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 ULTRA 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 ULTRA 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	12-30 VDC and 24 VAC (reverse polarity protected)
Current Draw	18 mA max.
Dimensions	L=3.0in (76mm) W=0.9in (22mm) H=2.75in (70mm)
Weight	0.15 lbs.(69g)
Loop Inductance	20…2000µH (Q factor >5)
Environmental Tracking	Automatic Compensation
Operating Environment	-40° C…82° C (-40°F…180° F) 0…95% relative humidity
Housing Material	PVC (Green)
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, 0-9 Diagnostic aid
Ouput	Relay 1A@24VDC 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 cross-talk
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