Target flowmeter with digital display has the following main types and forms:

1) Types:

· Liquid flowmeter: normal temperature and high temperature

· Gas flowmeter: normal temperature and high temperature

· Steam flowmeter: saturated steam and superheated steam.

2) Forms and corresponding sizes

· Pipeline type: Threaded pipeline type: size of DN15~DN80 (mm)

Flanged pipeline type: size of DN15~DN300 (mm)

· Clamped mounting type: size of DN15~DN600 (mm)

· Inserted type: size of DN100~DN2000 (mm)

Inserted type includes fixed type and telescopic online removable type.

Example of selection of accuracy and measurement range:

Applicable measurement range of DN25 flow meter is 0.2m³/h~9m³/h. This range spans 45 times. Apparently, it is very difficult to ensure certain accuracy in such a large span. For a given accuracy, corresponding range degree shall be selected from the applicable measurement range. For example, when required accuracy is ±0.2%, measurement range degree shall be selected from applicable flow range 0.2 m³/h~9m³/h according to Qmax=3 Qmin, i.e. the range degree can be 0.2 m³/h~0.6m³/h, 0.5 m³/h~1.5 m³/h and 3m³/h~9m³/h etc. Similarly, if required accuracy is ±0.5% or ±1.0%, corresponding flow range degrees can be selected. It shall be pointed out that when Reynolds number of measured media is within 1500, under certain accuracy condition, range degree will be narrower. Amplitude of narrowing depends on flow velocity and viscosity of measured media 

Power supply mode

l      Online LCD display without output: built-in 3.6VDC Li battery

l      Separate digitron display: external 220VAC or 24VDC power supply

l      Online LCD with output: external 24VDC power supply

5) Output connection lines

l      Flowmeter signal output line connection thread size is M20*15

l      4~20mA current output is of 2-wire system

l      0~10V voltage output is of 3-wire system

l      Pulse output is of 3-wire system

For output line connection method and mode, refer to “Instruction manual” provided along with the product.

Signal output wire protection sheath and connection thread can be configured according to actual user requirement.