MEMS Mass Flow Meter

Model:MF5700
.Highly accurate thermal mass flow sensing
.Automatic temperature & pressure compensation
.High sensitivity for trace flow measurement
.Excellent turndown of 50:1 or over
.Support multiple gas measurements and customizable online calibration
.Instant flow rate and accumulated flow rate with temperature sensing
.Remost communication with RS485 Modbus
.Meter configuration and data access with front keyboard
.Customer configurable alarm for over range or limit
.Portable design with batery operation or external power
.Rotatable meter head with standard NPT or customizable connectors


The MF5700 mass flow meters come in 2 models. The MF5706 has a flow range of 0-10 SLPM or 0-25 SLPM. The MF5712 has a range of 0-200 SLPM. The MF5700 features cost effective ultra low power operating on 4 AA batteries. The portable design has excellent exchangeable mechanical adaptors, easy data accessible and user programmable capabilities. The internal data storage can also help for many industrial on-site applications. The meters can be customized for various general purpose flow applications. LCD output is included along with an optional RS485 output.

Full‐scale flow range (SLPM)

MF5706:0~20

MF5708:0~100 

MF5712:0~250 

Accuracy(%)

±(2.0+0.5FS)

Repeatability(%)

0.5

Turn‐down ratio

80:1

Response time(sec)

<2.0

Working temperature(℃)

‐10~55

Maximum pressure(MPa)

0.8

Humidity(%RH)

<95 (no condensation) 

Maximum overflow(SLPM)

MF5706:100

MF5708:200 

MF5712:400

Maximum flow change(SLPM/sec)

MF5706:15

MF5708:30

MF5712:60

Pressure loss(kPa)

MF5706:0.6

MF5708:1

MF5712:2

Power supply

4‐AA batteries (LR6) / 5~24 Vdc

Power consumption(day)

>60 (on batteries)

Power / data interface

USB Type‐C

Digital output

RS485 Modbus half‐duplex

Wireless options

LoRa / WIFI / NB‐IoT / BTLE

Display

LCD

Resolution

0.01 L/min (instant) / 1 L (accumulated)

Mechanical connection

MF5706:BSPP 1/4" 或  NPT 1/4"

MF5708:BSPP 3/8" 或  NPT 3/8"

MF5712:BSPP 1/2" 或  NPT 1/2"

Storage temperature(℃)

‐20 ~ 70

Protection

IP50

Fluid compatibility

Non‐corrosive

CE

EN61326‐1; ‐2; ‐3