深圳市德圖遠大儀器有限公司

産品特點

測量速度、體積和質量流量

提供準确的流量，與氣體成分無關

測量瞬時平均分子量

速度範圍高達 120 m/s (394 ft/s)

精确的低流量測量

4000 比 1 調節比

一條或兩條路徑配置

允許大型管道中的橫流抗擾度

由于沒有活動部件、沒有孔或管并且能夠耐受肮髒或潮濕的條件，因此維護量極少

無壓降

經過現場驗證的安裝技術

易于維護

産品參數

Operation and Performance
Fluid Types	Flare and vent gases
Pipe Materials	All metals, fiberglass. Consult GE for other materials.
Electronics
Flow Measurement	Patented Correlation Transit-Time mode
Enclosures	• Standard: Epoxy-coated aluminum Hazardous Area Rating: Explosion-proof: Class 1, Division 1, Groups B, C and D Flameproof: ISSeP 07ATEX015 II 2 G Ex d IIC T5 IP66 IECEX: FM G 0011xII 2 G Ex d IIC T6 Gb IP66 • Optional: Stainless steel
Dimensions (h x d)	Standard: Size 8.2 in x 6.6 in (208 mm x 168 mm), weight 10 lb (4.5 kg)
Channels	Standard: Two channels (for two-path averaging)
Display	2 line x 16 character backlit LCD display, configurable to display up to four measurement parameters in sequence
Keypad	Built-in infrared, six-button keypad for full functionality operation
Power Supplies	• Standard: 100-240 VAC • Optional: 12 to 28 VDC, ±5%
Power Consumption	20 W maximum
Operating Temperature	–40°F to 140°F (–40°C to 60°C)
Storage Temperature	–67F° to 167°F (–55°C to 75°C)
Standard Inputs/Outputs	Two 0/4 to 20 mA isolated outputs, 600 Ω maximum load Two 4 to 20 mA isolated inputs, 24 VDC loop power, or One 4 to 20 mA isolated inputs, 24 VDC loop power, one direct three-wire RTD (temperature) input, –148°F to 662°F (–100°C to 350°C), 100 Ω platinum
Optional Inputs/Outputs	Two frequency outputs, opticallyisolated, 3 A maximum, 100 VDC maximum, 1 W maximum, from DC to 10 KHz maximum
Digital Interfaces	Standard: RS232 (PanaView PC software) HART® protocol on 4-20 mA output • Optional: Modbus® RS485 or TCP/IP • Optional: Ethernet • Optional: OPC server • Optional: Foundation Fieldbus®
European Compliance	System complies with EMC Directive 2004/108/EC, 2006/95/EC LVD (Installation Category II, Pollution Degree 2) and transducers comply with PED 97/23/EC for DN<25
Wetted Ultrasonic Flow Transducers
Temperature Range	Overall: -364°F to 536°F (-220°C to 280°C) Transducer type selection is based on specific application review.
Pressure Range	Standard: -2 psig to 1500 psig (87.6 to 10300 kPa)
Materials	• Standard: Titanium • Optional: Monel® or Hastelloy® alloys
Process Connections	Flanged and compression fittings
Area Classifications	• Standard: Explosion-proof Class I, Division 1, Groups C,&D. Flameproof II 2 G Ex d IIC T4, T3 or T2 Gb. IECEx Ex d IIC T4,T3 or T2 Gb. • Optional: Div. 1, Class 1, Group B
Insertion Mechanism
Standard Range	3 in (76 mm) flange mounted packing gland and valve at equal mounting angle both up and downstream
Extended Velocity Range	3 in (76 mm) flange mounted packing gland and valve with Recovery Angle in downstream assembly
Preamplifier	In-line powered preamplifier with transformer and BNC connections. One preamp/transformer per transducer per channel.
Gain	• Standard: 20 • Optional: 2, 10, 40 (factory selected)
Temperature Range	-40°C to +60°C (-40°F to +140°F)
Enclosure	• Explosionproof Div. 1, Class I, Group C, D Optional: Group B upon request • ATEX Flameproof II 2 G Ex d IIC T4, T3 or T2 Gb • IECEx Flameproof Ex d IIC T4, T3 or T2
Transducer Cables	• Standard: (per pair of transducers) • One pair of coaxial cables, type RG62A/U, transducer to preamplifier, 3 m (10 ft) length, if required. • One pair of coaxial cables, type RG62 A/U, preamplifier to XGF868i electronics, lengths 3 m (10 ft) to 330 m (1000 ft) maximum • Optional: flame retardant, armored cable; cable glands
Pressure and Temperature Transducers	Available upon request.
Additional Options
PanaView™ PC-Interface Software	The DigitalFlow XGF868i communicates with a PC through a serial interface and Windows® operating systems. Features include site files, logs and other operations with a PC.
Installation Flowcells	Flanged/Plain-End Spool Piece, Hot Tap or Cold Tap Transducers and flowcells for specific applications are available. Consult GE for details.