communication
1. And RS 485 communication
The communication mode of the flowmeter is RS 485, and there are two protocol modes: (the factory default is B mode)
A. Factory calibration communication protocol, as a stand-alone communication protocol;
B. Modbus Agreement, for the multi-machine communication protocol.
The settings are as, respectively:
Paud 9600 (A) / 9600 (B);
Data bit 8;
Stop bit 1;
Check bit / flow control has no.
Communication protocol see: CAFS 5000 series gas mass flowmeter upper computer Modbus communication protocol
2.4-20 mA, the current signal output
4~20mA Signal output + (LOOP +, brown)
Connect of circuit resistance (this step is the user requiring 4~20mA current signal output
Relationship between external 4~20mA current output circuit voltage and maximum resistance of circuit:
RL(max) = 200Ω
4~20mA ground (LOOP-, black)
product model | latus rectum | joggle | L | H | W | d | specifications |
CMF 5019 |
19 |
3/4’’ |
130 |
66 |
45 |
19 |
200 / 300 / 500 / 600 / 800 / 1000 single Position (L / MIN) |
Functional items |
CMF5019 Latus Rectum Flow Meter 20ms Quick Response Time | ||
performance parameter | unit | remarks | |
Power Supply Voltage | 8~24VDC ,50mA | VDC | selectable |
accuracy | ±1.5 | % | FS |
response time | 65 | ms | selectable |
maximum pressure | 0.8 | MPa | customizable |
communication mode | RS 485(MODBUS ) | ||
Output method |
Analog outputs of 1-5 | VDC | |
4-20mA | apolegamy | ||
temperature | Medium temperature (-10~65), ambient temperature (-25~85) | ℃ |