CS thermal mass flowmeter VA 450

2011年 2月 28日(月曜日) 06:39
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CS thermal mass flowmeter VA 450

The CS flow sensor VA 450 is based on the thermal mass flow principle. It measure volumetric standard flow over a wide measuring range. The result is pressure and temperature independent.

VA 450 is designed specifically for harsh environments. The NEMA 4X enclosure with IP67 allows all-weather applications, All parts which come into contact with the measurement medium are made of stainless steel 316L. This allows applications in pharmaceutical and food industry, but also the measurement of corrosive and contaminated gas. Installations in explosive environment can be done through the optional ATEX approval. Various gases can be measured such as air, oxygen, argon, carbondioxyde, natural gas, hydrogen, methane, etc. Basically any gas mixture can be measured as long the mixing ratio and its components are known and constant.

The modern factory world instrumentation requires interfaces to factory automation system.

CS flowmeters not only supporting the traditional 4-20 mA outputs and pulse outputs, but also fieldbus interface for HART, Modbus and M-Bus. Since the meters are based on a modular design other fieldbus can be adopted easily. The optional Display showing flow rates, consumption, medium temperature and diagnostic results.
 

Features:

  • Direct measurement of mass flow and standard flow without the need of pressure compensation
  • Wide range of tube sizes are supported with insertion type for big pipe diameters and in line types for small pipe diameters
  • No moving parts, non clogging
  • All parts which come into contact with the measurement medium are made of stainless steel 316L
  • Robust metal enclosure suitable for out-door applications in harsh environment
  • Wireless Bluetooth interface for sensor settingson ambient site
  • Display showing flow rates, consumption, meduim temperature and diagnostic results
  • 2 analogue outputs (4-20 mA) and 1 pulse output
  • Available options:
  • Fieldbus interface: HART, MODBUS, M-BUS
  • Hazardous approval ATEX: II 2 G Ex d IIC T4
  • 2-directional measurement
  • Flow conditioning
 

Technical Data:

Technical data VA 450 / VA 452
Measuring range0.4...92.7 sm/s *(standard range calibration)
0.8 ... 185 sm/s *(max range calibration)
(refer to table for flow measurement ranges in different tube diameters)
*sm/s: standard meter per second
Accuracy±(1.5% of reading + 0.3% full scale)
Stated accuracy atAmbient/process temperature 23 °C 3°C
Ambient/process humidity < 90 %, no condensation Process pressure at 0.6 MPa
Repeatability0.25% of reading
Response time t95<5 seconds
Sampling rateDisplay and outputs are refreshed every 200 msec
Tube diameterInsertion type: DN25 ... DN1500
In line type: DN15 ... DN80
Process connectionInsertion type: ½" G type thread(ISO 228-1)
In line type: R thread(ISO 7-1), Flange EN 1092-1,
                   ANSI 16.5, JIS B2220
Measuring mediumAny gas where the components and the mixing ration
are constant and known.See order information for a list of standard gases
Operating temperature-40 ... +150 °C (medium temp. insertion type)
-40 ... +100 °C (medium temp. in line type)
-40 ... +65 °C (ambient temperature)
Operating pressure1.6 MPa (insertion type)
4.0 MPa (in line type)
Analogue output2 x 4 ... 20 mA, up to 500 R load, active/passive selectable, measurement channel selectable, scaling programmable
Pulse/Alarm outputEither alarm or pulse output. 1 pulse per 1,10 or 100 consumption units, Alarm programmable
Power supply16-30 VDC, 7 W
EnclosureNEMA 4X, IP 67
Sensor materialStainless steel 316L
ApprovalsCE, RoHS
ATEX : II 2 G Ex d IIC T4(Optional)
Fieldbus (Optional)MODBUS
HART
M-BUS
Configuration interfaceCS-Service kit
Bluetooth

Volumetric flow ranges
Inch DN Di[mm] S-Rang [m³/h] M-Range [m³/h]
1/2" DN15 16.10.2~45.60.4~91.0
3/4" DN20 21.70.4~89.10.9~177.8
1" DN25 27.30.7~147.71.5~294.7
1¼" DN32 35.91.3~264.82.6~528.4
1½" DN40 41.81.8~364.93.6~728.2
2" DN50 53.13.0~600.16.0~1198.6
2½" DN65 68.85.0~102410~2043
3" DN80 80.87.0~142114~2836
4" DN100 100.310~219621~4383
5" DN125 133.720~391238~7807
6" DN150 162.329~577258~11519
8" DN200 200.043~878688~17533
10" DN250 250.069~13744137~27429
12" DN300 300.099~19815198~39544
 

Application:

CS Instruments provides practical, state-of-the-art, high-quality thermal mass flowmeters for gas flow applications such as
  1. Compressed air flow and distribution
  2. Airflow and distribution of process gases like Carbon dioxide, Argon, Nitrogen, Oxygen
  3. Explosive gases like Natural gas, Hydrogen, bio gas
  4. Corrosive gases like bio gas
  5. Fuel and air supply to burners, boilers, industrial furnaces
  6. Air flow in chillers
  7. Dosing and gas injection control
 

Order. No:

Order No.Description
0695 0450VA 450, flow sensor, insertion type
0695 0452
VA 452, flow sensor, in line type

Download Order form VA 450
 
Last modified on 2012年 3月 05日(月曜日) 04:54
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Testimonials

By monitoring our compressed air system with CS Products and implementing improvements we achieved a costs saving of 20%.

- Li Gou Fu, Facility Manager, Fuji Electric