White’s Electronics Sierra Madre - Manual (Page 12)

12
to dry out when not in use. Remove the batteries
and leave the battery door open.
B. Dampness Failure can often be cured simply
by drying the instrument out in the above man-
ner. Dampness failure can cause varied symptoms,
everything from complete non-responsiveness to
instability or false-targeting.
3. M eter Indications can be affected by static electric-
ity. This static can get on the meter face and housing
and cause improper meter indications, inaccuracy, and
even total lock-up of the meter needle. Such static elec-
tricity usually comes from household or automobile
carpet, or clothing. When passing your finger past the
meter needle causes significant meter movement, static
electricity is the problem.
A. Meter Failure should be remedied by discharg-
ing any electrical field built up in the meter hous-
ing and meter face cover. Anti-static clothes dryer
sheets work well for this purpose, and can be pur-
chased inexpensively from the grocery store. Com-
puter stores have an antistatic spray which also
works well. With the clothes dryer sheets simply
wipe the black meter housing and meter face cover
thoroughly. Use several of the individual sheets.
With the antistatic spray, spray the meter housing
and face cover, wipe dry with a cotton cloth.
B. Once Static is Removed the meter should re-
turn to normal. Removing meter static electricity
may be necessary from time to time.
4. Repairs in the unlikely event your instrument
requires servicing, it should be referred to a trained
professional at an Authorized Whiteʼs Service Cen-
ter. Todayʼs models require specialized equipment
and training to service properly. All Whiteʼs Autho-
rized Service Centers have years of experience and
their work is guaranteed by the factory.
5. The Location of the Whiteʼs Authorized Service
Center for your area is enclosed (see page 14). If mis-
placed, telephone toll free 1-800-547-6911 for their
name and address. Please send the complete unit with
an explanation of the trouble.
Trouble Shooting
When trouble occurs with the use of a metal detector,
often a person can avoid unnecessary inconvenience by
reviewing the following tips.
1. False Signals or Instability can often be caused by
situations outside of the detector. For example electri-
cal interference from power lines, or other high power
transmitting devices. Often these devices can be identi-
fied, sometimes they can not.
A. Try the HIGH MINERAL MODE setting,
squeeze and release the TRIGGER and repeat the
AUTO GEB sequence.
B. Persistent false signals may require that you
try searching a different area, at least several miles
away. If you really want to search a high interfer-
ence area, try different times of the day or week.
Often such interference is only present at scheduled
times.
C. If not area related, start checking the com-
ponents of the detector. The battery pack should
be removed from the instrument and the contacts
inside the battery holder should be scratched clean
of any corrosion buildup, and the springs should
be stretched a little to assure a firm contact. The
contacts on the outside of the battery holder should
also be scratched clean of any corrosion. The bat-
tery contacts inside the instrument battery compart-
ment should be pulled slightly outward toward the
battery door so that they make a firm contact with
the battery. The instrument control box should be
checked with a different loop, either an accessory,
or a friendʼs loop off a similar model. Your Dealer
may also be able to assist you in checking the
instrument. Loop problems are most often due to
damaged cable, from snags on brush or blackberry
vines, or simple cable wear. Inspect the cable for
any visible signs of damage.
2. Moisture and Humidity, when extreme, can cause
problems with all electrical circuits. Most electronics
are only guaranteed to operate in up to 75% humidity,
which is minimal humidity in some areas. Although the
electrical circuitry of your instrument has been sealed
with a plastic coating, wetness can still cause failure,
particularly when the dampness is combined with salt,
as occurs in many beach environments.
A. Damp Environment Use should always be fol-
lowed by placing the detector in a warm dry place
Trouble Shooting