Flow Check with Thread

The Flow Check with Thread allows for easy installation in existing piping and high measuring accuracy.

High measurement accuracy even in lower measuring range (ideal for leakage measurement)

Negligibly small loss of pressure

Units freely selcetable via display keys

Compressed air counter up to 1.999.999.999 m³

180 ° turnable display e.g. for overhead installations

Digital interfaces such as Modbus RTU, Ethernet (PoE) and M-Bus

Connection to higher-level systems such as energy management systems, builiding management systems, SPS

Analogue output 4 - 20mA, pulse output

Read out via display or remote access via Modbus-RTU:

Exceeding maximum/minimum values °C

Calibration cycle

Error codes

Serial number

All parameters can be read out and changed via Modbus

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