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WARRANTY
Intek, Inc. warrants each Rheotherm product to be free from defects
in material and workmanship under normal use and service, Intek's
obligation under this warranty being limited to making good any part
or parts thereof which shall, within one (1) year after delivery of such
product to the original purchaser, be returned to Intek with
transportation charges prepaid and which Intek's examination shall
disclose to its satisfaction to have been thus defective; this warranty
being expressly in lieu of all other warranties, express or implied and
all other obligation or liabilities on Intek's part. The purchaser will
assume all responsibility and expense for removal, decontamination
and reinstallation of equipment.
Rheotherm flow meters are manufactured under United States patent numbers 4,255,968; 4,942,763; 4,949,578; 5,485;754 and 5,752,411
Intek, Rheotherm, Rheovec, Rheomax and RheoVac are registered trademarks of Intek, Inc.
Intek, Inc.
751 Intek Way
Westerville, Ohio 43082-9057
TEL: (614) 895-0301
FAX: (614) 895-0319
www.intekflow.com
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Table of Contents
Troubleshooting
Related Manuals for Intek Rheotherm 100FS
Summary of Contents for Intek Rheotherm 100FS
- Page 1 Rheotherm flow meters are manufactured under United States patent numbers 4,255,968; 4,942,763; 4,949,578; 5,485;754 and 5,752,411 Intek, Rheotherm, Rheovec, Rheomax and RheoVac are registered trademarks of Intek, Inc. Intek, Inc. 751 Intek Way...
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Page 2: Table Of Contents
Figure 2. Rheotherm® Flow Switch Add-on Option ....... . . - 15 - Intek, Inc. 2010 Manual no. -
Page 3: General Information
10 to 1 flow range. They are manufactured exclusively by Intek, Inc. and employ a patented thermal technique used by industry since 1978. The unique transducer designs have protected sensors, are easy to install and require little or no maintenance. -
Page 4: Description Of Operation
The amount of heat removed from the heated sensor by the stream is related to fluid velocity. Hence, the measured temperature differential between the reference sensor and heated sensor is a function of flow rate. Intek, Inc. is licensed to use this patented and trademarked flow measurement technique. Nonintrusive transducer... - Page 5 Any special information pertaining to your unit is covered under CUSTOM INFORMATION (SECTION 6). Time should be taken to carefully read these instructions prior to installation of the equipment. Should any questions arise or problems occur, call Intek for immediate assistance.
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Page 6: Installation
SECTION 2 INSTALLATION 2.1 TRANSDUCER IMPORTANT: All transducers have a directional arrow on the tag and/or etched into a metal part. Before installing a sensor, please note proper flow direction. This is critical to sensor operation. IMPORTANT: If you have more than one Rheotherm unit, make sure the complete serial number of the transducer matches the complete serial number of the electronics. -
Page 7: Electronics
Some TU transducers have an integrally mounted cable; do not pull on this cable, or attempt to remove the fitting where the cable enters the shell. Fluid temperatures other than ambient require special attention. Thermal gradients from one end of the transducer to the other, as well as along the radius of the connection pipe, are undesirable. -
Page 8: Electrical Connections
NEMA 4 The standard industrial housing, this enclosure is watertight (non-submersible) when the door is properly clamped shut. The housing should be mounted such that wire/cable ports are located at the bottom of the housing, to reduce problems associated with water spray, condensation and settling of dust and dirt. -
Page 9: Operation
SECTION 3 OPERATION 3.1 START UP Typically, Rheotherm flow switches come from the factory set up for a 10 to 1 flow rate range, and with the trip level set approximately as requested by the customer. SECTION 6 shows whether the unit is factory set as a low flow switch or as a high flow switch (see 1 or 2 below as appropriate). -
Page 10: Adjusting The Trip Point
3.3 ADJUSTING THE TRIP POINT Adjust the flow switch trip level as follows: Establish a flow rate at the desired trip level. (This should be done with flow in the line, not at zero flow. Select a flow rate below your normal usage. One example would be to use 50% of your lowest normal flow rate as the set point.) On the small switch board, if LED is green, adjust "Trip"... - Page 11 The transducer isolation check is performed as follows (see Figure B): A. Disconnect the transducer cable from the electronics. Make the circuit connections illustrated in Figure B. Probe all the conductors and note the voltage with respect to the shield. All readings should be less than 0.5 Vdc.
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Page 12: Maintenance
SECTION 4 MAINTENANCE 4.1 GENERAL MAINTENANCE Certain precautions should be taken to insure proper performance of all models of flow instruments. Since the measurement technique involves a signal resulting from heat transfer to the flowing medium, care should be exercised to prevent build-up of varying layers on the walls of the transducer. Layers such as bacterial growth, dried paints, gas bubbles and non-solubles can result in measurement below actual flow rates. -
Page 13: Trouble Shooting
4.3 TROUBLE SHOOTING TABLE I. TROUBLE SHOOTING GUIDE OBSERVATION PROBABLE CAUSE REMEDY Flow trip level continually Coating forming on wetted 1. Clean transducer drifting downward with constant surface of transducer. periodically. flow. After switch has been operating 1. Loose transducer cable 1. -
Page 14: Customer Service
5.3 FACTORY AND FIELD SERVICE If you request field service, Intek has experienced engineers available to meet your needs. Many of the repairs or recalibrations will require returning the instrument to the factory. If a problem cannot be solved over the phone, with your help, we will determine if factory service or field service will be the best solution. -
Page 15: Custom Information
SECTION 6 CUSTOM INFORMATION 6.1 UNIT IDENTIFICATION Model no.: Serial no.: Customer identification: 6.2 CONFIGURATION The configuration of this unit, as originally shipped from the factory: Flow switch setting: Q Low flow switch Q High flow switch Q Other Input Power: Q 115 Vac, 50/60 Hz Q 230 Vac, 50/60 Hz Q Other...
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