TELEMAGNETICA 184/6KV User manual

Holiday Detector mod. 184/6KV
www.telemagnetica.com
Telemagnetica S.r.l.
Via Teocrito, 36 - 20128 Milan - Italy
Tel: [phone] - Fax: [phone]
e-mail: [email protected] -http: \\ www.telemagnetica.com
January 2013 BR-184-13-6KV-ENG-00 Pag. 1 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
Generals Mod. 184
The Holiday Detector mod. 184 is used to check the integrity of insulating coatings
applied to metallic structures.
Technical Data
- Power
60VA
- Max pulse voltage on 900pF
6kV
- Pulse duration
10 ÷ 12µs.
- Pulse repetition frequency
20 ÷ 25 Hz.
- Crest kilovoltmeter range
10 ÷ 10000V
- Measurement error
±5%
- Leak signal
Visual alarm by red lamp
Acoustic with Piezoceramic buzzer, 60dB at 2000Hz with continuous
sensitivity regulation and signal extension of 1 second
- Unit weight
25 Kg.
- Unit Dimensions
800 x 600 x 300 mm
January 2013
BR-184-13-6KV-ENG-00
Pag. 2 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
Instruction for use
a) Holiday Detector Mod. 184 has been designed for the inspection, on the
production line, of the piping insulating coating.
b) The inspection is made connecting the grounding clamp to the back
bare end of the pipe section, before the bare front of pipe reaches the
inspection point that is made by a conductive brush connected to the
hot point that feels the whole coated pipe surface, discovering any
possible leaks in coating.
c) The unit generates High Voltage pulse discharges (up to 6000V per 10
microseconds) with a repetition frequency of about 20Hz (1 pulse every
50 milliseconds). That allows to inspect the whole coating surface by
means of thin brushes, at normal pipe translation speed in the
production line, minimizing operator risks.
d) Main switch (1) connects the unit to 230Vac – 50Hz network (switched-
on green lamp (7)), activating HV output and the Crest Voltmeter (3)
allowing real time reading of effectively present pulse voltage on
insulating coating independently from the load represented by it (mostly
capacitive).
e) Change-over switch (4) allows to select the voltage range most suitable
to the kind of coating under inspection, while the potentiometer (5)
allows the voltage fine adjustment between the interval of two steps.
f) Leak presence is noticed by the intervention of the piezoelectric by an
acoustic signal and from the red lamp lighting (6); in addition the leak
signal is also available for free double change-over operation for remote
signal transmission or ausiliar operations.
g) The intervention sensitivity of acoustic piezoelectric alarm is adjusted by
the potentiometer (2), working on the achievement of the alarm
intervention just in the moment of the discharge towards leak.
During the installation of the unit, it is important to note that the
load is mostly of
capacitive kind with
a pole connected to ground, therefore, in order to avoid as useless as
undesired loads, it will be useful to connect as short as possible the hot point to the brush,
separating from the
ground or from grounded metallic structures, using the special HV
cable supplied with the unit.
January 2013 BR-184-13-6KV-ENG-00 Pag. 3 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
Safety
The unit feeded by 230Vac – 50Hz main, is used for the “on-line” inspection of different
kinds of coatings applied on metallic surfaces in the production sites.
The unit generates an output puls
e voltage of more than 6.000 V (max. value) with a
duration of some tens of microseconds and a repetition frequency of 20 ÷ 25 Hz.
Average current at max output voltage is around 200 ÷
500 microAmpere in the case of
accidental superficial contact (e.g.
. inspection brush that comes in contact with an human
body) while it can increase up to 5mA in case of sure contacts (100Ω).
The high Internal impedance of the
equivalent generator allows that operators safety is
expose to danger only if the below listed instructions are not followed:
1) Be sure that the
external ground terminal of the unit is connected to factory
grounding net, using a cable with a copper min. section of 16 sqmm
Pipe grounding cable must be connected to the same terminal.
The grounding network cable could instead be connected to the
unit internal
terminal(for equipontential reason only).
2) Make physically not accessible (to unauthorised personnel) the production zone
near the brush.
3) The operator charged to the ground cla
mp positioning must be provided with
properly insulated gloves and boots.
4) The unit cannot operate in areas classified with explosion risk.
Maintenance
Efficiency of insulators and H.V. cables used in the control system must be checked at
least on six-monthly basis.
The unit calibration is suggested at least on annually basis.
January 2013
BR-184-13-6KV-ENG-00
Pag. 4 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
Components list
P/N Description Qty
P-9059-000
Changeover switch 5922/E/1B/12/20A

(see DWG. PR-0765-004)
1
P-7263-008
Microswitch cod. NAT AZH 2041
1
P-7434-126
Main switch green M22

(see DWG. PR-0765-004)
1
P-7007-038
Green Led 230V 3W for M22 P-7434-126
1
P-7429-005
Wire potentiometer 10 k
Ω
25mm Ø

(see DWG. PR-0765-004)
1
P-7429-037
Wire potentiometer 100
Ω
10 turns Ø

(see DWG. PR- 0765-004)
1
GR-6192-012
Positive converter
1
A-9042-009
Trigger Detector
1
GR-1007-001
Dissipator group
1
GR-6200-003
Positive Crest Kilovoltmeter 10kV

(see DWG. PR- 0765-004)
1
GR-1006-004
Positive feeder group
1
GR-6194-003
HV coil group c/w high insulation cable
1
P-7422-030
Green lamp-holder

(see DWG. PR- 0765-004)
1
P-7422-029
Red lamp-holder

(see DWG. PR- 0765-004)
1
Conformity Declaration
We declare that the Holiday Detector Mod. 184 is complying with the following Standards:
EN 50081-2 (1993)
EN 50082-2 (1995)
EN 55011 (1990)
EN 61000-3-2 (1995)
EN 61000-3-3 (1995)
EN 61000-4-2 (1995)
EN 61000-4-4 (1995)
EN 61000-4-8 (1993)
ENV 50140 (1993)
ENV 50141 (1993)
ENV 50204 (1995)
Electromagnetic compatibility - Generic standard emission.
Part. 2: Industrial environment.
Electromagnetic compatibility - Generic immunity standard.
Part. 2: Industrial environment.
Limits and methods of measurement of radio disturbance characteristics of
industrial, scientific and medical (ISM) radio-frequency equipment.
Electromagnetic compatibility (EMC) – Part. 3: Limits.
Section 2: Limits for harmonic current emissions (equipment input current ≤
16 A per phase).
Electromagnetic compatibility (EMC) – Part. 3: Limits.
Section 3: Limitation of voltage fluctuations and flicker in low-voltage supply
systems for equipment with rated current ≤16 A.
Electromagnetic compatibility (EMC) – Part. 4: Testing and measurement
techniques
Section 2: Electrostatic discharge test – Basis EMC Publication.
Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques
Section 4: Electrical fast transient/burst immunity test – Basic EMC publication
Electromagnetic compatibility (EMC) – Part 4: Testing and measurement
techniques
Section 8: Power frequency magnetic field immunity test
Basic EMC Publication.
Electromagnetic compatibility - Basic immunity standard - Radiated radio-
frequency electromagnetic field - Immunity test.
Conducted disturbances induced by radio-frequency fields – Immunity test.
Radiated electromagnetic field from digital radio telephones - Immunity test.
As stated on the Test Report No. EMC 2999/96 and, therefore it complies with the EMC norms for the
CE marking.
January 2013 BR-184-13-6KV-ENG-00 Pag. 5 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
Attached drawings
PR-0765-004
FRONT VIEW
S-0409-006
BLOCK DIAGRAM
S-0372-001
H.V. OUTPUT WAVEFORM
S-0373-000
H.V. COIL AND TRIGGER WAVEFORMS
PR-1097-000
PIPE AND INSPECTION BRUSH CONNECTIONS
January 2013 BR-184-13-6KV-ENG-00 Pag. 6 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
PR-0765-004 - FRONT VIEW
January 2013 BR-184-13-6KV-ENG-00 Pag. 7 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
S-0409-006 - BLOCK DIAGRAM
S-0372-001-H.V. OUTPUT WAVEFORM
January 2013
BR-184-13-6KV-ENG-00
Pag. 8 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
S-0373-000-H.V. COIL AND TRIGGER WAVEFORMS
January 2013 BR-184-13-6KV-ENG-00 Pag. 9 of 10

Holiday Detector mod. 184-13-6KV
www.telemagnetica.com
PR-1097-000-PIPE AND INSPECTION BRUSH CONNECTIONS
January 2013 BR-184-13-6KV-ENG-00 Pag. 10 of 10