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Aalborg XFM Series User Manual

Aalborg XFM Series
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7
4. SPECIFICATIONS
FLOW MEDIUM: Please note that XFM Mass Flow Meters are designed to work only with
clean gases. Never try to measure flow rates of liquids with any XFM.
CALIBRATIONS: Performed at standard conditions [14.7 psia (101.4 kPa) and 70
F
F
(21.1
F
C)] unless otherwise requested or stated.
ENVIRONMENTAL (PER IEC 664): Installation Level II; Pollution Degree II.
FLOW ACCURACY (INCLUDING LINEARITY): ±1% of FS at calibration temperature and
pressure.
REPEATABILITY: ±0.15% of full scale.
FLOW TEMPERATURE COEFFICIENT: 0.15% of full scale/
F
C or better.
FLOW PRESSURE COEFFICIENT: 0.01% of full scale/psi (6.895 kPa) or better.
FLOW RESPONSE TIME: 1000ms time constant; approximately 2 seconds to
within ±2% of set flow rate for 25% to 100% of full scale flow.
MAXIMUM GAS PRESSURE: 500 psig (3447 kPa gauge).
MAXIMUM PRESSURE DROP: 0.18 PSID (at 10 L/min flow). 8 psi (at 100 L/min flow).
See Table IV for pressure drops associated with various models and flow rates.
GAS AND AMBIENT TEMPERATURE: 32
F
F to 122
F
F (0
F
C to 50
F
C). 14
F
F to 122
F
F
(-10
F
C to 50
F
C) - Dry gases only.
RELATIVE GAS HUMIDITY: Up to 70%.
LEAK INTEGRITY: 1 x 10
-9
sccs He maximum to the outside environment.
ATTITUDE SENSITIVITY: Incremental deviation of up to 1% from stated accuracy, after re-
zeroing.
OUTPUT SIGNALS: Linear 0-5 Vdc (3000 ohms min load impedance);
Linear 4-20 mA (500 ohms maximum loop resistance).
Maximum noise 20mV peak to peak (for 0-5 Vdc output).
TRANSDUCER INPUT POWER: 11 to 26 Vdc, 100 mV maximum peak to peak output
noise.
Power consumption: +12Vdc (200 mA maximum);
+24Vdc (100 mA maximum);
Circuit board have built-in polarity reversal protection, 300mA resettable fuse provide
power input protection.
WETTED MATERIALS: Anodized aluminum, brass, 316 stainless steel, 416 stainless steel,
VITON7 O-rings; BUNA-N7, NEOPRENE7 or KALREZ7 O-rings are optional.

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Aalborg XFM Series Specifications

General IconGeneral
BrandAalborg
ModelXFM Series
CategoryMeasuring Instruments
LanguageEnglish

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