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TA2-A000-031 Datasheet(PDF) 8 Page - Magnetrol International, Inc. |
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TA2-A000-031 Datasheet(HTML) 8 Page - Magnetrol International, Inc. |
8 / 72 page 8 54-631 Thermatel Model TA2 Transmitter Pressure ratings of the compression fitting: Stainless steel ferrules: 1500 psig at +70° F (103 bar at +20° C) 1375 psig at +400° F (95 bar at +200° C) Teflon® ferrules: 100 psig (7 bar) Figure 5 Probe Installation into a Tee Fitting is Not Recommended Various methods of mounting the probe include compres- sion fittings, threads, and flanged connections. Refer to probe model numbers. The insertion probe can be installed through a compression fitting. The use of a bored-through fitting with 3⁄4" or 1" NPT connection for 3 ⁄4" outside diameter tube is recommended. The use of Teflon® ferrules should be considered if repeat- ed reposition of the sensor is considered. The stainless steel ferule can only be tightened once as it makes a permanent indentation on the probe. If using a compression fitting with stainless steel ferrules, ensure that the probe is in the desired location before tightening. NOTE: The TA2 flow measurement is based on a fully developed tur- bulent flow profile in a pipe with the specified inner diameter. Accuracy will be affected if these conditions are not obtained. Installing the probe in a tee is not recommended as the flow profile and the flow area are distorted (See figure 5). For applications where it is desirable to install or remove the probe without having to shut down the process, The Magnetrol Retractable Probe Assembly (RPA) can be utilized. See the TA2 Sales Brochure (Magnetrol bulletin 54-140) for more information. WARNING To avoid potential damage or injury, never loosen a compression fitting while sensor is under pressure. NOTE: Remote electronics is recommended for operating tempera- tures greater than +250° F (+120° C) or in locations where the temperature of the electronics will exceed +175° F (+80° C). Optionally, an insertion probe with extended probe length to provide at least four inches (100 mm) between the electronics and the compression fitting can be utilized. NOTE: The sensor must be installed in a location where moisture cannot drip or come in contact with the heated element. Any contact with condensed moisture in the gas flow will cause a false high flow indication. Consider mounting the probe at a 45° angle from top, from the side or bottom of the pipe to minimize possibility of condensed moisture running down the probe and contacting the sensor (see Figure 6). In extreme cases, it may be necessary to insulate or even heat trace the pipe to prevent the condensation of moisture. The TA2 with an insertion probe provides a point meas- urement and assumes that a fully developed profile exists. See Appendix. The user has the ability to compensate the flow measurements based upon flow profile considerations under the Advanced Configuration section of the software. See Section 2.5.11. NOTE: If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired. Figure 6 Install the TA2 at an Angle where Condensed Moisture may be Present |
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