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100909 Linear /OSCO Page 2
pn 888-1505-001 19 Railroad Avenue, Casnovia, MI 49318
Tel: 800-333-1717 Web: www.operatorspecialty.com
DIP Switch. The default position is Fail-Safe (switch 3 in the OFF position). If a loop fault occurs while in the Fail-Safe mode, Output A activates. If a
loop fault occurs in the Fail-Secure mode (switch 3 is in the ON position) Output A will not activate.
Dip Switch 4 & 5 – Output “B” Modes (pin 6): Output B has 4 selectable output modes: Loop Fault, B same as A, Pulse on Exit, Pulse on Entry.
For Loop Fault Mode, if the loop fails the Output B will conduct indicating the failure. For either Pulse on Entry or Pulse on Exit a 250 millisecond
pulse is generated on Output B. The default position is set to Loop Fault (switch 4 = 0FF & switch 5 = OFF).
SWITCH Loop Fault B same as A Pulse On Exit Pulse On Entry
4 0FF ON OFF ON
5
0FF
OFF
ON
ON
Dip Switch 6 – Delay Timing: The default position is set to OFF. When switch 6 is in the ON position, a 2-second “detect” delay feature will delay
outputs A & B for a period of 2 seconds after a vehicle has entered the detection zone. Note that the DEFLECTOMETER will display the letter “d” for
“Delay Time”. If the vehicle does not remain in the loop zone for the full 2 seconds the delay will terminate and no DETECT output will be produced.
Dip Switch 7 – Output “A” Modes: Output A has 2 selectable output modes: Infinite Presence and Normal Presence. The default position is Infinite
Presence (switch 7 = OFF). In the Infinite Presence mode, a presence output will always be maintained as long as a vehicle is over the loop and
power is not removed for more than approximately 3 seconds. In the Normal Presence mode (switch 7 = ON), the output hold time is between 5
minutes minimum and 3 hours maximum. Hold time depends on loop geometry; number of wire turns in the loop, vehicle size, and position of the
vehicle relative to the loop.
Dip Switch 8 – Sensitivity Boost: The default position is set to OFF. When switch 8 is in the ON position and when a vehicle enters the loop zone,
the detector sensitivity is boosted to a higher level than the vacant loop setting. The boosted sensitivity remains throughout the DETECT period.
When the vehicle leaves the loop zone, the sensitivity returns to the vacant loop setting. This feature is designed to automatically increase sensitivity
only during the DETECT output period. This feature aids in preventing dropouts during the passage of high bed vehicles and is particularly useful in
sliding gate situations.
Detector Diagnostics: The detector continuously checks the integrity of the loop. The system is able to detect open or shorted circuit loops, or
sudden changes in inductance exceeding 25% of the nominal inductance. If a fault is detected, the POWER and DETECT LED’s continuously emit a
sequence of flashes. Additionally, the 7-Segment DEFLECTOMETER displays the letter “F” indicating a current loop fault. Each type of fault is
identified by a different flash sequence:
Flash Sequence
Fault
1 flash Open Circuit Loop.
2 flashes Shorted Circuit Loop.
3 flashes 25% excessive change in inductance.
If the Open or Shorted fault condition self heals, the DETECT LED and 7-Segment DEFLECTOMETER will return to normal operation. Only the
POWER LED will continue to flash with the sequence signifying the type of fault that was last detected. In the case of the excessive inductance
change fault, the unit will retune to the new inductance after a period of two seconds and continue operation. The fault condition will be indicated by
the flash sequence of the POWER LED. Pressing the “Reset” button will reset the detector and clear the flash sequence from the DETECT LED. If
you want to review the last loop fault condition, simply press and hold the “Reset” button for 2 seconds and the DETECT LED will display the
previous loop fault condition.
Pin Assignments:
Pin
Function Pin Function
1 Loop 6 Output B
2 Loop 7 Output B Inverted
3 Power (12-24VDC, 24VAC) 8 Output A (Presence Output)
4 No Connection 9 Power (12-24VDC, 24VAC)
5 No Connection 10 Common
Note: Power may be applied on either pin 3 or 9, or both
Environmental:
Operating Temperature Range: -34
o
C to +74
o
C (-30
o
F to 165
o
F)
Humidity Range: 0 to 95% relative.
Mechanical:
Dimensions: 2.30” (5.84 cm.) high x 2.75” (6.98 cm.) wide x 0.80” (2.03 cm.) thick
Weight: 1.50 oz. (42 g.)
Power Supply:
10 to 30 VDC or 14 to 26 VAC
8 mA maximum in No Call state.
9 mA maximum in Call state.