EX-LIQUI-FLOW series XL1 / XL2
Mass Flow Meters / Controllers for "Ex" Zone 1

For small to very small flows of liquids, thermal mass flowmeters and controllers of Bronkhorst High-Tech can also be applied in hazardous areas II 2 G EEx d(e) IIC T6. The flowmeter can be furnished with a control valve of Bronkhorst High-Tech with “Ex” approval for either EEx ib IIC T6 or EEx e II T4 to constitute a complete control loop and obtain a precisely controlled pulsation free, very accurate flow.

• Lowest range 0,1 ... 5 g/h H₂O-equivalent
  
• Highest range 0,02 ... 1 kg/h H₂O-equivalent

Features

• through-flow measurement
• max. temperature increase in sensor-heater approx. 1 K to 5 K; depending on range
• attitude insensitive
• all wetted parts 316 L stainless steel
• no elastomer sealing material
• stable zero point
• high accuracy
• suitable for pressure ranges from vacuum up to 400 bar

Applications

• Pharmaceutical industry
• Food industry
• Biotechnical industry
• (Petro-)chemical industry

Flow capacities (based on H₂O)

XL1      Liquid Flow Meter XL1C2  Liquid Flow Controller	min.  0,1 ... 5 g/h max. 2 ... 100 g/h
XL2      Liquid Flow Meter XL2C2  Liquid Flow Controller	min.  2 ... 100 g/h max. 20 ... 1000 g/h