Maximum Vigilant - Manual (Page 2)

VIGILANT
OPERATION
TROUBLE SHOOTING
ADDITIONAL INFORMATION
To reset the gust register needle,
turn the knob counter-clockwise.
The Vigilant is a self-powered wind speed measuring instrument. It does not need batteries
or an external power supply. In normal operation, it requires no maintenance.
Turning the knob counter-clockwise will eventually contact the gust register.
The Gust Register should not be set under 15 MPH - this gives the needle
room to operate at low speeds. If the Gust Register is set below 15 MPH
turn the knob clockwise until the needle registers greater than 15 MPH.
After setting the Gust Register turn the knob clockwise
until the reset arm is parked near the six o'clock position.
Failure to do so may damage your meter.
1. Disconnect the wires from the back of the brass read-out.
2. Connect an ohm meter to the wires.
3. The ohm meter should indicate between 1,000 and 2,000 ohms.
4. If there is a good reading on the ohm meter, then the brass read-out
is faulty. If the reading is bad, then the sensor or wire is faulty.
1. Disconnect the wires from the back of the brass read-out.
2. Attach a low range AC Voltmeter to the wires. If the sensor is operating
properly, you will achieve these approximate readings (using 20,000 ohms
per volt): 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 sensor delivers these approximate readings, then the brass read-out
is faulty. If the sensor does not produce these readings, then either the
sensor or the wire is faulty.
WIRE
GAUGE
MAXIMUM FEET
WITHOUT RECALIBRATION
WIRE
GAUGE
MAXIMUM FEET
WITHOUT RECALIBRATION
24
22
20
19
18
300'
500'
750'
1000'
1250'
(supplied with instrument)
Cables can be shortened or lengthened without affecting accuracy
If there is
no wind
If there is
wind
16
14
12
10
2000'
3200'
5000'
8000'
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.