Tinker & Rasor APS Instruction sheet

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CORROSION MITIGATION INSTRUMENTATION
P. O. BOX 6890 SAN BERNARDINO,CA 92412 TEL:[phone] FAX:[phone]
PRODUCT INSTRUCTIONS
MODEL APS
HIGH VOLTAGE HOLIDAY DETECTOR
(STICK UNIT)
1. HOLIDAY DETECTOR FUNCTION
The Tinker & Rasor Model APS Holiday Detector is an all-purpose electrical inspection
instrument which maintains a given inspection voltage in spite of the electrical load on
the circuit. It is recommended for use on any pipe diameter as well as on flat surfaces
when such surfaces are coated with a highly electrical resistance material, and when
the surface beneath the coating is electrically conductive. The detector works equally
well on damp or dry surfaces, and is especially desirable where humid conditions
prevail.
2. INSTRUCTIONS FOR UNPACKING & INSPECTION
1) Open the shipping carton and make note of the various accessories.
Includes:
(1) Instrument
(2) Battery
(1) Battery Case
(1) Battery Charger (110v or 220v)
(1) Screwdriver
(1) Ground Cable (20’)
(1) Wand Handle (18”)
(1) Compax Connector (for use with Full Circle Spring Electrodes)
(1) Paddle, silicone-rubber, 4”
(1) Carrying case
(1) Electrode of Choice*
NOTE: Additional accessories may ship in separate packaging.
2) INSPECTION should be made upon receipt. If damage has occurred during
shipment, file a claim with the carrier immediately.
3) If it is necessary to contact your supplier or the manufacturer concerning
damaged or missing items, be sure to include the serial number, purchase
order number, and invoice number of the instrument in question.
* Instrument ships with electrode of choice. Electrode may be Full Circle Spring Electrode (up to 16” pipe diameter),
Half Circle Spring Electrode (up to 8” pipe diameter) or Silicone Rubber Electrode (up to 8” pipe diameter).
Wire Brush Electrodes, larger size electrodes and additional electrodes available at additional cost.
3. CHECK-OUT INSTRUCTIONS
•Remove all accessories from the shipping carton.

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CORROSION MITIGATION INSTRUMENTATION
P. O. BOX 6890 SAN BERNARDINO,CA 92412 TEL:[phone] FAX:[phone]
PRODUCT INSTRUCTIONS
•Connect high voltage wand handle to front of instrument and ground cable to
detector handle (insert and twist clockwise). Never connect or disconnect the
cable or wand when the instrument is turned on.
•Attach electrode to the high voltage wand handle assembly and apply to the
structure to be inspected. The electrode should always make intimate contact
with the surface under inspection.
•The Model APS Holiday Detector is now ready to turn on.
•Turn the instrument ON by holding the safety switch handle firmly against the
instrument handle. (Instrument handle has rubber grip), then pressing the “ON”
button.
NOTE: The instrument will turn OFF when the safety handle is released.
•Use push buttons to select the HIGH or LOW range. Remove the dust cover
with the supplied screwdriver, and adjust the voltage setting, using the digital
display for reference. The instrument must be ON for this operation.
•The instrument will “remember” the last HIGH or LOW and voltage setting
selected, after being turned OFF and then ON again.
•If holiday detection testing is to be done in a high noise environment, the
instrument audible alarm may be set to the LOUDER volume using the
appropriate push button found near the speaker on top of the unit. Similarly, to
lower the volume, push the LOUD button.
•The instrument is now ready to use.
4. OPERATING METHODS
A good ground return system for both the pipe and the detector will always provide the
best and most reliable inspection. The pipe to be inspected must be grounded from
the bare pipe to earth at some point along the pipe. If individual joints of the pipe are
to be inspected that are not electrically connected, each joint must be grounded.
The speed of the electrode's travel along the pipe should never be excessive, since
faulty inspection may result.
Occasional checks of the detector operation should be made, particularly if no
holidays are being found. This can be accomplished by testing for the spark and
signal at the edge of the coating where bare pipe exists or by touching the probe end
to the bare pipe and noting the length of the spark and the visual and audible signal

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CORROSION MITIGATION INSTRUMENTATION
P. O. BOX 6890 SAN BERNARDINO,CA 92412 TEL:[phone] FAX:[phone]
PRODUCT INSTRUCTIONS
effectiveness. If the visual and audible signal do not both occur when the spark
discharges from the electrode into a known holiday, the ground return (i.e. the path
between the metallic pipe and earth and the earth to the ground trail of the detector) is
of high resistance. In this case, a better ground is required and a direct connection
between the metal pipe and the ground wire may be necessary. This type of
grounding is extremely uncommon unless the soil is very dry (if using a grounding rod)
or the detectors output is low.
Correct voltage output for a given thickness of coating has long been a matter of
controversy. However, recent formulas have been suggested which may be used as a
guide for correct peak voltages on various coating thickness. The calculation is as
follows:
V =K √T
WHERE V =Peak voltage in volts.
T =Thickness of fusion bonded epoxy (FBE) coating in
mils
(not including outer wrappers).
K =Constant of 1,250 for coatings over 30 mils and 525 for
fusion bonded epoxy coatings under 30 mils.
NOTE: Formula taken from NACE International Standard RP0274, RP0490. These standards and other available for
free download to members at: www.nace.org
These formulas, when applied to a coating of 3/32” thickness and with a constant of
1,250, would indicate an applied voltage of 12,500 volts peak or a coating of 16 mil
thickness with a constant of 525 would indicate an applied voltage of 2,100 volts. A
common practice used in setting inspection voltages in the field is to adjust the output
voltage by visual observation. It is the general consensus that spark discharge at
least twice the thickness of the coating will give adequate inspection voltage and
compensate for any irregularity in coating thickness and grounding conditions. If this
practice is desired for determining inspection voltage, it should be done while the
electrode is in the normal operating position and under actual grounding conditions.
The formulas and suggestions for setting voltage are supplied as a guide, and are not
necessarily recommended by the manufacturer of this detector.
Consult the coating manufacturer for recommended voltage applications.
5. CHARGING THE BATTERY
The Model APS comes with two (2) batteries. The battery should be charged after
each use. The Model APS will indicate when the battery voltage is low, by a flashing or
flickering of the Green Power LED, instead of providing a steady glow.

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CORROSION MITIGATION INSTRUMENTATION
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PRODUCT INSTRUCTIONS
The battery charger included with the Model APS Holiday Detector operates on a 110v
AC power source. 220v AC power source battery charges are available at additional
charge. Check the packing list or invoice of your order to verify which battery charger
was included with your Model APS.
The battery charger has a special plug that is designed to fit into the connector on the
side of the battery, so that polarity of the connection is not an issue.
The battery charger has a RED LED on its side. This LED will glow RED while
charging the battery. The RED LED will begin BLINKING when the battery is fully
charged.
6. INSTRUMENT SERVICING INSTRUCTIONS
A. Cleaning: Keep the instrument clean and dry. Clean the instrument case
with a soft, damp cloth, then wipe dry. Do not use solvents such as lacquer
thinner, methyl ethyl keytone, etc.
KEEP ALL ELECTRICAL CONTACTS CLEAN
B. Voltage Output Checks
a. In case of LOW output voltage:
i. Check the LED indicator for the HIGH or LOW Range selector,
to ensure the instrument is in the correct Range.
ii. Check the display for voltage output. Voltage displayed is in
kilovolts. (22,000volts = 22.0 on display)
iii. Check green ON LED. If flashing, this indicated low battery
voltage.
b. In case of NO output voltage:
i. Check green ON LED. If flashing, this indicated low battery
voltage.
ii. Check for poor connection on battery terminals.
iii. Check ground cable and wand handle connections.
7. FACTORY REPAIRS
Holiday Detectors returned to the factory for repairs should be sent
TRANSPORTATION PREPAID. In most cases the detector can be repaired and
returned the same day it is received at the factory.
WHEN ORDERING PARTS FOR YOUR DETECTOR OR REQUESTING FURTHER INFORMATION
ALWAYS GIVE THE DETECTOR’S SERIAL NUMBER.
Mailing Address Shipping Address
Tinker&Rasor Tinker&Rasor
P.O. Box 6890 791 S. Waterman Ave.
San Bernardino, CA 92412 San Bernardino, CA 92408
Phone: [phone] Fax: [phone] fax
009-248