Kobold DFT Rotating Vane Flow Meter

Kobold DFT Rotating Vane Flow Meter

Table of Contents

Deskripsi

Kobold DFT Rotating Vane Flow Meter Teknologi baling-baling telah membuktikan dirinya jutaan kali di seluruh dunia untuk mengukur dan memantau aliran berbagai media melalui perpipaan. Pengukur aliran/monitor KOBOLD bekerja dengan prinsip yang telah terbukti ini dan menawarkan banyak manfaat. Inti dari baling-baling KOBOLD baru adalah magnet cincin tertanam; itu tertutup rapat dari media aliran.

Ini mentransfer, dengan cara non-kontak, gerakan putar baling-baling ke sensor Hall yang terpasang pada casing (untuk menghemat ruang). Ini mengubah gerakan berputar menjadi sinyal frekuensi yang sebanding dengan laju aliran. Elektronik pengevaluasi KOBOLD hilir dapat mengeluarkan sinyal ini ke layar, mengubahnya menjadi sinyal analog (0(4) -20 mA, 0-10 V), atau menghitungnya. Ini juga dapat digunakan untuk beralih hingga dua kontak batas. Status siap dan kontrol relai nilai batas ditunjukkan oleh LED.

Desain modular monitor aliran dan alat ukur KOBOLD adalah sistem yang dapat diterapkan secara universal; itu cukup murah; dan membutuhkan ruang minimum saat beroperasi. Hasil pengukuran yang sangat presisi dapat dicapai, dalam kondisi pengoperasian yang berat bersama dengan elektronik KOBOLD.

Sistem dirakit dengan elektronik dan dikirim siap untuk diservis. Elektronik disesuaikan dan disetel untuk digunakan dengan sensor. Saat dipasang untuk rentang pengukuran lain, sistem dapat disesuaikan kembali dengan perangkat serupa kapan saja.

Spesifikasi Kobold DFT

Technical Details

Sensor

  • Akurasi pengukuran: 2,5% f. s. 5% f. s. (DFT-..0000)
  • Suhu sedang: -20…+80°C
  • Suhu sekitar: -20…+80°C
  • Maks. tekanan operasi: 5 bar (perumahan PTFE) 16 bar (perumahan kuningan)\
  • Maks. kehilangan tekanan: lihat tabel
  • Perlindungan: IP65

Material Kobold DFT

  • Perumahan/penutup: PTFE atau kuningan
  • Baling-baling: PTFE
  • Gandar: keramik Al2O3 atau safir
  • Bantalan: PTFE
  • Gasket: NBR (DFT-11..; DFT-16..) FEP-O-seal dengan silikon (DFT-13..; DFT-18..)
  • Panel depan dan belakang: aluminium, anodized hitam (DFT-13..; hanya DFT-18..; tidak bersentuhan dengan media)
  • baja tahan karat

Varian Electronics for Kobold 

1. Frequency output (OEM)

  • Power supply: 5-24 VDC
  • Power input: approx. 5 mA
  • Signal amplitude high: approx. power supply
  • Signal amplitude low: ≤ 0.2 V
  • Output loss: max. 2.5 mW
  • Electrical connection: connector DIN 43650
  • Pulse output: NPN, open collector, max.15 mA

2. Frequency output (option frequency divider)

  • Power supply: 24 VDC ± 20%
  • Power input: 40-50 mA
  • Signal amplitude high: approx. power supply
  • Signal amplitude low: ≤ 0.2 V
  • Output loss: max. 2.5 mW
  • Electrical connection: connector DIN 43650
  • Division factor (option): 0.25…2 factory set
  • Pulse output: PNP, open collector, max. 20 mA

3. Analogue output (L electronics)

  • Power supply: 24 VDC ±20%
  • Output: 0-20 mA or 4-20 mA, 3-wire or 2-wire (2-wire 4-20 mA only)
  • Max. load: 500 Ω
  • Electrical connection: connector DIN 43650

4. Analogue output (MA electronics)

  • Power supply:
    24 VDC +15% / -10%
    24/115/230 VAC ±20%
  • Power input: 3.5 W max.
  • Output: 0(4)-20 mA or 0-10 V (floating, 24 VDC non-isolated)
  • Max. load: 500 Ω
  • Electrical connection: 1.5 m cable connection or connector

5. Switching output (WM electronics)

  • Power supply:
    24 VDC +15% / -10% 2
    4/115/230 VAC ±20%
  • Power input: 3.5 W max.
  • Output: changeover contact, max. 250 V/5A
  • Contact resistance: <100 mΩ
  • Electrical connection: 1.5 m cable connection or connector

6. K electronics with digital display, MIN/MAX contact, analog output

  • Power supply: 24 VDC +15% / -10%
  • Power input: 5 W max.
  • Analog output: 0(4)-20 mA or 0-10 V
  • Max. load: 500 Ω
  • Switching output: MIN- and MAX-changeover contact, max. 24 V/2A
  • Hysteresis: 2.5% of the measured value
  • Electrical connection: 1.5 m cable connection

Kobold DFT Electronics

1. DFT-…Exxx (counter electronics)

  • Display: LCD module, 2 x 8-digit, illuminated, total, part and flow quantity; units of measurement selectable
  • Quantity meter: 8-digit
  • Analog output: (0)4…20 mA selectable
  • Load: 0…500 Ω or 0-10 VDC,
  • Load: > 100 kΩ
  • Relay outputs: 2 relays, max. 250 V/5 A/1000 VA
  • Control elements: 4 keys
  • Functions: reset, MIN/MAX-memory, flow monitor, part and total quantity monitoring, language
  • Power supply: 24 VDC ± 20%, 3-line
  • Power input: approx. 100 mA
  • Electr. connection: 10-pin cable connection or 2 x plug M12 (5-/ 8-pin)

2. DFT-…Gxxx (Dosage electronics)

  • Display: LCD module, 2 x 8-digit, illuminated, total, part and flow quantity; units of measurement selectable
  • Quantity meter: 8-digit
  • Dosage meter: 5-digit
  • Analog output:
    (0)4…20 mA selectable
    Load: 0…500 Ω or 0-10 VDC,
    Load: > 100 kΩ
  • Relay outputs: 2 relays, max. 250 V/5 A/1000 VA
  • Control elements: 4 keys
  • Functions: dosage (relay S2), start, stop, reset, fine dosage, correction quantity, flow monitor, total quantity monitoring, language
  • Power supply: 24 VDC ± 20%, 3-line
  • Power input: approx. 100 mA
  • Electr. connection: 10-pole cable connection or 2 x plug M12 (5-/ 8-pin)
Pulse Output DFT-13
Pulse Output DFT-13

Measuring/switching range:
0.2 – 2.0 … 3 – 60 l/min water
Connection: G ¼ … G ¾, ¼ … ¾” NPT
Material: PTFE
pmax: 5bar
tmax: 80°C
Accuracy: ±2.5 (5) % of full scale
Pulse output

 

Pulse Output DFT-11
Pulse Output DFT-11

 

Measuring/switching range:
0.2 – 2.0 … 3 – 60 l/min water
Connection: G ¼ … G ¾, ¼ … ¾” NPT
Material: brass
pmax: 16 bar
tmax: 80°C
Accuracy: ±2.5 (5) % of full scale
Pulse output

Measuring / switching range: 0.2 – 2.0 … 3 – 60 l/min water
Connection: G ¼ … ¾ female thread, ¼ … ¾” NPT female thread
Material: PTFE (housing), ceramic (axle)
pmax: 5 bar
tmax: -20 … +80°C
Output: 1x analogue (0)4 … 20 mA, 2x relays
Power supply: 24 VDC ±20 %, 3-wire
Accuracy: ±2.5 % of full scaleFields of Application

The KOBOLD meters/monitors are suitable for the following applications:

  • Cooling water monitoring
  • General mechanical engineering
  • Waste water treatment
  • All heavy goods industry
  • Chemical industry

Frequency/Pressure-loss Table

Measuring range
[l/min]
Brass housing PTFE housing
Oriface [mm] Frequency at max. value Pressure loss at max. value Oriface [mm] Frequency at max. value Pressure loss at max. value
0.2-2.0 2.0 approx. 70 Hz 0.8 bar 2.0 approx. 80 Hz 0.7 bar
0.5-7 4.3 approx. 85 Hz 0.6 bar 4.3 approx. 95 Hz 0.5 bar
1-16 5.9 approx. 130 Hz 0.8 bar 5.9 approx. 140 Hz 0.7 bar
2-36 9.0 approx. 130 Hz 0.8 bar 9.0 approx. 120 Hz 0.9 bar
3-60 13.5 approx. 85 Hz 0.8 bar 13.5 approx. 80 Hz 0.9 bar

Download Datasheet : Kobold DFT Rotating Vane Flow Meter

Sumber: kobold.com | inaparts.com

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