RAE S - 1200 User Manual
S - 1200 Series
Two Channel Shelf Mount Detector
• Back-lit LCD screen displays complete detector status
and function settings:
• Eliminates guess work and provides critical information
necessary for proper detector setup.
• Provides accurate, direct visual feedback of channel
frequency and sensitivity settings.
• Allows easy access to built-in detector diagnostic
features.
• TrueCountTM versions provide 97% to 99% count
accuracy when used with either a single long loop or
®
multiple 6’ x 6’ loops connected together.
• Audible detect signal (buzzer) facilitates loop and/or
detector troubleshooting.
• Upgrades or addition of user specic options are easily
accomplished by changing the socket mounted processor.
• Push button programming ensures long term reliability
by eliminating switch contacts.
• All programmed detector parameters are stored in nonvolatile memory.
• Directional logic capability.
The Model S-1200 Series consists of detectors designed to meet or exceed NEMA Standards TS 1-1989.
The S-1200 detector is a two channel, shelf mount type loop detector with individual channel detect
and loop fail indications provided via two high intensity red LEDs and an easy to read LCD screen. All
detector settings and parameters are congured using a set of four push-buttons and the LCD screen.
The S-1200 offers advanced features providing built-in diagnostic capabilities all of which are viewable
by means of the LCD screen. These include: 1.) real-time loop frequency, 2.) loop inductance and
-∆L/L%, 3.) a bar-graph indication of relative inductance change (which ensures proper selection of
sensitivity level), 4.) a record of accumulated loop failures, and 5.) a timer countdown of programmed
timing functions.
3510 E. ATLANTA AVENUE, PHOENIX AZ 85040 +1.480.968.6407 EDITRAFFIC.COM
S-1200 Series Specications
This is a basic performance specication and is not intended to be used as operating
instructions.
GENERAL CHARACTERISTICS:
Loop Frequency: The LCD screen displays the actual loop operating frequency for each
channel which makes it easy to quickly identify and eliminate crosstalk in the most difcult
to congure intersections. There are eight (8) selectable loop frequency settings per
channel (normally in the range of 20 to 100 kilohertz). The actual loop operating frequency
is a function of the loop / lead-in network and the components of the loop oscillator circuit.
Sensitivity: A unique bar-graph displayed on the LCD makes it easy to quickly set sensitivity
at the ideal level for any loop / lead-in network situation. There are nine (9) selectable
sensitivity levels per channel, plus settings for Continuous-Call and Channel-Off. See
SENSITIVITY, -∆L/L, & RESPONSE TIME table.
Continuous-Call: When set to the Continuous-Call state, the channel output is
continuously in the Call state regardless of the presence or absence of vehicles over
the loop. The loop oscillator is disabled when in the Continuous-Call state. This state
is indicated by CALL ashing on the LCD. This option is selected from the Sensitivity
menu in Program Mode and is useful for checking controller response and other
troubleshooting activities.
Channel-Off: When set to the Channel-Off state, the channel output is continuously in
the No-Call state regardless of the presence or absence of vehicles over the loop. The
loop oscillator is disabled when in the Channel-Off state. This state is indicated by OFF
ashing on the LCD. This option is selected from the Sensitivity menu in Program Mode
and is useful for checking controller response and other troubleshooting activities.
Call Delay: Each channel’s Call Delay is adjustable from 0 to 255 seconds in one-second
steps. Call Delay time begins when a vehicle enters the loop detection zone. The remaining
Call Delay time is continuously displayed on the LCD. Whenever a Phase Green Input (call
delay override) signal (pin J of either channel’s front panel mounted connector) is active
(high state), the Call Delay function for that channel is aborted and the Call Delay time is
forced to zero.
Call Extension: Each channel’s Call Extension is adjustable from 0 to 25.5 seconds in 0.1second steps. Extension time begins when the last vehicle clears the loop detection zone.
The remaining Extension time is continuously displayed on the LCD. Any vehicle entering
the loop detection zone during the Extension time returns the channel to the Detect state,
and later, when the last vehicle clears the loop detection zone, the full Extension time
starts counting down again. NOTE: See Option 3, Call Extension Control for an alternate
mode of operation for Call Extension.
Presence / Pulse: One of two mutually exclusive modes of operation for each channel can
be selected in Program Mode:
Presence Mode: Provides a minimum Call hold time of at least four minutes (regardless
of vehicle size) and typically one to three hours for an automobile or truck.
Pulse Mode: A single output Pulse of 125 ±10 milliseconds duration is generated for
each vehicle entering the loop detection zone. Each detected vehicle is instantly tuned
out if it remains in the loop detection zone longer than two seconds. This enables
detection of subsequent vehicles entering the loop detection zone. After each vehicle
leaves the loop detection zone, the channel resumes full sensitivity within 0.5 seconds.
Max Presence Timer: Each channel’s Max Presence timer is adjustable from 0 to 999
seconds in one-second steps. A setting of zero (0) turns the Max Presence timer OFF. The
Max Presence function is used to limit presence time by automatically resetting a channel.
If this function is enabled (ON), the Max Presence timer begins counting down when a
Call is initiated and the remaining time is continuously displayed on the LCD. If the loop
becomes vacant before the Max Presence timer reaches zero, the Call is dropped and
no automatic reset occurs. If the End-Of-Green (EOG) function is not enabled (OFF) and
the Call is still present when the Max Presence timer reaches zero, the channel is then
automatically reset. If the EOG function is enabled (ON) and the Call is still present when
the Max Presence timer reaches zero, the channel enters a Wait state. The Wait state
continues until the loop becomes vacant; or the Phase Green Input signal for the channel
(pin J of either channel’s front panel mounted connector) transitions from green to not
green with the Call still present. If the loop becomes vacant rst, the Call is dropped and no
automatic reset occurs. If the Phase Green Input for the channel transitions from green to
not green while the channel is in a Wait state, the channel is automatically reset. The phase
green signals on pin J are also called Call Delay Overrides.
End-Of-Green (EOG): The EOG function is used to synchronize a channel reset with the
termination of the associated phase green. The EOG function is only available when the
Max Presence function is set between 1 and 999 seconds. It is not available when the Max
Presence function is OFF. When the EOG function is enabled (ON), the channel will
automatically reset at the time the phase green input signal (pin J of either channel’s
front panel mounted connector) transitions from the ON state to the OFF state if the Max
Presence Time has counted down to zero and is resting in the Wait state. The phase green
signals on pin J are also called Call Delay Overrides. If an out of range loop failure condition
exists and is identied (i.e. loop inductance is less than 20 microhenries or greater than
2500 microhenries) the detector channel will not be reset at End-of Green and the channel
will remain in the failed state.
Option 1, Loop Inductance Display: When this option is enabled (ON), the LCD
screen displays the total loop inductance (actual loop inductance plus actual lead-in
inductance) in microhenries for loop inductance values in the range of 20 to 2500
microhenries. NOTE: Enabling this option activates it for both channels. This option
is automatically disabled 15 minutes after activation or on loss of power.
Option 2, Loop Inductance -∆L/L Display: When this option is enabled (ON), the
LCD screen displays the percentage of inductance change (-∆L/L value) during the
Call state. To facilitate viewing of the maximum change in the -∆L/L value while
trafc is in motion over the detection zone, the detector will hold the peak -∆L/L
value for a period of two seconds. NOTE: Enabling this option activates it for both
channels. This option is automatically disabled 15 minutes after activation or on
loss of power.
Option 3, Call Extension Control: When this option is enabled (ON), the channel
will extend calls for the programmed extension time only when the Phase Green
Input signal (pin J of either channel’s front panel mounted connector) is active
for the channel. When this option is OFF, the channel extends ALL calls for the
programmed extension time. The signals on pin J are also called Call Delay
Overrides. NOTE: Each channel can be enabled independently.
Option 4, Noise Filter Disable: When Option 4 is enabled (ON), internal noise
ltering is disabled thus providing a faster response time. When this option is
OFF, internal noise ltering is utilized. When the detector is used in speed and/or
occupancy applications, the noise lter should be disabled (i.e. Option 4 ON) to
provide the most accurate data possible. It is recommended that this option not
be activated. The factory default setting of OFF provides stable operation in high
crosstalk environments. NOTE: Enabling this option activates it for both channels.
Changing the setting of this feature will reset both channels. See SENSITIVITY,
-∆L/L, & RESPONSE TIME table.
Option 5, Phase Green Loop Compensation: When Option 5 is enabled (ON),
normal loop compensation is used until the Phase Green Input signal (pin J of
either channel’s front panel mounted connector) becomes active. Once the Phase
Green Input signal is active, concurrent with a call output, the detector desensitizes
the loop by 0.05% (-∆L/L) over a 15 second period. This desensitization tunes out
small changes, such as adjacent lane pickup, therefore minimizing the chance of
max timing an empty lane. A small motorcycle may also be tuned out following
the start of Phase Green. This option is useful in minimizing the effects of false
detection from adjacent lane pickup when a channel must be run with a high
sensitivity setting to ensure detection of motorcycles. When Option 5 is not
enabled (OFF), normal loop compensation is used. NOTE: Each channel can be
enabled independently.
Option 6.0, Vehicle Counting Display (TrueCountTM Models - See Model
Numbers Table): When Option 6.0 is enabled (ON) for a channel, the normal
operating display is replaced with the accumulated vehicle count display. Each
channel is capable of accumulating 65,535 counts before rolling over to zero.
The LCD display will show just the hundreds, tens, and ones digits until the
accumulated count exceeds 999. At this point the LCD display will alternate
between the ten thousands and thousands digits and the remaining three digits
for hundreds, tens, and ones.
Option 6.1, Counter Reset: This setting is used to reset the accumulated count
for the selected channel. When Option 6.1 is changed from the OFF state to the
ON state, the accumulated count for the selected channel is reset to zero. Option
6.1 will always be in the OFF state when rst viewed.
Option 7.00, Vehicle Counting Loop Conguration (TrueCountTM Models See Model Numbers Table): Each channel’s Vehicle Counting Loop Conguration
setting can be set from 7.01 to 7.05. This setting indicates the number of loops
installed in a single lane. Option 7.01 would indicate a single 6’ x 6’ loop or a long
loop such as a 6’ x 50’ QuadrupoleTM. The remaining four settings indicate the
number of 6’ x 6’ loops installed in a single lane of trafc. NOTE: Refer to the
Model S-1200 Series Operation Manual for complete installation and operation
details.
Option 9, Third Car Passage: Option 9 is a paired channel option. This means
that it takes two channels to implement this feature. When Option 9 is enabled
(ON), the outputs of the paired channels 1 and 2 are logically ANDed together.
This means that while the loops for both of the paired channels are occupied, a
call will be output on both channels. While only one loop is occupied, or neither
loop is occupied, a call will not be output on either channel. The rst channel
with detection will enter a pending state while waiting for detection on the other
paired channel. While in the pending state, the LCD will show Pnd on the display.
This feature is intended to be used in Protected / Permissive left turn situations.
The expected installation is a stop bar loop for the left turn lane connected to
one channel, a queue detection loop for the left turn lane connected to the other
channel with a small amount of delay time programmed, and the output of either
channel connected to the Vehicle Call input for the protected movement of the
trafc controller. NOTE: Refer to the Model S-1200 Series Operation Manual for
complete installation and operation details.
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