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4.
SPECIFICATIONS
FLOW MEDIUM:
Please note that FMA 1400/1500 Mass Flow Meters and Controllers for
ranges up to and above 10 L/min are designed to work with clean gases only. Never try to
meter or control flow rates of liquids with any FMA 1500's or FMA 1400's.
CALIBRATIONS:
Performed at standard conditions [14.7 psia (1.01 bars) and 70
F
F
(21.1
F
C)] unless otherwise requested or stated.
ENVIRONMENTAL (per IEC 664):
Installation Level II; Pollution Degree II
4.1
FMA 1500 Mass Flow Meters
for ranges up to and above 10 L/min
ACCURACY:
+1% of full scale, including linearity for gas temperatures ranging from
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:
300ms time constant; approximately 1 second to 2% of set
flow rate for 25% to 100% of full scale flow rate.
GAS PRESSURE:
500 psig (34.5 bars) maximum; optimum pressure is 20 psig (1.4 bars).
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.
ATTITUDE SENSITIVITY:
1% shift for a 90 degree rotation from horizontal to vertical;
standard calibration is in horizontal position.
OUTPUT SIGNALS:
Linear 0-5 VDC (2000
Ω
minimum load impedance); 4-20 mA
optional (50-500
Ω
maximum loop resistance); 20 mV peak to peak max noise.
TRANSDUCER INPUT POWER:
+15 +5% VDC, 80 mA max, 1.2 watts; -15 +5% VDC, 10
mA max, 0.15 watts.
Power inputs are each protected by a 750mA M (medium time-lag) resettable fuse, and a
rectifier diode for polarity protection.
WETTED MATERIALS:
316 stainless steel, VITON
7
O-rings; BUNA-N
7
, NEOPRENE
7
or
KALREZ
7
O-rings are optional.
5
Содержание FMA 1500
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