Справочник Пользователя для Midian Electronics Inc SPVD-2
31 Oct. 2001
Page 1 of 3
Software v. 4.0
Ph: 520-884-7981
Toll-free: 1-800-MIDIANS
Fx: 520-884-0422
2302 E. 22
nd
St., Tucson, AZ 85713, USA
sales@midelec.com
THE ROAD RUNNER SYSTEM
SPVD-2 – DETECTOR/TRANSMITTER
QUICK INSTALLATION GUIDE
SPECIFICATIONS:
U.S. Patent #
5880682
FCC ID #
NOWSPVD-2
NEMA Certification
TS-1 & TS-2
Frequency Range
47.02 to 47.40 MHz
# of channels available
20
Channel Spacing
20 kHz
Operating Temperature
-34° to +74° C
Relative Humidity
95% or less @ 40° C
RF Output
50 – 100 mw
RF Output FCC Legal Limit
100 mw
Spurious & Harmonic
-55 dB
Frequency Stability
.005% -34
°
to +74
°
C
Modulation
±3.3 kHz FM
Modulation FCC Legal Limit
±5.0 kHz FM
Data
2000 baud NRZ w/ error correction
TX power consumption
36 mA for 17 msec at 85 mW
Battery
13.5 V, 15 Ah alkaline D-cell pack
Battery safety fuse
200 mA auto-resettable poly switch
Magnetometer circuit voltage
3 V DC regulated
TX & final amplifier voltage
6 V DC regulated
Low Voltage Alarm Level
7.5 V
INSTALLATION:
PREPARATION: The SPVD-2 is shipped without the battery
installed in the detector. To install the battery, remove the four
bolts from the underground housing cube. The top half has the
detector already installed. Place the battery in the bottom half
of the cube. Plug the battery into the white connector on the
corner of the PC board and turn on the power switch SW8.
Secure the cube by tightening the bolts, going around evenly,
make certain the gasket is sealed firmly, but do not to crush
the gasket. It is strongly suggested to use a small amount of
anti-seize or grease on the bolts. Even though the bolts are
stainless steel, several years underground can cause them to
corrode.
Install the unit in the enclosed zip lock bag to keep mud and
cold patch off the FCC label and the screw heads and threads.
To install the detector:
1. Install the pole-mounted antenna and the Receiver at
the control cabinet (refer to a SPVDREC manual for
specifics).
specifics).
2. Use an 8 inch core drill or jackhammer to dig a hole
for the yellow SPVD box. The unit should be buried
about 3 inches below the road’s surface, therefore
your hole should be about 8-9 inches deep. The
deeper you bury the unit, the greater the attenuation
of the radio signal, which will shorten the device’s
transmitting range. At a depth of 3 inches below the
road surface, the range of the unit will vary between
500 and 700 feet depending on soil composition and
moisture. If greater range is desired, try burying the
unit about an inch below the surface. For even longer
range, a concrete enclosure with lid can be purchased
from Signal Services. This allows the unit to be
practically flush with the surface and simplifies
changing the battery.
about 3 inches below the road’s surface, therefore
your hole should be about 8-9 inches deep. The
deeper you bury the unit, the greater the attenuation
of the radio signal, which will shorten the device’s
transmitting range. At a depth of 3 inches below the
road surface, the range of the unit will vary between
500 and 700 feet depending on soil composition and
moisture. If greater range is desired, try burying the
unit about an inch below the surface. For even longer
range, a concrete enclosure with lid can be purchased
from Signal Services. This allows the unit to be
practically flush with the surface and simplifies
changing the battery.
3. Remove all ferrous metal tools and vehicles from the
detection area (10 – 15 feet away). This will prevent
them from distorting the Earth’s magnetic field around
the burial site.
them from distorting the Earth’s magnetic field around
the burial site.
4. Turn the SPVD unit on its side for 2-3 seconds and
then return the unit to the upright position. This action
will cause the mercury tilt switch to put the SPVD-2
into test and calibration mode. The detector will
transmit a long tone, followed by a series of test
packets.
NOTE: When the unit is tipped on its side to activate
the transmitter’s test mode it draws maximum
continuous power. If the unit were tossed into the
back of a vehicle and landed on its side it will only
transmit for 10 seconds and then automatically shut
off to conserve battery. This prevents a dead battery
condition if the unit sits in the vehicle for a long period
of time before being set upright. To reactivate, set the
unit upright and tilt it for 2-3 seconds to activate
test/calibration mode.
will cause the mercury tilt switch to put the SPVD-2
into test and calibration mode. The detector will
transmit a long tone, followed by a series of test
packets.
NOTE: When the unit is tipped on its side to activate
the transmitter’s test mode it draws maximum
continuous power. If the unit were tossed into the
back of a vehicle and landed on its side it will only
transmit for 10 seconds and then automatically shut
off to conserve battery. This prevents a dead battery
condition if the unit sits in the vehicle for a long period
of time before being set upright. To reactivate, set the
unit upright and tilt it for 2-3 seconds to activate
test/calibration mode.
5. The tone and test packets can be monitored with a
handheld FM scanner. You will need to program the
scanner to the appropriate frequency shown on the
FCC label. It may be necessary to turn off the squelch
to hear the data packs. These packs are
approximately 17/1000 of a second long. With a
walkie talkie verify with another technician that the
receiver in the control box is hearing the tone and
turning on its arrival, departure, and low battery lights.
scanner to the appropriate frequency shown on the
FCC label. It may be necessary to turn off the squelch
to hear the data packs. These packs are
approximately 17/1000 of a second long. With a
walkie talkie verify with another technician that the
receiver in the control box is hearing the tone and
turning on its arrival, departure, and low battery lights.
6. During this time, install the unit into the hole with the
FCC label on top and the arrows pointing in the
direction of traffic.
direction of traffic.
7. Pour sand around and on top of the detector, while
making certain that the receiver is receiving the tone
and data packs.
and data packs.