GIR (Floscan) Infra-Red Flow Alarm For Glass VA

GIR (Floscan) Infra-Red Flow Alarm For Glass VA

REF: DS1120

Available From: -

Floscan sensors use an infra-red beam across the glass flowtube of a Variable Area (VA) flowmeter. Passage of the float between the sensor arms is detected, and logic within the electronics determines whether the float is above or below the sensor position. Electronics inside the sensor module gives an open collector transistor output, suitable for external logic circuits.

Suitable for all gas flows, and liquid flows where the float is visible, the sensor is clipped to the back of the flowmeter frame, typically on a NG/NGX Series (normal 100mm scale) or LG/LGX series (miniature 30mm scale) VA meter.    
                       
Movement up and down the frame allows the sensor to provide a flow alarm at any point on the tube scale, as required. The sensor can also be supplied on GU or SGUV style flowmeters.

The optional mains interface and relay module is used to provide the DC power needed to drive the sensor electronics, plus a SPCO 8 Amp mains relay output. This relay acts as a slave to the transistor output from the sensor module. Each Floscan relay module has two output relays, and can be used to monitor two separate alarm sensors.

FEATURES

  • High or Low flow alarm
  • Intelligent: Knows whether float above or below sensor
  • Adjustable over full range of flowtube
  • Suitable for normal (NG/NGX) or miniature (LG/LGX) flowmeters
  • DC output direct to standard logic circuits
  • Optional mains interface relay module
  • ATEX approval (Directive 94/9/EC)
  • EMC approval (Directive 2004/108/EC)
 
Sensor TypeIR Beam break detection
Direction LogicPosition of float above/below sensor established on first detection of float after power up
Setting PositionHeld by spring clip anywhere in flowtube operating range
Temperature-5 to +50ºC
EnvironmentIP44 with cable exit downwards
Dimensions22 x 66 x 30 (HxWxD)
5mm space needed behind frame. Spacer provided.
Sensor Cable2m, 3 core screened
Cable FunctionsRed - positive
Black - OV common
White - Transistor output
Voltage Supply12V nominal, 8V - 26VDC range at 25mA
Output (Sensor Positioned
with Cable Exit Down)
Open circuit for low flow alarm, conducts for flow above switch point
Switch PointsFor falling float, top edge of float at centre line of sensor. For rising float, switching occurs when base of float passes centre line
ApprovalsATEX approval (Directive 94/9/EC)
EMC approval (Directive 2004/108/EC)
DocumentDownload
DatasheetDownload
SKUDescriptionStock LevelPrice /unitEnquireOrder
F58384Mains RelayMade to Order
This item has a 5 day lead time.
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FGIR1GSuitable for Size 1 tubes within gas applicationsMade to Order
This item has a 5 day lead time.
-
FGIR1LSuitable for Size 1 tubes within liquid applicationsMade to Order
This item has a 5 day lead time.
-
FGIR2GSuitable for Size 2 tubes within gas applicationsMade to Order
This item has a 5 day lead time.
-
FGIR2LSuitable for Size 2 tubes within liquid applicationsMade to Order
This item has a 5 day lead time.
-
FGIR3GSuitable for Size 3 tubes within gas applicationsMade to Order
This item has a 5 day lead time.
-
FGIR3LSuitable for Size 3 tubes within liquid applicationsMade to Order
This item has a 5 day lead time.
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