Page 1
MINI-MAX
INSTALLATION
PROPER INSTALLATION IS IMPORTANT. IF YOU NEED ASSISTANCE, CONSULT A CONTRACTOR, ELECTRICIAN
OR TELEVISION ANTENNA INSTALLER (CHECK WITH YOUR LOCAL BUILDING SUPPLY, OR HARDWARE STORE
FOR REFERRALS). TO PROMOTE CONFIDENCE, PERFORM A TRIAL WIRING BEFORE INSTALLATION.
Mount the temperature sensor assembly with the two
1
WOOD
SCREWS
large wood screws. Select a location that is protected
from direct sunlight and sheltered. (A north exposure, six
feet above the ground will give the best results.)
CAULK
8"
MIN
CABLE
CLIP
DRIP
LOOP
Mount the Brass Readout directly over the Feed-Thru-Hole
to avoid crimping the wire under the lip. We recommend
mounting the Readout on one of our pre-drilled and
centered panels.
TEMPERATURE
GREEN
GROUNDING
CORD
AC
ADAPTOR
2
Form a drip loop with the wire at least eight inches
below the exit from the sensor and at least eight inches
below the point of entry into the building. Anchor any
exposed wire with insulated cable clips. Run the wire
through the building to the location where the indicator
will be located. Caulk any holes when done.
TO
SENSOR
Feed the AC Adaptor Cord, Green Grounding Cord and Sensor
4
wire to the Indicator. Connect the two temperature sensor wires
to the appropriate terminals (HEX NUTS) as shown in the
illustration. The polarity does not matter. Connect the AC adaptor
wires to their appropriate terminals (HEX NUTS) as shown in the
illustration. The polarity does not matter for these.
CABLE-HOLE
3
WALL
PRE-DRILLED PANEL
SCREW
SCREW
To prevent static from causing bad readings it is necessary to
"EARTH GROUND" you Mini-Max. Proceed as follows:
-Turn off the circuit-breaker to the outlet where the ground cord
is attached.
-Remove the outlet cover screw.
-Insert the outlet cover screw through the lug on the green
grounding cord and reinsert the outlet cover screw.
-Turn on the circuit-breaker to the outlet.
-Plug in the AC Adaptor.
-Reset the memories as described in the operating instructions
(next page).
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5
GREEN
GROUNDING
CORD
LUG
SCREW
Page 2
MINI-MAX
OPERATION
Your Mini-Max II has two switches. The toggle switch is for selecting the function. The small push button
switch behind the toggle is for resetting the memories.
Lightly holding the toggle switch to the
1
left will display the recorded low
temperature since the last reset.
Lightly holding the toggle switch
to the right will display the recorded
high temperature since the last reset.
Fully depressing the small push button switch for five seconds resets
3
both memories. The instrument will now display current temperature
and the memories once again begin storing the new high and low
temperatures.
(After resetting wait 10 seconds before activating the toggle switch.)
NOTE: Before reading your
thermometer, you should
lightly tap the case with
your finger. A TAP change
of 1-2 degrees is a common
occurance with any slow moving
precision meter movement.
2
4
The trend register needle can be set by turning the center
knob on the indicator dial.
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Page 3
MINI-MAX
TROUBLE SHOOTING
1
3
4
5
Unplug the AC adaptor and remove the instrument from the wall.
Disconnect the AC adaptor from the indicator and connect
it to an AC Voltmeter. Plug the AC adaptor back in.
If working properly the AC adaptor will deliver 11.5 to 18VAC.
If not working properly please contact the factory. If the AC
adaptor is working properly, continue with the next steps.
Unplug the AC adaptor and reconnect it to the indicator.
Plug the AC adaptor back into a 110V outlet.
Disconnect the sensor wires from terminals #1 and #2 on the back of the indicator. The indicator
pointer should drop to -35 F or below.
AC
ADAPTOR
AC
VOLTMETER
2
Use a jumper wire (a paper clip will do) to connect
6
Use a jumper wire to connect across terminals #2 and #3. The
calibration test point has been hand-written on the back of the
indicator just above terminals #2 and #3. If the indicator is in proper
working order it will read within 2 F of this number. We recommend
that you re-mount the instrument in this mode for several hours and
observe it periodically. This will help to detect most intermittent
problems. If the indicator registers within 2 F of the test point, then
the problem is in the sensor or wire.
across the sensor terminals #1 and #2. The indicator
should read 120 F. If so, disconnect this jumper and
proceed to the next step.
7
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Page 4
IMPORTANT ADDITIONAL INFORMATION
Components: Along with the indicator, the following components are included with this instrument:
AC Adaptor: This instrument requires its own AC Adaptor. Due to the various power
requirements of each Maximum instrument, attempting to run more than one instrument on a single
adaptor could cause improper operation and/or damage to the instrument(s) thereby voiding your
5-year warranty.
Brass Case: Your brass case is solid brass A70-30 Holloware quality, with a durable lacquer
finish. It is in fact a piece of jewelry and should be treated as such. It should be cleaned at least
once a week to keep airborne pollutants (dust, etc…) and any moisture from collecting on the case
thereby attacking the lacquer. At no time should you use an abrasive cleaner or cloth on the brass
case. Simply use a soft cloth or soft paper towel with a mild glass cleaner to wipe the case clean.
If your instruments are in a summer home, and you are not able to clean them regularly, simply lay
a small cloth or towel across the top two -thirds so that dust cannot settle on the finish.
Specifications: All instrumentation or measuring devices have accuracy tolerances and
specifications. Making comparisons between different pieces of equipment is appropriate provided
the specified accuracies of both are known.
Measurement Range Guaranteed Accuracy
Temperature (Indicator) -35 to 120°F ±.5°C., 1°F
Temperature (Sensor) ±.5°C., 1°F
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Page 5
Electrical Damage – Common Causes & Recommended Prevention
Electrical damage can be caused by many different factors. Below are some of the more common causes and
some suggested methods of minimizing potential problems.
Common Causes:
Storm Activity – lightening in your area can do damage to your instruments in different ways. The obvious
way is due to a direct or nearby strike. In addition, lightening storms, dust storms, dry snowstorms and
strong dry winds can all cause static electricity to build up on and around your external sensors. Rega rdless
of the cause, this built up electricity can discharge itself through the cable connecting the external sensors to
the instrument.
Power Surges – A surge may come from the electric company’s switching generators or power grids, from
local industries or after power interruption when accumulated power suddenly surges back through AC lines.
Even the on-and-off switching of large electrical appliances, such as refrigerators or clothes dryers can
create damaging fluctuations. This is especially true with sensitive weather recording devices.
Yourself – Are you constantly giving and/or receiving a shock every time you touch a doorknob or another
person? If so, you have a great deal of static electricity in your environment. Depending on where you live,
static electricity may be a year round problem or only a seasonal problem. In either case, it is possible for a
person to carry enough of a charge to damage an instrument.
Recommended Prevention:
Use Surge Protectors – For the AC adapter, a UL 1449 rated surge protector with EMI/RFI filtering is
recommended. This rating will be clearly listed on the packaging of all good qualit y surge protector.
Discharge Yourself – If the instruments are located in an environment where static electricity is a proble m ,
make sure that you discharge yourself before touching the instrument(s). The shock that you get from
touching a doorknob or another person can often be sufficient to damage an instrument.
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