Aalborg DFM Digital - Manual (Page 12)

8
PRESSURE MEASUREMENT ACCURACY:
±1% of F.S.
MAXIMUM PRESSURE DROP:
8 psi (at 100 L/min flow). See Table IV for pressure drops
associated with various models and flow rates.
TEMPERATURE MEASUREMENT RANGE:
0 F C to 50 F C.
TEMPERATURE MEASUREMENT ACCURACY:
±1 F C.
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 0-10Vdc (6000 ohms min impedance);
Linear 4-20 mA (500 ohms maximum loop resistance).
Maximum noise 20mV peak to peak (for 0-5 Vdc output).
TRANSDUCER INPUT POWER:
May be configured for three different options:
Bipolar ±15Vdc (±200 mA maximum);
Unipolar +12Vdc (300 mA maximum);
Unipolar +24Vdc (250 mA maximum);
Circuit boards have built-in polarity reversal protection.
Resettable fuses provide power input protection.
WETTED MATERIALS:
316 stainless steel, 416 stainless steel, VITON
7 O-rings;
BUNA-N
7, NEOPRENE7 or KALREZ7 O-rings are optional.