Omega fma 1400 User Manual
Omega
7 makes no expressed or implied guarantees of corrosion resistance of mass flow
meters as pertains to different flow media reacting with components of meters. It is the
customers' sole responsibility to select the model suitable for a particular gas based on
the fluid contacting (wetted) materials offered in the different models.
customers' sole responsibility to select the model suitable for a particular gas based on
the fluid contacting (wetted) materials offered in the different models.
INLET AND OUTLET CONNECTIONS: 1/4"compression fittings standard on ranges up to
50 L/min; 3/8” compression fittings standard on 60, 80, and 100 L/min ranges.
50 L/min; 3/8” compression fittings standard on 60, 80, and 100 L/min ranges.
Optional: 1/8” compression fittings and 1/4” VCR fittings on ranges up to 10 L/min.
3/8” compression fittings and 1/4” VCR fittings on ranges above 10 L/min up
to 50 L/min.
to 50 L/min.
TRANSDUCER INTERFACE CABLE: Flat cable with male 15-pin "D" connector is standard.
Optional shielded cable is available with male/female 15-pin "D" connector ends. [Cable
length may not exceed 9.5 feet (3 meters)].
Optional shielded cable is available with male/female 15-pin "D" connector ends. [Cable
length may not exceed 9.5 feet (3 meters)].
4.2
FMA 1400 Mass Flow Controllers
for ranges up to and above 10 L/min
for ranges up to and above 10 L/min
ACCURACY: +1% of full scale, including linearity for gas temperatures ranging from
59
59
F
F to 77
F
F (15
F
C to 25
F
C) and pressures of 10 to 60 psia (0.7 to 4.1 bars).
REPEATABILITY: +0.2% of full scale.
TEMPERATURE COEFFICIENT: 0.1% of full scale/
F
C.
PRESSURE COEFFICIENT: 0.01% of full scale/psi (0.07 bar).
RESPONSE TIME: FMA 1400 for ranges up to 10 L/min:
300ms time constant; approximately 1 second to within
+2% of set flow rate for 25% to 100% of full scale flow.
+2% of set flow rate for 25% to 100% of full scale flow.
FMA 1400 for ranges above 10 L/min:
600ms time constant; approximately 2 seconds to within
+2% of set flow rate for 25% to 100% of full scale flow.
600ms time constant; approximately 2 seconds to within
+2% of set flow rate for 25% to 100% of full scale flow.
GAS PRESSURE: 500 psig (34.5 bars) maximum; optimum pressure is 20 psig (1.4
bars); 25 psig (1.7 bars gauge) for FMA 1400 ranges above 10 L/min.
bars); 25 psig (1.7 bars gauge) for FMA 1400 ranges above 10 L/min.
MAXIMUM DIFFERENTIAL PRESSURES: 40 psig (2.61 bars) for FMA 1400 ranges above
10 L/min. 50 psig (3.34 bars) for FMA 1400 ranges up to and above 10 L/min. Optimum
differential pressure is 25 psid (1.7 bars). See Table IV for pressure drops associated with
various models and flow rates.
10 L/min. 50 psig (3.34 bars) for FMA 1400 ranges up to and above 10 L/min. Optimum
differential pressure is 25 psid (1.7 bars). See Table IV for pressure drops associated with
various models and flow rates.
GAS AND AMBIENT TEMPERATURE: 41
F
F to 122
F
F (5
F
C to 50
F
C).
RELATIVE GAS HUMIDITY: up to 70%.
LEAK INTEGRITY: 1 x 10
-9
sccs He maximum to the outside environment.
6