KDS Variable Area Flowmeter

Brand: KOBOLD Instruments, Inc.

The KOBOLD KDS meter is suitable for flow measurement of liquid or gaseous products in pipes. It shows the current flow rate in volume or mass per unit in time. The devices are available with additional electrical equipment for process monitoring and control.

Function
The fluid flows from bottom to top through the meter tube of the flowmeter. The float is lifted until an annular gap between the measuring cone and the float is produced which corresponds to the flow. The forces acting on the float are in equilibrium.

The height of the float resulting from the flow rate is transmitted by the permanent magnet in the float through the magnetic tracking system in a rotation to the pointer axis of the analog indicator unit.

The variable-area flowmeter consists of a stainless steel device with an integrated conical stainless steel measuring tube and a vertically movable float. The valve for setting the flow rate is built-in (only KDS-K/C).
Features
  • Design for Horizontal and Vertical Connections Available
  • A Variety of Sealing Materials
  • Wall Mounting Possibility (KDS-C)
  • Flow Controller (Option)
  • High Pressure Application (Option)

Specifications

Accuracy

  • ± 3 % of Full Scale - Liquid/Gas

Ambient Temperature Range

  • -25° to 70° C (-13° to 158° F)

Applications

  • Chemical Industry
  • Dosing
  • Flow Measurement of Liquids & Gases
  • Laboratory Engineering
  • Medical Equipment
  • Robust Mechanical System with a Low Rate of Wear

Approvals & Certifications

  • BVS 03-ATEX-H/B 113
  • CE - Explosion Protection Directive 94/9/EC, PED 97/23/EG
  • Ex
  • IEC Ex
  • IEC-61508- 2: 2000 & IEC-61508-2: 2010
  • NJ 2-11SN PTB 00-ATEX-2049 × II 2 G Ex ia IIC T6-T4
  • NJ1,5-6,5N PTB 00-ATEX-2048 × II, 2 G Ex ia IIC T6-T4
  • SIL
  • ZELM 03-ATEX-0128 × II 1D Ex iaD 20 T to °C

Electrical Connectors

  • 2 Inductive Limit Contact
  • DIN EN 1092-1
  • M12 Plug

Electromagnetic Rating

  • EMC-Directive 2004/108/EG
  • EN 61326-1: 2006

Enclosure, Body Material

  • Stainless Steel

Environmental Protection

  • II 2D Ex Ib IIIC T 135° C Db, II 2 G Ex Ib IIC T4 Gb
  • Intrinsically Safe
  • IP65

Flow Rate

  • 0.1-200 L/hour Water
  • 5 to 6,000 NL/hr Air

Materials of Construction

  • 316 Stainless Steel - Measuring Cone, Float, Armature

Nominal Pressure

  • psi: 6,092 (kPa: 42,000, bar: 420)

NPT Connection

  • 1/4" NPT Female

Output

  • 14-30 Vdc - Analog Output
  • 2-Wire, Passive - Analog Output
  • 4-20 mA
  • 500 ohms - Analog Output
  • 5-25 Vdc
  • 8.2 V (Ri ~1 KΩ)

Output Function

  • NAMUR Output

Process Temperature

  • -40° to 130° C (-40° to 266° F)

Seat / Seal Material

  • PTFE

Show More