Oracle S1E, S1EC, S2E, S2EC User Manual
ORACLE E SERIES
Shelf Mount
S1E, S1EC, S2E, S2EC
Enhanced Loop Monitor
Operations Manual
THIS MANUAL CONTAINS TECHNICAL INFORMATION FOR
THE ORACLE S1E(S), S2E(S), S1EC(S), S2EC(S)
REVISION: APRIL 2017
pn 888-0351-001
THE ORACLE LOOP MONITORS ARE DESIGNED AND MANUFACTURED IN THE USA
BY EBERLE DESIGN INC.
PHOENIX, ARIZONA
AN ISO 9001:2008 REGISTERED COMPANY
INFORMATION CONTAINED HEREIN IS PROPRIETARY TECHNICAL INFORMATION
OF EBERLE DESIGN INC. PUBLICATION, REPRODUCTION OR USE IN WHOLE OR
PART IS NOT PERMITTED EXCEPT UNDER TERMS AGREED UPON IN WRITING.
DEFLECTOMETER IS A TRADEMARK OF EBERLE DESIGN INC.
©COPYRIGHT 2017 EDI.
Table of Contents
Section 1 General ............................................................................................................. 1
1.1 Description ............................................................................................................. 1
Section 2 Functions ......................................................................................................... 2
2.1 General Functions .................................................................................................. 2
2.1.1 Front Panel Controls ..................................................................................... 2
2.1.2 Sensitivity...................................................................................................... 2
2.1.3 Loop Frequency ............................................................................................ 2
2.1.3.1 Frequency Stability Graph.................................................................... 2
2.1.3.2 Noise Filter .......................................................................................... 3
2.1.4 Sensor Modes (Oracle EC Series) ................................................................ 3
2.1.4.1 Probe Mode (Oracle EC Series)........................................................... 3
2.1.4.2 Rail Mode (Oracle EC Series) .............................................................. 3
2.1.5 Presence / Pulse Modes ............................................................................... 3
2.1.6 Delay and Extend Function ........................................................................... 4
2.1.6.1 Call Delay Timer .................................................................................. 4
2.1.6.2 Call Extension Timer ............................................................................ 4
2.1.6.3 Timer Control Inputs ............................................................................ 4
2.1.7 Channel Display ............................................................................................ 5
2.1.7.1 Count down timers ............................................................................... 5
2.1.7.2 Loop frequency Display ....................................................................... 5
2.1.7.3 Loop Inductance Display ...................................................................... 5
2.1.7.4 Vehicle Count Display (Oracle EC Series ) .......................................... 5
2.1.7.5 DEFLECTOMETER® Pie Graph ........................................................... 5
2.1.7.6 DEFLECTOMETER® Streaming Graph ................................................ 5
2.1.8 Event Log...................................................................................................... 5
2.1.9 Channel ID .................................................................................................... 6
2.1.10 Paired Channel Functions ........................................................................... 6
2.1.10.1 3rd Car Mode ...................................................................................... 6
2.1.10.2 Directional Logic ................................................................................ 6
2.1.11 Set Factory Default Settings ........................................................................ 6
2.2 Operational ............................................................................................................ 7
2.2.1 Channel Output Control ................................................................................ 7
2.2.2 LCD Display .................................................................................................. 7
2.2.3 High Intensity Color-Coded LED Indicators ................................................... 7
2.2.4 Loop Fault Monitor ........................................................................................ 7
2.3 Vehicle Counting (Oracle S1EC / S2EC) ................................................................ 8
2.3.1 Vehicle Counting (AccurateCount) Display .................................................... 8
2.3.2 Vehicle Counting (AccurateCount) Mode....................................................... 8
2.3.3 Vehicle Counting (AccurateCount) Loop Configurations ................................ 8
Section 3 Programming ................................................................................................... 9
3.1 Installation .............................................................................................................. 9
3.1.1 Main Menu .................................................................................................... 9
3.2 SET UP Menu ........................................................................................................ 9
3.2.1 Sensitivity...................................................................................................... 9
3.2.1.1 Adjusting sensitivity using the DEFLECTOMETER® ............................. 9
3.2.1.2 Adjusting sensitivity without using the DEFLECTOMETER® ................10
3.2.2 Frequency ....................................................................................................10
3.2.3 Paired Channel Modes (S2E, S2EC only) ....................................................10
3.2.3.1 3rd Car mode .......................................................................................10
3.2.3.2 Directional Logic mode .......................................................................11
3.2.4 Operational Modes .......................................................................................11
3.2.4.1 Presence Mode...................................................................................11
3.2.4.2 Timing .................................................................................................11
3.2.5 Channel ID ...................................................................................................12
3.3 Vehicle Counting (Oracle EC Series) .....................................................................12
3.3.1 Counting Type (AccurateCount) ...................................................................12
3.3.2 Vehicle Counting Output (AccurateCount) ....................................................13
3.4 Display Modes .......................................................................................................13
3.5 Loop Fault Monitor ................................................................................................13
3.6 Event Log ..............................................................................................................13
3.7 System Menu ........................................................................................................14
3.7.1 Run Menu Item ............................................................................................14
3.7.2 System Info Menu Item ................................................................................14
3.7.3 Temperature and Voltage Menu Item ...........................................................14
3.7.4 LCD Display Heater Menu Item ....................................................................14
3.7.5 Options Menu Item (Oracle EC Series) ........................................................14
3.7.5.1 Probe Gap Menu Item .........................................................................14
3.7.5.2 Stream Menu Item (Oracle ECX Series) .............................................14
Section 4 Theory of Operation ........................................................................................15
4.1 General .................................................................................................................15
4.2 Trouble Analysis ....................................................................................................15
4.2.1 LCD or LED not lit - detector does not operate or have power ......................15
4.2.2 Fault and Detect LEDs flashing ....................................................................15
4.2.3 Detector does not detect all vehicles ............................................................16
4.2.4 Detector is noisy/chatters/gives false detect CALLs .....................................16
4.2.5 Poor Loop connections ................................................................................16
4.2.6 Poor Loops ..................................................................................................16
Section 5 Loop Installation .............................................................................................17
5.1 Loop Design ..........................................................................................................17
Section 6 Specifications .................................................................................................19
6.1 Mechanical ............................................................................................................19
6.2 Environmental .......................................................................................................19
6.3 Electrical ...............................................................................................................19
6.4 Loop Inductance (Tuning) Range ..........................................................................19
6.4.1 Grounded Loop Operation............................................................................19
6.4.2 Lead-in Length .............................................................................................19
6.5 Loop Input (Lightning Protection) ...........................................................................19
6.6 Response Timing ..................................................................................................20
6.6.1 ORACLE S1E (S1EC) ..................................................................................20
6.6.2 ORACLE S2E (S2EC) ..................................................................................20
6.7 Connector Pin Assignments ..................................................................................20
6.7.1 ORACLE S1E(S) and S1EC(S) Pin Assignment ...........................................20
6.7.2 ORACLE S2E(S) Pin Assignment ................................................................21
6.7.3 ORACLE S2EC(S) Pin Assignment ..............................................................21
ORACLE S1E and ORACLE S2E
Operations Manual
Section 1
General
1.1 DESCRIPTION
The ORACLE S1E and S2E Enhanced Loop Monitor series is a full featured one and two
channel inductive loop vehicle detector conforming to Nema TS1-1989 (R2005)
requirements.
The ORACLE features a front panel mounted multi-line graphic Liquid Crystal Display
(LCD) which assists the user in setting up the unit and can display operational parameters
and diagnostic information for all channels simultaneously. A built-in heater is provided to
enhance the LCD performance for cold temperature operation. An easy to use natural
language menu structure guides the operator through the set up process and features plain
English prompts on the LCD to describe functions and parameters. Two toggle switches
per channel are used to navigate through the menus and make data entries as required. All
programmed settings are stored in non-volatile memory. If power is disrupted or a detector
reset occurs the programmed settings will not be altered.
Loop diagnostic capabilities incorporated within the ORACLE enables the diagnosis of
shorted or open circuit loops and sudden inductance changes exceeding 25 percent of the
nominal value. For each channel, the type of fault is displayed on the LCD and signified by
the fault indicator emitting a different flash sequence. The last 25 loop faults are stored in
an event buffer and can be reviewed in the Event Log. This information can greatly assist
the user in the diagnosis of loop related problems.
The front panel LCD provides the Frequency, Inductance, and Count (EC only) display
views. The Loop Frequency, ∆L/L%, Loop Inductance, DEFLECTOMETER
DEFLECTOMETER
®
Numeric Value, DEFLECTOMETER® Streaming Graph, Frequency
Stability Graph, Sensitivity Level, Mode of Operation, and Vehicle Counting Accumulator
can be viewed on the front panel LCD.
The ORACLE offers a unique and very useful feature called the DEFLECTOMETER
DEFLECTOMETER
determining the optimum sensitivity setting by showing the change in inductance caused by
traffic moving over the loop. The DEFLECTOMETER
®
display allows you to use visual and numeric aids to assist in
®
aids in setting the detector channels
quickly and easily to the most optimum sensitivity level to ensure trouble-free detection of
all vehicles, including motorcycles and high bed vehicles (see section 3.2.1). Sensitivity can
be adjusted in real-time with a vehicle continuously occupying the detection zone.
The CALL outputs are fail-safe relays and conform to TS1-1989 standards. Solid State
outputs may be requested as an option (Model ORACLE S1ES or ORACLE S2ES). The
ORACLE detectors will tune to any loop and lead-in inductance between 20 and 2500
microHenries and will provide satisfactory operation with lead-ins as long as 5000 feet.
Delay, Extend and User-Defined timing functions are included with the ORACLE Series II.
The ORACLE S1EC and S2EC add the AccurateCount (Vehicle Counting) feature that
enables vehicles to be counted with vehicle totals displayed on the LCD panel. The
AccurateCount output also provides a secondary output for each channel for every vehicle
in the loop zone at the same time. The unit can be programmed on each channel for one
loop to eight loops connected together in series.
®
Pie Graph,
®
. The
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ORACLE S1E and ORACLE S2E
Sensitivity
∆L/L
Sensitivity
∆L/L
20
0.0035 %
10
0.113 %
19
0.005 %
9 0.160 %
18
0.007 %
8 0.226 %
17
0.010 %
7 0.320 %
16
0.014 %
6 0.453 %
15
0.020 %
5 0.640 %
14
0.028 %
4 0.905 %
13
0.040 %
3 1.280 %
12
0.057 %
2 1.810 %
11
0.080 %
1 2.560 %
Operations Manual
Section 2 Functions
2.1 GENERAL FUNCTIONS
2.1.1 FRONT PANEL CONTROLS
Two high-reliability sealed front panel toggle switches for each channel are used to select
operational and display settings. One switch is designated “MENU (Back/Select)” and is
used to accept the setting displayed and to move to the next menu item or go back to the
previously displayed screen. The second switch is designated “SCROLL (Up/Down)” and
allows you to move through each selected menu.
2.1.2 SENSITIVITY
There are twenty selectable sensitivity levels per channel. The DEFLECTOMETER
Graph, DEFLECTOMETER
®
Numeric Value and a DEFLECTOMETER® Streaming Graph,
make it easy to set-up and optimize sensitivity for each channel. Sensitivity can be selected
from the “SET UP” or “QUIK SET” menus, to optimize vehicle detection on varying loop and
lead-in configurations. Sensitivity is stated in terms of ∆L/L [i.e. as the minimum percentage
change in the total inductance (loop plus lead-in) to which the unit will respond at the given
level.] See section 3.2.1.
®
Pie
2.1.3 LOOP FREQUENCY
The LCD screen displays the actual loop frequency to help avoid interference which may
occur when loops connected to different detectors are located adjacent to one another.
One of eight (8) settings (normally in the range of 20 to 60 kilohertz) may be selected via
the “SET UP” or the “QUIK SET” menu options. It is recommended that adjacent loops
have a frequency separation of at least 5 KHz.
2.1.3.1 FREQUENCY STABILITY GR APH
In the Frequency display mode the LCD screen also displays a frequency stability graph
and Q∆f value that allows you to analyze each frequency level to ensure proper selection of
frequency levels. The XY graph displays detector frequency samples with respect to the
reference. The channel reference is in the center of the graph. A variation from the center
of the graph depicts frequency instability on the channel.
Basically a thin smooth graph offers a more optimum frequency selection over a thick or
uneven line. For optimal operation, select the frequency level with the lowest value of Q∆f.
For values of Q∆f higher than 15-20, the Noise Filter option (see Section 2.1.3.2) should be
considered.
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ORACLE S1E and ORACLE S2E
Operations Manual
2.1.3.2 NOISE FILTER
For installations where the effects of cross-talk or resulting frequency instability are higher
than normal, additional noise filtering can be applied. Three levels of filtering are provided;
Normal, Maximum, and Off. The Maximum level is intended for installations with a high
level of cross-talk between loops where the frequency separation between adjacent loops
is not adequate for reliable operation. Setting the filter mode to Off is intended only for high
speed applications where minimum response time delay is required.
2.1.4 SENSOR MODES (ORACLE EC SERIES)
The Oracle EC series support three different inductive loop types; normal loop, point probe,
and rail mode. The Normal sensor mode is used with conventional inductive loops. The
Probe mode and Rail mode are for special applications.
2.1.4.1 PROBE MODE (ORACLE EC SERIES)
This mode is intended to support the use of point probe type micro sensors. A probe type
micro sensor is a transducer that converts changes in the vertical component of the earth’s
magnetic field to changes in inductance. The resulting change in inductance can then be
sensed by the Oracle EC series detector. Note that when operating in the Probe mode, the
50% pie graph level is reported as a value of 8 instead of 10 (see 2.1.7.5). A gap setting is
also provided for optimizing the distinction between closely spaced cars and large trucks,
see 3.7.5.1.
2.1.4.1.1 PROBE MODE THRESHOLD
The Probe Mode Threshold allows the user to adjust the hysterisis value for the call to nocall threshold. The default value is 20% of the call strength which is suitable for most probe
applications.
2.1.4.2 RAIL MODE (ORACLE EC SERIES)
This mode is intended to support the use of inductive loops in a light rail application. Rail
applications often produce residual effects on a train car exit from the detection zone that
can cause the detector to remain in the call state. In this case the loop inductance does not
immediately return to the tuned reference value for a short time period.
2.1.4.2.1 RAIL MODE THRESHOLD
The Rail mode allows the user to adjust the hysterisis value for the call to no-call threshold.
The default value is 20% of the call strength which is suitable for most rail applications.
2.1.5 PRESENCE / PULSE MODES
For each channel, a Presence or Pulse output mode may be selected via the “SET UP”
menu. If Presence mode is selected then a choice of Short, Long, or User defined presence
can be selected (see 3.2.4.1). Short Presence is defined as 30 minutes and Long Presence
is defined as 120 minutes. In User Defined mode, a user setting can be applied. On the
expiration of short or long presence time a detect CALL will be reset. In User defined mode,
the detect CALL can be selected to reset on timer expiration or at the next End-Of-Green
(EOG) signal after the expiration of the timer. The green signal is applied to the Timer
Control input via the edge card connector.
In Pulse mode, a 125 ms ± 25 ms width pulse will be output for each vehicle entering the
loop. The pulse length can be programmed from 125 ms to 60 minutes.
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ORACLE S1E and ORACLE S2E
Operations Manual
2.1.6 DELAY AND EXTEND FUNCTION
2.1.6.1 CALL DELAY TIMER
For each channel, a delay time of 0.1 seconds to 5 minutes can be set via the “SET UP”
menu. Call Delay time starts counting down when a vehicle enters the loop detection area.
Delay time can be overridden by a green signal at the Timer Control input.
2.1.6.2 CALL EXTENSION TIMER
For each channel, an extension time of 0.1 seconds to 1 minute can be set via the “SET
UP” menu. Call Extension time starts counting down when the last vehicle clears the loop
detection zone. Any vehicle entering the loop detection zone during the Extension time
period causes the channel to return to the DETECT state. The Extension timer can be
enabled upon the following options:
2.1.6.2.1 EXTEND ALWAYS MODE (ALWAYS)
When a vehicle leaves the loop zone and the loop zone becomes vacant, then the extend
timer will be enabled and CALL output will be maintained until the timer times out.
2.1.6.2.2 EXTEND ON-GREEN MODE (ONGREEN)
If the Timer Control input is inactive and the loop becomes vacant after a vehicle exits, then
the Extend timer will not be enabled and the CALL output will be cleared. When the Timer
Control input is active and the loop becomes vacant after a vehicle exits, then the Extend
timer will be enabled and the CALL output will be maintained until the timer times out. While
the timer is running, the DETECT LED will flash 4 times a second. If the timer is running
and the Timer Control input becomes inactive, the timer will be disabled and the CALL will
be cleared. If the timer is running and a vehicle is detected, the timer will be disabled and
the CALL maintained until the loop again becomes vacant, at which point the extend
process repeats.
2.1.6.2.3 EXTEND DISCONNECT (DISCNNCT)
While the Timer Control input is inactive, the Extend/Disconnect timer is not used and a
CALL is output whenever a vehicle is detected. If the Timer Control input is active and the
loop becomes empty after a vehicle exits, then the Extend Disconnect timer will be
enabled. While the Extend Disconnect is running, the detect LED will flash 4 times a
second. If a vehicle is detected while the Extend Disconnect is running the Extend
Disconnect timer will be disabled. If the Extend Disconnect timer times out while the Timer
Control input is active, then the CALL output will be disabled and future detects ignored.
When the Timer Control input becomes active, the CALL output will be enabled again.
2.1.6.2.4 EXTENSION PLUS DISCONNECT (EXT+DIS)
While the Timer Control input is inactive, the Extend/Disconnect timer is not used and a
CALL is output whenever a vehicle is detected. When the Timer Control input becomes
active the Extend/Disconnect timer is enabled. While the Extend/Disconnect timer is
running, the detect LED will flash 4 times a second. If a vehicle is detected while the
Extend/Disconnect timer is running the Extend/Disconnect timer will be disabled. If the
Extend/Disconnect timer times out while the Timer Control input is active, then the CALL
output will be disabled and future detects ignored. When the Timer Control input becomes
active, the CALL output will be enabled again.
2.1.6.3 TIMER CONTROL INPUTS
Timer Control inputs are provided for each channel to modify the operation of the Delay
and Extension functions. The application of an AC voltage will inhibit the Delay timing
function and/or enable the Extend timing function as described in sections 2.1.6.1 and
2.1.6.2. When the Timer Control input for a channel is active (True) a “G” character is
displayed on the main display screen if timing functions are enabled.
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