XGF868i

# Product Introduction
The DigitalFlow XGF868i ultrasonic flowmeter adopts patented Correlation Transit Time™ technology, digital signal processing, and precise molecular weight calculation methods. Combining the inherent advantages of ultrasonic flow measurement — maintenance-free operation, high accuracy, fast response and wide-range measurement — the DigitalFlow XGF868i flowmeter is undoubtedly the ideal choice for flare gas applications.


## Compact Enclosure
All electronic components of the DigitalFlow XGF868i are housed in a compact, cost-effective, explosion-proof/fire-proof transmitter enclosure that can be installed close to the flow measurement point. This greatly simplifies the wiring of the flowmeter.


# Product Parameters
## Product Specifications
### Operation and Performance
#### Fluid Type
Flare and exhaust gases


#### Pipe Material
All metals, fiberglass. For other materials, please consult Panametrics.


#### Flow Accuracy (Velocity)
Dependent on pipe diameter and gas type


#### Display
2-line × 16-character backlit LCD display, configurable to show up to four measurements in sequence


#### Keypad
Built-in magnetic six-key keypad for full functional operation


#### Power Supply
- Standard: 100-240 VAC ±10%
- Optional: 12 to 28 VDC, ±5%


#### 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 Input/Output
Two isolated 0/4 to 20 mA outputs with maximum load of 600 Ω; two isolated 4 to 20 mA inputs with 24 VDC loop power supply, or one isolated 4 to 20 mA input with 24 VDC loop power supply and one direct 3-wire RTD (temperature) input ranging from -148°F to 662°F (-100°C to 350°C) with 100 Ω platinum option.
- Two optically isolated frequency outputs, maximum 3 A, maximum 100 VDC, maximum 1 W, DC to 10 KHz


#### Digital Interface
- Standard: RS232 (PanaView PC software), HART® 7 protocol, 4-20 mA output
- Optional: Modbus® RS485 or TCP/IP
- Optional: Ethernet
- Optional: OPC Server
- Optional: Foundation Fieldbus®
- Optional: Compliant with Namur NE107 standard


# Product Applications
## Application Scenarios
The DigitalFlow XGF868i flowmeter is a complete ultrasonic flow measurement system designed for:
- Flare gas
- Tracking or preventing losses caused by leakage through positive material identification
- Measuring the Net Heating Value (NHV) of ventilation gases in BTU/SCF, MJ/m³ or KJ/m³
- Accounting for total throughput in process plants
- Reducing steam usage costs via proportional combustion control
- Saving energy by eliminating unnecessary combustion
- Complying with governmental pollution control regulations
- Exhaust gas
- Hydrocarbon gases
- Biogas
- Digester gas