Geonor T-200B-M User Manual
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Geonor T-200B-M User Manual

T-200b series precipitation gauge 600-mm, 1000-mm & 1500-mm capacity options
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GEONOR
T-200B SERIES PRECIPITATION GAUGE
MANUAL FOR
600-mm, 1000-mm & 1500-mm capacity options
Rev: 10.7
1

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Summary of Contents for Geonor T-200B-M

  • Page 1 GEONOR T-200B SERIES PRECIPITATION GAUGE MANUAL FOR 600-mm, 1000-mm & 1500-mm capacity options Rev: 10.7...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION – PRECIPITATION GAUGE ....3 1.1. Principle of Operation ..............3 1.2. Why is it used................3 1.3. Advantages ................3 2. INSTALLATION ............... 4 2.1. Foundation considerations............4 2.2. Plan height of collection inlet............4 2.3.

  • Page 3: Introduction - Precipitation Gauge

    With proper care sensors have been shown to record for more than 27 years without failing. The Sensor was developed in the 1960’s at GEONOR’s then parent research foundation, The Norwegian Geotechnical Institute (NGI.) Bakkehøi , et al (1985).

  • Page 4: Installation

    With the foundation flush with ground, and using the 1-m pedestal the inlet on the; T-200B (600-mm capacity) will be approximately 1.75-m above ground. T-200B-M (1000-mm capacity) will be approximately 1.75-m above ground. T-200B-MD (1500-mm capacity) will be approximately 2.05-m above ground It is recommended to install the gauge so the inlet is at least 50 cm (20 inch) above the anticipated snow depth.

  • Page 5: Pedestal Installation

    2.4.1. Pedestal details We recommend the T-200B gauge be mounted on a GEONOR pedestal. GEONOR provides galvanized steel pedestals in 1 m and 2.5 m heights. 2.4.2. Installing pedestal Mount the reaction nut, lock washer and washer on anchor bolt approx 1”...

  • Page 6: Precipitation Gauge Installation

    2.5. Precipitation Gauge installation 2.5.1. Remove gauge cover To remove the cover, release the 3 clamps around the base and lift it straight up to clear the frame. NOTE: Press hook into locking lugs to keep them from catching on base. (See photo 2-1) (Photo 2-1) 2.5.3.

  • Page 7: Electrical Hookup

    2.5.4. Insert mounting bolts Insert the 3 M8x1 bolts through the black washers into the support holes in the base and screw into pedestal. Do not tighten bolts leave space to adjust level orientation of gauge. Level the gauge by using the level supplied and adjusting the leveling screw located under the gauge.

  • Page 8: Antifreeze - As Needed

    2.6.2. Connect wires from Transient Arrestor to Interface (TH501) The wires should be properly shielded and be suitable for the environment to which it will be exposed. Geonor can supply any length cable required. Pass cable through strain-relief connector supplied through the base of the gauge.

  • Page 9: Loosen Setscrew On Transducer

    2.7.1. Antifreeze quantities required for below freezing temperatures T-200B - 600 mm gauge collection container max capacity of 12 liters. T-200B-M -1000 mm gauge collection container max capacity of 20 liters. T-200B-MD - 1500 mm gauge collection container max capacity of 30 liters.

  • Page 10: Install Alter Wind Screen (See Section 4)

    To prevent undesirable effects of wind turbulence around the gauge, a Wind Screen should be installed. The GEONOR pedestal has Wind Screen mounts on the pedestal. Using the Geonor Alter Wind Screen assures a proper installation at the specified, 13-mm height above the top of the gauge orifice.

  • Page 11: References

    3. REFERENCES Bakkehøi, Steinar; Kjell Øien and E. J. Førland (1985) An Automatic Precipitation Gauge based on Vibrating-Wire Strain Gauges, Nordic Hydrology No. 16, pp. 193-202 Tunbridge, Lloyd and Kjell Øien (1988) The advantage of Vibrating Wire Instruments in Geomechanics, 2 Intl.
  • Page 12 ALTER WINDSCREEN PARTS 1. Blades (qty 32) 2. Spacers (qty 24) 3. Ring segments (qty 4) 4. Ring segment connectors (qty 4) 5. Connectors and caps for Ring Segments (qty 4) 6. Kee-Klamps (qty 4) 7. 1” galvanized pipe, thread is necessary on one end (qty 4)* 8.
  • Page 13 4. INSTRUCTIONS FOR ALTER WINDSCREEN 1. Mark 500-mm from the threaded end on the horizontal pipes for Inner Alter. Mount connectors for ring segment on vertical sections of pipe. Mark 817- mm below the connector by wrapping tape around the pipe several times. This marks the level of the Kee-Klamp.
  • Page 14 3. Insert horizontal tubes into the threaded fittings on the pedestal. Tighten with pipe wrench. 4. Slide the Kee-Klamps on so the inside edge lines up with the 500-mm. 5. Align the clamps vertically and tighten nut with Allen key supplied. Adjustments will to be made later.
  • Page 15 6. Insert vertical pipes for Inner Alter in Kee-Klamp with connector for ring at top. The tape will rests on the Kee-Klamp. 7. Lay ring segments of inner Alter down and attach a ring connector to end of each segment. Slide the blades and spacers on in order shown below.
  • Page 16 9. Install caps to hold ring firmly in place. 10. Make adjustments. Rev: 10.7...

  • Page 17: Maintenance

    5. MAINTENANCE 5.1. Tools needed • Screw driver, 4-mm blade • Hammer • Adjustable spanner (wrench) 0-27 mm • Container for disposal of anti-freeze mixture (12 liter minimum) • Funnel • Measuring cylinder, 1 liter • Siphon • Level 5.2. Service interval Service the gauge when the container needs to be emptied.

  • Page 18: Removing And Replacing Transducer

    • Unhook the S-hook from the support dish • Hold the Sensor and remove knurled nut from top of adjustment screw • Remove the Sensor from square guide in the support rim. GEONOR model P-520M portable frequency counter. Rev: 10.7...

  • Page 19: Rust Protection Maintenance

    Install a new Sensor in the reverse order (see Section 2.5.5.) IMPORTANT: The support dish must be free to swing in all directions without noticeable resistance. Resistance in the support links can contribute to error especially with low weights in the container. When installing a new or recalibrated Sensor, use the new values for A, B and f These are given on the calibration sheet with the Sensor.

  • Page 20: Gauge – Vertical Cross Section – Shows Parts

    6. DRAWINGS / DIAGRAMS / FIGURES 6.1. T-200B Gauge – vertical cross section – shows parts ..21 6.2. Connection of TH501 Interface & transient arrestor ..... 22 6.3. Alter-shield details..............23 6.4. Concrete foundation block............24 6.5. Gauge with 1m pedestal and Alter Windscreen ....25 Rev: 10.7...
  • Page 21 Rev: 10.7...
  • Page 22 Rev: 10.7...
  • Page 23 Rev: 10.7...
  • Page 24 Rev: 10.7...

This manual is also suitable for:

T-200bT-200b-md

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