Maximum Merlin User manual

MERLIN
WHITE
WHITE
RED WIRE
TERMINAL 4
GREEN WIRE
TERMINAL 5
WIND DIRECTION
SENSOR
GREEN WIRE
RED WIRE
WI-FI
PROPER INSTALLATION IS IMPORTANT. IF YOU NEED ASSISTANCE, CONSULT A CONTRACTOR, ELECTRICIAN
OR TELEVISION ANTENNA INSTALLER (CHECK WITH LOCAL BUILDING SUPPLY, OR HARDWARE STORE FOR
REFERRALS). TO PROMOTE CONFIDENCE, PERFORM A TRIAL WIRING (BENCH TEST) BEFORE INSTALLATION.
1
Connect the BLACK and WHITE wires to
the terminals of the WIND SPEED SENSOR.
Connect the of the 2-conductor RED and GREEN wires to the
bottom of the WIND DIRECTION SENSOR. Note that the RED wire
connects to TERMINAL 4 and the GREEN wire goes to TERMINAL 5.
.
3
Samuel Barnett Boulevard
New Bedford, MA 02745
[phone]
WI-FI SENSOR INTERFACE
WEATHER INSTRUMENTS
5. Wind Direction (Green)
6. Rain
7. Rain
8. Temperature
5. Wind Direction (Green)
6. Rain
7. Rain
8. Temperature
9. Temperature
10. Humidity (Red)
11. Humidity (Black)
12. Humidity (Green)
1 2 3 4 5 6 7 8 9 10 11 12
1. Wind Speed (White)
2. Wind Speed (Black)
3. Empty
4. Wind Direction (Red)
GREEN
WIRE RED
WIRE
12 VOLT
POWER
SUPPLY
BLACK
WIRE
WIND SPEED
SENSOR
BENCH TEST
2
Connect the other ends of the RED and GREEN wires to
the WI-FI SENSOR INTERFACE. The RED wire connects to
TERMINAL 4 and the GREEN wire connects to TERMINAL 5.
4
Connect the other ends of the BLACK
and WHITE wires to TERMINALS 1 and
2 of the WI-FI SENSOR INTERFACE.
OVERVIEW
Maximum has designed a system that captures all its exterior sensor options and transmits the
weather conditions through your home or business wi-fi network. You can use this signal to
display on our beautiful weather instruments and or interface with the Weather Underground
website to monitor your installation remotely. If you would like to monitor your station on
Weather Underground visit their website and join. Follow the www.wunderground.com
screen prompts to obtain a station id and password that will be required during the Captive Portal setup.
Page 1
INSTALLATION
WI-FI SENSOR
INTERFACE
GREEN
WIRE RED
WIRE
RED
GREEN
GREEN
RED
GREEN
RED
WHITE
WIRE
RED
GREEN
WHITE
WHITE
WHITE
WIRE
BLACK
WIRE

INSTALLATION
MERLIN
WI-FI
MAESTRO
AC ADAPTER
1 2 3 4
IN
COM
OUT
5
BENCH TEST (CONTINUED)
WEATHER INSTRUMENTS
WI-FI INSTRUMENT INTERFACE
Red: Instrument Power
Green: Instrument Power
White: Serial in
Black: Serial Common
WI-FI INSTRUMENT INTERFACE
BENCH TEST
BOOT SEQUENCE
Power Applied
Step Sys App Desription
1
WI-FI INSTRUMENT INTERFACE System Started
1
WI-FI INSTRUMENT INTERFACE Captive Portal Launched
1
WI-FI INSTRUMENT INTERFACE Captive Portal Running
1
CALIBRATED
Removal Of Seals Voids All Warranties
Maximum, Inc.
WI-FI INSTRUMENT
INTERFACE
BLACK
WIRE
WHITE
WIRE
12 VOLT
POWER
SUPPLY
Unplug both 12 volt power supplies and remove the
wiring and cables and proceed with a permanent installation.
Samuel Barnett Boulevard
New Bedford, MA 02745
[phone]
4 Connect the RED and GREEN wires to
the terminals labeled AC ADAPTER
as shown in the illustration. Connect
the WHITE wire to the number 1
terminal and connect the BLACK
wire to the number 2 TERMINAL.
Page 2
GREEN
WIRE
RED
WIRE
GREEN
WIRE
RED
WIRE
WHITE
WIRE
WEATHER INSTRUMENTS
WI-FI INSTRUMENT INTERFACE
Red: Instrument Power
Green: Instrument Power
White: Serial in
Black: Serial Common
WHITE
5
Plug in the 12 volt power supplies on both the Instrument
Interface and the Sensor Interface and observe the LED’s
as they run through the boot up sequence. Also turning
the wind direction sensor and spinning the wind speed
sensor should promote a change on the Maestro’s dial.
RED GREEN
WI-FI SENSOR INTERFACE
WEATHER INSTRUMENTS
5. Wind Direction (Green)
6. Rain
7. Rain
8. Temperature
5. Wind Direction (Green)
6. Rain
7. Rain
8. Temperature
9. Temperature
10. Humidity (Red)
11. Humidity (Black)
12. Humidity (Green)
1 2 3 4 5 6 7 8 9 10 11 12
1. Wind Speed (White)
2. Wind Speed (Black)
3. Empty
4. Wind Direction (Red)

RED
GREEN
2
BOSS
4
BOOT
5
SMALL HOLE
IN BOOT
RED
GREEN
2-CONDUCTOR
CABLE TO PINS
4 & 5 OF SENSOR
WI-FI INTERFACE
BRASS
NUT
PIN
WIND SPEED
SENSOR
STRAIGHT
STUB MAST
COTTER
Slide the straight stub mast through the black rubber
boot and insert it into the WIND SPEED SENSOR, securing
it with the supplied stainless steel cotter pin. Once the
final installation is made and proper function is verified,
coat all the wire connections with a silicone sealant
designed for electrical connections (not supplied). Slip
the boot over the base of the sensor.
BOOT
WIND DIRECTION
SENSOR
COTTER
Z-STUB
MAST
2-CONDUCTOR
CABLE
#4
TERMINAL
ALIGNED
OVER
MAST
BOOT
PIN
3
Slide the “Z” shaped mast through the black rubber boot and
insert it into the WIND DIRECTION SENSOR. Align the sensor so
that the number 4 TERMINAL is located over the horizontal
section of the “Z” shaped mast and secure it with the supplied
stainless steel cotter pin. Once the final installation is made
and proper function is verified, coat all the wire connections
with a silicone sealant designed for electrical connections
(not supplied). Slip the boot over the base of the sensor.
Feed the terminal lug end of the 2-conductor cable
through a rubber boot and connect the lugs to the
terminals on the bottom of the wind-direction sensor
with the brass nuts from the Hardware Pack. The
RED wire connects to terminal #4, the GREEN to #5. Do
NOT adjust the nuts that are already on the sensor.
30 Barnet Boulevard
New Bedford, MA 02745
[phone]
Page 3
Align the sensor so that the number 4 terminal is located
over the horizontal section of the “Z” shaped mast
1
GREEN
RED
MERLIN
INSTALLATION
WI-FI

(continued)
4Follow the instructions supplied with the antenna mount
that you purchased and secure the mast to the mount.
5
8 FEET
CHIMNEY
MOUNT
VENT-PIPE
MOUNT
TRIPOD
MOUNT
WALL
MOUNT
EVE
MOUNT
MERLIN
INSTALLATION
WI-FI
DRIP
LOOP
CAULK
WIRE
CABLE
CLIPS
If the WI-FI SENSOR INTERFACE is to be inside form
a drip loop at least eight inches below the
point of entry into the building. Anchor any exposed
wire with insulated cable clips. Run the wire
into the building to the location where the SENSOR
INTERFACE will be located. Caulk any holes when done.
HOSE
CLAMP
EAST
MAST
“Z” SHAPED STUB
MUST BE ALIGNED
TO THE EAST
SOUTH
STUB
Samuel Barnett Boulevard
New Bedford, MA 02745
[phone]
Page 4
6RED AND GREEN
WIRES FROM
INSTRUMENT
INTERFACE
BLACK
WIRE FROM
INSTRUMENT
INTERFACE
RED
A t t a c h t h e w i r e s t o t h e r e a r o f t h e b r a s s
INSTRUMENT as shown. The RED and GREEN
wires from the INSTRUMENT WI-FI INTERFACE
connect to the TERMINALS marked AC ADAPTER.
The WHITE wire connects to TERMINAL marked “1” and
the BLACK wire to TERMINAL marked “2”. (Do
NOT adjust the nuts that are already on the meter.)
RED
GREEN
GREEN
WEATHER INSTRUMENTS
WI-FI INSTRUMENT INTERFACE
Red: Instrument Power
Green: Instrument Power
White: Serial in
Black: Serial Common
WI-FI INSTRUMENT
INTERFACE
WHITE
WHITE
WIRE FROM
INSTRUMENT
INTERFACE
WHITE

Samuel Barnett Boulevard
New Bedford, MA 02745
[phone]
MERLIN
Page 5
WHITE
GREEN
RED
MERLIN MYSTIC RAINWATCH
WHITE
GREEN
RED
AC ADAPTER AC ADAPTER
AC ADAPTER
1 2 3 4
IN
COM
OUT
5
BLACK
BLACK
WHITE
WHITE
1 2 3 4
IN
COM
OUT
51 2 3 4
IN
COM
OUT
5
WEATHER INSTRUMENTS
WI-FI INSTRUMENT INTERFACE
Red: Instrument Power
Green: Instrument Power
White: Serial in
Black: Serial Common
WI-FI INSTRUMENT
INTERFACE
1
2
4WHITE
GREEN
RED
RAINWATCH WITH MINI-MAX AND MAESTRO CONNECTIONS
Connect the and wires from the INTERFACE to the power terminals on the back of the MERLIN. RED GREEN
The polarity does not matter. Connect other instruments from the power terminals on the back of the MERLIN.
Connect the WHITE wire from the INSTRUMENT INTERFACE to TERMINAL #1 (IN) of the MERLIN.
A. Connect the wire from MERLIN TERMINAL #3 (OUT) to MYSTIC #1 (IN).WHITE
B. Connect the BLACK wire from MERLIN TERMINAL #2 (COM) to MYSTIC TERMINAL #2 (COM).
3Connect the BLACK wire from the INSTRUMENT INTERFACE to TERMINAL #2 (COM) of the MERLIN.
5WHITE
A. Connect the wire from MYSTIC TERMINAL #3 (OUT) to RAINWATCH TERMINAL #1 (IN).WHITE
B. Connect the BLACK wire from MYSTIC TERMINAL #2 (COM) to RAINWATCH TERMINAL #2 (COM).
6The order of the instruments does not matter i.e. the WI-FI could just as well be wired into the RAINWATCH
and the MYSTIC and MERLIN could be from the RAINWATCH.
OPTIONAL INSTALLATION
WITH MINI-MAX AND RAINWATCH
WI-FI
WHITE
WHITE
WHITE

MERLIN
OPERATION
WI-FI
30 Barnet Boulevard
New Bedford, MA 02745
[phone]
Page 6
2
1
OUT
SETTING UNITS OF MEASUREMENT
Merlin can be set to display the wind speed in miles per hour, knots, kilometers per
hour or meters per second. To change the units of measurement follow these steps:
1. Press the small push button switch on the back of the MERLIN indicator.
The display will show "UN" and a number. The number indicates the units of
measurement.
UN0 = miles per hour
UN1 = meters per second
UN2 = kilometers per hour
UN3 = knots
2. Press the push button again to advance through the available units.
3. When you have the code showing for the units of measurement you want, press
the toggle switch on the side of the case to the right (auto position).
Merlin will then perform a self-test and return to normal operation.
Resetting the Peak, Average and Forecast functions individually
can be done by toggling to the function that you wish to reset. Then
hold the switch to the left for at least 6 seconds. At that point you will
see the display reset itself.
To select a function, move the switch to the right and
allow it to return to the center. This toggles Merlin to
the next function. Repeat this until you see the
function that you wish.
To auto-sequence through all of the functions, hold
the switch to the right for at least three seconds.
You will see each function light stay on and the
corresponding information displayed for
approximately four seconds. MERLIN will
then move to the next function automatically.
To return to the manual sequencing mode, move the switch
briey to the right and then let it return to center.
With the switch in the center (resting) position, MERLIN will
display the information indicated by the illuminated function
(Present, Peak, Average, or Forecast).
To reset all the stored functions at once, select the "Present"
function by moving the switch to the right and releasing until
the "Present" light is illuminated. Then hold the switch to the
left until the display blanks out (about six seconds). The unit
will then perform a self-test and return to normal operation.
5
4
3
N
S
MERLIN
PRESENT
PEAK
AVERAGE
FORECAST
FORECASE
AVERAGE
PEAK
PRESENT
MERLIN
N
E
W
NW
NE
SE
S
SW
FORECASE
AVERAGE
PEAK
PRESENT
MERLIN
N
W
NW
NE
SE
S
SW
E
FORECASE
AVERAGE
PEAK
PRESENT
MERLIN
N
W
NW
NE
SE
S
SW
E
FORECASE
AVERAGE
PEAK
PRESENT
MERLIN
N
W
NW
NE
SE
S
SW
E

Peak Wind- When rst powering up MERLIN, after long power outages, or when totally resetting, the Peak
Wind direction LEDs will not function until wind has been recorded.
Average Wind- The rst reading after setting the Average will be the current wind speed. This reading will
settle out as MERLIN accumulates more data. Prevailing wind direction lights will not function until 12
minutes after powering up or resetting. As with the wind speed there will be no prevailing direction
indication if there is no wind.
Forecast- When rst powering up MERLIN, after long power outages, or when totally resetting, the
Forecast display will read "hld" (hold) for 24 minutes while MERLIN is loading its memory. During the
25th minute MERLIN will make a trend reading "inc" (increase), "dec" (decrease), "---" (no change)
in wind speed based on comparing two 12-minute blocks of time. If there has been no wind for an
entire 12 minute timing interval, the direction lights will blank out. If there is no wind for the next
12 minutes then the display will show "---" and the direction lights will remain off.
Wind Direction- MERLIN takes a reading every second. When the wind changes direction very
rapidly (faster than 1 second), some direction lights may not light. This is normal operation as
MERLIN is simply between readings.
Latch Up- Power Line disturbances or improper installation (plugging in the AC Adapter before
attaching to instrument) can cause a blank or improper display reading. If MERLIN is "latched up"
proceed as follows:
1. Unplug the AC adapter.
2. Wait 15 seconds.
3. Plug the AC adapter back in to a 110 VAC outlet.
During power outages MERLIN's display will blank out and the instrument will not continue to accumulate
data. It will preserve the previously accumulated data for up to 10 years.
Using the Forecast function and periodically updated Average function together, you can often watch
not only small changes in wind conditions but more signicant "backing" and "veering" patterns foretelling
frontal movements.
If you are unsure as to when Forecast made it's last update, wait more than 12 minutes and read again
(it updates every 12 minutes).
When MERLIN is in the Peak, Average, and Forecast modes the direction lights blink. This indicates
that you are observing recorded data and not the present wind direction.
Setting the switch to Auto does not erase stored data.
You do not need to time the 6 second reset time, MERLIN will blank out the display to indicate that the
memory has been erased.
(CONTINUED)
MERLIN
OPERATION
WI-FI
30 Barnet Boulevard
New Bedford, MA 02745
[phone]
Page 7