High Precision Gas or Steam Mass Flow Meter (JH-CMFM-R)

                                                                       Coriolis Mass Flow Meters
     
The meters are designed for unsurpassed performance in even the harshest operating environments. They have no moving parts, and any special mounting or flow conditioning requirements. Every meter is available with stainless steel wetted parts and a wide variety of process connections to meet your every need.

Principles of Measurement:
Coriolis Mass Flow Meters was consisted of a pair of bended tubes. The principle is to detect Coriolis force forced a pair of tubes from inner mass flow by fluid.
A new force-Coriolis force would be appear while two conditions met: (1) vibrating with normal frequency in a pair of bended tubes, (2) fluid flowing in tubes. This force was produced upon synthesis from vibrating force and flowing force by fluid in tubes. And tubes would be wresting symmetric the center line because the force forced. Two displacement sensors on sides of tubes detect the force and output electric signals. The signals regulated, mass flow directly produced.

Features:
-Using the world's most advanced second generation transmitter technology - DSP technology, higher precision, wider range, more simple structure, more stable operation.

-Measurement of high pressure gas (such as CNG compressed natural gas (LNG), low temperature liquids such as liquefied natural gas, liquid nitrogen).

-Using high-precision processing technology, ensure the sensor quality, zero stability.

-Using digital signal processing (DSP) technology, metering system host through the 485
communication, the relevant parameters, to obtain the required such as: mass flow, volume flow rate,temperature, density, the state information.

-Through the debugging software or manual debugging device can read the fault code, solving the problem of inconvenient meter using the staff more comprehensive, troubleshooting
-Support the standard industrial control communication protocol ModbusRTU, easy configuration and use.

-According to user needs, mass flowmeter in design and manufacture of special specifications and has special function, tailored to the user.

Technical parameters:

Mass flow accuracy	±[0.2% +(zero stability /flow rate×100%)
Mass flow repeatability	±(1/2) ×[0.2% +(zero stability /flow rate×100%)
Density range	0.2 g/cm3~3.5g/cm3
Density accuracy	±0.002g/cm3
Temperature range	-60C-+200C
Temperature accuracy	±1C
Output of current loop	4mA~20mA
Output of frequency/pulse	0Hz~10kHz
Contactor capacity of a Batch Control relay	24V/0.1A
Explosion-proof	Essential safety:Exib[ib]IIBT4 Composite:Exdib[ib]IIBT4
Contactor form	normal open
Environmental Specifications
Temperature range of fluid	-40C-+200C
Environmental temperature range	0C-+40C
Environmental humidity	≤90% RH, non condensation
Atmospheric pressure range	86kPa~106kPa
Power supply of transmitters	Essential safety Voltage: AC(220±10%)V,(50±5%)Hz Composite Voltage: DC (24±10%) V

 
  

Specs	Line Sizes (mm)	Flow Range (t/h)	Calibration Range (t/h)	Max. Tube Pressure (MPa)	Zero Stability (t/hr)	Velocity  Parameter (h m/t s)
DN1	1	0~0.04	0.004~0.04	30.0	0.000008	353.7
DN3	3	0~0.35	0.035~0.35	30.0	0.000067	39.3
DN6	6	0~0.7	0.07~0.7	30.0	0.00016	19.65
DN10	10	0~1.2	0.12~1.2	30.0	0.0002	4.912
DN15	15	0~6.4	0.64~6.4	4.0	0.0011	2.183
DN25	25	0~16	1.6~16	4.0	0.002	0.902
DN40	40	0~40	4~40	4.0	0.003	0.334
DN50	50	0~65	6.5~65	4.0	0.006	0.197
DN80	80	0~160	16~160	2.5	0.01	0.0873
DN100	100	0~250	25~250	2.5	0.015	0.0544
DN150	150	0~550	55~550	2.5	0.03	0.0239