Maximum Maestro - Manual (Page 4)

MAESTRO
TROUBLE SHOOTING
WIND SPEED
WIND DIRECTION
1. Disconnect the two wind-speed wires from the back of the brass read-out.
2. Attach a low range AC Analog Voltmeter to the wires. If the speed sensor is operating
properly, you will achieve these approximate readings: 8-9 MPH = 0.28 VAC rms,
17 MPH = 0.56 VAC rms, 51 MPH = 1.78 VAC rms, 102 MPH 3.67 VAC rms
3. If the speed sensor delivers these approximate readings, then the brass read-out
is faulty. If the speed sensor does not produce these readings, then either the
speed sensor or the wire is faulty.
1. Unplug the AC Power Adaptor.
2. Disconnect the AC Adaptor wires and the 5-conductor cable wires from the back
of the brass read-out.
3. Connect an AC Voltmeter to the two wires coming from the AC Power Adaptor.
4. Plug in the AC Power Adaptor to a 110 VAC outlet. When functioning properly,
the adaptor will deliver 11.5-18 VAC. If the adaptor checks out fine, proceed
further with the test. If not, send both the adaptor and the instrument to Maximum.
5. If the AC Adaptor checks okay, unplug the Adapter and re-connect the two wires
to the back of the brass read-out.
6. Plug in the AC Power Adapter.
7. Using a small piece of wire or a paper clip as a jumper, touch one end to terminal #3
(the middle one of the five). Touch the other end to terminal #1, then #2, then #4 and
lastly #5 (keeping one end of the jumper on terminal #3). At each termial, two adjacent
lights should light up simultaneously. If any light fails to function properly, the fault
lies within the brass read-out.
8. If all the lights function properly, then the problem lies with either the wiring or with the
outdoor wind direction sensor. Disconnect the wires at the sensor and bring it down to
the brass read-out.
9. Use a short piece of the 5-wire cable and reconnect the sensor to the brass readout as
shown in the installation instructions.
10. Rotate the vane slowly by hand and observe the lights on the brass read-out. If they
operate properly, then the installed wiring is at fault; if not, then the outdoor wind
direction sensor is faulty.
Samuel Barnett Boulevard
New Bedford, MA 02745
(508) 995-2200
Maximum Instruments are accurate and reliable. Most problems that occure are
due to loose or corroded connections. If, after checking the connections, there is
still a problem, determine if the problem is with the sensor or the brass read-out.