WS-PRO2 Weather Station Installation, Operation, Maintenance, and Troubleshooting Manual GTB 27176 July, 2007
Table of Contents 1.0 General Information................................................................................................ 4 2.0 Installation Tasks .......................................................................................................... 6 2.0.1 Tools Required................................................................................................... 6 2.0.2 Preparation ....................................................................................................
7.1.3 Desiccant.......................................................................................................... 57 7.1.4 Sensor Maintenance ......................................................................................... 57 7.2.0 Troubleshooting ...............................................................................................
WS-PRO2 Weather Station 1.0 General Information The Rain Bird WS-PRO2 Weather Station, when used in conjunction with the Rain Bird Cirrus, Nimbus II, or Stratus II Central Control system, provides the irrigation professional with a powerful tool to aid in the growing of lush, healthy, green turf grass, while conserving important resources, such as water and power.
Model WSPRO2PH - A phone modem system for use when the weather station is further than 20,000 feet from the Central Control Computer or when they cannot be connected by a communication wire path. The system communicates utilizing a standard, dedicated phone service. A separate power source is required for this weather station.
2.0 Installation Tasks 2.0.1 Tools Required The tools required for weather station installation are listed below. 2.0.1.
Electrical Tape Step ladder (6') Station manuals Station log and pen Open end wrenches: 3/8", 7/16", ½", (2) 9/16" Socket wrench and 7/16" deep well socket Adjustable wrench Pliers Conduit and associated tools (as required) Felt-tipped marking pen Claw hammer Pipe wrench (12") 2.0.2 Preparation Immediately upon receipt of your weather station • Open shipping carton(s). • Check contents against invoice and shipping checklist. Contact Rain Bird immediately about any shortages.
TH I S SI DE U P THIS SIDE UP Cut To Open Box Top Packing Middle Packing Bottom Packing WS-PRO2 Top Layer WS-PRO2 Bottom Layer Figure 1 Wind Vane Manual Top Layer Instruction Manual Cardboard Containing Wind Vane Figure 2 WS-PRO2 Weather Station Manual GT 27176 Page 8 of 61
-T DESI PAK 301 BAT TER Y Bottom Layer Figure 3 2.1 Site Selection Selecting an appropriate site for the weather station is critical in order to obtain accurate meteorological data. In general, the site should be representative of the general area of interest, and away from the influence of obstructions such as buildings and trees. The weather station should not be located where sprinkler irrigation water will strike sensors or instrument enclosure.
H H 10 MADE IN USA Height of tree (T) Logan, Utah T 0 1 Figure 4 2.1.2 Temperature and Relative Humidity Sensors should be located over an open level area at least 9 m (EPA) in diameter. The surface should be covered by short grass, or where grass does not grow, the natural earth surface. Sensors should be located at a distance of at least four times the height of any nearby obstruction and at least 30 m (EPA) from large paved areas.
• • • • Shaded areas Swamps Areas where snow drifts occur Low places holding standing water after rains 2.1.3 Precipitation A rain gage should be sited on level ground that is covered with short grass or gravel. In open areas, the distance to obstructions should be two to four times (EPA, AASC) the height of the obstruction. 2.1.4 Solar Radiation Pyranometers should be located to avoid shadows on the sensor at any time.
the declination for Logan, Utah is 13.80° East. True North is 360°- 13.80° or 346.2° as read on a compass. Note: Other methods employ observations using the North Star or the sun, and are discussed in the Quality Assurance Handbook for Air Pollution Measurement Systems, Volume IV - Meteorological Measurements4. Figure 5 2.1.7 NSSDC CGM Service The NSSDC CGM (Corrected Geomagnetic) Service provides an easy way of determining magnetic declination of a specific site.
Figure 6 Figure 7 Transformation between CGM and GEO coordinates and modeling of the geomagnetic field parameters is required. Results of GEO-CGM calculations: Geocentric Lat. Long. CGM Lat. Starting point at 0.0 km: 41.78 248.15 49.37 Long. L-value Re 311.42 2.36 IGRF Magnetic Field H,Nt D,deg Z,nT Oval & Azimuth angles N/S:+E/W 20676 15.01 13.8 49806 5.97 MLTMN in UT 7:53 Magnetic declination is bold in this example to show its location in the table.
The declination in this example is 13.80 degrees. As shown in Figure 5, the declination for Logan, UT is east, so True North for this site is 360 – 13.80, or 346.2 degrees. Figure 8 Declination Angles East of True North Are Subtracted From 0 to Get True North.
3.0 Base Tower Installation CAUTION: Do not fit the WS-PRO2 Tower sections together until the appropriate time. Once attached, they cannot be detached. The WS-PRO2 Tower provides a support structure for mounting the WS-PRO2 weather station components. Figure 10 shows a typical Tower installation option. The tower is designed to withstand winds of 100 mph. The lightning rod assembly is attached after the instrumentation enclosure is installed.
3.0.2 Installation of Concrete Base 1. The ET Tower attaches to a user supplied concrete foundation constructed as shown in Figure 11. 2. Construct the concrete form with 2" x 4" lumber and 16p nails. 3. Assemble the template and anchor bolts. There should be two nuts below and one nut above the template on each bolt. 4. Clear an area large enough to set the form at the desired elevation. 5. Dig a hole 2 feet x 2 feet x 2 feet. Lighter soils may require a deeper hole.
SIDE VIEW FORM TOP VIEW 2" FORM WIRE NORTH ANCHOR BOLT 24" 24" SMALL CAVITY CEMENT PAD 24" FORM WIRE TEMPLATE Figure 11 3.1.0 Base Tower Components 3.1.0.1 Supplied Components (1) Upper Tower Section (Tapered) (1) Lower Tower Section (6) ½ inch Washers (1) 12 foot 10 AWG Ground Cable (1) Tower Cap (1) 20' communications cable (1) 20' power cable Refer to Section 2 for components supplied by installer. 3.1.1 Tower Installation Attach the tower to the base as shown in Figure 12. 1.
4. Cut and save a 9 inch piece of 12 AWG ground wire from the 12 foot length provided. Thread the remaining 11 foot ground wire through the tower. Secure all wiring so it does not slip back into the tower or conduit. 5. Place the tower cap over the tower end. 6. Raise the tower on a still day. Place a washer on top of the two nuts on each foundation bolt. Taking great care not to damage cables between the tower and conduit, raise the tower and lower it onto the conduit and mounting bolts.
3.1.2 Weather Station Grounding 3.1.2.1 Supplied Components (1) 5 foot 4 AWG Ground Cable (1) Copper Ground Lug, Bolt (1) Ground Rod, Clamp Refer to Section 2 for components supplied by installer. 3.1.3 Tower Grounding Procedure Ground the tower as shown in Figure 12. 1. Place the ground rod clamp on the ground rod which is a part of the three rod grounding grid. Secure it about 3 inches from the top. Do this before the rod is driven into the ground. Be careful not to damage the clamp with the hammer 2.
that is not easily turned off. To the output of the transformer, connect a pair of UF wires, of proper size, using “crimp-on” open spade connectors. The power wires shall be direct buried and run over to the weather station. Connect the 16VAC power wires to the “LINE” side of an MSP-1 surge arrestor, which shall be mounted in an MGP-1 grounding plate assembly. The MGP-1 grounding plate assembly shall be securely mounted on a 5/8” diameter copper-clad, ground rod - one of a 3-rod grounding grid.
coded as follows; 1 pair “black” and “white”, 1 pair “black” and “green” and 1 pair “black” and “red”. The BLACK (-XMT) & GREEN (+XMT) pair shall be connected to the BLACK & RED wires respectively, at the “LINE” end of one of the MSP-1 surge arrestors. The BLACK (-XMT) and the RED (+XMT) wires from the “EQUIPMENT” end of this MSP-1 surge arrestor shall be connected to the WHITE (-XMT) and the GREEN (+XMT) wires of the communication cable furnished with the weather station.
Figure 13 WS-PRO2 Weather Station Manual GT 27176 Page 22 of 61
3.4.3 Telephone Connected Using Telephone Company Lines The Telephone Company needs to run a direct burial telephone cable to the weather station and terminate it near the base of the weather station. This needs to be a modem quality type telephone line with a separate call number.
Figure 14 WS-PRO2 Weather Station Manual GT 27176 Page 24 of 61
4.0 Instrumentation Installation The weather station datalogger, power supply, sensor connection panel, communications devices, and data retrieval peripherals are mounted in the enclosure at the locations shown in Figure 15.
Figure 15 WS-PRO2 Weather Station Manual GT 27176 Page 26 of 61
4.1.0 Enclosure, Datalogger, Power Supply 4.1.1 Battery Installation Figure 16 The PS100 power switch should be in the “OFF” position. To install the battery, remove the cover from the PS100 by sliding the latch up at one end of the cover and sliding the cover down and out. Install the battery as shown in Figure 16. Plug the battery lead into the connector labeled “BATTERY – Internal 12V 7 Amp-Hour”. Put the cover back on the PS100 and latch it in place.
Figure 17 WS-PRO2 Weather Station Manual GT 27176 Page 28 of 61
4.1.2 Solar Panel Installation Figure 18 Mount the solar panel to the tower using the mounting brackets as shown in Figure 18. Mount the solar panel to the tower so it faces south (northern hemisphere). Position it as high off the ground as practical; ensuring it cannot interfere with air flow or sunlight around the sensors. The solar panel should be oriented to receive maximum insolation over the course of the year.
Figure 19 4.1.2 AC Power Installation 1. The AC power option includes a 120 VAC to 16 VAC step down transformer. The transformer should be mounted inside a usersupplied junction box according to local electrical codes. Dangerous electrical accidents may be avoided by locating the transformer remotely and burying a low voltage line to the station. The low voltage will carry up to 500 feet on an 18 AWG power cable. 2. Shut off 110 VAC power at the main breaker.
NOTE - The splice and wire nut must be completely immersed into the silicon gel inside the splice tube to be waterproof. 4.1.3 Enclosure Installation 1. Mount and ground the enclosure on the Tower as shown in Figure 18. 2. Remove the front lid. Remove the connector cover from the back of the ET enclosure by loosening the Phillips screw at the bottom of the cover. 3. Loosen the mounting bracket bolts on the back of the enclosure wide enough to slide over the pole. Slide the enclosure over the pole.
Figure 20 WS-PRO2 Weather Station Manual GT 27176 Page 32 of 61
Figure 21 WS-PRO2 Weather Station Manual GT 27176 Page 33 of 61
Figure 22 4.1.3 Sensor Connection Install the sensor set as described in Section 4. Each sensor cable plug attaches to a unique bulkhead connector as shown in Figure 23. The sensor cables are individually marked to match up with the sensor labeling on the back of the enclosure.
Earth Ground Sensors TEMP CS615 WS/WD SDI 12 TEMP/SONIC RAIN (PRECIP) TEMP/RH SOLAR RADIATION COMM POWER BNC Coaxial Connector Standoff Figure 23 Connect the power and communication cables NOTE It’s very important that each plug is completely seated on to the connector and the locking ring turned ¼ revolutions clockwise. Failure to seat the plug completely could cause corrosion and water damage to both the enclosure and the sensor cable. .
Figure 24 Loosely wire tie power, communication, and grounding cable to the wire tie harness at the top of the back of the station. Do NOT clip back the wire tie at this time. See Figure 22.
Figure 25 Replace the connector cover. The tab at the top of the connector cover slides into the opening on the back of the cross arm. Ensure that all cables and connector caps are under the cover before tightening the Phillips screw at the bottom of the cover. Make sure that all cables coming out of the top right of the connector cover are not being pinched. See Figure 25. Tighten down the wire ties holding cabling to the wire tie harness and clip off any excess. 4.
4.2.1 Phone Modems If you received a telecommunication kit separate from the ET Enclosure, follow the "Internal Installation" procedures outlined in later sections. Figure 26 4.2.1.0 Internal Installation For installation inside the WS-PRO2 Enclosure, the following components are provided in the phone modem kit: (1) COM220 Phone Modem (1) 12 inch RJ-11 Patch Cord (1) Mounting Bracket (4) Screws (1) 12 inch 14 AWG Ground Wire Install the phone modem as shown in Figure 26. 1.
(1) Direct Burial Splice Kit (1) 20 foot Telephone Patch Cord with Connector 1. Connect the 20 foot patch cord to connector marked COM on the external back panel, under the protective cover. 2. Splice the labeled "Tip" and "Ring" lines of the patch cord to the telephone service line. Use the direct burial splice kit when splices are in a valve box or buried. NOTE - The splice and wire nut must be completely immersed into the silicon gel inside the splice tube to be waterproof. 4.2.
Install the short-haul modems as shown in Figure 27 and 28. 1. Mount the Rad / SC932C mounting bracket into the WSPRO2 Enclosure with the 3 pre-threaded screws provided. 2. Connect the Rad Modem and SC932C. Strap them into the mounting bracket under the Velcro strap. 3. Connect the SC932C 9-pin port to the internal WS-PRO2 Enclosure 9-pin port with the blue ribbon cable provided. 4. Wire the Rad Modem to the WS-PRO2 Enclosure with the 12-inch patch cord.
4. Route the user-supplied cable from the remote splice to the surge protector. Connect it and the 5-foot patch cord to the surge protector. NOTE - The splice and wire nut must be completely immersed into the silicon gel inside the splice tube to be waterproof. Figure 28 (Note – for illustration purposes only – does not show proper use of MSP-1) 4.2.3 Sealing and Desiccating the Enclosure The WS-PRO2 Enclosure is supplied with two desiccant packs.
NOTE - Putting desiccant into the station should be the very last thing that is done after all other weather station installation steps have been completed.
5.0 Installation of Sensor Arm 5.1.
5.2.0 Installation Install the WS-PRO2 Sensor Arm after the WS-PRO2 Enclosure is mounted on the Tower. You may need to temporarily remove the communications option. Mount the sensor arm as shown in Figure 30 without the wind sensor attached. Adjust the bolts at the base of the pole to vertically level the top section of the mounting pole. Screws (4) Figure 30 1.
2. Remove the yellow shipping cap from off the end of the temperature/relative humidity sensor. See Figures 31 and 32. 3. Insert the temperature/relative humidity into the gill radiation shield until it stops or a “click” is heard. 4. Attach the gill radiation shield to the underside of the cross-arm using the two Phillips screws from step 1.
Figure 32 WS-PRO2 Weather Station Manual GT 27176 Page 46 of 61
6.0 Sensor Installation 6.1.0 Wind Sensor Install the Wind Sensor as shown in Figure 33 and 34 after the sensor arm is securely installed. WARNING Plugging this sensor into the connector marked “SDI 12” can result in damaging this sensor, the main enclosure connector board, or both.
Shoulder Screw South Alignment Sticker UTION ENTIOMETER ENT 5mA FACE SOUTH Alignment Screw Figure 34 WARNING The wind vane can be easily damaged if dropped or bent. Leave the wind vane in the protective cardboard sleeve until it’s ready to be installed. 1. Remove the alignment screw at the base of the Wind Sensor (Figure 34). Insert the Wind Sensor into the Mounting Shaft. Align the hole in the shaft with that in the base and replace the screw. Do not over tighten the alignment screw.
the U-bolt. Tighten up the U-bolt to hold the sensor firmly. Plug the cable into the mating connector on the sensor. Plug must be fully seated and locking ring turned fully clockwise. 4. Install the wind vane using the Allen wrench supplied with the vane. Wind vane should be perpendicular to the cross-arm. Put the sticker over the wind vane Allen screw opening. 5. Remove and keep the shoulder screw. The shoulder screw will be needed for replacing bearings and/or potentiometer.
6.2.0 Rain Gauge Installation Pull the gold funnel up and off of the top of the rain gage. Remove the rubber band holding the tipping mechanism in place. The rain gage bubble level mounted on the tipping mechanism is dependant on how vertical the pole was installed. Adjust the bolts at the bottom of the pole if necessary. Put the gold funnel back on the top of the rain gage as in figure 35. Figure 35 6.3.0 Pyranometer Level the pyranometer as indicated in Figure 36.
Leveling Screws Figure 36 Figure 37 WS-PRO2 Weather Station Manual GT 27176 Page 51 of 61
6.4.0 Soil Temperature Sensor (Optional) Soil temperature sensors do NOT have an armored outer jacket. The jacket is waterproof but NOT cut proof. The recommended method is to bury conduit from the weather station to the soil temperature site and route the sensor cable through the conduit. Bury the end of the sensor so it is in contact with the soil surface to be measured. See manual for complete instructions.
3 4 2 6 5 1 Connector Pin Air Temperature and Relative Humidity Sensor Relative Humidity (0-1VDC) 1 Air Temperature (0-1VDC) 2 Not Used 3 12V Switched Supply 4 Analog Ground 5 Shield 6 Datalogger 1H 1L 12VDC Switched Supply AG G Figure 38 Schematic of RH and Temperature Probe and Connector Temp/RH Wind Speed and Wind Direction Connector Pin 10K OHM 1K OHM 10K OHM Potentiometer Excitation 3 Wind Direction Signal Return 1 Datalogger E2 2H 3 4 2 6 Pulse Analog Ground 2 Wind Spe
3 4 2 6 1 5 Connector Pin Solar Radiation Sensor Datalogger 1 3H 40.2 - 90.
Connector Pin Tipping Rain Bucket Not Used 1 3 4 2 6 Not Used 2 Not Used 4 Pulse 3 Ground 5 1 5 Datalogger Magnetically Activated Reed Switch Shield P2 G 6 G Figure 41 Schematic of Rain Sensor and Connector Rain (Precip) WS-PRO2 Weather Station Manual GT 27176 Page 55 of 61
7.0 Maintenance and Troubleshooting 7.1.0 Maintenance Proper maintenance of weather station components is essential to obtain accurate data. Equipment must be in good operating condition, which requires a program of regular inspection and maintenance. Routine and simple maintenance can be accomplished by the person in charge of the weather station. More difficult maintenance such as sensor calibration, sensor performance testing (i.e.
7.1.1 Instrumentation Maintenance The instrumentation requires a minimum of routine maintenance. A few preventative maintenance steps will optimize battery life and decrease the chances of datalogger failure. 7.1.2 Batteries Rechargeable power supplies should be connected to an AC transformer or unregulated solar panel at all times. The charge indicating diode should be "ON" when voltage to the charging circuitry is present.
3 months • • Clean the Gill Radiation Shield by removing the two Phillips screws holding it to the sensor arm. Gently pull the sensor out of the shield. Clean the gill shield using warm mildly soapy water. Rinse with clean water and allow the shield to dry before putting it back on the sensor arm. If necessary clean the white filter element on the end of the temp/RH sensor. To clean the filter, unscrew it from off the end of the sensor and put it in a cup of CLEAN DISTILLED WATER. Use no soap.
Material Authorization number or contact Campbell Scientific for gasket cost to replace gasket in the field. 4-5 years • • • • • • Check all cabling for sensors, communication, and power. Replace as required. Check enclosure relative humidity sensor (item# 10070). To check this sensor take the lid off the enclosure during routine desiccant replacement and leave it off for 5 – 10 minutes before putting in new desiccant.
• • reconnecting the battery plug. Keypad should power up and the message “HELLO” seen on the display. Call Campbell Scientific if still no response. No Response from Datalogger through SC32A or Modem Peripheral At the datalogger: • • • • • • • • • • Make sure the battery has been installed and the power switch set to “ON” (section 4.1.1 – 4.1.3). Use a voltmeter to measure the voltage on the 12V and G terminals (see Figure 17); the voltage must be between 9.6 and 16 VDC.
• • • Make sure the battery voltage is between 9.6 and 16 VDC. Verify sensors are plugged into the correct bulkhead connector and locking ring is securely in place (see Figure 17). Check connectors for any corrosion on pins. If Smart Weather is used to create the station program double check the wiring diagram to see if it matches the physical wiring on the bulkhead connectors on the back of the enclosure.
