TX100/200-SERIES TX101/201 TX115/215 ISO 9 0 0 1 : 2 0 0 8 CERTIFIED COMPANY TX100/200-SERIES INSERTION TURBINE INSTRUCTIONS INSERTION TURBINE INSTRUCTIONS
TABLE OF CONTENTS General Information Features, Specifications.......................................................................................................................................Page 1 Installation Piping, Immersion, Positioning the Meter...........................................................................................................Page 2 Straight Pipe Recommendations...........................................................................................................
GENERAL INFORMATION The TX100/200-Series are adjustable depth insertion turbines that come in brass or 316 stainless models to fit 3” to 40” pipe. Adapters mate with standard 1-1/2" (101/201) or 2” (115/215) FNPT fittings such as saddles and weldolets which may be purchased either locally or from Seametrics. Ruby bearings and a non-drag pickoff give these adjustable insertion turbine flow sensors a wide flow range and long life. A sensor detects the passage of miniature magnets in the rotor blades.
INSTALLATION An insertion flow sensor measures the velocity of flow at one point in the pipe; flow rate and total can be inferred from this one point. Accuracy is decreased by any factor which makes the flow at the measured point unrepresentative of the entire flow stream. This includes distorted flow patterns caused by upstream fittings too close to the sensor. The worst offenders are fittings that increase the flow on one side of the pipe, such as partially-opened gate or butterfly valves.
INSTALLATION STRAIGHT PIPE RECOMMENDATIONS (X = diameter) 10X 5X Reduced Pipe 10X Two Elbows In Plane Two Elbows, Out Of Plane 5X 20X 5X 20X 5X Expanded Pipe 30X Spiral Flow Propeller Meter 50X Swirling Flow Partially Open Butterfly Valve Page 3
INSTALLATION FULL PIPE RECOMMENDATIONS Possible Problem Better Installation Ensures full pipe Allows air pockets to form at sensor Possible Problem Post-valve cavitation can create air pocket Possible Problem Air can be trapped Page 4 Better Installation Keeps pipe full at sensor Better Installation Allows air to bleed off
INSTALLATION TX101/201 INSTALLATION Fitting Installation. TX101/201 adapters mate with a 1-1/2” female NPT pipe thread adapter fitting. Any fitting that provides the matching NPT female thread may be used. Installation procedure compensates for fitting height differences. Cut a minimum 1-3/4” hole in the pipe. If possible, measure the wall thickness and write it down for use in depth setting. Then install the threaded fitting (saddle, weldolet, etc.) on the pipe. Meter Installation.
INSTALLATION 2. Measuring from the outside of the pipe to the joint in the housing, as shown in the diagram above, adjust the sensor to Dimension D and hand-tighten compression nut. 3. Align the conduit housing with the centerline of the pipe, as shown. Be sure the arrow on the housing points in the direction of flow. "D" strain relief FLOW 4. Check Dimension D one more time. 5. Tighten the compression nut fully. Proper Depth Setting.
SET-UP Connection. Sensors are supplied with 18 ft. of cable. For sensors with no additional electronics, see diagram for color coding. For sensors with on-board electronics, see the manual accompanying the electronics module. RED (+) 5-24 Vdc WHITE (signal) BLACK (-) Power 18' cable standard Calibration (“K-Factor”). In order to properly process pulses from the flow sensor, a number must be entered into the control to which the sensor is connected.
OPERATION Flow Range. These sensors are designed to operate at flow velocities of 0.5 to 30 feet per second (see Table 2, below). If erratic readings are encountered at low flows, check the chart to see if flow is below minimum for the pipe size. The standard shaft and bearings should have a long life at continuous high flow.
PARTS LIST 4 TX 101/201 Parts 5 TX101/201 1 2 3 6 7 8 9 TX115/215 10 17 18 19 1 Upper housing assembly 30475 2 Housing Gasket 26211 3 Lower housing Not Field Replaceable 4 Housing screw assembly 26229 (4 required) 5 Plug, steel 26073 6 Strain relief 07655 7 Sensor w/cable 26310 (Standard - FT420) 29953 (Micropower - FT415) 8 Tube Not Field Replaceable 9 Compression nut 14199 (Brass) 15064 (SS) 10 Compression Ferrule 26065 11 Adapter 30998 (Brass) 30999 (SS) 12 Ro
TROUBLESHOOTING and REPAIR Troubleshooting CAUTION! Never attempt to remove a flow sensor when there is pressure in the pipe. Loosen the compression nut slowly to release any trapped pressure. If fluid sprays out when removing the sensor, stop turning and depressurize the pipe. Failure to do so could result in the sensor being thrown from the pipe, resulting in damage or serious injury. The flow sensor has only one moving part, the rotor.
