Dynasonics DDFXD Doppler Ultrasonic Flow Meter - Manual (Page 53)

06-DPP-UM-00147 02/12 53
APPENDIX
SPECIFICATIONS
SYSTEM
Measuring Principle Doppler Ultrasonic.
Velocity Range 0.15 to 30 FPS (0.05 to 9 MPS); minimum calibrated span 0.15 to 5 FPS (0.05 to 2 MPS).
Accuracy ±2% full scale, over calibrated span.
Liquid Types
Liquids containing a minimum of 100 ppm of useful sonic suspended reflectors greater than 35 micron
in size, and at least 25% of the overall particle volume is larger than 100 microns. (See Product Applica-
tions page for details.)
TRANSMITTER
Enclosure
NEMA 4X (IP 66), Polycarbonate, Stainless Steel, Brass, Plated-Steel Mounting Brackets.
7.00 H × 5.75 W × 3.88 D inches (178 H × 146 W × 99 D mm).
Power Supply 115/100/230 VAC 50/60 Hz ±15% @ 17 VA max; 12-28 VDC @ 7 Watts max.
Display
2 line × 8 character LCD, LED backlight.
Top Row: 7 segment, 0.7” (18 mm) high, numeric.
Bottom Row: 14 segment, 0.35” (9 mm) high alpha-numeric.
Flow Rate Indication: 8 digit positive, 7 digit negative max.; auto decimal, lead zero blanking.
Flow Totalizer: 8 digit positive, 7 digit negative, resettable.
Engineering Units
User configured - gal, liters, million gal, ft³, m³, acre-ft, oil barrels (42 gal), liquor barrels (31.5 gal), ft, m,
lb, kg.
Rate Interval Seconds, minutes, hours, days.
Totalizer Exponents from E -2 (÷100) to E +6 (x1,000,000).
Response Time (Flow) User selectable; 6 to 60 seconds.
Input/Output
4-20 mA
800 Ohms max; internal or external power supply; 12-bit resolution; optically isolated.
Dual Relay
Independently configured; Form C, 200 VAC @ 0.5 A resistive; rate alarm, error alarm,
totalizer pulse.
Rate Pulse (Two types); Both - 2,500 Hz max; 12-bit resolution.
1) 500 mVAC - 500 mVAC into 2K Ohm minimum.
2) Open Collector - Open Collector 1 A @ 100 V maximum.
Multiple Meters
Synchronization provision included - utilized for multiple meter, single pipe/manifold sys-
tem. Up to four meters may be interconnected, up to 100 feet (30 meters) apart.
Keypad Four keys, tactile.
Ambient Conditions -40 °F to +185 °F (-40 °C to +85 °C), 0 to 95 % relative humidity (non-condensing).
Approvals
(Std.) General safety U.S. and Canada, certified to UL 61010-1 and CSA C22.2 No. 61010-1 complies with
EMC directive 2004/108/EC.