The Model C-1100-B and C-1200-B are designed to detect all vehicles with the added ability of differentiating bicycles
from all other vehicles. This allows the traffic engineer to detect and provide safe passage time for bicycles without
compromising the intersection's operating efficiency. The unique capability to identify bicycles from other vehicles
allows the user to program initial time and extension time in the detector for bicycles only, thus providing a safe passage
time through the intersection. When a bicycle is detected passing through the b icycle loop (a single 6' x 6' loop or
smaller) the channel's output is latched in the call state. The call output is only latched during the absence of phase
green. The latched call is held until the detector's phase green input becomes active. At the time the phase green input
becomes active the latch is reset, the call is held, and the initial time, which has been programmed in the detector, begins
counting down to zero. If the loop is vacant when the initial time reaches zero, the call is dropped. If additional bicycles
are detected before the initial time reaches zero each subsequent bicycle extends the call by either the remaining amount
of initial time or the extension time, whichever is greater. During phase green, after the initial time expires, all bicycle
calls are extended by the amount of the programmed extension time. When the extension time is set to zero the extension
time value defaults to the initial time value. If it is desired to provide an extension time different from the initial time the
detector's extension time can be programmed for any value ranging from 0.1 seconds to 25.5 seconds. When the
extension time is set to any value other than zero the detector provides the initial time plus a separate extension time
during phase green. The detector's latched call, initial time, and extension time respond only to bicycles. For all other
vehicles, the detector output functions as a standard presence detector without timing.
The detector can also be set for Bicycle Detect Only Mode. In the Bicycle Detect Only Mode the detector does not
output call signals for other vehicles passing over the bicycle detection loop.
The Model C-1100-B is configured for 170/332 applications. 170/332 applications require a Phase Green Interface
Module (Reno A&E Model PG-4C). The Model PG-4C module accepts up to four 120 VAC green signals. The outputs
are optically isolated open collector transistors, which are connected to the phase green inputs on the detector through a
RJ 45 connector located on the Mode l C-1100-B Bicycle Detector.
The Model C-1200-B is configured for NEMA TS 1 / TS 2 applications.
Option 2: -∆L/L (% Inductance Change)
Option 11: Audible Detect (Buzzer) OFF OFF
Option 15.0: Bicycle Detect Only OFF OFF
Option 15.1: Phase Green Input Disable** OFF OFF
*WARNING: When the Bicycle Initial Timer is OFF, the channel operates as a standard detector.
**WARNING: When Option 15.1 is turned "ON", there will not be any initial time. The programmed initial time value becomes extension
time value. The extension time starts counting down immediately when the bicycle leaves the loop area.
The following table is from CALTRANS Policy Directive TR-0011 (Rev 9/2009) issued on August 29, 2007. Please consult the local
agency regulations for the time required to allow a bicycle to safely cross the intersection.
The following table defines the minimum phase time to allow a 6-foot-long bicycle to clear the last conflicting lane.
The time is defined by a bicycle start up time of 6 seconds and constant velocity of 14.7 feet/second. The time is
calculated using the formula below:
Where: W (feet) = Distance from stop bar to far side of last conflicting lane
Minimum phase time (seconds)
Bicycle initial time is calculated as follows: (B = Bicycle initial time)
Minimum phase time = B + Yellow clearance interval (Y) + Red clearance (R)
Bicycle initial time (B) = Minimum phase time - Y - R
• Enter the PROGRAM mode by momentarily pressing the FUNC pushbutton. Use the FUNC pushbutton to step
through the functions described below.
• Press the CHAN pushbutton to select the channel. The channel that is in PROGRAM mode is indicated by a flashing
numbered-loop symbol at the bottom of the LCD.
•
To change a function’s setting or to toggle a function ON or OFF, press the (UP) or (DOWN).
•
To exit the PROGRAM mode and return to the NORMAL mode, press and hold the CHAN pushbutton continuously
for one second.
LOOP FREQUENCY
Press the (UP) or (DOWN) pushbuttons to change the programmed loop frequency. The filled segment on the
bar graph indicates the setting. The left-most segment represents setting 1 and the right-most segment represents
setting 8. The LCD displays the actual loop operating frequency. A separation of at least 5 KHz for adjacent loops, not
connected to the same detector, is recommended. NOTE: Changing the frequency w ill reset the detector channel.
Care should be taken to ensure that the detector channel is not reset while the detection zone is occupied.
SENSITIVITY
Press the (UP) or (DOWN) pushbuttons to change the programmed sensitivity. The lowest Sensitivity Level is
"1" and the highest Sensitivity Level is "9". The channel can be configured to place a permanent call by selecting
CALL (one setting above Sensitivity Level "9"). The channel can be disabled by selecting OFF (one setting below
Sensitivity Level "1"). When CALL or OFF is selected the LCD flashes the message CALL or OFF during NORMAL
DISPLAY mode. NOTE: Changing the sensitivity will reset the detector channel. Care should be taken to ensure that
the detector channel is not reset while the detection zone is occupied.
DELAY TIME
Delay Time can be adjusted from 0 to 255 seconds by press ing the (UP) or (DOWN) pushbuttons. When the
Delay Time is 0 pressing the DOWN pushbutton steps the value to 255 seconds. Holding either the (UP) or
(DOWN) buttons will increase the speed of change. When the Delay Time is 255 seconds pressing the UP pushbutton
steps the value to 0. During the DELAY PERIOD, the channel’s LED flashes at a four Hz rate with a 50% duty cycle
and the LCD shows a countdown of the Delay Time. When the Phase Green Input is active the Delay Time is inhibited.
EXTENSION TIME
Extension Time can be set from 0.0 to 25.5 seconds by pressing the (UP) or (DOWN) pushbuttons. When the
Extension Time is 0.0, pressing the DOWN pushbutton steps the value to 25.5 seconds. When the Extension Time is
25.5 seconds, pressing the UP pushbutton steps the value to 0.0. Holding either the (UP) or (DOWN) buttons
will increase the speed of change. During the EXTENSION PERIOD, the channel’s LED flashes at a 16 Hz rate with a
50% duty cycle and the LCD shows a countdown of the Extension Time.
Extension Time provides extension time for only bicycles. If a bicycle is detected while Bicycle Initial Time is
counting down, the call continues until both initial time and extension time reaches zero. Additional bicycles detected
while the phase green is active will extend the detection by the extension time.
The Extension Time should be set for the time it takes a bicycle to safely cross the intersection.
BICYCLE INITIAL TIME
When in the program mode the Bicycle Initial Time will flash between "bcL" and "OFF" or "bcL" and "XXX"
(programmed time). The timer ca n be adjusted from OFF to 999 seconds by pressing the (UP) or (DOWN)
pushbuttons. W hen the time is set to OFF pressing the DOWN pushbutton steps the value to 999 seconds. Holding
either the (UP) or (DOWN) buttons will increase the speed of change. When set to OFF the detector channel
operates as a standard detector.
P/N 889-0314-01 Rev: July 2020 2 Model C-1100-B, C-1200-B Operating Instructions
In normal operation "bc" is displayed on the LCD for each channel with Bicycle Initial Time programmed. When a
bicycle passes through the bicycle loop area, the bicycle detection latches the call output. When Option 15.1 is OFF the
Bicycle Initial Time starts to countdown when the phase green input becomes active. When Option 15.1 is ON there
will not be any initial time. The programmed initial time will be extension time. The extension time starts to countdown
immediately when the bicycle leaves the loop area. When the timer reaches zero and the loop is vacant the call is
dropped. When the Extension Time is programmed to zero the Bicycle Initial Time value becomes the default
extension time value. If Extension Time is programmed it will extend each bicycle detection by the extension time
value.
The Extension Time should be set for the time it takes a bicycle to safely cross the intersection.
OPTION 1: LOOP INDUCTANCE
Pressing either the (UP) or (DOWN) pushbuttons toggles between O N and OFF. When Option 1 is OFF the
LCD indicates three dashed lines (- - -) during the No Call state. When Option 1 is ON the LCD continuously indicates
the Loop Inductance value in microhenries while in the NORMAL DISPLAY mode. Option 1 automatically turns OFF
15 minutes after the last actuation of any of the four-front panel pushbutton switches. The display shows three digits if
the inductance is between 15 μH and 999 μH. If the inductance is greater than 999 μH, the display alternate ly flashes
between 1 or 2 and the lower three digits. The four digits represent inductance values from 1000 μH to 2500 μH.
When a vehicle is detected the Detect LED and bargraph display indicate the call. The countdown of the Delay,
Extension, and Bicycle Initial timers is not displayed when Option 1 is ON. NOTE: Turning this option ON for any
channel turns it ON for both channels.
OPTION 2: INDUCTANCE CHANGE (-∆∆∆∆L/L)
Pressing either the (UP) or (DOWN) pushbuttons toggles between O N and OFF. When Option 2 is OFF the
LCD indicates a steady Call when a vehicle is detected. When Option 2 is ON the LCD indicates the -ΔL/L value when a
vehicle is detected. The maximum -ΔL/L that occurs is displayed for two seconds unless a greater change occurs. NOTE:
Turning this option ON for any channel turns it ON for both channels.
OPTION 11: AUDIBLE DETECT SIGNAL
Pressing either the (UP) or (DOWN) pushbuttons toggles between ON and OFF. When Option 11 is OFF the
Audible Detect Signal is disabled. When Option 11 is ON for a channel an audible signal is emitted when the channel’s
detection zone is occupied by any bicycle or other vehicle, regardless of Delay or Extension timing. This option can
only be turned ON for one channel at a time. The last channel to have Option 11 turned ON will be the only channel
with Option 11 turned ON. Following the last switch actuation Option 11 automatically turns off after 15 minutes.
OPTION 15.0: BICYCLE DETECT ONLY
Pressing either the (UP) or (DOWN) pushbuttons toggles Option 15.0 between ON and OFF. When Option 15.0
is OFF the channel provides a call output for all vehicles. When Option 15.0 is ON "bc0" is displayed on the LCD.
When Option 15.0 is turned ON the channel will only provide a call output for bicycles. Larger vehicles do not provide
a call output.
OPTION 15.1: PHASE GREEN INPUT DISABLE
Pressing either the (UP) or (DOWN) pushbuttons toggles Option 15.1 between ON and OFF. When Option 15.1
is OFF the channel begins counting down the bicycle Initial Time at the time the Phase Green Input becomes active.
When Option 15.1 is turned ON the initial time is disabled. Any programmed initial time functions as extension time.
The extension time starts to countdown immediately when the bicycle leaves the loop area.
LOOP FAIL
The number of loop failures logged in the loop fail register is displayed on the LCD. Any time a channel enters the Fail
Safe Mode due to a loop failure, the loop fail register is incremented by o ne count. When in the Loop Fail view mode
pressing either the (UP) or (DOWN) pushbuttons clears the loop fail register. The number of loop fail counts is
reset to zero whenever power is lost or the channel is reset. The loop fail register is not reset when the channel’s
sensitivity or frequency is changed.
After each detector channel is initialized and operating in a normal manner, the channel is continuously monitored for
faulty loop conditions (e.g. broken wires, poor splices, bad solder connections, etc.). If the measured loop inductance
value rapidly changes by more than ±25%, the channel is considered to have failed. The channel then enters the FailSafe Mode, which generates a constant call output. When a channel is in Fail Safe Mode, the Loop Fail message
located at the bottom of the LCD will be illuminated. The LCD displays L lo for shorted or low loop inductance values.
The LCD displays L hi for open or high loop inductance values. In addition, the corresponding channel’s LED begins
to emit a flashing pattern (three flashes per second). However, if the detector is reset, or power is momentarily lost, the
detector will retune if the loop inductance is within the acceptable range. If any type of loop failure occurs in one (or
more) loop(s) in a group of two or more loops wired in parallel, the detector will not respond with a Fail-Safe output
following any type of reset. It is essential that multiple loops wired to a common detector channel are wired in
series to ensure Fail-Safe operation under all circumstances.
If the loop self-heals the detector resumes normal
operation. The LED continues to flash as a means of indicating a prior loop fail condition until the loop fail register is
cleared.
P/N 889-0314-01 Rev: July 2020 3 Model C-1100-B, C-1200-B Operating Instructions
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