Leak Detector Model ULD-492P98

Level Alert Alarm

How does it work? The sensor ultrasonically recognizes the attenuation and dielectric properties of the liquid or air present. Digital sampling insures precise interpretation. The resulting output signal identifies the condition sensed.

When an alarm condition is sensed by Level Alert, an audible alarm sounds and a message pad flashes to inform the user why the alarm has sounded. A reset push-button silences the audible alarm. Thereafter, the message pad remains illuminated until the alarm condition has been corrected. Should another channel(s) sense an alarm condition, the audible alarm will again sound and the corresponding message pad will flash until reset/acknowledged by the operator. Each channel also has an output relay for actuating other relays, pumps, valves, etc.

ULD2 Sensor
ULD1 Sensor

Model ULD-492P98 Specifications

Number of Channels: 
Model ULD2-492P98
SENSORWATER
SPARE*OIL/GAS
4 with LED illuminated message pads
     Leak / Liquid Presence Detector / Liquid Identifier 
Model ULD1-492P98
SENSORWATER
SPARE*PRESENT
4 with LED illuminated message pads
     Leak / Liquid Presence Detector 
* Spare channel may be used for high level or other alarm requirement.
Housing Size:1/8 DIN Panel Mount (Mounting Opening 3.63 X 1.78 inches)
Alarm Visual:Message flashes until alarm is silenced/reset and thereafter remains illuminated until alarm condition has been corrected.
Alarm Audible:Internal horn and relay with rear terminals for external horn, strobe or bell. (Contacts rated 0.5 amps @ 115 VAC, non-inductive).
External Horn Connection:Yes - (0.5 Amp @ 115 VAC) N.O. relay contacts
Internal Reset:"S" (silence/reset) Push-button on front panel.
External Reset:Yes -- rear terminal connections for remote reset push-button.
Power:115 VAC, (220 & DC optional)
Power Indicator:LED
Electrical Connection:Rear screw terminal block
Expansion:Yes -- Unlimited. Units may be combined to add additional channels.
Test Function:Yes -- front panel push-button. Up key tests channels 1 & 2. Down key tests channels 3 & 4
Output Relays:4 SPDT dry contact relays. Each channel simultaneously actuates an output relay when message pad is illuminated. (0.5 amps @ 115 VAC, non-inductive; 1 amp @ 30 VDC.)
Sensors:Intrinsically safe, detects and identifies Water, Oil/Gasoline and other Liquids, Chemicals, Reusable, NO CALIBRATION REQUIRED
Repeatability:2mm or better
Temperature-20 to 160F
Cable Length5000 Feet Max. - Supplied with 10 Feet

Notes: Enclosed 16 Channel System

Bulletin ULD-492P98 9/99


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