深圳市德图远大仪器有限公司

产品特点

测量速度、体积和质量流量

提供准确的流量，与气体成分无关

测量瞬时平均分子量

速度范围高达 120 m/s (394 ft/s)

精确的低流量测量

4000 比 1 调节比

一条或两条路径配置

允许大型管道中的横流抗扰度

由于没有活动部件、没有孔或管并且能够耐受肮脏或潮湿的条件，因此维护量极少

无压降

经过现场验证的安装技术

易于维护

产品参数

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.