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P R E C I S I O N I N S T R U M E N T A T I O N
Operator's Handbook
for
Compact
High Voltage
D
C15 & DC30
POROSITY (HOLIDAY) DETECTORS
Complies with the requirements of:
Australian Standard AS3894.1-2002,
ASTM G62-87(1998), NACE RP0274-98,
NACE RP0490-2001, NACE RPO188-99, ASTM D4787-93(1999),
JIS G-3491, JIS G-3492, ANSI/AWWA C214-89,
ANSI/AWWA C213-94 and ISO 2746:1998
CE Marked PCWI Compact Detectors comply with the requirements
of EMC Directives 89/336/EEC EMC and its amending directives.
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Summary of Contents for PCWI Compact DC12
- Page 1 Australian Standard AS3894.1-2002, ASTM G62-87(1998), NACE RP0274-98, NACE RP0490-2001, NACE RPO188-99, ASTM D4787-93(1999), JIS G-3491, JIS G-3492, ANSI/AWWA C214-89, ANSI/AWWA C213-94 and ISO 2746:1998 CE Marked PCWI Compact Detectors comply with the requirements of EMC Directives 89/336/EEC EMC and its amending directives.
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Page 2: Table Of Contents
Fax: Conformance: This detector has been tested at a series of voltages from 0 to 60,000 Volts against a PCWI Certified Meter and High Voltage Probe, Report Number 205928 or Pulse Crest Meter Report No VM-0085-00 and complies with PCWI Standards of Manufacture. - Page 3 To support the unit, PCWI maintain a comprehensive range of Electrodes (probes) - extending the versatility of the Compact from large to small and from accessible to inaccessible surfaces. PCWI, in a continuing desire to achieve the maximum in corrosion detection competence, welcomes user enquiries and recommendations.
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Page 4: Safety Precautions
1.0 SAFETY PRECAUTIONS: All hand-held high voltage test equipment should be operated by responsible, trained and authorised personnel. The unit must be earthed to both the item under test and to ground. CAUTION The Detector output can be up to 35,000 volts. Should the operator accidentally make contact with the test electrode, they may experience a mild shock or zap, and in order to avoid this possibility, the wearing of rubber gloves is recommended. -
Page 5: Operation
Coating Thickness Range Applied coats should be cured, thickness tested, visually inspected and accepted – before high voltage porosity testing is carried out. Coating thickness should be above 150µm; coatings below this thickness should be tested with a wet sponge unit. 2.0 OPERATION Connect the probe and earth leads to the unit. -
Page 6: Specifications
Earthing Where the item to be tested is not earthed to ground, a ground spike must be attached. The unit should always be switched off before removing and repositioning the earth lead. After the earth is repositioned, the probe should always be flashed on the substrate to prove a good contact has been made. -
Page 7: Control Panel Layout
4.0 CONTROL PANEL LAYOUT 2 9 . 0 0 2 9 . 0 0 ALARM Voltage Batt Batt Sensitivity High Voltage Porosity Detector Test 1 LCD display (including battery condition indicator) 2 Voltage control (10 turn) 3 Visual alarm indicates when fault is found FUSE 4 On switch 1.6A... -
Page 8: Voltage Recommendations
5.0 Voltage Recommendations International Standards NACE RP0188-99 derived table Table 1 below is derived from NACE standards and should be used as a guide only. New Protective Coatings on Conductive Substrates Table 1. Suggested for High Voltage Spark Testing Suggested Total Dry Film Thickness Inspection (µm) - Page 9 International Standards NACE RP0490-2001 and RP0274-98 derived tables Tables 2 & 3 below are derived from NACE standards and should be used as a guide only. Thin Film Pipeline General Pipeline Coatings (FBE) Coatings Table 2. kV Values from Table 3. kV Values from NACE RP0274-98 NACE RP0490-2001 kiloVolts...
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Page 10: Troubleshooting
6.0 TROUBLESHOOTING In order to ensure that your Compact Porosity Detector is operating to specification, the Detector handle and lead should be checked prior to use. Use the following procedure: Unscrew the neon holder from the handle. Using a multi-meter, complete the circuit and check the resistance at both the Ê... - Page 11 Symptom Cause Solution Flat battery Recharge battery No Display No Power - fuse not fitted Fit fuse Display shows -1 Voltage higher than display capacity Decrease voltage Display erratically Display drops to -1 when fault found Normal operation shows -1 Slightly conductive, damp or salty Wash and clean the surface surface...
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Page 12: Optional Accessories
7.0 OPTIONAL DETECTOR ACCESSORIES Crest Meters Certification & 50mm (2in) to 600mm (24in) wide flat brushes. 25mm (1in) to 500mm (20in) Spiral wound and Disc Internal circular pipeline brushes 25mm (1in) to 500mm (20in) External circular pipeline brushes Aug 2002 os - Compact DC15 and DC30 POROSITY (HOLIDAY) DETECTORS... - Page 13 60mm, 125mm, 200mm, 450mm connectors for flat or external pipeline brushes. Fan Brushes 450mm covered probe extensions Spare slip-out power packs. Earth lead with clamp. 8m trailing Earth lead (1m plastic encased). Spare neon light holders and neons. 50mm (2in) to 1210mm (48in) Coils complete with ball bearing ends.
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Page 14: Warranty
This warranty does not cover any service that is needed after an accident, alterations, misuse, fire or floods. This warranty is the only one given by PCWI and no one has the authority to change, or add to, the obligations and liabilities listed in it. - Page 15 9.0 SERVICE AND MAINTENANCE AUTHORISED SERVICE REPRESENTATIVE To enable speedy “return to service” whether under warranty or otherwise, PCWI have appointed your distributor as a service centre and have provided all relevant information and recommended parts to be carried to assist distributor’s technical staff carry out this essential part of the PCWI customer service.
- Page 16 NATA registered laboratory in metrology PCWI’s in-house laboratory can support testing for a range of instruments enabling Certification Traceable to National Standards. Quality systems certified to ISO9002 PCWI’s Quality Management System is certified to ISO9002.
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