Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 11)

Rev. 5/09 -1.9- TFXP
PART 1 - SPECIFICATIONS
TRANSMITTER
Power Requirements
Internal 12 V lead-acid Gel Cell battery provides 24 hrs of continuous operation @ 20 °C. Charging: Wall mount
power converter. 115 or 230 VAC 50/60 Hz ±15% VA max; 12-15 VDC @ 2.5 VA max
Velocity Range -40 to +40 FPS (-12 to +12 MPS)
Inputs/Outputs
All output modules are optically isolated from earth and system grounds.
One module and one data logger may be installed.
Standard Options
4-20 mA 800 Ohm max; 12-bit resolution, passive or active
Data Logger
200k events in 30k pages, 16-bit, integral DB-9 RS232C connection, can be removed and installed without
disconnecting system power, data transfer rates to 57.6k
Rate Pulse MOSFET, 0.21 Ohms, 100 V max, 0 to 2,500 Hz max
Dual Relay 2 separate Form C relays, 200 VAC max at 0.5 A (resistive)
RS232C Data rate to 57.6k
RS485 Supports up to 119 drops
Heat Flow (RTD) Supports two 1000 Ohm RTDs, multiplexed, 12-bit resolution
Display
128 x 64 pixel graphics LCD, LED backlit. Two user selectable font sizes 0.35" (8.9 mm) or 0.2" (5 mm)
8 digit rate, 8 digit totalizer (resettable)
Units User configured
Rate Gal, liters, million gal, ft³, m³, acre-ft, oil barrels (42 gal), liquid barrels (31.5 gal), ft, m, lb, kg, BTU, MBTU,
MMBTU, ton
Time Seconds, minutes, hours, days
Totalizer Gal, liters, million gal, ft³, m³, acre-ft, oil barrels (42 gal), liquid barrels (31.5 gal), lb, kg, BTU, MBTU, MMBTU, ton
Mode Forward, reverse, net, batch
Ambient Conditions -40 °F to +185 °F (-40 °C to +85 °C), 0 to 95% relative humidity (non-condensing)
Enclosure NEMA 4X (IP-66) while open, NEMA 6 (IP-68) while closed, ABS with SS hardware
Size 14.00" H × 6.06" W × 10.56" D (355.6 mm H × 153.9 mm W × 268.2 mm D); 14.8 lbs (6.7 Kg)
Flow Rate Accuracy DTTN / DTTH: ±1% of reading at rates > 1 FPS (0.3 MPS), ±0.01 FPS (±0.003 MPS) at rates lower than 1 FPS
DTTS/DTTC: 1" and larger units, ±1% of reading from 10-100% of measuring range, ±0.01 FPS (±0.003 MPS)
at rates lower than 10% of measuring range; 1/2" and 3/4" units, ±1% FS
Flow Sensitivity 0.001 FPS (0.0003 MPS)
Repeatability ±0.01% of reading
Response Time (Flow) 0.3 to 30 seconds, user configured, to 100% of value, step change in flow
Security Keypad lockout, user selected 4 digit access code
Approvals Ordinary areas
Software ULTRALINK™, compatible with Window ® 98/2000/XP/Vista ®
Liquid Types Most non-aerated, clean liquids
Cable Length Up to 990 ft (300 meters); standard lengths 20, 50, 100 ft (6, 15, 30 meters)
Pipe Sizes DTTN / DTTH: 2 inch and larger
DTTS / DTTC (small pipe): 1/2", 3/4", 1", 1-1/4", 1-1/2" (ANSI pipe, copper tube, tube)
Environment NEMA 6
Pipe Surface
Temperature DTTN / DTTC: -40 °F to +250 °F (-40 °C to +121 °C)
DTTS: -40 °F to +185 °F (-40 °C to +85 °C)
DTTH: -40 °F to +350 °F (-40 °C to +177 °C)
Ambient Conditions -40 °F to +185 °F (-40 °C to +85 °C)
Housing Material DTTN / DTTC: CPVC, Ultem ® , and nylon
DTTS: PVC, Ultem ® , and nylon
DTTH: PTFE, Vespel ® , and nickel-plated brass
Approvals Standard: None
Optional - DTTN only: CSA Class I, Div 1, Groups C & D; requires intrinsically safe transducer kit with barrier
TRANSDUCERS
Other Options