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Further Information
  2. Product Overview
  3. Process sensors
  4. Level measurement
  5. Ultrasonic level measurement
  6. In chemically harsh environments
  7. UNAR 18I6903/S14G
Technical data
general data
special type
  • chemically robust
scanning range Sd
  • 100 … 1000 mm
scanning range close limit Sdc
  • 100 … 1000 mm
scanning range far limit Sde
  • 100 … 1000 mm
repeat accuracy
  • < 0,5 mm
resolution
  • < 0,3 mm
response time ton
  • < 80 ms
release time toff
  • < 80 ms
temperature drift
  • < 2 % of distance to target So
sonic frequency
  • 240 kHz
adjustment
  • Teach-in
alignment aid
  • target indication flashing
light indicator
  • yellow LED / red LED
approvals/certificates
  • Ecolab
electrical data
voltage supply range +Vs
  • 15 … 30 VDC
current consumption max. (no load)
  • 55 mA
output circuit
  • current output
output signal
  • 4 ... 20 mA / 20 ... 4 mA
output current
  • < 20 mA
load resistance +Vs max.
  • < 1100 Ohm
load resistance +Vs min.
  • < 400 Ohm
residual ripple
  • < 10 % Vs
short circuit protection
  • yes
reverse polarity protection
  • yes
mechanical data
type
  • cylindrical threaded
housing material
  • stainless steel 1.4435 (V4A)
coating active face
  • Parylene
material O-ring
  • FFKM
front of sensor durable against pressure
  • 6 bar, 20'000 cycle
width / diameter
  • 18 mm
height / length
  • 91,5 mm
connection types
  • connector M12
ambient conditions
operating temperature
  • 0 … +60 °C
protection class
  • IP 67
Downloads
data sheet
3D CAD data
assembly instruction
Certificates / approvals

Diagrams

typical sonic cone profile

(png | 88 KB)
Drawings

dimension drawing

(png | 38 KB)

connection diagram

(png | 86 KB)
Accessories
peripherals
11084376
Test unit for sensors analog & digital

Article no.: 11084376

  • Output via display (V or mA) or LED (PNP/NPN)
  • Teach-in of sensors with integrated Teach- button
  • Connection for plug in power supply (available as accessory)
10164264
Sonic beam deflector series 18 rectangular

Article no.: 10164264

  • Sonic beam deflector for ultrasonic sensors
mounting accessories
10151658
Sensofix series 18

Article no.: 10151658

  • Clamps made of stainless steel
  • Ball pivots made of galvanized steel
  • Mounting panel made of stainless steel
ZADAP-M18.STANDARD
Mounting bracket series 18

Article no.: 11172096

  • Material: Steel galvanized
ZADAP-M18.SHORT
Mounting bracket short series 18 (L design)

Article no.: 11171584

  • Material: Steel galvanized
ZADAP-M18.LONG
Mounting bracket long series 18 (L design)

Article no.: 11172095

  • Material: Steel galvanized
ZADAP-M18.SWING
Mounting bracket for adjustment for sensors series 18

Article no.: 11172110

  • Material: Plastic (ABS TERLURAN)
connectors and mating connectors
ESG 34AH0200G
Connector M12, 4 pin, straight, 2 m, shielded

Article no.: 11046262

  • connecting cable for connector type M12
  • 2 m
  • shielded
  • suitable for flexible cable carriers
ESG 34AH0500G
Connector M12, 4 pin, straight, 5 m, shielded

Article no.: 11046263

  • connecting cable for connector type M12
  • 5 m
  • shielded
  • suitable for flexible cable carriers
ESG 34AH1000G
Connector M12, 4 pin, straight, 10 m, shielded

Article no.: 10125473

  • connecting cable for connector type M12
  • 10 m
  • shielded
  • suitable for flexible cable carriers
ESW 33AH0200G
Connector M12, 4 pin, angular, 2 m, shielded

Article no.: 11046259

  • connecting cable for connector type M12
  • 2 m
  • shielded
  • suitable for flexible cable carriers
ESW 33AH0500G
Connector M12, 4 pin, angular, 5 m, shielded

Article no.: 11046260

  • connecting cable for connector type M12
  • 5 m
  • shielded
  • suitable for flexible cable carriers
ESW 33AH1000G
Connector M12, 4 pin, angular, 10 m, shielded

Article no.: 10126464

  • connecting cable for connector type M12
  • 10 m
  • shielded
  • suitable for flexible cable carriers
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