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The Flow Check with Thread allows for easy installation in existing piping through integrated measuring section (1/4˝ to 2“) and high measuring accuracy due to defined measuring section (inlet and outlet section). Display shows 2 values at the same time:
Values indicated in the display turnable by 180°C, e.g. in case of overhead installation. It follows a calorimetric measuring principle, making additional pressure and temperature measurements unnecessary.
Technical data flow check |
|
Parameters |
m³/h, l/min (1000 mbar, 20 ° C) at compressed air or Nm³/h, Nl/min (1013 mbar, 0 °C) for gases |
Units adjustable via keys at display |
m³/h, m³/min, l/min, l/s, ft/ min, cfm, m/s, kg/h, kg/min, g/s, lb/min, lb/h |
Sensor |
Thermal mass flow sensor |
Measuring medium |
Air, gases |
Gas types are adjustable over PMH service software or PMH data logger |
Air, nitrogen, argon, helium, CO2, oxygen, vacuum |
Measure range |
See table above |
Accuracy (m.v.: of meas. value) (f.s.: of full scale) |
± 1.5 % of m.v. ± 0.3 % of f.s. on request ± 1.0 % of m.v. ± 0.3 % of f.s. |
Operating temperature |
-30-80 °C |
Operating pressure |
-1 to 16 bar optional to PN 40 |
Digital output |
RS 485 interface (Modbus-RTU), optional: Ethernet-Interface PoE), M-Bus |
Analog output |
4-20 mA for m³/h e. g. l/min |
Pulse output |
1 Pulse per m³ or per liter galvanically isolated. Pulse value can be set on the display. Alternatively, the pulse output can be used as an alarm relay |
Supply |
18-36 VDC, 5 W |
Burden |
< 500 Ω |
Housing |
Polycarbonate (IP 65) |
Measuring section |
Stainless steel, 1.4301 or 1.4571 |
Process connection |
R 1/4“ to R 2“ (BSP British Standard Piping) or 1/2“ to 2“ NPT-thread |
Mounting position |
Any |