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VEGAPULS C 21

Wired radar sensor for continuous level measurement

For standard measuring tasks, IP66/IP68, Type 6P


Application area

Axial cable outlet, measuring range up to 15 m, accuracy ±2 mm, 4 ... 20 mA, HART, SDI-12 or Modbus output, Ex-approval optional
VEGAPULS C 21 is the ideal sensor for non-contact level measurement in simple applications where a high degree of protection is required. It is particularly suitable for use in water treatment, pumping stations and rain overflow basins, for flow measurement in open channels and level monitoring. In bulk solids the sensors are used in small bulk solids silos or open containers.

Your benefit

  • Exact measurement results independent of medium, process and environmental conditions
  • Maintenance-free operation due to non-contact 80 GHz radar technology
  • High accuracy and reliability

Suitable accessories

Mounting bracket with adjustable sensor holder

Mounting bracket for ceiling mounting

Mounting angle with adjustable bracket

Further accessories

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Application
Technical specifications
Documentation
Accessories
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Other applications

Mixing and equalization ponds

Pegelmessung im Misch- und Ausgleichsbecken

Water level measurement in the mixing and equalisation pool

To the application

Sludge thickening tank

Füllstandmessung im Schlammvorlagenbehälter

Level measurement in a sludge concentration tank

To the application

Inlet channel

Durchflussmessung im offenen Gerinne

Flow-rate measurement in open channels

To the application

Coarse and fine screens

Pegelmessung zur Rechensteuerung

Differential water level measurement for control of screen raking

To the application
Technical specifications
Measuring range - Distance
  • 15 m [Meter - Foot]
Process temperature
  • -40 ... 80 °C [°C - °F]
Process pressure
  • -1 ... 3 bar [Bar - kPa - psi]
Accuracy
  • ± 2 mm
Frequency
  • 80 GHz
Beam angle
Materials, wetted parts
  • PVDF
Threaded connection
  • G1½ / G1, 1½ NPT / 1 NPT, R1½ / R1
Seal material
  • FKM
Protection rating
  • IP66/IP68 (3 bar), Type 6P
Output
  • 4 … 20 mA/HART
  • Modbus
  • SDI-12
Ambient temperature
  • -40 ... 80 °C
Approvals
Scope
  • ATEX / Europe
  • EAC (GOST) / Russia
  • IEC / worldwide
  • NEPSI / China
  • INMETRO / Brazil
  • CCOE / India
  • KTL Korea
  • CSA / USA and Canada
  • FM / USA and Candada
  • TIIS / Japan
  • UKEX
Explosion protection
  • Intrinsic safety "i"
  • Dust explosion protection through housing "t"
  • Encapsulation "m"
Ship approval
  • ABS
  • CCS
  • NK
  • RINA
Display & adjustment
Adjustment
  • PC, PACTware and DTM
  • Smartphone / Tablet / PC via Bluetooth

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Product catalog

Radar

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Product information

VEGAPULS C 11, C 21, C 22, C 23, 11, 21, 31

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Specification sheet

VEGAPULS C 21

4 … 20 mA/HART - two-wire

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Operating instructions

VEGAPULS C 21

4 … 20 mA/HART - two-wire

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Drawing generator

Generate 2D and 3D drawings for your specific configuration.

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Further downloads for this product

All documents and software for this product can be found in our Download Center.

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Controllers
Indicating instruments
Wireless communication
Separating instruments
Accessory

VEGAMET 141

1 x 4 … 20 mA sensor input, 1 x 4 … 20 mA current output, 3 x operating relay, 1 x fail safe relay (instead of operating relay), Ex approval, separator, ship approval, on-site display, turn/push button and Smartphone operation

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VEGAMET 142

2 x 4 … 20 mA sensor inputs, 2 x 4 … 20 mA current outputs, 3 x operating relay, 1 x fail safe relay (instead of operating relay), Ex approval, separator, ship approval, on-site display, turn/push button and Smartphone operation

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VEGAMET 341

1 x 4 … 20 mA sensor input, 1 x 4 … 20 mA current output, 3 x operating relay, 1 x fail safe relay (instead of operating relay), Ex approval, separator, ship approval, on-site display, turn/push button and Smartphone operation

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VEGAMET 342

2 x 4 … 20 mA sensor inputs, 2 x 4 … 20 mA current outputs, 3 x operating relay, 1 x fail safe relay (instead of operating relay), Ex approval, separator, ship approval, on-site display, turn/push button and Smartphone operation

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VEGAMET 841

1 x 4 ... 20 mA sensor input, 1 x 4 ... 20 mA current output, 3 x operating relay, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 842

2 x 4 ... 20 mA sensor inputs, 2 x 4 ... 20 mA current outputs, 3 x operating relay, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 861

1 x 4 ... 20 mA/HART sensor input, 2 x digital inputs, 1 x 4 ... 20 mA current output, 4 x operating relay, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 862

2 x 4 ... 20 mA/HART sensor inputs, 4 x digital inputs, 3 x 4 ... 20 mA current outputs, 6 x operating relays, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 391

VEGAMET391 Auswertgeraet und Anzeigeinstrument fuer Fuellstandsensoren

Measured value indication, simple control functions, remote enquiry of measured data. optimized for water/sewage water industry

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VEGATOR 141

Single channel signal conditioning instrument for level detection - 4 … 20 mA

Transmission of 4 ... 20 mA signals for level signalling

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VEGATOR 142

Double channel signal conditioning instrument for level detection - 4 … 20 mA

Transmission of 4 ... 20 mA signals for level signalling

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VEGADIS 82

External measured value display and adjustment for 4 ... 20 mA/HART sensors

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VEGADIS 176

Remote display for use in 4 ... 20 mA current loop

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VEGAMET 841

1 x 4 ... 20 mA sensor input, 1 x 4 ... 20 mA current output, 3 x operating relay, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 842

2 x 4 ... 20 mA sensor inputs, 2 x 4 ... 20 mA current outputs, 3 x operating relay, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 861

1 x 4 ... 20 mA/HART sensor input, 2 x digital inputs, 1 x 4 ... 20 mA current output, 4 x operating relay, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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VEGAMET 862

2 x 4 ... 20 mA/HART sensor inputs, 4 x digital inputs, 3 x 4 ... 20 mA current outputs, 6 x operating relays, 1 x fail safe relay (instead of operating relay), on-site display, 4-button and smartphone operation

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PLICSMOBILE T81

externe-GSM-GPRS-Funkeinheit

Measured data enquiry and remote parameter adjustment for a HART sensor

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VEGATRENN 141

Einkanaliger Speisetrenner für 4 … 20 m/HART-Sensoren

Single channel separator for 4 … 20 m/HART sensors

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VEGATRENN 142

Zweikanaliger Speisetrenner für 4 … 20 m/HART-Sensoren

Double channel separator for 4 … 20 m/HART sensors

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VEGATRENN 151

Einkanaliger Trennübertrager in Zweileitertechnik für 4 … 20 mA-Sensoren

Single channel separator in two-wire technology for 4 … 20 mA sensors

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VEGATRENN 152

Zweikanaliger Trennübertrager in Zweileitertechnik für 4 … 20 mA-Sensoren

Double channel separator in two-wire technology for 4 … 20 mA sensors

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Mounting bracket with adjustable sensor holder

Mounting bracket for ceiling mounting

Mounting bracket for plastic vessel

Mounting angle with adjustable bracket

Mounting bracket 200 mm with fixed sensor holder

Mounting bracket for cable mounting

Hygienic adapter (G1½“) suitable for VEGAPULS 11, 21, 31, VEGAPULS C 11, C 21, C 22 and VEGAPULS Air 41

Counter nut

Universal flange for VEGAPULS BASIC line

Alignment device for vessel wall mounting for radar sensors with 1½" thread

Alignment device for flange mounting, with movable sensor holder, for VEGAPULS C 11, 21, 23 of PP GF30

Threaded adapter 2" to 1½" suitable for VEGAPULS 11, 21, 31, VEGAPULS C 11, C 21, C 22 and VEGAPULS Air 41

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