ULTRA-II

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Overview of the ULTRA-II Vehicle Loop Detector

The ULTRA II vehicle loop detector is a compact, energy-efficient design with a user-friendly, detachable 7-pin terminal block that simplifies set-up.

This vehicle loop detector provides a relay output indicating vehicle presence or pulse on entry. The ULT-II also has an option for automatic sensitivity boost (ASB) which causes the sensitivity to increase following initial detection. This feature is useful to prevent dropout when detecting high-bed vehicles.

The ULT-II is easy to install and operate. Sensitivity selection is simplified by the ULTRAMETER™ display. Ten sensitivity settings allow for finer adjustment of the detection level, and four frequency selections help to prevent crosstalk in multi-loop applications.

Features of Our ULTRA II

ULTRAMETER™ displays optimum sensitivity setting / diagnostic aid
Fail safe in the event of a loop failure
Fail secure in the event of a power loss
Frequency count/reset switch
10 sensitivity settings
Loop diagnostics
4 operating frequencies
Lightning and surge protection
Frequency counter
Fail safe operation
CE compliant

Power Supply	12-24 VDC/AC
Current Draw	18 mA max.
Dimensions	L=3.0in (76 mm) W=0.9in (22 mm) H=2.75in (70 mm)
Weight	0.15 lbs.(69g)
Loop Inductance	20…2000µH (Q factor >5)
Environmental Tracking	Automatic Compensation
Operating Environment	-40° C to 82° C (-40°F to 180° F) 0 to 95% relative humidity
Housing Material	ABS
Connection	7 position screw terminal
Loop Compensation	Isolation transformer allows operation with poor quality loops
Loop Frequency	4 settings (low, med-low, med-hi, high)
Surge Protection	Loop circuitry protected by surge suppressors
ULTRAMETER Display	Indicates optimum sensitivity level
Ouput	Relay 1A @24 VDC Common, Normally Open, Normally Closed
Power/Loop Fault Indicator	Green LED
Detect/Frequency Count Indicator	Red LED
Frequency Count	To aid in detector set up and prevention of crosstalk
Pulse/Presence	Allows the relay output to send either a pulse output or have constant presence
Sensitivity	10 levels, 0-9
ASB (Automatic Sensitivity Boost)	Increases sensitivity after initial detection to prevent dropout due to high bed vehicles