Tubine flowmeter Technical parameter and connection terminals of Type LWF-(Ⅰ) (current output)

Tubine flowmeter Technical parameter and connection terminals of Type LWF-(Ⅰ) (current output)

preamplifier

（1）Type LWF-(Ⅰ)-1 preamplifier output 4~20mA current analog signals, three-wire system. 

Before leaving the factory, each amplifier has been calibrated together with associated turbine 

flow meter. In order to ensure the accuracy, mixed use is not allowed.

0 Operating power supply：VDD=+11~26VDC

0 Output signal: current output I=4~20mA

Intrinsic error :±0.5% full scale value

Load resistance：0~RΩ（R=50(VDC-11)+250)

Operating condition: ambient temperature：-25～+55℃；

Relative humidity≯85%RH

Installation: Installed on the body of flow meter

through M16X1 thread and slightly locked with locknuts.

Figure  8-2 Wiring  Connetions

Diagram of Type LWF-I-1

Amplimer

Wiring connections: as per Figure 8-2 Wiring connections Diagram of Type LWF-I-1 Pre-amplifier 

Figure 8-2 Connection Diagram of Type LWF-I-1 Amplifier

 Note: The thick black line is used to shield outside interference and must be earthed!

（2）Type LWF-Ⅰ-2 pre-amplifier may simultaneously output current and pulse signals and can drive 

the PLC controller, and besides, it has explosion proof function and anti-spray function.

0 Operating power supply：VDD=+11~26VDC

   ● Output signal: current output I=4~20mA Pulse output: Wave form: square wave Low electrical level: ≤1V

High level：power supply voltage-3V

●Ambient temperature：-25～55℃

●Relative humidity≯85%RH

●Installation: Installed on the body of flow meter through M16X1 thread and slightly locked

with locknuts.

0 Enclosure classification:IP65

0 Explosion-proof classification: EXdⅡBT4

Figure 8-2 Wiring Connections

Diagram  of  Type  LWF- Ⅰ -2

Amplifier