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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
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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
www.gfsignet.com
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Wiring
DIN Connector 3 Wire DC Version:
3
2
R
N
1
2
L
1
LOW-level limit switch HIGH-level limit switch
DC Cable Version 3 Wire DC:
PNP-wiring
brown
white
black
blue
Junction
box
+
R
-
LOW-level limit switch HIGH-level limit switch
PBT Enclosure Version:
brown
white
black
blue
Fail s afe
mode
123
Mains
Grounding
Status LED
1/2” NPT
M20 x 1,5 M20 x 1,5
HIGH
FAIL
SAFE
LOW
HIGH
LOW
U
AC
DC
L1N
+
R
-
Junction
box
SAFEFAIL
250VAC
250VAC
6A/AC1
8A/AC1
RED
GREEN
7
456
89
Output
1/2” NPT
brown
white
black
blue
Junction
box
-
R
+
L
1
3
R
N
1
NPN-wiring
brown
white
black
blue
Junction
box
-
R
+
LOW-level limit switch HIGH-level limit switch
DIN Connector 2 Wire AC Version:
3
2
LOW-level limit switch HIGH-level limit switch
R
1
N
2
L
1
AC Cable Version 2 Wire AC:
brown
blue
black
green/yellow
LOW-level limit switch HIGH-level limit switch
Junction
box
R
N
L
1
3
1
brown
blue
black
green/yellow
Junction
box
L
1
R
N
L
1
R
N
www.gfsignet.com
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Ordering Information
Mfr. Part No. Code Description
2280-S-5WBO-1 159 300 200 Length 69 mm (2.72 in.), Stainless Steel, Output 3-wire PNP-NPN,
2280-S-5WBC-1 159 300 201 Length 69 mm (2.72 in.), Stainless Steel, Output 3-wire PNP-NPN, cable,
2280-S-5WBO-2 159 300 202 Length 125 mm (4.92 in.), Stainless Steel, Output 3-wire PNP-NPN,
2280-S-5WBC-2 159 300 203 Length 125 mm (4.92 in.), Stainless Steel, Output 3-wire PNP-NPN, cable,
2280-S-5XWBO-1 159 300 210 Length 69 mm (2.72 in.), Stainless Steel, Output 2-wire AC, DIN connector,
2280-S-5XWBC-1 159 300 211 Length 69 mm (2.72 in.), Stainless Steel, Output 2-wire AC, cable, BSP
2280-S-5XWBO-2 159 300 212 Length 125 mm (4.92 in.), Stainless Steel, Output 2-wire AC, DIN
2280-S-5XWBC-2 159 300 213 Length 125 mm (4.92 in.), Stainless Steel, Output 2-wire AC, cable, BSP
2280-S-5WNO-1 159 300 220 Length 69 mm (2.72 in.), Stainless Steel, Output 3-wire PNP-NPN,
2280-S-5WNC-1 159 300 221 Length 69 mm (2.72 in.), Stainless Steel, Output 3-wire PNP-NPN, cable,
2280-S-5WNO-2 159 300 222 Length 125 mm (4.92 in.), Stainless Steel, Output 3-wire PNP-NPN,
2280-S-5WNC-2
159 300 223
DIN connector, BSP thread
BSP thread
DIN connector, BSP thread
BSP thread
BSP thread, ATEX
thread, ATEX
connector, BSP thread, ATEX
thread, ATEX
DIN connector, NPT thread
NPT thread
DIN connector, NPT thread
Length 125 mm (4.92 in.), Stainless Steel, Output 3-wire PNP-NPN, cable,
NPT thread
2280-S-5XWNO-1
2280-S-5XWNC-1
2280-S-5XWNO-2
2280-S-5XWNC-2
2280-S-5WBT-1 159 300 240 Length 69 mm (2.72 in.), Stainless Steel, PBT enclosure, 1 SPDT relay,
2280-S-5WBT-2 159 300 241 Length 125 mm (4.92 in.), Stainless Steel, PBT enclosure, 1 SPDT relay,
2280-S-5WNT-1 159 300 242 Length 69 mm (2.72 in.), Stainless Steel, PBT enclosure, 1 SPDT relay,
2280-S-5WNT-2 159 300 243 Length 125 mm (4.92 in.), Stainless Steel, PBT enclosure, 1 SPDT relay,
159 300 230
159 300 231
159 300 232
159 300 233
Length 69 mm (2.72 in.), Stainless Steel, Output 2-wire AC, DIN connector,
NPT thread, ATEX
Length 69 mm (2.72 in.), Stainless Steel, Output 2-wire AC, cable, NPT
Gewinde, ATEX
Length 125 mm (4.92 in.), Stainless Steel, Output 2-wire AC, DIN
connector, NPT thread, ATEX
Length 125 mm (4.92 in.), Stainless Steel, Output 2-wire AC, cable, NPT
thread, ATEX
BSP thread
BSP thread
NPT thread
NPT thread
Rev B (4/15)
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