Calorimetric Flow Switch FS 10|11|15|20 EXFlow Meters & Flow Switches |
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The calorimetric flow switch is designed for the monitoring of thermally conductive liquids. The big advantage of this type of flow switch is the fact that it is usable also in explosive atmosphere.
Key technical properties Flow switch FS Ex 10/11/15/20 flow switch is certified for use in the following areas with explosive atmosphere: I M1 Ex ia I Ma II 1G Ex ia IIC T4..T6 Ga II 1D Ex ia IIIC Txx°C Da The flow switch for liquids is made in four versions. These are as follows: FS 10Ex – 1× status output (depending on flow velocity) FS 11Ex – 2× status output (depending on flow velocity) FS 15Ex – 2× status output (1× depending on flow velocity and 1× on temperature) FS 20Ex – 1× status output and 1× current output (depending on flow velocity) The flow rate is indicated by ten LEDs within the measurement range and you can select the boundary for making/breaking the contact in the same graduation. The measuring cycle takes from 4 seconds to 8 seconds with recommended measurement range 4 ÷ 150 cm/sec (for default setting, the measurement range is 4 ÷ 400cm/sec). If the piping is empty, the sensor behaves identically as in the case of zero flow rate. Two standard lengths of the bar type sensor are offered according to piping ID at the installation site, selecting either a bar type sensor 65 mm or 125 mm in length as needed. If the flow rate of medium is to be monitored in a pipe smaller than DN25 (or the flow velocity is below the sensor range for the given pipe diameter), it is advantageous to use an adapter block with the corresponding flow velocity and thereby ensure proper functioning and maintain the installation conditions. The adapters are designed for the short version of 65mm sensor with the use of direct neck with G½“ pipe thread. Individual designs of adapter blocks are as follows:
Key features:
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Calorimetric Flow Switch FS 10|11|15|20 EX
Brand: Comac Cal Part Ref: CFS Category: Flow Switch |
Product Specification
Below is the product specification of the Calorimetric Flow Switch FS 10|11|15|20 EX from Comac Cal. If you require further information about this flow switch, please contact our expert customer service advisors on 01722 442 307.
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Power
24 V ± 10 % DC with polarity reversal protection (other upon request) Input Power 1.5/4 VA Electrical Connection M12 × 1, 4 pin connector Flow sensor degree of protection IP67 |
Velocity flow range
4...400 cm/sec Accuracy ±2.. ±8 cm/sec Hysteresis 2...8 cm/sec Control 2× flush-type push button |
Media Temperature
0...+80 °C Ambient Temperature -10...+55 °C Material in contact with media Stainless steel 1.4404 Maximum Pressure 63 bar |
Electrical connection
M12 × 1, 4 pin connector Process connection According to DIN2353, with the M16 × 1.5 union nut through the 24° ring into the direct socket with pipe thread (G1/2“; G1/4“; M14 × 1.5; NPT1/4“) Sensor design installed compact, separated Display 10× three-colour LED (flow velocity) 1× LED (temperature – for FS 15 only) |
