User Manual - Upper Brushy Creek WCID
Contents
1. KIT High Sierra Electronics Model 2400 Tipping Bucket Rain Gauge Top Section 1mm and 0 01 inch Tipping Buckets Instruction Manual 60 2400 00 B 03 A 10 B TABLE OF CONTENTS 1 0 INFRODUCTION 254r ees tee etse nep SORES epo tis Slee tie 1 2 Receiving Inspection and Unpacking 1 39 Specifications Lies dokesore de dece 20 INSTALLATION 2 1 Installation Set u 2 2 BaseSection to Standpipe 23 Leveling deas 24 Testing and Final Assembly 3 0 OPERATION 40 MAINTENANCE 41 Specialequipment needed 42 Standard Maintenance 43 Field Calibration check 5 0 TROUBLESHOOTING 6 0 RETURNS 7 0 WARRANTY 80 APPENDIX 8 1 2400 Block Diagram 82 Tipping Bucket Mechanism 83 Field Calibration 10 INTRODUCTION 11 General Description The Model 2400 Tipping Bucket Rain Gauge Top Section is made of a powder coated 12 diameter aluminum tube with locking mechanism and a base section with 1 3 8 access tube and leveling base plate The base section can be either a roof mount option or for standpipe applications Depending on the standpipe configuration this Qo M Ov Ov Q1 GI d 4 Q Q Q Q Q Q2 Q IJ I2 T2 I2 can be either slotted or with a locking mechanism An anodized aluminum funnel with insect screens is mounted in the top of the 12 diameter tube A Model 2400 3 Tipping Bucket with a magnetically operated sealed reed switch provides a reliable normally open momentar2. 1 599 for Precipitation Rates from 0 150 mm Hour Output Normally Open Momentary Contact Optional Form C Three wire switch Top Section Dimensions 12 Diameter x 23 High Shipping Weight 13 Lbs with tipping bucket 20 INSTALLATION 2 1 Installation Set up Unlock the Upper Tube from the base section rotate clockwise and lift up to remove from the base section Set the Upper Tube aside Remove the rubber band that keeps the tipping bucket from moving during shipping and verify that the bucket can now move freely between the calibration screws The sensor cable is now routed through the 1 3 8 tube and out the bottom To install the 2400 3 Tipping Bucket on an existing base section place the 2400 3 Tipping Bucket Mechanism on the base section mounting plate over the three 4 20 mounting studs The correct sequence for the hardware starting from the bottom is as Model2400 April 2004 follows a leveling spring b 2400 3 Rain Gauge c Va SS flat washer and d V4 20 SS nut 2 2 Base Section to Standpipe The sensor cable is dropped into the standpipe and the base section is set in place on the standpipe Rotate the base section counter clockwise and lock in place If using a slotted base section align the slots with the nutters in the standpipe and secure with the four 10 32 button head screws 2 3 Leveling The Model 2400 3 Tipping Bucket sits on spring loaded mounting studs To level adjust the 14 20 SS nuts such t
3. 20 seconds per tip Imm tipping bucket You may fill most of the bucket faster but the rate should be slow as the bucket tips With 605 ml of water the bucket should tip 8 times with 21 ml of water remaining If after eight tips the volume of water remaining in the bucket or bottle is between zero and 40 ml of water the tipping bucket may be considered within tolerance this is a three percent tolerance After the eighth tip the remainder of water in the calibration bottle may be measured rather than run through the tipping bucket Measure the water remaining with one of the graduated cylinders If the tipping bucket calibration check falls outside of a tolerance that is acceptable the field test should be run again If a second test confirms that the tipping bucket is out of tolerance the tipping bucket should be returned to High Sierra Electronics for re calibration Field adjustment of the calibration is not recommended Example Volume of water 72 97 Number of tips expected t remainder 605 72 97 8 291tips Remainder x 72 97 remainder in ml 0 291 x 72 97 21 ml Tolerance with 3 error acceptable volume introduced x 03 605 x 0 03 18ml Model 2400 April 2004 9 8 3 4 0 01 inch tipping bucket calibration check Follow the directions in section 8 3 3 The Volume of water placed in the calibration bottle may be reduced to 306 milliliters The bucket should tip 16 times with 9 5ml remaining An acceptable range is no water in
4. Graduated Cylinder 10ml Graduated Cylinder Eye Dropper or Syringe 8 3 2 Simple Calibration bottle A simple calibration bottle may be made from a plastic water or juice bottle Drill a hole near the top the natural top of the bottle and insert a vent tube in the bottle The vent tube should form a U with the inside leg not quite touching the bottle bottom and the outside leg protruding an inch or more above the bottom of the bottle Secure the outside leg of the vent tube to the bottle with water resistant tape Place a bead of silicone caulking at the vent tube opening Drill two or three 1 16 inch holes in the bottle top Using the 100ml and 10ml graduated cylinders carefully measure the desired volume of water and fill the bottle Mark the water level with water resistant ink It is best to perform this initial calibration a couple of times to be certain that the calibration is consistent A single calibration check using the calibration bottle described above should take about 15 minutes Note After filling the bottle and inverting it gently blow through the vent tube to free any water trapped in the tube If the flow appears Model2400 April 2004 8 restricted during the calibration check blow gently through the tube to restore normal flow It should be noted that the flow will slow as the water level decreases At the beginning of the test there will be about 1 5 minutes between tips The last tip may take 4 minutes or longer Gen
5. Maintenance The Model 2400 should be serviced at a minimum of once per year In areas that have a very large insect population a more aggressive and frequent maintenance program may be needed to prevent insects from clogging up the drain holes During the maintenance visit to the site use the following checklist Model2400 April 2004 3 1 Clean dirt debris from funnel and funnel tube 2 Clean dirt debris from Tipping Bucket 3 Check switch operation The tipping bucket shaft should have 0 030 0 050 inches of free play The magnet arm should freely pass the reed switch There should be at least 005 clearance between the magnet and the reed switch when the shaft with magnet arm is shifted towards the magnet If the magnet is too close to the reed switch carefully bend the arm until there is sufficient clearance When the bucket is resting on the acorn nuts your ohmmeter will read infinite resistance As the magnet passes over the switch the resistance of the contacts should be less than 1 Ohm Be certain that when the shaft is shifted away from the reed switch there is still switch closure 4 Check AII Cables amp Connectors 5 Check Enclosures for Leaks Insects Spider Webs etc 6 Check for Physical Damage The rim of the funnel should be round as any dents could affect the accuracy of the gauge Bullets and other penetrating objects will affect operations and or destroy the tipping bucket mechanism 43 Field Calibr
6. for prices and availability of a loaner Model 2400 3 For technical assistance with this product consult High Sierra Electronics technical personnel at Phone 1 800 275 2080 or FAX 1 530 273 2089 between 8 00 AM and 5 00 PM Pacific Coast time Monday thru Friday To e mail info highsierraelectronics com 6 0 RETURNS If you need to return this product for any reason call High Sierra Electronics at 530 273 2080 between 8 00 a m and 4 00 p m Pacific Coast time Ask for a return Authorization Number RA to be assigned to your unit Carefully pack the unit using a rubber band to hold the tipping bucket in place so that it will not be further damaged in shipment Write the RA on the outside of the box and on any paperwork enclosed with the unit Please include a written description of the problem and any unique conditions that occurred when the unit failed 7 0 WARRANTY All High Sierra Electronics manufactured products are warranted against defects in materials and workmanship for a period of three 3 years from the date of shipment If the equipment fails due to such defects High Sierra Electronics will as its option repair or provide a replacement for the defective part or product In no case will High Sierra Electronics be liable for more than the original purchase price Equipment supplied by High Sierra Electronics and manufactured by others carries the respective manufacturer s warranty High Sierra Electronics assumes no
7. ation check It is recommended that every two years a calibration check be performed on the tipping bucket If extra tipping buckets are available a rotation schedule may be established The tipping buckets to be checked may be returned to High Sierra Electronics for the calibration check or the calibration check may be done by maintenance personnel at the shop If no replacement buckets are available a simple field calibration is described in appendix 8 3 5 0 TROUBLESHOOTING If the Model 2400 3 Tipping Bucket Rain Gauge does not perform to specification a careful procedure should be followed to ascertain the problem It should be noted that the majority of failures are due to bad connections 1 Check the M S connector for signs of corrosion and clean as needed this includes the connector on the transmitter 2 Check the magnet under the heat shrink on the brass arm for magnetic properties using a ferrous iron steel metal A weak magnet will only operate the switch if it is right next to the switch housing but this causes drag and affects the calibration and should be returned to the factory to be rebuilt and calibrated 3 If the magnet is good then an Ohmmeter placed between pin A and pin D M S connector can verify the reed switch operation Model2400 April 2004 4 If physical damage has occurred to the Model 2400 3 it should be returned to the factory to be rebuilt if possible and calibrated Call High Sierra Electronics
8. hat the air bubble in the bull s eye level is within the centering circle 2 4 Testing and Final Assembly Plug the Model 2400 3 into the data telemetry system either data logger or transmitter and tip the bucket for a ten 10 count Verify either collection of data or transmission of data If Tipping Bucket tests O K reset the accumulator value to zero Replace the Upper Tube onto the base section rotate counter clockwise and lock in place 3 0 OPERATION The operation of the Model 2400 3 Tipping Bucket is completely automatic and requires no supervision when properly installed It has been calibrated at the factory and another calibration is only essential if the gauge has been damaged during shipping installation or through vandalism It has been found that a clean bucket is a calibrated bucket and field calibration is seldom if ever needed If your Model 2400 3 has been in the field for a while and has collected a coating of dirt a good bath will free up any dragging of the bearings and bring the bucket assembly back into balance Tipping buckets can be out of calibration due to dragging bearings or increased weight of the bucket No adjustments are necessary just cleaning 4 0 MAINTENANCE 41 Special equipment needed 1 4 and 1 2 inch Bottle brushes and scrub brush Mild detergent or other cleaning solution and Clean rags Ohm meter Graduated cylinder and or calibration bottle if checking the calibration 42 Standard
9. the bucket after 16 tips or the bucket just tips for a 17th time Example Volume of water 18 53 Number of tips expected remainder 306 18 53 16 514 tips Remainder x 18 53 remainder in ml 0 514 x 18 53 9 5 ml Tolerance with 3 error acceptable volume introduced x 03 306 x 0 03 39ml Model2400 April 2004 10
10. tly blowing through the vent tube while the bucket is filling can decrease the calibration check time required Try to let the natural flow occur when the bucket is almost full and ready to tip Be careful not to disturb the mechanism if this method is used The picture shown above uses a stand for holding the water bottle and a baseplate for leveling the tipping bucket In the field the top section base may be used to hold the tipping bucket and the top section and funnel loosely set over the base used to hold the water bottle 8 3 3 1mm tipping bucket calibration check Separate the top section from the spun shelf assembly of the Model 2400 Rain gauge Remove the spun shelf assembly from the standpipe The tipping bucket may be calibrated in place on the standpipe but for ease of access on tall standpipes it might be best to remove the entire top section Place spun shelf assembly on a level platform and level the tipping bucket by adjusting the 3 adjusting screws on the spun shelf assembly Connect the signal cable to either the data transmitter or a digital counter you may also just watch and count the tips With the graduated cylinders accurately measure 605 ml of clean water and fill the calibration bottle or fill to the calibration mark on the bottle Gradually pour the water from the calibration bottle through the secondary funnel If not using a slow delivery water bottle such as described above do not pour at a rate faster than
11. warranty obligation either express or implied for equipment manufactured by others and supplied by High Sierra Electronics THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANT ABILITY OR FITNESS FOR A PARTICULAR PURPOSE ALL OF WHICH IS EXPRESSLY DISCLAIMED High Sierra Electronics 13355 Grass Valley Avenue Grass Valley CA 95945 QI Phone 530 273 2080 ae Fax 530 273 2089 Model 2400 April 2004 5 Appendix 8 1 hul ae anes QN LHS iAB Q3A O0Hddv 8 00vC 19 OR TAY 3lNv3n AB NMYMO NOlL93SdO1 O0v7Z 1300 VINMOJIIVO A3TIVA SSVMO l13 9n8 SNIddll 3LV1d 9NUNQON 13X0n8 9NIddll HLIM ASSY JI3HS NndS ASSY M3MIMIS 38nL Nada Q3AON33 TANNNA ASSY 201 N33MOS TSNNN4 M3NNI MJA dol NJINIS IJINNA MALNO ASSY TANNA SLYVd eee ere il Y0 TI 20 ESEE E amp s ERE ASSV 13908 Tmo NOILOJS dol L dynoli L8 O0VC 1L9 Appendix 8 2 SJHSV ANY LAN HS N dS Wav LANDY LINDA HILIMS M33 IN aS LN3NISRQCOV AN 3201 AN N3D2V SSV NNO4 ASVOINDO AINE DONI all VUU DUre T9 8 3 Field Calibration 835 1 equipment needed Calibration Bottle 100ml
12. y switch closure for transmission by a 3200 Series ALERT Data Transmitter It is made of anodized aluminum with a one piece Model2400 April 2004 machined aluminum tipping bucket A bull s eye level is provided for leveling at the installation site 12 Receiving Inspection and Unpacking Many High Sierra Electronics products are scientific instruments Exercise care during unpacking and installation Remove the contents of the package carefully and compare the contents with the enclosed packing list Should any items be missing notify High Sierra Electronics Customer Service Please have your packing list available when you call If any of the items are received in damaged condition notify the carrier immedi ately and request an inspection You must notify the carrier within 15 days of shipment If a claim is not made within that time period then the carrier will not acknowledge any claim for the lost or damaged goods 1 2 Special inspection instructions Remove the rubber band securing the bucket of the tipping bucket assembly Inspect the tipping bucket magnet arm to insure that the magnet passes freely past the reed switch see Appendix 8 2 If the magnet drags see section 4 0 Maintenance for instructions to correct this problem Replace the rubber band before transporting the assembly to the installation site 1 3 Specifications Tipping Bucket Calibration 2400 08 1 mm Tip Optional 2400 10 0 01 in Tip Accuracy X
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