Kobold Rotating Vane-Low Volume

Measuring range:
15 – 100 ml/min … 1 – 10 l/min water
25 – 100 ml/min … 100 – 500 l/min air
Connection: G ⅛ … G ½
Material: PPS, brass, PTFE
p_max: 35 bar
t_max: 50°C
Accuracy: ±3 % of full scale
Viscosity range: low viscosity
Digital display, 0 – 5 V_DC

KOBOLD KFF/KFG flowmeters are used for measuring low and smaller, volumetric flow rates of gases (KFG) and liquids (KFF). The media must be transmissive for infrared light.

Series KFF/KFG 1000 flowmeters are available in Ryton®, brass and PTFE materials; therefore suitable for many applications in industry, in laboratories, and so forth. The new PTFE sensor of the 1000 series is delivered as standard with (0 … 5 VDC) analogue output and frequency output. The frequency output is optional on other models.

Series KFF/KFG 3000 flowmeters are available in Ryton® and in brass.

Function Principle
The flowmeter is based on the Pelton Principle, that is, the flowing medium causes a vane to rotate. The rotary motion is converted to electrical impulses by means of photodiodes. The flow rate is output as a frequency signal or a linear analogue (0…5 VDC).

Specifications

Technical Data

• Accuracy: ± 3 % f. s.
• Linearity: ± 3 % f. s.
• Repeatability:
  KFF: ± 0.2 % f. s.
  KFG: ± 1% f. s.
• Installation position: horizontal
• Temperature range: 0…50°C
• Temperature drift: 0.2%/ °C
• Max. pressure:
  KFF:
  Ryton®: 7 bar
  Brass: 35 bar
  PTFE: 4 bar
  KFG: 2.5 bar
• Supply voltage: 12.5 VDC ± 2 VDC
  PTFE version: 12.5 VDC ± 1 VDC
• Current consumption: 50 mA (typically)
• Output:
  KFF-1../KFG-1..:
  Standard: 0…5 VDC
  Option T
  (KFF-1.. only): 0…5 VDC and frequency output
  PTFE version: 0…5 VDC and frequency output
• Max. frequency: 500 Hz
• KFF-3../KFG-3..: 0…5 VDC

Material

Download Datasheet: Kobold Rotating Vane-Low Volume

Reference : kobold.com