Porosity test using high voltage

Porosity test using high voltage
®
®
Active Around the World
®
FISCHERSCOPE ® X-Ray to measure the coating
thickness according to the X-ray fluorescence
method.
Micro hardness measurement unit FISCHERSCOPE® H100 to determine the universal hardness
HU of thin coatings and foils.
DUALSCOPE ® MP40 with probe ED10 to measure
coating thickness on ferromagnetic, as well as nonferromagnetic materials with automatic recognition
and selection of the measurement method.
The high quality standard of FISCHER
instruments is the result of our efforts to
provide the very best instrumentation to
our customers.
FISCHER is a reliable and competent
partner, offering expert advice, extensive
service, and training seminars.
Today, FISCHER instruments are used
successfully in all technological fields of
industry and research.
© Helmut Fischer GmbH + Co
Subjects to changes
Printed in Germany
Helmut Fischer GmbH + Co
71069 Sindelfingen, Germany
Tel. (+49) 70 31 303-0, Fax (+49) 70 31 303-79
Internet: http://www.Helmut-Fischer.com
Fischer Instrumentation (G.B.) Ltd.
Lymington/Hampshire SO41 8JD, England
Tel. (+44) 1590-683663, Fax (+44) 1590-684110
Internet: http://www.fischergb.co.uk
Fischer Technology, Inc.
Windsor, Ct. 06095, USA
Tel. 860 683-0781, Fax 860 688-8496
Internet: http://www.fischer-technology.com
Sole Agent for Helmut Fischer GmbH + Co, Germany:
Fischer Instruments, S.A.
08018 Barcelona, Spain
Tel. (+34) 93 309 79 16, Fax (+34) 93 485 05 94
E-Mail: spain@helmutfischer.com
Fischer Instrumentation (S) Pte Ltd.
Singapore 118529, Singapore
Tel. (+65) 276 67 76, Fax (+65) 276 76 67
E-Mail: singapore@helmutfischer.com
Nantong Fischer Instrumentation Ltd.
Shanghai 200437, P.R.C., China
Tel. (+86) 21 6555 7455, Fax (+86) 21 6555 2441
E-Mail: china@helmutfischer.com
Helmut Fischer Instrumentation (M) Sdn Bhd
11900 Penang, Malaysia
Tel. (+60) 4646 5977, Fax (+60) 4646 5851
E-Mail: singapore@helmutfischer.com
Branch Offices of Helmut Fischer AG, Switzerland:
Fischer Instrumentation Electronique
78180 Montigny le Bretonneux, France
Tel. (+33) (0) 1 30 58 00 58, Fax (+33) (0) 1 34 60 10 70
E-Mail: france@helmutfischer.com
Helmut Fischer S.R.L., Tecnica di Misura
20128 Milano, Italy
Tel. (+39) 02 255 26 26, Fax (+39) 02 257 00 39
E-Mail: italy@helmutfischer.com
Helmut Fischer Meettechniek B.V.
5627 GB Eindhoven, The Netherlands
Tel. (+31) 40 248 22 55, Fax (+31) 40 242 88 85
E-Mail: netherlands@helmutfischer.com
Fischer Instruments K.K.
Saitama-ken 340, Japan
Tel. (+81) 489 32 3621, Fax (+81) 489 32 3618
E-Mail: japan@helmutfischer.com
Fischer Instrumentation (Far East) Ltd.
Kwai Chung, N.T., Hong Kong
Tel. (+852) 24 20 11 00, Fax (+852) 24 87 02 18
E-Mail: hongkong@helmutfischer.com
932-003
ISO 9001
SQS Registration
No. 11899
Valid for Helmut Fischer AG and Branch Offices
Search for pores and defects in linings and
coatings made of enamel, lacquer, rubber and
bitumen as well as in containers made of GFK
and other synthetics.
05/00
03/00
Helmut Fischer Elektronik und Messtechnik AG
CH-6331 Hünenberg, Switzerland
Tel. (+41) 41 785 08 00, Fax (+41) 41 785 08 01
E-Mail: switzerland@helmutfischer.com
Porosity Test Using High Voltage
to the X-ray fluorescent,
Beta Backscatter,
magnetic induction,
eddy current and
coulometric methods.
Additionally, the
program includes
instruments for
measuring microhardness, ferrite
content, and
porosity testing.
FISCHER is active
around the world.
Instruments manufactured by our company are used in many
countries. FISCHER
has subsidiaries in eight
different countries.
FISCHER is a leading
multi-national company
in the field of electronic
coating thickness
measurement and
materials testing
instruments. The
company is able to
recommend the
best coating thickness measuring
instrument for any
application, due
to the company’s
extensive experience
in this field. The wide
range of instruments
includes models for
coating thickness measurements according
®
Applications, Test
Measurement Method, Features
Applications
Measurement Method
To protect objects made of steel or
metal, they are coated with corrosion
resistant materials such as rubber, synthetics or enamel. The protective coatings must be tight, that is, free of pores
cracks or embedded foreign objects, to
keep aggressive materials from the carrier material that is in danger of corrosion.
Fine pores or cracks cannot be entirely
avoided with any coating process.
The test method is based on the fact that
all electrically insulating coating materials
have a much higher disruptive strength
than air. Pore detection occurs at the
defective spots through a spark-over
(short circuit) between the test electrode
and the conducting base. A defective
spot may be a thin air channel (pore,
crack) or a coating that is too thin over
the conducting base underneath.
With the POROSCOPE® HV20 and the
POROSCOPE® HV20D, even pores and
cracks not visible to the eye can be
found and accounted for in electrically
non-conducting protective coatings.
• A frequent application is the pore test
in containers lined with enamel or
synthetics, such as:
mineral oil tanks,
agitator tanks,
pipelines,
boilers,
heat exchangers.
This is the ideal application for the
POROSCOPE® HV20.
• Coatings and materials that tend to
electrostatic charging are generally
not suited for pore testing with high
voltages using conventional methods
due to their electrostatic charging.
Now, even these coatings and materials can be tested for pores with the
POROSCOPE® HV20D. This instrument version will not result in erroneous functions due to electrostatic
charging of the material. For example,
condenser or packaging film made of
synthetic materials can be tested for
pores. One of the reversing rollers of
the foil plant can be used as the electrically conducting base, or samples
can be mounted on metal plates for
the test.
Features
POROSCOPE®
HV20
non-conductive
coating material
conductive substrate (grounded)
.
• Low-energy, and therefore safe, high
voltage.
Description HV20 and HV20D
• High voltage generation in the test
head.
The LCD display shows the high voltage in
kV that is present directly at the electrode.
Test voltage is continuously adjustable.
• Two test head versions with test
voltage ranges: 0.3 to 3 kV and 2.5 to
25 kV can be connected.
• Extensive electrode selection
• Continuously adjustable test voltage.
Pore testing the enamel coating of a boiler using the POROSCOPE® HV20.
Test
• Electronic test voltage monitoring.
Pore indication
• Test instrument POROSCOPE® HV20
(or HV20D)
• Optical indication at the test head and
the test instrument when a pore is
detected. Additionally, an acoustic signal will sound at the test head.
The pore indication occurs optically
through red LEDs at the test head and the
test instrument as well as through an
acoustical signal at the test head. The
pore detection sensitivity is selectable with
both instruments. The size of the voltage
drop at which pores should be detected
can be set.
• Test head with test head cable
• Electrode (screws onto test head)
Five-coating stretch-foil casting plant of the SMS
Company, Texas/USA.
• Display of the test voltage that is present directly at the electrode.
Required equipment:
• Ground connection cable
Test of the interior coating of a pipe with the
POROSCOPE® HV20 using a rotating electrode on a
rod extension system.
Front view of the test instrument POROSCOPE®
HV20.
The high voltage is generated in the test
head. The electrical energy at the test
electrode is designed such that the max.
short circuit current will not exceed
25 mA. The DC test voltage at the electrode can be switched on and off from
the test head.
The suitable test voltage is set according
to the disruptive strength and thickness of
the coating. The specimen is grounded
and the electrode is moved slowly across
the surface to be measured. The voltage
drops briefly when the electrode passes a
defective spot, a sparkover as well as an
optical and acoustical signal indicate the
pore. For the test, the surface must be
dry; there should be no condensation on
the coated surface. A moisture film would
dissipate the voltage immediately; the test
voltage would not build up and the test
would not be possible. Electronic test voltage monitoring provides a signal when
the test voltage falls below the required
minimum voltage.
• The pore detection sensitivity is
adjustable. Depending on the setting,
pores are indicated at short 20 to 50%
voltage drops.
Rear view of the test instrument POROSCOPE®
HV20.
b
• Battery or line operation (switchable).
Test voltage monitoring
• Connector for external 12 V voltage
supply.
The test instruments POROSCOPE® HV20
and HV20D are equipped with electronic
test voltage monitoring. A green LED on
the instrument indicates that the set test
voltage is present at the electrode. The
green LED extinguishes when the voltage
falls by more than 5% below the nominal
value.
• Connector for external On/Off switch of
test voltage and isolated relay contacts
to control acoustic signals or pulse
counters.
a
c
d
a) Test head, b) sweeper electrode, c) grounding
terminal, d) test instrument POROSCOPE® HV20.
®
Applications, Test
Measurement Method, Features
Applications
Measurement Method
To protect objects made of steel or
metal, they are coated with corrosion
resistant materials such as rubber, synthetics or enamel. The protective coatings must be tight, that is, free of pores
cracks or embedded foreign objects, to
keep aggressive materials from the carrier material that is in danger of corrosion.
Fine pores or cracks cannot be entirely
avoided with any coating process.
The test method is based on the fact that
all electrically insulating coating materials
have a much higher disruptive strength
than air. Pore detection occurs at the
defective spots through a spark-over
(short circuit) between the test electrode
and the conducting base. A defective
spot may be a thin air channel (pore,
crack) or a coating that is too thin over
the conducting base underneath.
With the POROSCOPE® HV20 and the
POROSCOPE® HV20D, even pores and
cracks not visible to the eye can be
found and accounted for in electrically
non-conducting protective coatings.
• A frequent application is the pore test
in containers lined with enamel or
synthetics, such as:
mineral oil tanks,
agitator tanks,
pipelines,
boilers,
heat exchangers.
This is the ideal application for the
POROSCOPE® HV20.
• Coatings and materials that tend to
electrostatic charging are generally
not suited for pore testing with high
voltages using conventional methods
due to their electrostatic charging.
Now, even these coatings and materials can be tested for pores with the
POROSCOPE® HV20D. This instrument version will not result in erroneous functions due to electrostatic
charging of the material. For example,
condenser or packaging film made of
synthetic materials can be tested for
pores. One of the reversing rollers of
the foil plant can be used as the electrically conducting base, or samples
can be mounted on metal plates for
the test.
Features
POROSCOPE®
HV20
non-conductive
coating material
conductive substrate (grounded)
.
• Low-energy, and therefore safe, high
voltage.
Description HV20 and HV20D
• High voltage generation in the test
head.
The LCD display shows the high voltage in
kV that is present directly at the electrode.
Test voltage is continuously adjustable.
• Two test head versions with test
voltage ranges: 0.3 to 3 kV and 2.5 to
25 kV can be connected.
• Extensive electrode selection
• Continuously adjustable test voltage.
Pore testing the enamel coating of a boiler using the POROSCOPE® HV20.
Test
• Electronic test voltage monitoring.
Pore indication
• Test instrument POROSCOPE® HV20
(or HV20D)
• Optical indication at the test head and
the test instrument when a pore is
detected. Additionally, an acoustic signal will sound at the test head.
The pore indication occurs optically
through red LEDs at the test head and the
test instrument as well as through an
acoustical signal at the test head. The
pore detection sensitivity is selectable with
both instruments. The size of the voltage
drop at which pores should be detected
can be set.
• Test head with test head cable
• Electrode (screws onto test head)
Five-coating stretch-foil casting plant of the SMS
Company, Texas/USA.
• Display of the test voltage that is present directly at the electrode.
Required equipment:
• Ground connection cable
Test of the interior coating of a pipe with the
POROSCOPE® HV20 using a rotating electrode on a
rod extension system.
Front view of the test instrument POROSCOPE®
HV20.
The high voltage is generated in the test
head. The electrical energy at the test
electrode is designed such that the max.
short circuit current will not exceed
25 mA. The DC test voltage at the electrode can be switched on and off from
the test head.
The suitable test voltage is set according
to the disruptive strength and thickness of
the coating. The specimen is grounded
and the electrode is moved slowly across
the surface to be measured. The voltage
drops briefly when the electrode passes a
defective spot, a sparkover as well as an
optical and acoustical signal indicate the
pore. For the test, the surface must be
dry; there should be no condensation on
the coated surface. A moisture film would
dissipate the voltage immediately; the test
voltage would not build up and the test
would not be possible. Electronic test voltage monitoring provides a signal when
the test voltage falls below the required
minimum voltage.
• The pore detection sensitivity is
adjustable. Depending on the setting,
pores are indicated at short 20 to 50%
voltage drops.
Rear view of the test instrument POROSCOPE®
HV20.
b
• Battery or line operation (switchable).
Test voltage monitoring
• Connector for external 12 V voltage
supply.
The test instruments POROSCOPE® HV20
and HV20D are equipped with electronic
test voltage monitoring. A green LED on
the instrument indicates that the set test
voltage is present at the electrode. The
green LED extinguishes when the voltage
falls by more than 5% below the nominal
value.
• Connector for external On/Off switch of
test voltage and isolated relay contacts
to control acoustic signals or pulse
counters.
a
c
d
a) Test head, b) sweeper electrode, c) grounding
terminal, d) test instrument POROSCOPE® HV20.
®
Technical Data, Content of Shipment, Order Information
Electrodes, Order Information
Technical Data
Standard Content of Shipment
Electrodes for HV20 and HV20D
Voltage supply/charge voltage for
installed battery (12 VDC):
220 VAC / 50 ... 60 Hz
The standard shipment of the POROSCOPE® HV20 includes a protective case
with sufficient room for the instrument,
test cable, ground connecting cable, test
head and one to two electrodes. Also
included with the standard shipment is a
carrying bag for mobile operation. The
carrying bag is a hard shell housing made
of impact-resistant synthetic material.
Battery operation:
about 2 h continuous operation
Battery monitoring:
green LED on the test instrument lights,
when the battery voltage is no longer
sufficient to maintain the set test voltage
a
d
Test voltage
(continuously adjustable range):
Test head HV3PK: 0.3 ... 3 kVDC
Test head HV20PK: 2.5 ... 25 kVDC
Dimensions [mm]
Test instruments:
14 x 70 x 220 (0.55“ x 2.8“ x 8.7“)
Test heads: length: 360 (14.2“) ;
max. ø 114 (4.5“)
Weight:
Test instruments: 2 kg
Test heads: 0.8 kg
a
c
Test instruments
Type
Description
Order no.
POROSCOPE® HV20
Portable direct current pore test instrument with continuously adjustable test
voltage.
601-933
POROSCOPE® HV20D
Portable direct current pore test instrument with continuously adjustable test
voltage. Specifically designed for testing
materials that are easily charged electrostatically.
602-734
Pore indication:
acoustical: Alarm signal at test head
optical: red LED at test head and
instrument
Pore detection sensitivity:
detection threshold settable between
20 and 50% voltage drop
Test voltage monitoring:
green LED; extinguishes when voltage
falls by more than 5% below nominal
value
Environmental conditions
during operation:
0 ... +40 ºC (32 ... +104 ºF) and
0 ... 60 % RH, no condensation
on test surface
Storage temperature:
0 ... +60 ºC (32 ... +140 ºF)
Standards:
Instrument safety: VDE 0411/1,
pasture fence ordinance
Test:
DIN 55670, DIN 28055-2, DIN 4753-3
Overview of the various electrodes.
a) Sweeper electrode b) Flat electrode c) Roller electrode d) Rotating electrodes for tests inside pipes e) Circular ring electrode for tests on the outside walls of pipes
Ordering Information HV20 and HV20D
Test voltage display:
LCD
Test voltage display error:
<5%
e
b
with ground clip to ground the carrier
material of the test specimen.
Connecting cable between test instrument and test head.
Order no.
Type
5 (196“)
601-936
HV20-AK/1
HV20-EK/10 10 (394“)
601-937
HV20-EK/15 15 (590“)
601-938
HV20-EK/5
Flat electrode with replaceable rubber
tongue: Pore testing of paint coatings.
Circular ring electrodes: Pore testing of
exterior pipe walls. The circular ring electrodes swing open for easy placement
around a pipe.
Rotating electrodes: Pore testing of interior pipe walls.
Up to an inside diameter of 125, the rotating electrodes look like bottlebrushes.
The brush bristles in the center are made
of fine bronze spring wire; the nylon bris-
tles in the front and back help to center
the brush in the pipe.
Tests on the inside of pipes up to a length
of 12 m (47“) are possible using suitable
rod systems. Rod pieces coated with synthetic material are combined to the desired
lengths. Inserting centering devices prevents sagging of the rod. The rod system
together with the inserted centering devices is also used for the voltage supply of
the rotating electrode.
Selection table for flat, sweeper, circular ring and roller electrodes
Test head cable
Length [m]
Sweeper electrodes: Pore testing of
large-area enamel, rubber and synthetic
coatings.
Roller electrode: Pore testing of foils.
Ground connection cable
Type
Suitable electrodes are available for
every application. The desired electrode is
simply screwed onto the test head.
Flat electrodes
Order no.
Weight [g]
Dimensions [mm]
Remarks
ZH2a
600-690
≈ 180
80 x 140 (3.2 x 5.5“) with replaceable rubber trimming
ZH2b
600-692
≈ 180
80 x 250 (3.2 x 9.8“) with replaceable rubber trimming, can be pivoted and
secured on all sides using a ball joint
Order no.
Weight [g]
Length [m]
Order no.
1.5 (59“)
601-940
HV20-AK/5
15 (196“)
601-960
Sweeper electrodes
HV20-AK/10
10 (394“)
601-939
ZH6a
600-695
≈ 200
150 (5.9“)
fan-like arrangement of trimming
ZH6b
600-696
≈ 200
250 (9.8“)
fan-like arrangement of trimming
ZH6c
600-697
≈ 200
300 (11.8“)
comb-like wire trimming, can be pivoted and secured
on all sides using a ball joint
Test heads for HV20 and HV20D
Depending on the application, the desired electrode can be screwed onto the test
head.
Weight [g]
Pipe ID [mm]
Type
Test voltage
Order no.
ZH7a
600-736
200
108 (4.3“)
Test head HV3PK
0.3 ... 3 kV
601-935
ZH7b
600-737
220
133 (5.2“)
Test head HV20PK
2.5 ... 25 kV
601-934
ZH7c
600-738
250
159 (6.3“)
ZH7d
600-739
300
220 (8.7“)
ZH7e
600-740
400
273 (10.7“)
ZH7f
600-741
600
324 (12.8.)
Roller electrode
Order no.
Weight [g]
Oper. width [mm]
ZH10a
603-118
406.6
150 (5.9“)
Please find the electrode selection and the respective accessories on the subsequent
pages.
Circ. ring electrodes Order no.
Dimensions [mm]
Remarks
Remarks
Remarks
®
Technical Data, Content of Shipment, Order Information
Electrodes, Order Information
Technical Data
Standard Content of Shipment
Electrodes for HV20 and HV20D
Voltage supply/charge voltage for
installed battery (12 VDC):
220 VAC / 50 ... 60 Hz
The standard shipment of the POROSCOPE® HV20 includes a protective case
with sufficient room for the instrument,
test cable, ground connecting cable, test
head and one to two electrodes. Also
included with the standard shipment is a
carrying bag for mobile operation. The
carrying bag is a hard shell housing made
of impact-resistant synthetic material.
Battery operation:
about 2 h continuous operation
Battery monitoring:
green LED on the test instrument lights,
when the battery voltage is no longer
sufficient to maintain the set test voltage
a
d
Test voltage
(continuously adjustable range):
Test head HV3PK: 0.3 ... 3 kVDC
Test head HV20PK: 2.5 ... 25 kVDC
Dimensions [mm]
Test instruments:
14 x 70 x 220 (0.55“ x 2.8“ x 8.7“)
Test heads: length: 360 (14.2“) ;
max. ø 114 (4.5“)
Weight:
Test instruments: 2 kg
Test heads: 0.8 kg
a
c
Test instruments
Type
Description
Order no.
POROSCOPE® HV20
Portable direct current pore test instrument with continuously adjustable test
voltage.
601-933
POROSCOPE® HV20D
Portable direct current pore test instrument with continuously adjustable test
voltage. Specifically designed for testing
materials that are easily charged electrostatically.
602-704
Pore indication:
acoustical: Alarm signal at test head
optical: red LED at test head and
instrument
Pore detection sensitivity:
detection threshold settable between
20 and 50% voltage drop
Test voltage monitoring:
green LED; extinguishes when voltage
falls by more than 5% below nominal
value
Environmental conditions
during operation:
0 ... +40 ºC (32 ... +104 ºF) and
0 ... 60 % RH, no condensation
on test surface
Storage temperature:
0 ... +60 ºC (32 ... +140 ºF)
Standards:
Instrument safety: VDE 0411/1,
pasture fence ordinance
Test:
DIN 55670, DIN 28055-2, DIN 4753-3
Overview of the various electrodes.
a) Sweeper electrode b) Flat electrode c) Roller electrode d) Rotating electrodes for tests inside pipes e) Circular ring electrode for tests on the outside walls of pipes
Ordering Information HV20 and HV20D
Test voltage display:
LCD
Test voltage display error:
<5%
e
b
with ground clip to ground the carrier
material of the test specimen.
Connecting cable between test instrument and test head.
Order no.
Type
5 (196“)
601-936
HV20-AK/1
HV20-EK/10 10 (394“)
601-937
HV20-EK/15 15 (590“)
601-938
HV20-EK/5
Flat electrode with replaceable rubber
tongue: Pore testing of paint coatings.
Circular ring electrodes: Pore testing of
exterior pipe walls. The circular ring electrodes swing open for easy placement
around a pipe.
Rotating electrodes: Pore testing of interior pipe walls.
Up to an inside diameter of 125, the rotating electrodes look like bottlebrushes.
The brush bristles in the center are made
of fine bronze spring wire; the nylon bris-
tles in the front and back help to center
the brush in the pipe.
Tests on the inside of pipes up to a length
of 12 m (47“) are possible using suitable
rod systems. Rod pieces coated with synthetic material are combined to the desired
lengths. Inserting centering devices prevents sagging of the rod. The rod system
together with the inserted centering devices is also used for the voltage supply of
the rotating electrode.
Selection table for flat, sweeper, circular ring and roller electrodes
Test head cable
Length [m]
Sweeper electrodes: Pore testing of
large-area enamel, rubber and synthetic
coatings.
Roller electrode: Pore testing of foils.
Ground connection cable
Type
Suitable electrodes are available for
every application. The desired electrode is
simply screwed onto the test head.
Flat electrodes
Order no.
Weight [g]
Dimensions [mm]
Remarks
ZH2a
600-690
≈ 180
80 x 140 (3.2 x 5.5“) with replaceable rubber trimming
ZH2b
600-692
≈ 180
80 x 250 (3.2 x 9.8“) with replaceable rubber trimming, can be pivoted and
secured on all sides using a ball joint
Order no.
Weight [g]
Length [m]
Order no.
1.5 (59“)
601-940
HV20-AK/5
15 (590“)
601-960
Sweeper electrodes
HV20-AK/10
10 (394“)
601-939
ZH6a
600-695
≈ 200
150 (5.9“)
fan-like arrangement of trimming
ZH6b
600-696
≈ 200
250 (9.8“)
fan-like arrangement of trimming
ZH6c
600-697
≈ 200
300 (11.8“)
comb-like wire trimming, can be pivoted and secured
on all sides using a ball joint
Test heads for HV20 and HV20D
Depending on the application, the desired electrode can be screwed onto the test
head.
Weight [g]
Pipe ID [mm]
Type
Test voltage
Order no.
ZH7a
600-736
200
108 (4.3“)
Test head HV3PK
0.3 ... 3 kV
601-935
ZH7b
600-737
220
133 (5.2“)
Test head HV20PK
2.5 ... 25 kV
601-934
ZH7c
600-738
250
159 (6.3“)
ZH7d
600-739
300
220 (8.7“)
ZH7e
600-740
400
273 (10.7“)
ZH7f
600-741
600
324 (12.8.)
Roller electrode
Order no.
Weight [g]
Oper. width [mm]
ZH10a
603-118
406.6
150 (5.9“)
Please find the electrode selection and the respective accessories on the subsequent
pages.
Circ. ring electrodes Order no.
Dimensions [mm]
Remarks
Remarks
Remarks
®
Rotating Elecrodes, Selection Table
Options, Order Example
Selection table for rotating electrodes and thread reducers
Options for HV20 and HV20D
Pipe
Rotating electrode
Thread reducer
ø inside [mm]
Type
Order no. Weight [g]
8 (0.31“)
ZH3y
600-713
9 (0.35“)
10 (0.39“)
ZH3z
8
600-714
Type
Order no. Weight [g]
M8/M4
600-723
50
11-12 (0.43-0.47“)
13-14 (0.51-0.55“)
15-16 (0.59-0.63“)
18-20 (0.71-0.79“)
ZH3a
600-699
10
ZH3b
600-700
30
ZH3c
600-701
40
ZH3d
600-702
50
22-25 (0.87-0.98“)
28-30 (1.10-1.18“)
33-40 (1.30-1.57“)
50-65 (1.97-2.56“)
M8/M5
600-721
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Type
Order no.
Description
Acoustical signal generator HV20
602-219
External acoustical signal generator. Can be connected to test instrument or
distribution box HV20. Length of connecting cable: 5 m (196.85“).
Pulse counter HV20
602-275
6-digit pore counter. Can be connected to test instrument or distribution box
HV20. Length of connecting cable: 1 m (39.37“).
External start switch HV20
602-369
External On/Off slide switch for the high voltage. Can be connected to test
instrument or distribution box HV20. Length of connecting cable:
10 m (393.7“).
Distribution box HV20
602-238
For simultaneous connection of the acoustical signal generator HV20, the
pulse counter HV20 and the external start switch HV20 as well as other external components for display, etc. of the pore information. Can be connected to
the test instrument. Length of the connecting cable: 0.2 m (7.87“).
Additional grounding
POROSCOPE® HV20
602-554
Metallic wrist band to be clipped to the test head for additional grounding.
Prevents electrostatic charging of the operator, especially when working with
gloves or when working on a floor that can easily become electrostatically
charged.
80 (3.1“)
ZH3e1 600-703
60
100 (3.94“)
ZH3e2 600-704
100
125 (4.92“)
ZH3f1
600-705
220
150 (5.91“)
ZH3f2
600-706
350
200 (7.87“)
ZH3g
600-707
1300
250 (9.84“)
ZH3h
600-708
1600
Test instrument POROSCOPE HV20
601-933
Ground connection cable HV20-EK/15
601-938
300 (11.81“)
ZH3i
600-709
1800
Test head HV20PK
601-934
Sweeper electrode ZH6b
600-696
350 (13.78“)
ZH3k
600-710
2000
Ordering Examples
M8/M12
600-722
Example 1: Test system for testing enamel coatings
Order no.
100
®
Test head cable HV20-AK/1
601-940
Order no.
®
Additional grounding POROSCOPE HV20
602-554
Selection table for rods and centering devices
Pipe
ø inside [mm]
Rod system
Type
Order no. Weight [g]
8 (0.31“)
9 (0.35“)
Length [mm]
ZH8c
600-717
30
250 (9.84“)
ZH8d
600-718
60
500 (19.69“)
ZH8e
600-719
120
1000 (39.37“)
Centering device
Type
Order no. Weight [g]
-
-
ZH4z1
600-734
ZH4z2
600-735
13-14 (0.51-0.55“)
ZH4a1
600-724
15-16 (0.59-0.63“)
ZH4a2
600-725
18-20 (0.71-0.79“)
ZH4b1
22-25 (0.87-0.98“)
10 (0.39“)
-
ID [mm]
9-10 (0.35-0.39“)
Example 2: Test system for testing interior pipe walls
Order no.
Order no.
Test instrument POROSCOPE® HV20
601-933
Ground connection cable HV20-EK/15
601-938
Test head HV20PK
601-934
Rod system ZH8b
600-760
Test head cable HV20-AK/1
601-940
Rod system ZH8b
600-760
11-12 (0.43-0.47“)
Rotating electrode ZH3e1
600-703
Centering device ZH4e
600-731
5
13-14 (0.51-0.55“)
Thread reducer M8/M12
600-722
Elastic spacer ZH9
600-720
6
15-16 (0.59-0.63“)
600-726
8
18-20 (0.71-0.79“)
ZH4b2
600-727
11
22-25 (0.87-0.98“)
28-30 (1.10-1.18“)
ZH4c1
600-728
15
28-30 (1.10-1.18“)
33-40 (1.30-1.57“)
ZH4c2
600-729
20
33-40 (1.30-1.57“)
50-65 (1.97-2.56“)
ZH4d
600-730
30
50-65 (1.97-2.56“)
ZH4e
600-731
260
80-100 (3.1-3.94“)
ZH4f
600-732
320
125-150 (4.92-5.91“)
11-12 (0.43-0.47“)
80 (3.1“)
100 (3.94“)
ZH8a
600-715
250
500 (19.69“)
ZH8b
600-716
450
1000 (39.37“)
125 (4.92“)
150 (5.91“)
3
Pipe ID < 13 mm
Rotating electrode
ZH3y, ZH3z
Rod system
ZH8c, d, e
Centering
device
ZH4z1, 2
Rod system
ZH8c, d, e
Thread
reducer
M8/M4
Elastic
spacer
ZH9
Test head
HV3PK,
HV20PK
Pipe ID 13 mm
200 (7.87“)
250 (9.84“)
ZH4g
300 (11.81“)
600-733
400
200-350 (7.87-13.78“)
350 (13.78“)
Elastic spacer suitable for all test head types
Type
Order no.
Weight [g]
Length [mm]
ZH9
600-720
145
160 (6.3“)
Description
Avoids tilting when inserting into greater pipe depths
Rotating
electrode
ZH3a, ..., k
Thread
reducer
M8/M5
M8/M12
Rod system
ZH8a, b
Centering
device
ZH4za1, ..., 9
Rod system
ZH8a, b
Elastic
spacer
ZH9
Test head
HV3PK,
HV20PK
®
Rotating Elecrodes, Selection Table
Options, Order Example
Selection table for rotating electrodes and thread reducers
Options for HV20 and HV20D
Pipe
Rotating electrode
Thread reducer
ø inside [mm]
Type
Order no. Weight [g]
8 (0.31“)
ZH3y
600-713
9 (0.35“)
10 (0.39“)
ZH3z
8
600-714
Type
Order no. Weight [g]
M8/M4
600-723
50
11-12 (0.43-0.47“)
13-14 (0.51-0.55“)
15-16 (0.59-0.63“)
18-20 (0.71-0.79“)
ZH3a
600-699
10
ZH3b
600-700
30
ZH3c
600-701
40
ZH3d
600-702
50
22-25 (0.87-0.98“)
28-30 (1.10-1.18“)
33-40 (1.30-1.57“)
50-65 (1.97-2.56“)
M8/M5
600-721
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Type
Order no.
Description
Acoustical signal generator HV20
602-219
External acoustical signal generator. Can be connected to test instrument or
distribution box HV20. Length of connecting cable: 5 m (196.85“).
Pulse counter HV20
602-275
6-digit pore counter. Can be connected to test instrument or distribution box
HV20. Length of connecting cable: 1 m (39.37“).
External start switch HV20
602-369
External On/Off slide switch for the high voltage. Can be connected to test
instrument or distribution box HV20. Length of connecting cable:
10 m (393.7“).
Distribution box HV20
602-238
For simultaneous connection of the acoustical signal generator HV20, the
pulse counter HV20 and the external start switch HV20 as well as other external components for display, etc. of the pore information. Can be connected to
the test instrument. Length of the connecting cable: 0.2 m (7.87“).
Additional grounding
POROSCOPE® HV20
602-554
Metallic wrist band to be clipped to the test head for additional grounding.
Prevents electrostatic charging of the operator, especially when working with
gloves or when working on a floor that can easily become electrostatically
charged.
80 (3.1“)
ZH3e1 600-703
60
100 (3.94“)
ZH3e2 600-704
100
125 (4.92“)
ZH3f1
600-705
220
150 (5.91“)
ZH3f2
600-706
350
200 (7.87“)
ZH3g
600-707
1300
250 (9.84“)
ZH3h
600-708
1600
Test instrument POROSCOPE HV20
601-933
Ground connection cable HV20-EK/15
601-938
300 (11.81“)
ZH3i
600-709
1800
Test head HV20PK
601-934
Sweeper electrode ZH6b
600-696
350 (13.78“)
ZH3k
600-710
2000
Ordering Examples
M8/M12
600-722
Example 1: Test system for testing enamel coatings
Order no.
100
®
Test head cable HV20-AK/1
601-940
Order no.
®
Additional grounding POROSCOPE HV20
602-554
Selection table for rods and centering devices
Pipe
ø inside [mm]
Rod system
Type
Order no. Weight [g]
8 (0.31“)
9 (0.35“)
Length [mm]
ZH8c
600-717
30
250 (9.84“)
ZH8d
600-718
60
500 (19.69“)
ZH8e
600-719
120
1000 (39.37“)
Centering device
Type
Order no. Weight [g]
-
-
ZH4z1
600-734
ZH4z2
600-735
13-14 (0.51-0.55“)
ZH4a1
600-724
15-16 (0.59-0.63“)
ZH4a2
600-725
18-20 (0.71-0.79“)
ZH4b1
22-25 (0.87-0.98“)
10 (0.39“)
-
ID [mm]
9-10 (0.35-0.39“)
Example 2: Test system for testing interior pipe walls
Order no.
Order no.
Test instrument POROSCOPE® HV20
601-933
Ground connection cable HV20-EK/15
601-938
Test head HV20PK
601-934
Rod system ZH8b
600-760
Test head cable HV20-AK/1
601-940
Rod system ZH8b
600-760
11-12 (0.43-0.47“)
Rotating electrode ZH3e1
600-703
Centering device ZH4e
600-731
5
13-14 (0.51-0.55“)
Thread reducer M8/M12
600-722
Elastic spacer ZH9
600-720
6
15-16 (0.59-0.63“)
600-726
8
18-20 (0.71-0.79“)
ZH4b2
600-727
11
22-25 (0.87-0.98“)
28-30 (1.10-1.18“)
ZH4c1
600-728
15
28-30 (1.10-1.18“)
33-40 (1.30-1.57“)
ZH4c2
600-729
20
33-40 (1.30-1.57“)
50-65 (1.97-2.56“)
ZH4d
600-730
30
50-65 (1.97-2.56“)
ZH4e
600-731
260
80-100 (3.1-3.94“)
ZH4f
600-732
320
125-150 (4.92-5.91“)
11-12 (0.43-0.47“)
80 (3.1“)
100 (3.94“)
ZH8a
600-715
250
500 (19.69“)
ZH8b
600-716
450
1000 (39.37“)
125 (4.92“)
150 (5.91“)
3
Pipe ID < 13 mm
Rotating electrode
ZH3y, ZH3z
Rod system
ZH8c, d, e
Centering
device
ZH4z1, 2
Rod system
ZH8c, d, e
Thread
reducer
M8/M4
Elastic
spacer
ZH9
Test head
HV3PK,
HV20PK
Pipe ID 13 mm
200 (7.87“)
250 (9.84“)
ZH4g
300 (11.81“)
600-733
400
200-350 (7.87-13.78“)
350 (13.78“)
Elastic spacer suitable for all test head types
Type
Order no.
Weight [g]
Length [mm]
ZH9
600-720
145
160 (6.3“)
Description
Avoids tilting when inserting into greater pipe depths
Rotating
electrode
ZH3a, ..., k
Thread
reducer
M8/M5
M8/M12
Rod system
ZH8a, b
Centering
device
ZH4za1, ..., 9
Rod system
ZH8a, b
Elastic
spacer
ZH9
Test head
HV3PK,
HV20PK
®
®
Active Around the World
®
FISCHERSCOPE ® X-Ray to measure the coating
thickness according to the X-ray fluorescence
method.
Micro hardness measurement unit FISCHERSCOPE® H100 to determine the universal hardness
HU of thin coatings and foils.
DUALSCOPE ® MP40 with probe ED10 to measure
coating thickness on ferromagnetic, as well as nonferromagnetic materials with automatic recognition
and selection of the measurement method.
The high quality standard of FISCHER
instruments is the result of our efforts to
provide the very best instrumentation to
our customers.
FISCHER is a reliable and competent
partner, offering expert advice, extensive
service, and training seminars.
Today, FISCHER instruments are used
successfully in all technological fields of
industry and research.
© Helmut Fischer GmbH + Co
Subjects to changes
Printed in Germany
Helmut Fischer GmbH + Co
71069 Sindelfingen, Germany
Tel. (+49) 70 31 303-0, Fax (+49) 70 31 303-79
Internet: http://www.Helmut-Fischer.com
Fischer Instrumentation (G.B.) Ltd.
Lymington/Hampshire SO41 8JD, England
Tel. (+44) 1590-683663, Fax (+44) 1590-684110
Internet: http://www.fischergb.co.uk
Fischer Technology, Inc.
Windsor, Ct. 06095, USA
Tel. 860 683-0781, Fax 860 688-8496
Internet: http://www.fischer-technology.com
Sole Agent for Helmut Fischer GmbH + Co, Germany:
Fischer Instruments, S.A.
08018 Barcelona, Spain
Tel. (+34) 93 309 79 16, Fax (+34) 93 485 05 94
E-Mail: spain@helmutfischer.com
Fischer Instrumentation (S) Pte Ltd.
Singapore 118529, Singapore
Tel. (+65) 276 67 76, Fax (+65) 276 76 67
E-Mail: singapore@helmutfischer.com
Nantong Fischer Instrumentation Ltd.
Shanghai 200437, P.R.C., China
Tel. (+86) 21 6555 7455, Fax (+86) 21 6555 2441
E-Mail: china@helmutfischer.com
Helmut Fischer Instrumentation (M) Sdn Bhd
11900 Penang, Malaysia
Tel. (+60) 4646 5977, Fax (+60) 4646 5851
E-Mail: singapore@helmutfischer.com
Branch Offices of Helmut Fischer AG, Switzerland:
Fischer Instrumentation Electronique
78180 Montigny le Bretonneux, France
Tel. (+33) (0) 1 30 58 00 58, Fax (+33) (0) 1 34 60 10 70
E-Mail: france@helmutfischer.com
Helmut Fischer S.R.L., Tecnica di Misura
20128 Milano, Italy
Tel. (+39) 02 255 26 26, Fax (+39) 02 257 00 39
E-Mail: italy@helmutfischer.com
Helmut Fischer Meettechniek B.V.
5627 GB Eindhoven, The Netherlands
Tel. (+31) 40 248 22 55, Fax (+31) 40 242 88 85
E-Mail: netherlands@helmutfischer.com
Fischer Instruments K.K.
Saitama-ken 340, Japan
Tel. (+81) 489 32 3621, Fax (+81) 489 32 3618
E-Mail: japan@helmutfischer.com
Fischer Instrumentation (Far East) Ltd.
Kwai Chung, N.T., Hong Kong
Tel. (+852) 24 20 11 00, Fax (+852) 24 87 02 18
E-Mail: hongkong@helmutfischer.com
932-003
ISO 9001
SQS Registration
No. 11899
Valid for Helmut Fischer AG and Branch Offices
Search for pores and defects in linings and
coatings made of enamel, lacquer, rubber and
bitumen as well as in containers made of GFK
and other synthetics.
05/00
03/00
Helmut Fischer Elektronik und Messtechnik AG
CH-6331 Hünenberg, Switzerland
Tel. (+41) 41 785 08 00, Fax (+41) 41 785 08 01
E-Mail: switzerland@helmutfischer.com
Porosity Test Using High Voltage
to the X-ray fluorescent,
Beta Backscatter,
magnetic induction,
eddy current and
coulometric methods.
Additionally, the
program includes
instruments for
measuring microhardness, ferrite
content, and
porosity testing.
FISCHER is active
around the world.
Instruments manufactured by our company are used in many
countries. FISCHER
has subsidiaries in eight
different countries.
FISCHER is a leading
multi-national company
in the field of electronic
coating thickness
measurement and
materials testing
instruments. The
company is able to
recommend the
best coating thickness measuring
instrument for any
application, due
to the company’s
extensive experience
in this field. The wide
range of instruments
includes models for
coating thickness measurements according
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