• Back-lit LCD screen displays complete detector status and
• Allows easy access to built-in detector diagnostic features.
• TrueCount versions provide 97% to 99% count accuracy
®
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.
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 non-
volatile memory.
• Directional logic capability.
The Model C-1000 series consists of detectors designed to meet or exceed NEMA Standards TS 2-1992 for Type
C detectors. These units are downward compatible to NEMA Standards TS 1-1989. In addition, the Model C- 1000
series includes versions that are designed for use in Type 332 / 170 applications. The C-1000 detector is a two
channel, card rack 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 C-1000 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.
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3510 E. ATLANTA AVENUE, PHOENIX AZ 85040 +1.480.968.6407 EDITRAFFIC.COM
C - 1000 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.
This 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 1-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 1 or 2) is active (low 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
0.1-second 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 4 minutes (regardless of vehicle
size) and typically 1 to 3 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 2 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 1 to 999 seconds
in 1-second steps, plus 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 1 or 2) 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 pins 1 and 2 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 1 or 2) 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 pins 1 and 2 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 2 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 1
or 2) is active for the channel. When this option is off, the channel extends ALL calls for
the programmed extension time. The signals on pins 1 and 2 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 the detector.
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 1 or 2) 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 (TrueCount 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 0. 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 (TrueCount 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’ Quadrupole™. The
remaining four settings indicate the number of 6’ x 6’ loops installed in a single lane of
trafc. NOTE: Refer to the Model C-1000 Series Operation Manual for complete installation
and operation details.
Option 8, Common Fail Output (Fail Output Models Only - See “Model Numbers”
Table): When Option 8 is enabled (on), a failure on either detector channel will cause both
of the detector fail outputs (pins 6 and 19) to activate. This feature is useful in situations
where independent failure monitoring of each channel is not needed (or possible). One fail
output from each detector in the rack can be wired together, thus providing a single fail
output for the entire rack.
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 appear on both channels. While only one
loop is occupied, or neither loop is occupied, a call will not appear 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. The
intent of this feature is for use in Protected / Permissive left turns. 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 C-1000 Series
Operation Manual for complete installation and operation details.
Option 10, Directional Logic: Option 10 is a “paired channel” option. This means that it
takes two channels to implement this feature. When Option 10 is enabled (on), directional
logic is enabled. Directional logic starts with a detection on one of the paired channels. This
channel will go into the “pending” state, display “Pnd” on the LCD screen, and NOT output
a call. When both of the paired channels have detection, the last channel to have detection
will output a Call until the detection for the last channel ends, even if the detection ends for
the rst channel. None of the timing functions (Delay, Extension, Max Presence, or Detector
Disconnect) of the rst channel with a detection will time and the rst channel will always
operate in the Presence Mode regardless of programming for the channel. The second
channel with a detection will time all timing functions as programmed.
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C - 1000 Series Specications
The intent of this feature is for use in parking lot applications where vehicles can enter or exit
from the same lane, freeway ramps for wrong way detection, and left turn lanes where other
movements in the intersection tend to clip the detection zone of the left turn. The expected
installation is two loops, one after the other in the same lane, spaced anywhere from slightly
overlapping to 6 feet apart. NOTE: Refer to the Model C-1000 Series Operation Manual for
complete installation and operation details.
Option 11, Audible Detect Signal: When this option is enabled (on), an audible signal will be
activated whenever the detection zone for the selected channel is occupied. The audible signal
indicates actual occupancy of the loop detection zone. Timing and disconnect functions have no
affect on the audible signal. This feature allows a technician to watch the detection zone on the
street and conrm correct detector operation without having to look at the detector display as
well. Only one channel can have this feature active at a given time. Turning this option on for one
channel automatically turns it off for the other channel. NOTE: This option is automatically
disabled 15 minutes after activation or on loss of power.
Option 12.0, Detector Disconnect: The Detector Disconnect feature requires that the Phase
Green Inputs for each channel be connected to the proper controller phase. When the Phase
Green Input is not active (high), the detector shall operate normally. When the Phase Green
Input is active (low), at the end of each detection, the extension timer will start to count down.
If this timer reaches zero before the next detection, this channel will no longer output a Call until
the phase green input is not active. Because the extension timer is used as a disconnect timer
while in this mode, two different disconnect types are available:
Option 12.1 OFF: Extension timing occurs and the extension timer also serves as the
disconnect timer during phase green. This will cause the Call output to remain in the Call state
until disconnect occurs. This may allow the user to use gap times appropriate for the advanced
loops without considering the effects on the stop bar loops.
Option 12.1 ON: Extension timing is disabled and the extension timer is used as the disconnect
timer. This will cause the Call output to follow the occupancy of the loop detection zone until
disconnect occurs. The intent of this feature is for use in applications where a loop at the stop
bar is not needed after any waiting queue in the associated trafc lane is moving during the
green. Note: Refer to the Model C-1000 Series Operation Manual for complete installation and
operation details.
SPECIFICATIONS (PHYSICAL):
Weight: 6 oz (170 gm).
Size: 4.50 inches (11.43 cm) high x 1.12 inches (2.84 cm) wide x 6.875 inches (17.46 cm) deep
(including connector, excluding handle). Handle adds 1.00 inch (2.54 cm) to depth measurement.
Operating Temperature: -40°F to +180°F (-40°C to +82°C).
Circuit Board: Printed circuit boards are 0.062 inch thick FR4 material with 2 oz. copper on
both sides and plated through holes. Circuit boards and components are conformal coated with
polyurethane.
Connector: 2 x 22 contact edge card connector with 0.156 inch (0.396 cm.) contact centers.
Key slots located between pins B / 2 & C / 3, E / 5 & F / 6, and M / 11 & N / 12. See “PIN
ASSIGNMENTS” table. Loop Feeder Length: Up to 5000 feet (1500 m) maximum with proper
feeder cable and appropriate loops.
SPECIFICATIONS (ELECTRICAL):
Power: 10.8 to 30 VDC, 120 mA maximum, 1.8 Watts maximum.
Loop Inductance Range: 20 to 2500 microhenries with a Q factor of 5 or greater.
Loop Inputs: Transformer isolated. The minimum capacitance added by the detector is 0.068
microfarads.
Lightning Protection: The detector can tolerate, without damage, a 10 microfarad capacitor
charged to 2,000 volts being discharged directly into the loop input terminals, or a 10 microfarad
capacitor charged to 2,000 volts being discharged between either loop terminal and earth
ground.
Reset: Meets and/or exceeds NEMA TS 1 and TS 2 detector specications. Application of a 30millisecond low state (0 to 8 VDC) to pin C resets all channels. The detector can also be reset
by removing and reapplying power or by changing the setting of Option 4 (Noise Filter Disable).
Each detector channel can be independently reset by pressing the CHAN button until the
desired channel is selected, then holding the CHAN button for 3 seconds. Also, changing either
the sensitivity or loop frequency of a channel will reset that channel. NOTE: Resetting a channel
or changing the setting of Option 4 does not disable any selectable diagnostic functions. If
any diagnostic option(s) (Option 1, Option 2, or Option 11) has (have) been activated, it (they)
will remain activated following the channel reset or change of Option 4 setting. Resetting the
detector by applying a 30-millisecond low state to pin C or removing and reapplying power
disables all selectable diagnostic features.
Phase Green Inputs: Also known as Call Delay Overrides. Meets and/or exceeds all NEMA TS
1 and TS 2 requirements. Application of a low state voltage (0 to 8 VDC) to pin 1 (Ch. 1) and/or
pin 2 (Ch. 2) causes the delay timer for the channel to abort the delay timing function and also
provides control for Phase Green Loop Compensation, Max Presence Timing (End-of-Green),
Extension Timing, and Detector Disconnect, if the features are programmed. When used in
racks without phase green inputs, the Model 1000 Series has a RJ-11 connector (6 conductors)
mounted on the circuit board for the phase green inputs (pin 1 – Ch. 2 and pin 2 – Ch. 1). See
“Modular Jack Pin Outs - Modular Jack (RJ-11) on PC Board” table.
Fail-Safe Outputs: Per NEMA TS 2, a conducting state indicates detection output. Each
detector channel output defaults to a Call state for any loop failure condition or loss of
power.
Channel Status Outputs: Per NEMA TS 2, each channel has an output to communicate the
status states of the channel as follows:
Normal operation . . . . . . . . . . . . . . . . . . . . . . .Continuous Low or On State.
Open loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 ms On time, 50 ms Off time.
Shorted loop . . . . . . . . . . . . . . . . . . . . . . . . . . .50 ms On time, 100 ms Off time.
Excessive inductance change (±25%) . . . . . .50 ms On time, 150 ms Off time.
Relay Ratings: The relay contacts are rated for 6 Amps maximum, 150 VDC maximum, and
180 Watts maximum switched power.
Solid State Output Ratings: Optically coupled eld effect transistors. 30 VDC maximum
drain to source. 50 mA maximum current. 1.2 VDC maximum transistor saturation voltage.
The output transistor is protected with a 33-volt zener diode connected between the drain
and source.
SPECIFICATIONS (OPERATIONAL):
Display: The LCD backlighting illuminates whenever any push-button is pressed. The
backlighting will extinguish 15 minutes after the last actuation of any push-button.
Detect Indicators: Each channel has a super-high-intensity, red, light-emitting-diode (LED)
to indicate a Call output, Delay Timing, Extension Timing, Pending state, or failed loop.
Response Time: Meets or exceeds NEMA TS 1 and TS 2 response time specications. See
“SENSITIVITY, -∆L/L, & RESPONSE TIME” table for actual response times.
Self-Tuning: The detector automatically tunes and is operational within 2 seconds after
application of power or after being reset. Full sensitivity and hold time require 30 seconds of
operation.
Environmental & Tracking: The detector is fully self-compensating for environmental
changes and loop drift over the full temperature range and the entire loop inductance range.
Grounded Loop Operation: The loop isolation transformer allows operation with poor
quality loops (which may include one short to ground at a single point).
Loop (Fail) Monitor: If the total inductance of the channel’s loop input network goes out of
the range specied for the detector, or rapidly changes by more than ±25%, the channel will
immediately enter the Fail-Safe mode and display “LOOP FAIL” on the LCD screen. The type
of loop failure will also be displayed as “L lo” (for -25% change or shorted loop conditions)
or “L hi” (for +25% change or open loop conditions). This will continue as long as the loop
fault exists. 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 always be wired in series to ensure
fail-safe operation under all circumstances. The Fail-Safe mode generates a continuous call
in Presence Mode or in Pulse Mode. At the time of a loop failure, the channel’s LED will
begin repeating a burst of three ashes each one second. The LED will continue these
bursts until the channel is manually reset or power is removed. If the loop “self heals”, the
“LOOP FAIL” message on the LCD will extinguish and the channel will resume operation in
a normal manner; except the LED will continue the bursts thus providing an alert that a Loop
Fail condition occurred. Each loop failure for the channel is counted and accumulated into
the Loop Fail Memory. The total number of loop failures written into the Loop Fail Memory
(since the last power interruption or manual reset) is viewed by stepping through the
channel’s functions in Program Mode to the “LOOP FAIL” message.
Full Restore To Factory Defaults: Pressing all four front panel switches simultaneously and
continuously for 5 seconds resets the detector and restores all the factory default settings.
The countdown of the 5-second period is displayed on the LCD screen. Releasing any of the
switches before the countdown ends will abort the Full Restore operation. See “FACTORY
DEFAULT SETTINGS” table.
Display Test: Pressing any two of the front panel switches simultaneously will display all
possible symbols and messages on the LCD screen.
Note: Entries in this table are based on the assumption that both detector channels are
set to the same sensitivity. To achieve the exact response times listed above, the Sensitivity level of both channels must be set the same. To approximate response times for a
detector with channels set to different sensitivities, look up the response time for each
channel and divide it by two, then add these times together.