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TANK LEVEL ALARM
LOW FLOW ALARM

When the FLOW ALARM detects low liquid flow, it sounds the alarm with a loud beeper and flashing LED. Suitable for pulsing pumps or intermittant pump operation so you know if your dosing pump fails.

IMG0983

DETECTS HIGH OR LOW FLOW...
 

Suited for pulsing flow from diaphragm pumps.

Loud beeping cuts through the loudest industrial noise.

Rugged. Built for rough, wet and corrosive environments. NEMA 4X waterproof enclosure.

Suitable for corrosive chemicals. Polypropylene housing, monel spring.

Convenient to install with a piggyback plug or receptacle box.

Convenient test button to check function.

Ultra low power consumption. Battery lasts for 10n years iwth tandby current at only 11 micro-amps.

Power fail detection.. Alarm can also detect power failure.

Auxilliary outputs - contact closure or 9VDC power to trigger autodialers, wirless transmitter or a building alarm system.

FLOW ALARM FA-3 IS MOUNTED DIRECTLY ON A PIPE

OPERATION
Two modes of operation: one to detects any flow failure for pumps that must run 24/7. Another mode meant for controllers only gives an alarm when power is supplied to your pump or solenoid. The flow alarm senses power from your pump controller, then waits for 10 seconds for flow to become established. If no flow is detected after this time, then an alarm is given. The alarm is a very LOUD warbling audio alarm that cuts through any noise, and a flashing LED.

PULSING FLOW
Pulsing flow from diagphragm pumps does not bother the unit. The circuit buffers the readings so fluctuations are filtered. After 10 (selectable) of no-flow, the unit responds with an alarm.

SENSING METHOD
T
he FLOW ALARM uses a shuttle type switch to detect when the flowrate falls below 300 ml/min. The liquid impinges on the switch to physically move it so the magnets are detected by a reed switch.

SILENCING ALARM
During an alarm, the green button can be pushed to temporarily silence the alarm. An optional snooze-alarm feature sounds the alarm again after 30 mins

TEST BUTTON
When there is no alarm condition the button serves to test the battery power and the circuitry. LED flashes and buzzer sounds while button is pushed.

POWER FAILURE
For applications where flow must be maintained constantly the FLOW ALARM will alarm if there is no power or if there is low flow.

HIGH FLOW
There is a jumper setting on the pcb that will reverse the logic and allow the Flow Alarm to give an alarm when flow is higher than 300 ml/min.

LOW BATTERY ALARM
The ultra-low power consumption allows, the included Lithium batteries to last for 10 years. If the battery voltage is low, an alarm sounds twice per minute.

MATERIALS
The housing and shuttle are polypropyelene. There is a monel spring to push the shuttle in the "no flow" position so it can be mounted non-vertically.

 

MODELS AVAILABLE

  • FA-3 is installed directly on your pipe. Piggyback power cord is 10 feet long. Waterproof.
     
  • FA-4 is convenient when the AC power is a long distance from the flow switch. The electronics box is connected to teh flow switch by a 20 foot cable.

Modification can be done for installations using many different volatages such as 12VDC, 12VAC, 230VAC etc.
 

INSTALLATION NOTES

  • Flow switch fitting size is 3/4" NPT. Can be adapted to 1/2" using reducing bushings. (included)
     
  • Flow switch can be mounted in any orientation.
IMG_0240
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MODEL FA-4 WHEN AC POWER IS DISTANT FROM FLOW SWITCH

SPECIFICATIONS

  • Power consumption (idle) ...............11 micro-amps
  • Power consumption (alarm)............ 30 mA
  • Maximum current.............................15A
  • Piezo buzzer volume ..................... 103 dB at 2 feet
  • Piezo buzzer diaphragm ................ stainless steel
  • Operating temperature.....................-40C to 65C
  • FA-2 Box size (mm)........................ 105 tall x 67deep x 55W
  • FA-2 Box material............................ polystyrene
  • Weight without battery ................... 181g
  • Minimum flowrate detected............. 300 ml/min (0.1 GPM)
  • Low battery alert behavior............... 5 sec. beep every 30 sec.
  • Fitting size....................................... 3/4" NPT (female)
  • Maximum pressure.......................... 120 psi
  • Pressure drop.................................. 10 psi @15L/min
  • Thread size ..................................... 3/4" N.P.T.
  • Waterproof rating ............................ NEMA 4X

INSTRUCTIONS FA-3
INSTRUCTIONS FA-4
_______________________________________________________________________________


$185

Model
1/2" NPT adapter needed?

Multiconductor cable
DRUM ALARM WIRELESS

CLICK TO ENLARGE

Questions?

Phone 585-301-0970
email: peter@drumalarm.com

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Engineering RedBall1 Gizmo INSTRUCTIONS FA-3 INSTRUCTIONS FA-4