MASS VIEW Mass Flow Regulator MV 301

Descripción

The MASS-VIEW® series operate on the principle of direct thermal mass flow measurement. A major advantage of using this type of sensor is that the instruments measure direct mass flow, without the need for temperature and pressure correction.

Features of mass flow regulator

1. Clear indication in:
    - actual flow rate (bar graph and value)
    - desired flow units
    - type of gas
    - totalised flow
2. Bright, wide-angle OLED display
3. Free of parallax error
4. Virtually independent of temperature and pressure variations

5. Low pressure drop
6. Wide flow ranges
7. Fast response
8. High accuracy
9. Electronic output:
    - Analog (0 .. 5 Vdc)
    - RS-232 interface (with FLOWBUS)
    - Modbus-RTU/ASCII interface

10. Configurable password protection
11. Alarm and counter functions
12. Relays
13. Multi Gas / Multi Range
14. 4 Pre-installed gases
15. High resolution needle valve
16. Digitally calibrated
17. Free software tools

Performance

Specifications

Accuracy

± 2% RD for flow > 50% of max. capacity
± (1% RD + 0.5% FS) on lower flows

 

Repeatability

< 0.2% FS typical

Pre-installed gases

Air, N2, Oand CO

Standard calibration gas

Air, other gases are converted using our Fluidat® conversion model which will introduce extra inaccuracy

Rangeability

up to 1:20

Operating pressure

0 .. 10 bar(g) / 0 .. 150 psi(g)

Pressure coefficient

0.2% / bar typical at Air

Operating temperature

0 .. 50°C (32 .. 122°F)

Temperature coefficient

Zero: <0.1%FS/°C, Span: <0.2%RD/°C

Attidude sensitivity

< 0.1% FS

Response time (t63%)

2 s
  • Notes:                                                                                                                                                                                                       
  • 1. Mass flow units ln/min and SLM refer to normal operating conditions, i.e. 0°C (32°F) and 1013 mbar (14.7 psi)            
  • 2. Technical specifications are based on Air at maximum FS                                                                                                        
  • 3. All specifications subject to change without notice

Mechanical

Specifications

Materials (wetted parts)

Meter: Aluminium, Viton                                                             

Needle Valve: SS316, Viton, PTFE

Gas connections (in/out)

G 1/4" BSPP female

 

Electrical

Specifications

Electrical connection

8-pin RJ-45 modular jack

Output

Analog: 0 .. 5 Vdc                                                                      

Digital: RS232 / RS485 (Modbus-RTU/ASCII)

Required supply voltage

15 .. 24 Vdc (± 10%)

Power consumption

Approx. 135 mA

Min. and max. relay contracts

Switching current 0.5 A, 24 Vdc                                             

One side grounded (0 Vdc power)

 

Safety

Specifications

Test pressure

21 bar (a) / 300 psi (a)

Ingress protection

IP-50

Leak integrity (outboard)

< 1 x 10-9 mbar l/s He

EMC

CE declaration

 

Applications

The fields of application for our mass flow 
meters are diverse:
- Burner Control (furnace construction) 
- Welding (welding gas monitoring) 
- Leak measurements (quality, environment) 
- Coating (equipment construction)

- Regulation of gaseous atmospheres 
(biotechnology) 
- Measurements of gas consumption 
(hospitals) 
- Test equipment (production maintenance) 
- Local preparation of a gas mixture 
- Flow rate monitoring (laboratories)

- Cutting (steel sheets) 
- Cost centre billing 
- Analytical equipment 
- Aeration / sparging (food products, 
ice cream / edible oils 
- Blanketing (food) 
- Fermentation (food, biotechnology, pharma)

 

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