Georg Fischer 2280 Specifications
2280 Tuning Forks
Type 2280 Tuning Forks are suitable for level detection
of liquids or granular, powdered solids. Mounted on
tanks filling / emptying can be controlled using these
devices just as well they can generate fail-safe alarms
providing overfill- or dry run protection.
Features
• Maintenance free vibrating principle
• Independent of the liquid conductivity, dielectric
constant, viscosity, pressure and temperature
• Selectable sensitivity
• Relay or electronic output
• Temperatures up to 130 degrees
• ATEX and WHG approvals
• IP67, 65/68 protection
The operation principle is based on the electronic circuit
exciting the fork probe making it vibrate. As the medium
reaches and covers the fork its vibration changes. The
electronics senses the change of vibration and gives
output signal after a selected delay.
CE, WHG, ATEX, RoHS
Applications
• Potable Water
• River Water
• Cooling Water
• Demineralized Water
• Water/Glycol Solutions
• Chemicals
Dimensions
89
0
1
1
~
ø40
SW=41
BSP / NPT 1"
0
1
1
~
ø40
SW=41
BSP / NPT 1"
2xM20x1.5
1
1
1
2 x NPT 1/2"
1" BSP
(2.7 in. or 4.7 in.)
69 mm or 125 mm
(2.7 in. or 4.7 in.)
69 mm or 125 mm
1" NPT
S=41
(2.7 in. or 4.7 in.)
69 mm or 125 mm
Specifi cations
General
Type 2280-Y-YYYC-Y 2280-Y-YYYO-Y 2280-Y-YYYT-Y
Probe Length 69 mm or 125 mm (2.7 in. or 4.9 in.)
Operation mode indicator
Environmental
Process Temperature –40 °C … +130 °C (-40 °F… +266 °F)
Ambient Temperature -40 °C…+70 °C (-40 °F…+158 °F) / -30 °C…+70 °C (-22 °F…+158 °F)
Process Pressure (absolute) 4 MPa (40 bar) 580 psi
Min Medium Density
Max Medium Viscosity
Enclosure
Sensor Stainless Steel DIN 1.4571
Housing Stainless Steel DIN 1.4571 PBT
Ingress protection IP67
Process Connection 1 ” BSP / NPT
Electrical
Switching Function 2-wire AC; 3-wire PNP-NPN 1 SPDT relay
Output Voltage / -Current AC 9mA free, 14 mA immersed
3-wire max. 350mA, <4.5V (on)
Power Supply 12…55 V DC or 20 … 255 V AC, 50/60 Hz 20 ... 255 V AC and 20 ... 60 V DC
Response Time
Power Consumption 0.6 W AC: 1.2 … 17 VA; DC: <3 W
Connection Cable PVC 5x0.5mm2, 3m DIN Connector Terminal
Protection Class III Class I
Standards and Approvals
ATEX approval ATEX II 1 G Ex ia IIC T6, IP68
General Approvals CE
Bi-color LED
≥ 0.7 kg/dm
≤10'000 mm
≤ 0.5 s
3
2
/s (cSt)
250V AC, 8A AC1
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