The ML-1 does not have a Low Battery Indicator, so an indication
of this condition is “screaming” or not working at all. If this is the
case, replace the batteries as explained below.
The ML-1M produces a “flashing” battery icon in the lower right
corner of the LCD when the batteries are getting low. You don’t
have to change batteries at this time; it is just an indication that
only about 5% of battery life is left. Just be sure to have a spare
set with you in the carrying case. Then, replace as stated below
upon “screaming” or not working at all.
Note: Always remove both 9-volt batteries and discard properly
before inserting any new batteries.
1. Upon removal of the old batteries and proper disposal, insert
one new 9-volt battery at a time. The contacts are spring loaded
for durability and ease of battery change. Insert the batteries
properly, look for the “+” and “- ” markings in the battery box and
insert the batteries accordingly. Ensure the polarity is correct
because batteries can be installed backwards.
2. Once the second battery is installed, check immediately for
correct operation of the instrument. If it does not operate, either
the batteries are in backwards or the batteries are dead. Pull out
and reset the batteries in the proper polarity and check for opera-
tion again.
3. Once operation is verified, replace the battery box cover.
The Captured Screw in the battery box cover can
be turned with a coin. Carefully align the
cover holding tabs on the opposite end
of the battery box, lower cover
onto box and tighten screw.
Do not over tighten.
upon “screaming” or not working at all.
Note: Always remove both 9-volt batteries and discard properly
before inserting any new batteries.
1. Upon removal of the old batteries and proper disposal, insert
one new 9-volt battery at a time. The contacts are spring loaded
for durability and ease of battery change. Insert the batteries
properly, look for the “+” and “- ” markings in the battery box and
insert the batteries accordingly. Ensure the polarity is correct
because batteries can be installed backwards.
2. Once the second battery is installed, check immediately for
correct operation of the instrument. If it does not operate, either
the batteries are in backwards or the batteries are dead. Pull out
and reset the batteries in the proper polarity and check for opera
3. Once operation is verified, replace the battery box cover.
The Captured Screw in the battery box cover can
be turned with a coin. Carefully align the
cover holding tabs on the opposite end
of the battery box, lower cover
onto box and tighten screw.
SEARCH OR SURVEY WITH THE ML-1
When searching for a target, walk slowly, sweeping the
locator back and forth in front of you. If your target is small
or very deep, use a higher GAIN setting and walk slower
sweeping the locator from side to side slowly.
Normally, a medium setting and a little less than normal
walking speed will do fine.
“PIN-POINTING” THE TARGET REPLACING THE BATTERIES
Upon locating the target using the “Search or Survey”
method, you can detect the exact location of a target such
as a surveyor’s “PK” or “MAG” nail, by following these steps:
1. Change the GAIN setting to the lowest setting that will still
define the target. See GAIN above to change settings.
2. Bring the locator to a vertical position by simply allowing
the locator to swing to vertical while you hold the handle
loosely.
3. Move the locator back and forth in an “X” pattern over the
target.
4. Move the “X” pattern until directly over the target by
crossing the “X” at the position of the peak of the signal.
LOCATOR
OPERATION
7-YEAR WARRANTY
The ML-1 & Ml-1M are guaranteed to be free of defect in
materials and workmanship for 7 years to the original
end user/purchaser.
Only authorized SSI repair personnel can repair units.
Abuse, battery acid and water damage are explicitly
excluded from warranty.
SubSurface Instruments, it’s owners, employees and
assigns shall not be liable for any action, inaction, injury,
property or consequential damage sustained or
expenses incurred from the use or misuse of this
product.
Liability under this warranty is absolutely limited to
repair, service or replacement of the instrument, at the
sole discretion of SubSurface Instruments. No other
warranty is expressed or implied.
Note: Any metal objects on the operator such as watches pocket knives, large belt
buckles and steel-toed boots will interfere if the locator is brought too close to
these objects or is operated on the higher settings.
Power: Turn the locator on by
pressing and releasing the
ON/OFF/VOL button on the keypad. Feel
the click?
Volume: To change the VOLUME, press and hold the
ON/OFF/VOL button and the unit will repeat volume cycles
from the current setting. Just release the button at the
desired VOLUME.
Gain: To change the GAIN (sensitivity) settings, repeatedly
press the GAIN button to “decrease” sensitivity and
repeatedly press the GAIN button to “increase” the sensi-
tivity setting. Do this by one click at a time. (Each click of the
button changes the setting up or down by one increment out
of eight possible settings).
3. Once operation is verified, replace the battery box cover.
The Captured Screw in the battery box cover can
be turned with a coin. Carefully align the
