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Page
3
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CORROSION
MITIGATION
INSTRUMENTATION
P.
O.
B
OX
1667
S
AN
B
ERNARDINO
,
C
A
92402
T
EL
:
(909)
890-0700
F
AX
:
(909)
890-0736
P
RODUCT
I
NSTRUCTIONS
PRE-ELECTRICAL TEST PROCEDURES
The protective coatings should be dry and free of all contamination prior to electrical holiday testing. Proper
curing and drying time of the protective coating must be established prior to conducting electrical holiday
testing.
Note
: Solvents retained in the protective coating film can cause erroneous indications (false holidays)
during electrical testing.
The dry film thickness should not exceed 20 mils when electrical holiday testing is done with the low voltage
Model M/2Holiday Detector. Film thickness should be determined with a non-destructive dry film thickness
gauge to make sure limits are not exceeded.
Special Note: Ordinary tap water will generally suffice to dampen the sponge electrode, provided
the protective coating thickness does not exceed 10 mils. The factory recommended practice is
to use a wetting agent at all times, regardless of coating thickness up to 20 mils. The low voltage
holiday detector is not recommended for coatings greater than 20 mils of thickness.
Check battery voltage. This can be done by shorting the wet sponge with the bare end of the ground cable
of the holiday detector. If a steady, level audible signal is heard, the battery voltage is OK. If the audible
signal starts to attenuate while testing, REPLACE battery. Note: A battery output voltage drop of over 10%
also indicates weak battery.
HOLIDAY DETECTOR ASSEMBLY
Assemble the Holiday Detector by first connecting the ground cable to the handle. Insert the ground cable
connector into the handle, and then rotate one quarter turn counter clockwise to lock. Connect the wand
handle to the front (nose) of the instrument and screw down until firmly seated.
Attach the sponge bracket (aluminum piece), sponge, sponge holder (plastic piece) and the knob with
threaded bolt through all and screw down on the wand end. Saturate the sponge in a wetting solution.
CALIBRATION
Factory calibration on Model M/2 Holiday Detectors is for the voltages and resistances of each of the four
(4) output settings. All voltages are calibrated to a tolerance of +/- 5%.
