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Measurement / control system

Flow range, based on N2
(intermediate ranges available)

min. 0,4…20 m3n/h
max. 4…200 m3n/h 

Accuracy (incl. linearity)
(based on actual calibration)

±1% FS

Turndown

1:50

Multi fluid capability

storage of max. 8 calibration curves

Repeatability

< 0,2% Rd

Response time

typical: 0,5 seconds

Operating temperature

-10…+70°C;
for ATEX cat. 3 and FM Class 1 Div 2 : 0…50°C

Temperature sensitivity

zero: < 0,05% FS/°C; span: < 0,05% Rd/°C

Pressure sensitivity

0,1% Rd/bar typical N2; 0,01% Rd/bar typical H2

Leak integrity, outboard

tested < 2 x 10-9 mbar l/s He

Attitude sensitivity

max. error at 90° off horizontal 0,2% FS at 1 bar, typical N2

Warm-up time

30 min. for optimum accuracy
2 min for accuracy ± 2% FS

 

Mechanical parts

Material (wetted parts)

stainless steel 316L or comparable

Pressure rating

up to 40 bar abs (PN10, 16, 40);
for hazardous gases such as O2, H2, etc. do not exceed operating pressure of 10 bar; for higher pressure select a flanged type MFM, series F-107/F-117.

Process connections

Wafer type, for mounting between flanges according to DIN DN40 or ANSI 1½”

Seals

standard: Viton®; options: EPDM, Kalrez® (FFKM)

Weight

4,0 kg

Ingress protection (housing)

IP65