Kem Kuppers' Carrier-frequency Pulse Amplifiers VT Series

VTE 02

The carrier frequency pickups detect the r.p.m. of KEM flow meters. Each passing of a tooth will be detected as contactless and produces a pulse at the output. Therefore each pulse corresponds to a fixed volume and the frequency corresponds to the volume flow. Versions with Push Pull output or NAMUR output (option: open collector output npn) are available.

The pickup is screwed into the meter via a thread M14×1.5 (option UNF ½”-20). Accordingly, the VTE 02 fit on all KEM measuring cells.

Features

Application

The VTE 02 are carrier frequency pickups for all ZHM, HM, SRZ, and LFM. Due to the wide frequency range (0.5 to 5,000 Hz), they work with all sizes.

For applications in hazardous areas, intrinsically safe versions with ATEX and IECEx certification for zone 1 and cCSAus certification for zone 0 and division 1 are available.

Specifications

Technical Data

• Supply Voltage: U_B: +5 up to 30 V DC, regulated, depending on the version
• Quiescent Current: I_R < 1 mA
• Frequency Range: 0.5 up to 5,000 Hz depending on the flow meter
• Ambient Temperature: -40 °C up to +80 °C [-40 °F up to +176 °F], depending on version
• Medium Temperature: -40 °C up to +150 °C [-40 °F up to +302 °F]
• Output Signal: Push-Pull, Open Collector (option) or NAMUR
• Ex Protection:
  • ATEX: II 2G Ex ia IIC T4 Gb
  • IECEx: Ex ia IIC T4 Gb
  • cCSAus:
    • Class I, Div. 1, Groups A, B, C, D; T4
    • Ex ia IIC T4 Ga
    • Class I, Zone 0 AEx ia IIC T4 Ga

VTE 03

The carrier-frequency pickups detect the r.p.m. of KEM flow meters. Each passing of a tooth will be detected contactless and produces a pulse at the output. Therefore each pulse corresponds to a fixed volume and the frequency corresponds to the volume flow. Versions with Push Pull output or NAMUR output (option: open collector output npn) are available.

The VTE 03 are directly plugged and screwed. There are suitable versions for all ZHM 01/1 up to ZHM 04.

Specifications

Technical Data Supply

• Voltage: U_B: +5 up to 30 V DC, regulated, depending on version
• Quiescent Current: I_R < 1 mA
• Frequence Range: 0.5 up to 5,000 Hz depending on flow meter
• Ambient Temperature: -40 °C up to +80 °C [-40 °F up to +176 °F], depending on version
• Medium Temperature: -40 °C up to +80 °C [-40 °F up to +176 °F]
• Output Signal: Push-Pull, Open Collector (option) or NAMUR
• Ex Protection:
  • ATEX: II 2G Ex ia IIC T4 Gb
  • IECEx: Ex ia IIC T4 Gb
  • cCSAus:
    • Class I, Div. 1, Groups A, B, C, D ; T4
    • Ex ia IIC T4 Ga
    • Class I, Zone 0 AEx ia IIC T4 Ga

VTE 04

The carrier-frequency pickups detect the r.p.m. of KEM flow meters. Each passing of a tooth will be detected contactless and produces a pulse at the output. Therefore each pulse corresponds to a fixed volume and the frequency corrresponds to the volume flow. Versions with Push Pull output or NAMUR output (option: open collector output npn) are available.

The VTE 04 are directly plugged and screwed. There are suitable versions for ZHM01/1 and ZHM 01/2 in cartridge construction, as well as for the LFM.

Another Article: LK18-DU30 Series Riko M18 Laser Photo Sensor W12L-2 series Sick Photoelectric Proximity Sensors Asiantool A1430 Electrical Rotating Connector Multi conductors Asiantool A1230 Electrical Rotating Connector Multi conductors Asiantool A1030 Electrical Rotating Connector

Specifications

Technical Data

• Supply Voltage: U_B: +5 up to 30 V DC
• Quiescent Current: I_R < 1 mA
• Frequence Range: 0.5 up to 5,000 Hz depending on flow meter
• Ambient Temperature: -40 °C up to +80 °C [-40 °F up to +176 °F], depending on version
• Medium Temperature: -40 °C up to +80 °C [-40 °F up to +176 °F]
• Output Signal: Push-Pull, Open-Collector (option) or NAMUR
• Ex Protection:
  • ATEX: II 2G Ex ia IIC T4 Gb
  • IECEx:
    • Ex ia IIC T4 Gb cCSAus: Class I, Div. 1, Groups A, B, C, D ; T4
    • Ex ia IIC T4 Ga
    • Class I, Zone 0 AEx ia IIC T4 Ga

VTE Ex

The carrier frequency pickups detect the r.p.m. of KEM flow meters. Each passing of a tooth will be detected contactless and produces a pulse at the output.Therefore each pulse corresponds to a fixed volume and the frequency corresponds to the volume flow. Suitable for the application there are versions with different outputs available: 3-wire npn, NAMUR, open collector and 3-wire pnp (not available for the Ex version).

The pickup is screwed into the meter via a thread M14×1.5 (option UNF ½”-20). Accordingly the VTE Ex fits on all KEM measuring cells. The electrical connection takes place via screw terminals in the housing.

Specifications

Technical Data

• Supply Voltage: U_B: +7 up to 29 V DC
• Quiescent Current: I_R < 4 mA
• Frequency Range: 3 up to 3,000 Hz depending on the flow meter
• Ambient Temperature: -20 °C up to +80 °C [-4 °F up to +176 °F] , depending on version
• Medium Temperature:
  • max. +120 °C [+248 °F] with a distance of at least 25 mm between the flow meter and electronic housing
  • max. +150 °C [+302 °F] with a distance of at least 65 mm between the flow meter and electronic housing
• Output Signal: frequency output (various modes)
• Ex Protection: II 2G Ex ia IIC T4-T6

VTD 03

 Accordingly, each pulse corresponds to a fixed volume and the frequency corresponds to the volume flow. The two output signals, phase-shifted by 90°, offer the possibility of a true forward/backward detection. Alternatively, the VTD 03 can give out the double frequency and a direction signal as well.

Specifications

Technical Data

• Supply Voltage: U_B: 5 up to 30 V DC, regulated
• Quiescent Current: I_R < 2 mA
• Frequency Range: 0.5 up to 5,000 Hz depending on the flow meter
• Ambient Temperature: -40 °C up to +60 °C [-40 °F up to +140°F], depending on version
• Medium Temperature: -40 °C up to +80 °C [-40 °F up to +176 °F]
• Phase Shift: 90 °
• Output Signal: Push-Pull or Open Collector (on request)
• Connector: M12, 5-pin, A-coded or M16 (option)
• Ex Protection:
  • ATEX: II 2G Ex ia IIC T4 Gb
  • IECEx: Ex ia IIC T4 Gb
  • cCSAus:
    • Class I, Div. 1, Groups A, B, C, D; T4
    • Ex ia IIC T4 Ga
    • Class I, Zone 0 AEx ia IIC T4 Ga

Download Datasheet: VTE 02 Kem Kuppers' Carrier-frequency Pulse Amplifiers

Download Datasheet: VTE 03 Kem Kuppers' Carrier-frequency Pulse Amplifiers

Download Datasheet: VTE 04 Kem Kuppers' Carrier-frequency Pulse Amplifiers

Download Datasheet: VTE Ex Kem Kuppers' Carrier-frequency Pulse Amplifiers

Download Datasheet: VTD 03 Kem Kuppers' Carrier-frequency Pulse Amplifiers

Reference : kem-kueppers.com