1. Manuals
  2. Brands
  3. Intek Manuals
  4. Measuring Instruments
  5. Rheotherm 100
  6. Manual

Intek Rheotherm 100 Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
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

Advertisement

Table of Contents

Troubleshooting

loading

Related Manuals for Intek Rheotherm 100

Summary of Contents for Intek Rheotherm 100

  • 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 Westerville, Ohio 43082-9057 TEL: (614) 895-0301 •...

  • Page 2: Table Of Contents

    Figure 2. Flow Rate vs. Output Curve ..........- 18 - ©Intek, Inc. 2010 Manual no.

  • Page 3: General Information

    This model 100 has a non-linear output. 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

    For the Model 100 the non-linear output is approximately proportional to the logarithm of flow. 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.

  • 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 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. Therefore, effective insulation should be installed around the inlet and outlet straight line runs.

  • Page 8: Electronics

    Intrusive Probes — IMPORTANT: Recommended straight run for best accuracy is 20 diameters up stream and 10 diameters down stream. The various probe transducers are mounted through a threaded collar (NPT/2I and NPT/I) or flanged tee (BF/2I or BF/I). Other fittings and sensor designs are also available and are discussed on the Custom Information page.

  • Page 9: Electrical Connections

    The electronics housing should be installed keeping in mind the length and routing of the transducer cable. Standard cable length is six feet but it can be specified up to 200 feet. If, after calibration of the unit, the cable length is changed (a portion cut off or additional cable spliced on), there may be a shift in the calibration due to the change in cable resistance.

  • Page 10: Operation

    SECTION 3 OPERATION 3.1 START UP Typically, the instruments come from the factory set up for the flow range of interest to the customer. Following installation all that is required is to switch on power and initiate flow in the measurable flow rate range.

  • Page 11: Output Curve

    Flow straightener — TU sensors of " or larger size may require a flow straightener in certain low viscosity liquids. The straightener is used to keep the flow regime out of the transition region (from laminar to turbulent). The straightener is shipped installed in the flow tube.
  • Page 12 Restore power. Connect a DC voltmeter across the TEMP ( ) and the GND ( ) test point jumpers. Select R3* for proper TEMP value. Select R2* (coarse) and adjust R1* (fine) for value. G. Compare the measured flow rate and the indicated flow rate to original calibration data of Table II.
  • Page 13 - 11 - MODEL100 REV D.wpd...

  • Page 14: 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 15: Spare Parts

    4.3 SPARE PARTS There are no normally recommended spare parts to stock. The transducer and electronics are a matched set and therefore are not interchangeable with others. Should a spare be needed, a complete unit should be ordered and stocked. For AC powered units, the spare fuse is a ½A, fast acting fuse. Replace fuse with Wickmann part number 3730500041 or equivalent.

  • Page 16: 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 17: 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: Input Power: Q 230 Vac, 50/60 Hz Q 24 Vdc 115 Vac, 50/60 Hz Output: Q 0-5 Vdc Q 0-10 Vdc...
  • Page 18 TABLE II. ORIGINAL CALIBRATION DATA FOR FUNCTIONAL TEST Unit Serial Number - Instrument Linear Output Flow Rate TEMP Display Note: An offset of data in Column III and IV (with respect to Column II) may appear if the instrument has been field adjusted. - 16 -...
  • Page 19 Figure 1. Rheotherm® 100 Rev. B Signal Conditioner PCB Layout - 17 -...
  • Page 20 Figure 2. Flow Rate vs. Output Curve - 18 -...

Table of Contents