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Kobold KFG-1000 ranges from 25 to 2000 ml/min, and KFG-1008 to KFG-1014 ranges from 1 to 500L ml/min.
KOBOLD KFF/KFG Series turbine flow sensors and flowmeters can measure very low flow rates. They are suitable for a wide variety of industrial, commercial and laboratory flow applications involving media transparent to the near-infrared spectrum. The low volume flow sensor uses a pelton-type turbine wheel and photodiodes to generate an electrical signal linearly proportional to flow rate. This output signal (accessible via the included cable) can be either a pulse or 0–5 VDC analog output usable with a variety of data acquisition equipment. KFF/KFG Series low volume turbine flow sensors and flowmeters are available in Ryton®, brass or PTFE (Teflon®) construction for use in a wide variety of process situations. Our PTFE flow sensors and flowmeters come standard with both analog (0-5 VDC) and frequency outputs. The frequency output on other models is optional. If price is a key issue, the standard PTFE/Kalrez® fittings on KFF/KFG-1500 Series pelton wheel flow sensors can be replaced with PVDF (a.k.a. Kynar®)/Viton® for a slight cost reduction. Contact your factory representative for details.
Accuracy: ± 3% of full scale
Linearity: ± 3% of full scale
Repeatability
Liquid: ± 0.2% of full scale
Gas: ± 1% of full scale
Temperature Ratings
Range: 32°F to 120 °F
Drift: ±0.1%/°F
Maximum Pressure Ratings
Liquids (KFF)
Ryton®: 100 PSIG
Brass: 500 PSIG
PTFE: 60 PSIG
Gases (KFG)
All Materials: 40 PSIG
Fittings: Compression
Installation: Horizontal
Wetted Parts
Ryton Units
Housing: 60%Ryton/40%glass
Turbine: 60%Ryton/40%glass
Bearing: Sapphire
Support: 316 Stainless Steel
Gaskets: Viton®
Fittings: Acetal
Brass Units
Housing: Brass & glass
Turbine: 60%Ryton/40%glass
Bearing: Sapphire
Support: 316 Stainless Steel
Gaskets: Viton®
Fittings: brass
PTFE Units
Housing: PTFE
Turbine: PTFE
Bearing: Sapphire
Support: PTFE
Gaskets: Kalrez®
Fittings: PFA
Output Signal: 0–5 VDC
Option T: 0–5 VDC & pulse
PTFE Units: 0–5 VDC & pulse
Max. Frequency: 500 Hz
Power Requirements
Voltage
Standard Units: 12.5 VDC ± 2 VDC
PTFE Units: 12.5 VDC ± 1 VDC
Option B1: 4.5 VDC ± 1.5 VDC
Current: 50 mA (typical)