
dryer (Renishaw part number A-6435-4000).