Method 2F 3D System
Method 2F 3D System
The Apex Accu-Flow Measurement System is used for performing EPA Method 2G. The system uses a two-dimensional 3-hole prism-shaped pitot for accurately measuring flow rates for angular flow. This system provides a way for testers to improve the measurement of volumetric flow rate under cyclonic flow conditions found in some stacks and ducts. Multiple probes reduce the time for the flow Audits, therefore keeping the system as efficient as possible. Oversized sensor ports reduce plugging. The 1/4” pressure lines have quicker response and are less likely to leak than standard 1/8” lines.
3-D Flow Measurement Console
The Apex Instruments XC-3D55 3-D Flow Measurement Console is used in conjunction with various pitots to determine velocity pressure, yaw angle and pitch angle of the flow velocity vector in a stack or duct according to U.S. EPA Method 2, 2F or 2G (the determination of stack gas velocity and volumetric flow rate with three-dimensional probes).
The XC-3D55 console easily interfaces with the UINC-3D-## umbilical/inclinometer assembly through a series of 1/4-inch quick connects, a 4-pin circular connector and a type-K thermocouple jack. Readings for stack temperature, velocity pressure, pitch pressure and yaw angle are displayed respectively through a display, process meters, and a totalizer. The null angle is displayed through a Magnehelic.
Stack temperature: type-K thermocouple
Velocity pressure: (P1-P2) range ±5 inH2O
Yaw null: bidirectional (P2-P3) range ±5 inH2O 5 Bi
Pitch range: bidirectional (P4-P5) range ±5 inH2O 5 Bi
Yaw angle range: 180° (static >360°). +/-.01°
Breaker switch: magnetic-type circuit breaker rocker switch
3D flow modular system components
|XC-3D55||Digital 3-D flow measurement console, digital displays for temperature, velocity pressure, pitch pressure, yaw angle|
|3DPT2||3-D pitot, 5-hole prism-shaped tip with 2-foot sheath supplied with five 1/8-inch to 1/4-inch tube unions|
|32PTX-❑||Probe extension, 2-inch diameter sheath, split collar clamp with 1-inch inner diameter, specify length|
|PF-46XT32S||Port flange with extension, flange fits, 4- and 6-inch ports|
|32M/32B-B||2-inch bored brass bushing, 2-inch MNPT with 2.035-inch bore|
|PG-32S||2-inch packing gland, stainless steel body and nut, 2-inch MNPT, PTFE ferrule included|
|PT-CAL-W2F❑❑||2-inch packing gland, stainless steel body and nut, 2-inch MNPT, PTFE ferrule included|
|UINC-3D-❑||3-D inclinometer pod and umbilical cord, specify umbilical cord length in feet|
|U-PTX-❑❑❑❑||2-inch diameter pitot sheath extension|