The XGS868 is a complete ultrasonic flow monitoring system for the mass measurement of saturated steam and superheated steam. The XGS868 flow meter has many advantages. It creates no pressure drop, requires very low maintenance, has no moving parts and provides reliable, drift free operation.
The XGS868 ultrasonic flow meter can be installed directly at the flow measurement point as the electronic components are housed in a compact transmitter package.
The onboard flow transmitter is able to calculate the mass flow of steam once the flow velocity has been measured and the pressure and temperatures have been input.
A dual channel model of the XGS868 flow meter is also available which provides greater accuracy when measuring across two paths on the same path. The dual channel transmitter can also be used to measure flow rates in two separate pipes in a cost effective manner.
The XGS868s transducers do not obstruct the flow inside the pipe so generally cause no pressure drop. ?
PanaView software can be used with the transmitter to communicate with a PC.
Manufactured by: GE Panametrics
Model: XGS868i Steam Flowmeter
|Operation and Performance|
|Fluid Types||Saturated or superheated steam|
|Pipe Sizes||2 in to 48 in (50 mm to 1200 mm) nominal bore (NB)|
|Pipe Materials||All metals. Consult RS Hydro for other materials|
|Flow Accuracy (velocity)||±1% to 2% of reading typical
Accuracy depends on pipe size and whether measurement is one-path or two-path. Accuracy to ±0.5% of reading may be achievable with process calibration.
|Repeatability||±0.2% to 0.5% of reading|
Specifications assume a fully developed flow profile (typically 20 diameters upstream and 10 diameters downstream of straight pipe run) and flow velocity greater than 3 ft/s (1 m/s).
|Measrement Parameters||Mass flow, standard and actual flow, totalized flow, and flow velocity.|
|Flow Measurement||Transit time|
|Enclosures||- Standard: Epoxy-coated aluminum Type 4X IP66 Class I, Division 1, Groups B,C,D Flameproof ISSeP02ATEX008 II 2 GD EEx d IIC T5 IP66 T95°C
- 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: One channel
- Optional: Two channels (for two pipes or two-path averaging)
|Display||Optional: 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||-67°F to 167°F (-55°C to 75°C)|
|Standard Inputs / Outputs||Two 0/4 to 20 mA isolated outputs, 600 W maximum load|
|Optional Inputs / Outputs||All analog and digital I/O are available in specific combinations. Consult RS Hydro for available option cards.
• Two additional 0/4 to 20 mA isolated outputs, 1,000 S maximum load
• Two 4 to 20 mA isolated inputs, 24 VDC loop power
• Two or four isolated, three-wire RTD (temperature) inputs, -148°F to 662°F (-100°C to 350°C), 100 W platinum
• Two or four pulse or frequency outputs, optically isolated, 3 A maximum, 100 VDC maximum, 1 W maximum, from DC to 10 KHz maximum
• Alarm relays:
- Two or four Form C relays;
120 VAC, 28 VDC maximum, 5 A maximum;
DC 30 W maximum, AC 60 VA maximum
|Digital Interfaces||• Standard: RS232
• Optional: RS485 (multiuser)
• Optional: HART® protocol
• Optional: Modbus® protocol
|Data Logging||• Standard: None
• Optional: Memory capacity (linear and/or circular type)
to log over 150,000 flow data points
|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|
|Preamplifier||• In-line preamplifier for long cable lengths or attenuating installations
• Operating temperature: -40°F to 140°F (-40°C to 60°C)