FUEL TANK OVERFILL ALARM beeps loudly and LED flashes if liquid level is high.

MODEL IS-T FUEL TANK OVERFILL

Monitor fuel tank level in hazardous locations

  • battery powered so its always working.

     

  • Replaceable Lithium battery included lasts for years.

     

  • Loud buzzer is 101dB @ 2 ft. (like a smoke alarm)

     

  • Rugged metal construction. Built for rough, wet and  outdoor locations.

  • Bright flashing LED  visible in daylight.

     

  • Low battery built in
  • Silencing/test button.

     

  • Hazloc Class 1, Div. 1. groups C and/or D. 60079-0 and 60079-11.   Zone 0.

EASY TO INSTALL. Mounts on any fuel tank with either a hand-adjustable depth PVC tank mount.  or an optional 2″ NPT threaded plug is available if needed.
Battery powered so it can be located anywhere, instantly.

OPERATION

When there is a high liquid level condition, the buzzer sounds and the beacon LED flashes. Press the button to silence the buzzer, and the LED continues to flash as a reminder. This is the default mode although there are other behaviors available.  The 101 dB buzzer has a unique warbling sound is very arresting so it will be heard at long distances.

Different behaviors are field-selectable using DIP switches on the circuit board. Choose from:

  • 30-minute snooze alarm, (on/off)
  • tank filling mode (where it shuts off LED and buzzer until the next fillup)
  • auto/manual reset after level corrected
  • relay N.O./N.C.
  • delayed  relay outupt 15 minutes
 
CONSTRUCTION

Materials: stainless steel pipe and 0.70 specific gravity SS float switch is suitable for almost all fuels and flammable solvents.

Battery Power is uninterruptible and allows installation anywhere. No outlets, electricians, or inspectors needed. The Lithium batteries included and have a shelf life of 20 years.  Smart software allows these to sound for a month straight! In typical situations the batteries will last for many years. When the batteries do run low, a unique low-battery signal is given.  Batteries are user-replaceable in the hazardous location.

Durable Aluminum electronics enclosure.
Pipe and float switch are 316 stainless steel construction.

Harsh Weather rated temperature range is +60ºC to -40º C. [140ºF to -40ºF]

Grounding lug is included for ground to the bulk fuel storage tank.

 

IS-T WITH OPTIONAL FLOAT GUARD

IS-T VIEW OF THE LABEL
  • Stainless float switch S.G…………………..0.75
  • Polypropylene float switch S.G………….0.60
  • Enclosure material………………………….. Aluminum
  • Operating temp (ambient)………………. -40 to 60ºC (-76-140ºF)
  • Maximum temp. (liquid)…………………..149ºC [300ºF]
  • Buzzer volume…………………………………101dB @ 2ft.
  • Battery capacity………………………………. 2400 mA-hr
  • Ingress protection……………………………. IP65
  • Lens material……………………………………Lexan
  • Stainless steel…………………………………..316 except retaining rings are type PH 15-7 Mo
  • Current consumption during alarm…..30mA
  • Relay current…………………………………….80mA max.
  • Battery chemistry……………………………..Lithium Thionyl Chloride
  • Battery pack voltage…………………………7.2VDC
  • Lithium weight…………………………………1.2g (per pack of 2 cells)
  • Cable capacitance (if applicable)………30pf/ft
  • Cable inductance (if applicable)……….0.2mH/ft

Specifications PDF

CSA has certified this unit to the following standards:

  • CSA CAN/CSA C22.2 No. 0-10
  • CSA CAN/CSA-22.2 No. 60079 0-15
  • CSA CAN/CSA-22.2 No. 60079-11-14
  • CSA CAN/CSA-22.2 No. 1010-1012
  • C22.2 No. 60529:16
  • ANSI/ISA-60079-0 (12.00.01)-2013
  • ANSI/ISA 60079-11 (12.02.01)-2014
  • ANSI/UL 61010-1, 3rd Ed.
  • UL913, 8th Ed.

Ex ia IIB T4 Ga 
Class I, Zone 0, AEx ia IIB T4 Ga 
Class I, Div. 1 Groups C and D T4, IP65

CSA File number  263009
CSA file lookup

The wetted parts are available in 316 stainless steel except the retaining rings on the float switch which are 15-7SS.  Click here for chemical resistance chart.

The alternative construction is polypropylene which is suitable for temperatures up to 200 deg. F   [93C]  Click here for a chemical resistance chart.

We stock other materials too like PTFE and Kynar.  Please call us for more information on these.

Here is a breakdown of a typical part number.

Intrinsically Safe Tank model numbering

 EXAMPLES
IS-T-SS-12      IS-T-SS-18     IS-T-SS-24      IS-T-SS-36     IS-T-SS-48     IS-T-SS-60          (stainless pipe + stainless float)
IS-T-SB-12     
IS-T-SB-18     IS-T-SB-24     IS-T-SB-36     IS-T-SB-48     IS-T-SB-60          (stainless pipe + BUNA float)
IS-T-PP-10     IS-T-PP-20     IS-T-PP-30     IS-T-PP-40     IS-T-PP-50                                 (polypropylene pipe + PP float)      

Order Here

Stainless Pipe and Float Switch
  (IS-T-SS)
Length

OPTIONS

Relay Output

A relay output for signals sent to an approved I.S. barrier. 80mA max.  10ft cable is standard.
[IS-RLY] $54

Welded Plug

A 2″NPT  stainless steel plug welded to the pipe. Depth is not adjustable.
[RB-SS] $56

Extra cable

Extra cable length over the standard 10ft length. Heavy 0.032″ jacket for superior durability, eight stranded conductors x 24 gage.
[C-8] $0.66/ft

Replacement Battery

This is the only battery that may be used with GIZMO I.S. alarms
[BT-IS] $45

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