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Dixon Ads Overfill Overflow

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ADS Outalarms with Probe

Application :

Specifically designed for liquid terminal operation on batch loading and overfill protection, tank cars, tanks trucks, marine barges, suitable for open and closed dome


24”, 36”, 48” and 60” probe lengths standard, other lengths available


Wetted materials: 316 stainless steel, PTFE standard, other materials available

  • totally self-contained; no wires, tubing or external power
  • rugged weather and corrosion resistant construction
  • no moving parts, tip sensitive phase shift™ digital capacitance sensor for conductive and nonconductive fluid, conductivity sensor with integral splash shield
  • requires no calibration or adjustment
  • adjustable insertion length through a standard 1/2 ” NPT fitting
  • high intensity audible and flashing visual outputs
  • optional opto-isolated solid state contact output
  • full, hard graduated laser engraved rod
  • A100 operates up to 2500 hours on a single 9V alkaline battery
  • fail safe continuous battery monitor goes to alarm state on low battery
  • battery current drain < 0.23 ma during standby; < 50 ma in alarm state
  • minimum dielectric constant 1.7
  • temperature range: capacitance probe: -14°F to 250°F (-26°C to 121°C) high-temp capacitance probe: -14°F to 325°F (-26°C to 163°C)
  • activation point 1/4 ” above liquid surface
  • compatible with any liquid or dry bulk material with a dielectric constant of 1.7 or greater
  • horn intensity 101 dB at 2’
  • light output 3 each 3000 mcd high intensity flashing LED’s
  • pressure rating on standard unit: 50 PSI, consult Dixon® for applications up to 300 PSI
  • intrinsically safe design per ANSI/UL913 for Class I, Div I Groups A, B, C and D Hazardous Areas
Length Capacitance 250°F (121°C) max Hi-temp Capacitance 325°F (163°C) max Conductivity for conductive fluids
12” A100C12A A100HC12A A100CSS12A
24” A100C24A A100HC24A A100CSS24A
36” A100C36A A100HC36A A100CSS36A
48” A100C48A A100HC48A A100CSS48A
60” A100C60A A100HC60A A100CSS60A
72” A100C72A A100HC72A A100CSS72A
84” A100C84A A100HC84A A100CSS84A

ADS Spillguard™ Systems


shutdown and alarm system for tank cars, tank trucks, barges and ships, suitable for open and closed dome


standard cable lengths: 15’, 25’ and 50’, other lengths available
insertion lengths 4" to 60" standard, other lengths available


wetted materials: 316 stainless steel and PTFE standard, other materials available
controller housing NEMA 4X, NEMA 7, Explosion Proof, Class I, II, Groups B, C and D

  • rugged, explosion proof, weather, chemical and corrosion resistant
  • LED status lights visible through glass cover
  • inserts into tank through standard 1/2” NPT fitting
  • probe can be portable or permanently installed in the vessel
  • laser engraved graduated rod with ¼" graduations
  • probe-to-controller cable protected by stainless steel interlocking armor sheath and heavy duty latching connectors at both ends
  • fail safe design, unit trips in the event of an open or shorted cable or loss of power
  • choice of capacitance, conductivity, ultrasonic, temperature or float sensors
  • input power: 120 VAC, 240 VAC or 24 VDC, 2.5 watts
  • output relay de-energizes on high level, broken or shorted sensor cables or loss of power
  • sensor excitation open circuit voltage 8 VDC, short circuit current 8 MA with built-in FM approved barrier
  • optional self test feature, tilt and ground verification interlocks and latching circuit available
  • probe temperature range: -14°F to 212°F (-26°C to 100°C)
  • probe pressure rating: 50 PSI with standard fitting, consult Dixon® for applications up to 300 PSI
  • sensor suitable for Class I, II, III, Div 1, Groups A, B, C and D when used with supplied controller and cable lengths of 10,000' or less
  • output relay contacts 2 form C (2PDT) rated 2 amps at 120/240 VAC, 1 form C (SPDT) with optional latching circuit and reset switch
  • cable connectors designed for repeated mating meet IP 65 mechanical and environmental specifications
  • FM, CSA HAZ Loc Class I Div I, Groups B, C and D

A210 Spillguard™ Monitors

Monitor Options 24V DC 120V DC
A210 Spillguard™ monitor A210–24 A210–120
with bypass timer A210B–24 A210B–120
with external reset switch A210R–24 A210R–120

ADS Spillguard™ Probes

Capacitance Probes


for materials with dielectric constant > 1.7, liquids, powders, slurries


probe: 316 stainless
housing: NEMA 4X, IP66


• 1/2” NPT sliding fitting standard, 3/4 ” fitting optional
• open dome adapter and washout fitting available
• tilt sensor optional


•capacitance probe: 250°F (121°C) maximum
•high temp probe: 325°F (163°C) maximum

Length Capacitance High-Temp
12" A200PC12A A200PHC12A
24" A200PC24A A200PHC24A
36" A200PC36A A200PHC36A
48" A200PC48A A200PHC48A
60" A200PC60A A200PHC60A
72" A200PC72A A200PHC72A
84" A200PC84A A200PHC84A
  • for conductive fluids such as acids and water based mixtures

  • probe: 316 stainless, Hastelloy available for HCL service

  • housing: NEMA 4X, IP66
  • 1/2 ” NPT sliding fitting standard, ¾" fitting optional
  • open dome adapter and washout fitting available
  • pressure and tilt sensor options
  • single electrode protected in housing
  • dual electrodes exposed for
Length Single Electrode Dual Electrode
12" A200PCSS12A A200PCSSDP12A
14" A200PCSS24A A200PCSSDP24A
36" A200PCSS36A A200PCSSDP36A
48" A200PCSS48A A200PCSSDP48A
60" A200PCSS60A A200PCSSDP60A
72" A200PCSS72A A200PCSSDP72A
84" A200PCSS84A A200CPSSDP84A

Float Probes

  • for use with foaming, very low density, or highly viscousliquids

  • probe: 316 stainless, Hastelloy available for HCL service
  • housing: NEMA 4X

  • single point standard, dual or multi-level float available
  • open dome adapter and washout adapter available
  • A100 battery powered monitor

Length A100 Outalarm Float Probe A200 Float Probe
24" A100F24DA A200F24DA
36" A100F36DA A200F36DA
48" A100F48DA A200F48DA

Muti-Point Ultrasonic Probes

  • for use when multiple detection points are required such as dribble mode, pump shutoff and overfill alarm
  • Features:
    • Up to 5 sense points available
    • pressure sensor
    • ground verification
    • tilt storage probe only active in vertical operational position

    ADS Spillguard™ ultrasonic probes are built special order to customer specifications. Contact Dixon Bayco at 513-874.8499 to discuss with our technical specialists.

    Length Standard Outgauge Outgauge with J Bar
    2' A800OG2 A8000GJ2
    3' A800OG3 A8000GJ3
    4' A800OG4 A8000GJ4
    5' A800OG5 A8000GJ5

    ADS Outage Gauges

    • set level fill point for manual / visual fill control
    • measure outage requirements on mobile tanks
    • 316 stainless steel
    • open dome bracket
    LengthStandard Outgauge Outgauge with J Bar
    2' A800OG2 A8000GJ2
    3' A800OG3 A8000GJ3
    4' A800OG4 A8000GJ4
    5' A800OG5 A8000GJ5

    Setting Outage on Closed Dome with A100LT Locating Tab

    1. Screw washout adapter on to washout nozzle
    2. Withdraw gauge rod until tab touches inside shell of tank. Note reading on rod.
    3. Add desired outage to reading and push down rod to the calculated reading.
    4. The probe sensor is now at the desired outage.

    Setting Outage on Open Dome Operation

    1. Clamp bracket to vertical section of dome.
    2. Withdraw gauge rod until bar touches inside shell of tank. Note reading on rod.
    3. Add desired outage to reading and push down rod to the calculated reading.
    4. The bar is now at the desired outage.
    5. For tanks with manway protruding past shell, use J-bar gauge.

    ADS Gauge Rods

    • used to gauge liquid levels in any mobile tank
    • 1/2” x .065 weight hardened 316 stainless steel
    • laser engraved scale with 1/4” graduations
    • rods come in two sections that screw together at the midpoint
    • foot marks inscribed on rod at 1” intervals below the inch mark
    • heavy duty plastic handle
    Part NumberDescription
    ADS4R gauge rod, 4' length, one piece
    ADS8GR gauge rod, 8' length, two piece
    ADS12GR gauge rod, 12' length, two piece

    ADS Spillguard™ Cables

    • 3 or 5 pin connector
    • 316 stainless steel armoured cable or yellow rubber cable
    • custom lengths available, call 513.874.8499 or 877.582.3569 for more information
    Length 3 Pin 5 Pin
    15' A200CA3P15 A200CA5P15
    20' A200CA3P20 A200CA5P20
    25' A200CA3P25 A200CA5P25
    50' A200CA3P50 A200CA5P50
    Rubber Cable1
    Length 3 Pin
    25' A200CB3P25
    Note: For use with (-M) mini connectors only.

    ADS Parts and Accessories

    Part Number Description
    A100DA open dome adapter 1/2” NPT
    A100DB open dome adapter 3/4” NPT
    A100TTB Tank truck 3" wash-out adapter, 3/4” NPT
    A100ST self test fitting, 316 stainless steel, 3/4" NPT
    A100CA1050 1” cam and groove coupler and 1/2” NPT bushing, stainless steel
    A100CA1050V 1" cam and groove coupler with 1/2" NPT busing and 1" NPT vent tee, stainless
    A100SG-POLY A100 / 200 splash guard, with 1 1/8” diameter poly
    A100LT locating tab for A100 / 200 probes
    A100MTR replacement A100 monitor only
    A100CBLMTR cable to monitor adapter
    A2100CR-3 cable junction box 3-pin
    A210CR-5 cable junction box 5-pin
    A210PZH-24 A210 Piezo horn 24VDC
    A210-120TC tri color external signal light
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