Mechnical flow meter
1 Description
The flowmeter operates on the float measuring principle. The measuring section consists of a metal cone in which a float can move freely up and down. The medium flows through the flowmeter from bottom to top.
The variable area flowmeters are suitable for measuring gases, vapors and liquids with specialty of solid, steady and reliable. CMDKW series are instructions type, and LZDW series are with electronic display and electronic signal output(4～20mA, compatible HART Protocol). The flowmeters are available as inlet or outlet pressure regulator. It also select install 1 or 2 limit switches.
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CMDKW—F12—type (horizontal conntection) | CMDKW—F10 type （vertical conntection） | CMDKW—F12/K1 type （horizontal conntection with limit switches） | LZDW—F12 type （horizontal conntection） |
2 Description Code
The description code consists of the following elements*:
CMDK(D)W — □ / □ / □
① ② ③
① F10 without valve and vertical connection
F12 with valve and horizontal connection
② RR1 Material 304
RL Material 316L
③ K1 One upper limit switch
K2 One lower limit switch
K12 Two limit switches
* Positions which are not needed are omitted (no blank positions).
3 Technical data
3.1 Measuring ranges:Water（20℃）0.3～100 L/h
Air（20℃ 101325Pa）5～3400 L/h
3.2 Measuring span: 10∶1
3.3 Accuracy: CMDKW Series: 4.0; LZDW Series: 2.5
3.4 Maximum Pressure: 2.5 or 6.4MPa
3.5 Medium Temperature: —80～＋150 ℃
3.6 Ambient Temperature: —25～＋65 ℃
3.7 Connection Type: 1/4″NPTF
3.8 Limit Switch: 1 or 2
3.9 Electronic signal type:
Power supply: 24(1±10%)V DC
Output signal: 4～20mA DC, compatible HART Protocol
3.10 Protection category: IP65