Rain Bird Pro Installation, Maintenance And Troubleshooting Manual

RAIN BIRD

Weather Station - Model - PRO

INSTALLATION MAINTENANCE AND TROUBLESHOOTING MANUAL

November 2001 GT27145B

AIN BIRD

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Weather Station – Model – PRO

The Rain Bird “Model PRO” Weather Station, when used in conjunction with the Rain Bird MAXI 5, MAXI “Nimbus” or MAXI “Cirrus” Central Control system, provides the irrigation manager with a powerful tool to aid in the growing of lush, healthy, green turfgrass, while conserving important resources, such as water, power, etc.

The MAXI 5, MAXI Nimbus or MAXI Cirrus software interrogates the Weather Station to gather information that has been gathered on a daily basis, on 5 second intervals for short haul modem only, of the climatic conditions that affect the irrigation application for the area.

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IRD

The Weather Station monitors the following climatic conditions:

Rainfall Wind Speed & Direction Air Temperature Relative Humidity Solar Radiation

The basic PRO Weather Station configuration includes sensors to monitor these conditions, a micrologger to capture this data, a modem to communicate the information to the MAXI Central Computer and a power supply.

The Rain Bird Model “PRO” Weather Station is available in two (2) basic configurations;

The MAXI 5, MAXI Nimbus or MAXI Cirrus software subjects the climatic information that it gathers to a version of the modified Penman Equation. The Penman Equation has been proven through over 35 years of university research, to be one of the most reliable predictors of turfgrass water use requirements.

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Model PRO-SH, which is a

direct wire system intended for use when the weather station is within 20,000 feet of the MAXI Central Computer and communication is via a wire path, between the weather station and the computer.

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Weather Station - Model “PRO”

Model PRO-PH, which is a

phone modem system for use when the weather station is further than 20,000 feet from the MAXI Central Computer or

when they cannot be connected by a communication wire path. The system communicates utilizing a standard, dedicated phone service.

2.0 TOOLS & SUPPLIES:

(Installer Supplied)

The installer needs access to the following tools and supplies for installation of the Weather Station.

TOOLS REQ’D.

Shovel

SUPPLIES REQ’D.

Rake Wire Strippers Screw driver, regular blade Flat Metal File Screw driver, thin regular blade Wheelbarrow Screw driver, Phillips head Hand Saw Open End Wrench 7/16” (2) - Open End Wrench 9/16” Open End Wrench ½” Open End Wrench 3/8” Claw Hammer Magnetic Compass Tape Measure 12’ - 20’ Matr’l. for Concrete Base Form:

(4) 12” Wood Stakes (1) 2”x 4”x 10’ piece of wood (8) 8p double-head nails (8)16p double-head nails 20 ft. of form wire

½ yard of concrete 6 Ft. Step Ladder Concrete trowel & edger Saw Horse Wire Fish Tape or small dia. rope

(2) Standard Size (12” x 18”)

Rectangular Valve Boxes

(3) MGP-1 Maxi Grounding Plate

Assembly (5) MSP-1 Maxi Surge Arrestor (Pipe Type) (for “JR-SH” model ONLY). (6) 5/8” Dia. X 8’-0” copper clad

grounding rods #10 Gauge or larger bare copper grounding wire - length as required. Brass Grounding Clamps - as required (20) 3-M model DBY or DBR Direct

Burial splice kits or 3-M Scotch-lok

3500 series Connector Packs. Belden #9883 or PE-39 direct burial,

communication cable - length as

required. (2) Lengths of type UF power wire

(white and black) - size and length as

required. (1) 4” x 4” electrical junction box with

cover plus connectors as required for

transformer mounting. (2) Open Spade, crimp-on type

connectors - for connecting power

wiring to transformer.

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3.0 WEATHER STATION SITE SELECTION:

Site selection for the Weather Station is one of the most crucial steps in a successful installation and an efficiently operating irrigation system. The site selection will greatly impact the accuracy of the meteorological data collected by the station. The site selection process has many constraints placed on it, and although the “perfect” site is often non-existent, the following generalities should be kept in mind.

In general, the site should be representative of the general area of interest and reflect the general conditions of the project’s turf. The more “t ypical” the site, in this regard, the more useful will be the information gathered. The site should also be away from the influence of obstructions such as buildings, trees, etc.

The weather station should not be located where sprinkler irrigation water will strike sensors or instrument enclosure. The turf around the weather station needs to be irrigated however - so it is recommended that half-circle sprinklers be placed around the base of the weather station and ”throwing OUT’ away from the weather station. In this way the turf can be irrigated and at the same time water can be kept off the sensors and instrument enclosure of the weather station.

The sensors of the weather station should be eight (8) to ten (10) feet above the turfgrass. Remember that the roof of a building IS NOT a good site for the weather station.

The weather station does NOT need to be “hidden”. The Rain Bird weather station has been engineered to be aesthetically pleasing. The urge to “hide” the station needs to be balanced with the selection of the most “typical” turfgrass area. The station should NOT negatively impact the turfgrass environment or utility. In fact, many installations prominently display the Weather Station to demonstrate their commitment to water conservation.

If the site may be prone to vandalism, an open, chain-link, 6 foot high security fence with a lockable access gate should be placed around the weather station. The fence shall be a minimum of eight (8) feet out from the weather station on all sides and should be a type that will not interfere with the accuracy of the sensors.

In your selection of a site - try to avoid sites on or near open dirt fields and asphalt parking areas. These sites are prone to high invective heats that can distort the information. Any areas that are within 90 to 100 feet “up wind” of the weather station can adversely affect the weather station reading accuracies.

The requirements of each weather station sensor must be considered when selecting the proper location for a weather station site. In addition to these generalities, each sensor has its own specialized constraints. While complete information is available, upon special request, for each individual sensor, the following are the highlights of each.

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(a) TEMPERATURE AND

RELATIVE HUMIDITY:

Sensors should be located over an open level turf area at least 30 feet in diameter. The surface should be the typical turfgrass of the area in interest. Sensors should be located a distance away of at least four (4) times the height of any nearby obstruction and at least 90 feet from large paved areas. Sensors should be protected from thermal radiation, and adequately ventilated.

Situations to avoid include:

• large industrial heat sources

• rooftops

• steep slopes

• sheltered hollows

• high vegetation

• shaded areas

• top of a hill

• bottom of a swale

• swamps

• areas where snow drifts occur

• low places holding standing

water

(b) SOLAR RADIATION:

Pyranometers should be located to avoid shadows on the sensor at any time. Mounting it on the southern most portion (northern hemisphere) of the weather station will minimize the chance of shading from other weather station structures. Reflective surfaces and sources of artificial radiation should be avoided. The height at which the sensor is mounted is not critical.

(c ) PRECIPITATION

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A rain gage should be located over level ground that is covered with short grass or gravel. In open areas, the distance to obstructions should be two to four times the height of the obstruction.

The height of the opening should be as low as possible, but should be high enough to avoid splashing from the ground.

The gage must be mounted above the average level of snow accumulation in areas that experience significant snowfall.

Standard measurement heights:

1.0 meter +/- 1.0 cm (AASC)

30.0 centimeter minimum

(WMO, EPA)

(d) DETERMINING TRUE NORTH FOR WIND VANE OREINTATION

Magnetic declination, or other methods to find True North, should be determined prior to installing the

weather station. True North is usually found by reading a magnetic compass and applying the correction for magnetic declination. (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 Measurements.) The magnetic declination is the number of degrees between True North and Magnetic North. Magnetic declination for a specific site can be obtained from a USFA map, local airport, or through a computer service offered by the USFS called GEOMAG (see page 7). A general map showing magnetic declination for the contiguous United States is shown below in FIGURE 2.

Declination angles east of True North are considered negative and are subtracted from 0 degrees to get True North. Declination angles west of True North are considered positive and are added to 0 degrees to get True North. For example, the declination for Logan, Utah is 16 degrees East. True North is 360 degrees minus 16 degrees, or 344 degrees as read on a compass.

REFER TO NEXT PAGE FOR FIGURE 2

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FIGURE 2 - MAGNETIC DECLINATION FOR THE

CONTIGUOUS UNITED STATE

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If you are using one of the commercial numbers, the following prompts will appear. Type the responses shown

PROMPTS FROM GEOMAG

(followed by pressing RETURN):

GEOMAG is accessed by phone with a PC and telephone modem and a communications program such as Pro Comm or Windows 95 Hyperterminal. GEOMAG prompts the caller for site latitude, longitude and elevation, which it uses to determine the magnetic declination and annual change. The following information, menu and prompts are from GEOMAG.

GEOMAG is a user-friendly program that provides estimates of the geomagnetic field elements, including declination and total field intensity, based upon Magnetic Models. The program is accessible by modem or through the Internet.

Modem Access:

GLDSV1> c neis [RETURN] Username: QED [RETURN}

Main Menu:

Type Q for Quick Epicenter

Determinations (QED) L for Earthquake Lists (EQLIST) M for Geomagnetic Field

values (GEOMAG) X to log out

ENTER program option: “M”

Would you like information on how to run GEOMAG (Y/N)? Enter N

Modem settings: No parity, 8 data bits

OPTIONS:

and 1 stop bit (i.e., N81).

1 = Field Values (D,I,H,X,Z,F)

Telephone numbers:

2 = Magnetic Pole Positions 3 = Dipole Axis and Magnitude

Phone Number Baud Rates

303-273-8672 2400 303-273-8673 1200 303-273-8678 1200

4 = Magnetic Center [1] : 1

Display values twice [N]: press return Name of field model [USCON90]: press return Date [current date]:

Upon carrier-signal detection, press Return once or twice.

press return Latitude :42/2 N Longitude : 111/51/2W Elevation : 4454 ft

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Example of report generated by GEOMAG:

Model: USCON90 Latitude: 42/2 N Date: 7/27/93 Longitude: 111/51/2W

Elevation: 4454.0 ft

Declination is: deg min 15 59.6

Annual change: deg min 0 -6.1

EXITING:

press “Cntrl-Z” to exit GEOMAG

When the main menu reappears either select another option or Type “X” to log out.

If you used one of the commercial numbers, the GLDSV1> prompt will reappear.

Type “LO” to disconnect.

Use of GEOMAG is free (except for telephone charges). If possible, please avoid using GEOMAG between 9 a.m. and 4 p.m., mountain time, Monday through Friday.

The declination in the example above is listed as 15 degrees and 59.6 minutes. Expressed in degrees, this would be

15.99 degrees. As shown in FIGURE 2, the declination for Utah is east, so True North for this site is 360 - 15.99, or 344 degrees. The annual change is -6.1 minutes.

Refer to FIGURE 3 below:

FIGURE 3 - DECLINATION ANGLES

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4.0 WEATHER STATION CONCRETE BASE:

SUPPLIED COMPONENTS

(4) 16p Double Headed nails

10’-0 “ length of form wire

(3) ½” x 12” long “L” Anchor Bolts

½ yard of concrete

Duct Tape

(9) ½” Nuts (3) Flat Steel Washers

TOOLS REQUIRED

(1) Stainless Steel Template (1) 1 ½” Dia. Long Sweep Elbow

Claw Hammer

Hand Saw

INSTALLER SUPPLIED

Saw Horse

Shovel

(1) 2” x 4” x 10’-0” piece of

Pliers & Wire Cutters

forming lumber

INSTALLATION:

For the following procedures - Refer to FIGURE 4 below.

1.0 The Tower for the “PRO”

to accept the end of the elbow

Weather Station - attaches to a user supplied poured concrete foundation

- constructed as shown in FIGURE

4 below.

4.0 Construct the concrete form

2.0 Dig the required foundation

hole - with a 24” square top and slanting outward sides, to the bottom of 32” square. The “Sloping” sides of the foundation are very IMPORTANT in providing the necessary support to the weather station tower, in preventing it from “leaning” or falling over, due to wind load on the station.

5.0 Place a piece of duct tape

3.0 Determine the proper location

of the long sweep elbow and dig a small cavity

that will protrude beyond the concrete base.

with 2” x 4” lumber and 16p double-headed nails. Center the form over the dug hole. Adjacent to the long legs of the form that extend beyond the hole, drive four stakes into the soil. Level the form. Secure the form to the stakes with 8p nails making sure that the form remains “level”.

over one end of the 1 ½” diameter long sweep elbow. Insert the elbow into the hole, with the taped end into the small cavity that you

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have dug on one side of the hole.

template, elbow and anchor bolts in the form.

6.0 Insert the other end of the

long sweep elbow into the center hole in the stainless steel template. Tape the end of the elbow with duct tape.

. 9.0 Steady the template assembly by

putting a 2” spacer between the template and the top of the form. Pour the concrete into the hole and form - it will require approximately ½ yard - screed the concrete level with the top

7.0 Take the three ½” x 12” long

“L” anchor bolts and install two (2) hex huts on to each bolt. Insert one in each of the holes in the template and install one of the flat washers and a nut to secure the anchor bolt to the template.

Refer to FIGURE 5.

of the form. Check to make sure the template is correctly orientated and centered. The bottom of the anchor bolt threads should be about ½” above the top of the concrete. Check to be sure the template is “level” in two (2) dimensions. Use a trowel and edger to finish the concrete.

8.0 Take the form wire and cut it

into two (2) equal lengths. Attach one end of one of the wires to one of the 16p nails on the form. String the wire up over the form and to the

BE SURE THAT YOU HAVE THE TEMPLATE PROPERLY ORIENTATED IN RESPECT TO “NORTH”. Refer to

FIGURE 4.

long sweep elbow - making a turn around it. Continue the wire over to the 16p nail at the other corner of the form (located on the same side of the form as the other nail)

The template should have the two (2) bolt holes, that are parallel with one side of the template, on the north side of the base.

and centering the template and elbow attach the wire securely to the nail. Repeat this same process with the other piece of form wire -

10.0 Wait 24 hours before removing

the concrete form. Wait 7 days before mounting the weather station to the base.

going to the opposite nails and further securing the

REFER TO NEXT PAGE FOR FIGURES 4 & 5

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FIGURE 4 - CONCRETE BASE DETAIL

FIGURE 5 - ANCHOR BOLT/TEMPLATE DETAIL

5.0 EXTERNAL WIRING TO WEATHER STATION: ( Refer to FIGS. 6 & 7)

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WIRING VALVE ACCESS BOX

At the base of the Weather Station and as near to the base as feasibly possible, dig a hole large enough to install a standard 18” x 24” rectangular valve box and cover. The valve box shall accommodate all wiring connections, one rod of a 3-rod grounding grid, MGP-1 grounding plate assemblies and MSP-1 surge arrestors.

WEATHER STATION POWER WIRING

Furnished as part of the Weather Station is a 120VAC to 16VAC power transformer. This transformer can be located in the pedestal of a field satellite controller that is in the near proximity of the weather station or some other convenient weather proof location. Install the transformer in a 4”x 4” metal electrical box with cover. Connect the 120VAC power wires of the transformer to a source of 120VAC power 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” dia. copper

clad, ground rod - one of a 3-rod grounding grid.

NOTE ! The minimum voltage to the transformer shall be not less than 112 volts.

Wire sizing shall be in accordance with the chart given below.

Wire shall be Type “UF” (underground feeder cable) with PVC insulation. The 16VAC power is used to provide constant charging of the battery within the weather station, through the battery charging circuit.

WIRE SIZING CHART

WIRE SIZE DISTANCE (feet)*

18 500

16 800

14 1275

12 2000

10 3250

8 5100

* Transformer to Weather Station

The “EQUIPMENT’ side of this MSP-1 surge arrestor shall be connected to “red” and “black” wires of the 20’power wire cable, which is furnished as part of

the weather station, and MARKED “P/N 9922”. This cable shall be routed through the 1 ½” dia. long sweep elbow

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to the base of the weather station. All wire connections and splices in the power wiring shall be made using 3-M

Model “PRO”- Weather Station

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DBY direct burial connectors. DO NOT apply power to transformer at this

time.

The RED (+RCV) & BLACK (-RCV) pair shall be connected to the RED & BLACK wires respectively, at the

WEATHER STATION COMMUNICATION WIRING

“LINE” end of the other MSP-1 surge arrestor. The RED (+RCV) and the BLACK (-RCV) wires from the “EQUIPMENT” end of this MSP-1

DIRECT CONNECTED - USING SHORT HAUL MODEMS:

(MODEL PRO-SH - Only)

surge arrestor shall be connected to the RED (+RCV) and the BLACK (-RCV) wires of the communication cable furnished with the weather station and

Coming from the Central location, furnish and install a Belden #9883,

marked P/N 9720 “ET SHORT HAUL” “COMM”.

Direct Burial Type, communication cable over to the weather station location. The Belden cable shall consist of three (3) twisted pair of wires (20 Gauge), a bare copper drain wire and an aluminum shield. The three (3) twisted pair shall be color coded as follows; 1 pair “black” and “white”, 1 pair “black” and “green” and 1 pair “black” and “red”.

This communication cable shall be routed through the 1 ½” diameter long sweep elbow to the base of the weather station. All wire connections and splices in the communication wiring shall be made using 3-M DBY direct burial connectors. DO NOT attempt to use any other type connectors as communication signal may be impaired and poor communication resulting.

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

COMMUNICATION CABLE

GROUNDING

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

The bare copper drain wire of the Belden cable shall be grounded to the grounding rod, using a brass ground wire clamp. IMPORTANT ! DO NOT ground the drain wire at the Central end of the cable

- just leave the drain wire un-used.

and marked P/N 9720 “ET SHORT HAUL” “COMM”.

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FIGURE 6 - EXTERNAL WIRING DETAIL AT THE

PRO - SH WEATHER STATION

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WEATHER STATION

COMMUNICATION WIRING

TELEPHONE CONNECTED - USING TELEPHONE COMPANY LINES:

(MODEL PRO-PH - Only)

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.

connected to the BLACK (“RING”) wire of the telephone patch cable (P/N 9661). Splices shall be made using 3-M DBY Direct Burial connectors. The splices for the phone line shall be made in the valve box, where the power wiring splices are made and where the MGP-1

The “TIP” line of the telephone cable shall be connected to the WHITE (“TIP”) wire of a 20’telephone patch cable, furnished as part of the weather

grounding plate assembly with an MSP1 surge arrestor mounted in it, is attached to one rod of a 3-rod grounding grid. Refer to FIGURE 7 below.

station, marked P/N 9661 - 2 conductor cable with WHITE (“TIP”) and BLACK (“RING”) pair of wires. The “RING” line of the telephone cable shall be

This telephone patch cable (P/N 9661) shall be routed through the 1 ½” diameter long sweep elbow to the base of the weather station.

6.0 TOWER ASSEMBLY AND INSTALLATION:

INSTALLATION

Take the 12 foot 10 AWG Ground

SUPPLIED COMPONENTS

Cable, furnished as part of the weather station and cut a 9” piece from on end of

(1) Upper Tower Section

(Tapered)

(2) Lower Tower Section w/Base

(6) ½” Washers

(1) 12 foot 10 AWG Ground

it. (This 9” piece will be used later). Attach one end of the ground wire to the ground rod, of the 3-rod grounding grid, that is located in the valve box using a brass clamp. Refer to FIGURE 6 or 7.

Cable

(1) Tower Plastic Cap

Feed this ground wire through the 1 ½” long sweep elbow up to the base of the weather station.

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Remove the three (3) “top” nuts and flat washers from the anchor bolts at the weather station template. Next remove the metal template - slipping it up over the cables that are extending from the 1 ½’ long sweep elbow. Be careful NOT to damage the cables or the connectors on the cables.

Take the lower section (with the base attached) of the weather station tower and feed, from the base end, the power cable (P/N 9922) up through this section. Also feed, from the base end, the short haul communication cable (P/N 9720 for the Model JR-SH weather station) or the telephone communication patch cable (P/N 9661 - for the Model JR-PH weather station, up through this section of the tower. Finally feed the ground wire up through the lower section of the tower.

Lay this Lower Section of the tower, on the ground, next to the concrete base, with the cables extending out the top of the tower section.

Take the Upper Section of the tower (the tapered section) and position it above the lower section on the ground. Feed the cables, coming from the lower section, up through the upper section of the tower. Secure the cables at the top of the upper section with tape, so that they cannot pull back down into the tower as you assemble the two tower sections.

Now assemble the upper tower section to lower tower section, being careful NOT to damage the cables as you do so.

IMPORTANT ! Be sure that you have everything in proper order BEFORE you assemble the two tower sections together -because once assembled they cannot be taken apart.

Place one of the flat washers on top of the two (2) nuts on each of the anchor bolts. Raise the tower and position the base on the three (3) anchor bolts that have been embedded in the poured concrete base. Be careful NOT to damage the cables in doing so. Next install a flat washer and a nut on each of the bolts and hand tighten the nuts just enough to hold the tower in position.

Next check the level of the tower by placing a level on the north and east sides of the lower tower base. Adjust the topmost nut of the two (2) lower nuts (leveling nuts) on each bolt, as necessary to level the base. When level is established, lock the leveling nut in place by tightening the lowest nut against it. Tighten the three top nuts with a wrench to secure the tower to the base. The tower should now be ready for the final assembly of the Enclosure, Sensors and Lightning Rod, etc.

REFER TO NEXT PAGE FOR FIGURE 7

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FIGURE 7 - EXTERNAL WIRING DETAIL AT THE

PRO - PH WEATHER STATION

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7.0 INSTRUMENTATION ENCLOSURE INSTALLATION:

GENERAL:

The Model PRO weather station datalogger, power supply, sensor connection panel, communications devices and data retrieval peripherals are mounted in the ET Enclosure with the sensors themselves mounted on a crossarm, which mounts to the top of the Enclosure.

MOUNTING

ET ENCLOSURE TO THE

TOWER

Mount the Enclosure to the top of the weather station tower, by sliding the

enclosure brackets down the tower, from the top of the tower.

Position the Enclosure so that the top of the enclosure is even with the top of the tower and on the north side of the tower (for northern hemisphere). Tighten the bolts, on the clamps, to secure the enclosure to the tower. DO NOT overtighten the bolts since doing so may damage the tower or the enclosure.

Refer to FIGURE 8 below

FIGURE 8 - MOUNTING ENCLOSURE ON TOWER

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INSTALLATION OF

LIGHTNING ROD

Refer to FIGURE 8 above:

Carefully mount the lightning rod bracket, furnished with the weather station, to the top of the weather station tower. Locate it above the Enclosure top bracket and near the top of the tower. Clearance between the clamp and the Enclosure is minimal. Care should be taken not to scratch the enclosure or sensor assembly. Insert the lightning rod into the bracket, with approximately ½” to 1” of the rod extending below the bracket, and tighten the set screw to secure the rod in the bracket.

Take the ground wire, that has been fed up the weather station tower, strip the insulation from the end and curl the end so as to be able to connect the wire under the head of one of the bolts on the lightning rod bracket. Be sure that you wrap this wire completely around the bolt and that you get a good contact with the bolt and bracket. Tighten the bolt securely so that you have a good tight connection. This connection is EXTREMELY important to give maximum protection to the weather station against damage from lightning surges. This connection should be INSPECTED on a regular basis to

assure it remains tight and making good contact.

Take the 9” piece of ground wire, that you previously cut off the ground wire, and strip the insulation from each end of it. Insert one end of this wire into the brass grounding lug, located at the top of the Enclosure on the back panel. Tighten the set screw to secure the wire in the clamp. Curl the other end so as to be able to place it around the other bolt of the lightning rod bracket. Be sure that you wrap this wire completely around the bolt and that you get a good contact with the bolt and bracket. Tighten the bolt securely so that you have a good tight connection. This connection is EXTREMELY important to give maximum protection to the weather station against damage from lightning surges. This connection should be INSPECTED on a regular basis to assure it remains tight and making good contact.

POWER SUPPLY

RECHARGEABLE BATTERY

The weather station is furnished as standard with a Sealed Rechargeable Battery and including the mounting bracket. This battery is to be installed on the back panel of the Enclosure.

Refer to FIGURE 9 below.

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FIGURE 9 - 16VAC CONNECTION AND RECHARAGEABLE BATTERY

INSTALLATION

Loosen the four (4) screws located on the back panel of the Enclosure. Slip

to properly secure the battery to the back panel of the ET Enclosure.

the end of the battery bracket, that has the two (2) keyhole slots in it over the upper two (2) screws. Line up the battery bracket slotted holes, in the other end of the bracket, with the two (2) lower screws. Now push “down” on the

Plug the connector on the wire leads of the battery to the “top” battery connection - marked “LA” - which is located on the Enclosure panel assembly just above the battery location.

battery - seating the bracket in place with the screws. Tighten all four screws

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AC EXTERNAL

POWER WIRING

the cap on the Heyco fitting to seal around the cable. The wires can be

Refer to FIGURE 8 & 9 above:

attached to these connectors by “depressing” the lever on the connector for each wire and while doing so, insert

The 16VAC power wiring, that you have fed up through the weather station tower, shall be routed down the back side of the Enclosure and into the Enclosure through the Heyco fitting, marked “power”. Unscrew the cap of the Heyco fitting (on the back side of the enclosure) and push the plug out of the fitting. This plug can be discarded as it will not be used. Feed the power wires through the Heyco fitting and connect them to the the connectors of the

the stripped end of the wire. Upon release of the lever, the wire will be secured in the connector. CAUTION ! Be careful in depressing the lever so as not to break the lever. The polarity of the 16VAC power wiring does not matter, therefore it makes no difference which wire goes into which connector. At this point you can now connect the power to the transformer or wait until you have connected the sensors, which ever you prefer.

Enclosure, marked “CHG”. Tighten

It will be noted that on the panel assembly there are connectors marked “ALK”. These connectors are NOT to be USED. The use of an Alkaline battery is NOT an option.

CONTINUE ON THE NEXT PAGE

POWER SUPPLY

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OPTION

SOLAR PANEL

Refer to FIGURE 10 below:

Model Numbers shall be as; PRO-SH-SP or PRO-PH-SP. (SP designating the Solar Panel Option).

An option is for use of a Solar Panel, for the power supply, rather than the standard 120VAC/16VAC transformer. Mount the solar panel to the weather station tower using the mounting brackets furnished as part of the solar panel assembly. Mount the solar panel to the tower so it faces south (northern hemisphere). Position the solar panel 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 sun light exposure over the course of the year. It is also necessary that the solar panel have the proper “tilt”. Suggested “tilt” angles (reference to the horizontal plane) are listed below.

Site Latitude Tilt Angle

0 to 10 degrees 10 degrees

11 to 20 deg. Latitude +5

degrees

21 to 45 deg. Latitude +10

degrees

46 to 65 deg. Latitude +15

degrees

65 deg. 80 degrees

After determining the “tilt” angle, loosen the two (2) bolts that attach the solar panel to the mounting bracket. Adjust the angle of the solar panel, then tighten the bolts to secure it in the proper position. Secure the lead wire, coming from the solar panel, to the Tower mast using wire ties.

The solar panel cable shall be routed up and through the Heyco fitting on the back panel of the Enclosure and marked “power”. Unscrew the cap of the Heyco fitting (on the back side of the enclosure) and push the plug out of the fitting. This plug can be discarded as it will not be used. Now feed the solar panel power cable through the Heyco fitting and connect it to the connectors of the Enclosure, marked “CHG”. The wires can be attached to these connectors by “depressing” the lever on the connector for eaach wire and while doing so, insert the stripped end of the wire. Upon release of the lever,, the wire will be secured in the connector. CAUTION ! Be careful in depressing the lever so as not to break the lever. The polarity of the wires does not matter, therefore it makes no difference which wire goes into which connector. The solar panel installation should now be completed.

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FIGURE 10 - SOLAR PANEL INSTALLATION DETAIL

8.0 INSTALLATION OF INSTRUMENTATION

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GENERAL:

The Model PRO weather station comes with the some of the sensing instruments, and sensor wiring to datalogger completely assembled as a unit on a cross-arm. The Solar Radiation Pyranometer - along with the leveling device are mounted on a bracket, which in turn is mounted on the cross-arm of the Enclosure. On this end of the cross-arm the “Tipping Rain Bucket” is also mounted at the factory. On the opposite end of the cross-arm is attached the mounting bracket, which has been factory installed, for the Wind speed and Wind direction sensing instruments. The Temperature and Relative Humidity sensors are on the end of their cable and only need installing into the radiation shield. The cables for each of these sensors are mounted in the cross-arm and terminated at the proper location of each sensor. The cables only need to be routed and plugged into the proper connectors on the back of the back panel of the ET Enclosure.

SUPPLIED COMPONENTS

(1) Sensor Cross-Arm (1) Met One 034A Wind Sensor (1) 034A Mounting Shaft (1) Radiation Shield

INSTALLATION OF CROSS-ARM TO ET ENCLOSURE:

Refer to FIGURE 11 below:

Remove the four (4) Phillips head screws from the bottom center of the cross-arm. With the Enclosure cover removed, place the cross-arm on top of the Enclosure. The cross-arm needs to be oriented along a due east to due west axis. If necessary adjust the Enclosure on the tower to properly orient the crossarm. Also be sure that the opening in the middle and one side of the cross-arm, where the sensor cables exit, is to the back of the Enclosure so that the cables can enter the top of the cover that fits over the cable connectors on the back of the Enclosure. Line up the four threaded holes on the under side of the cross-arm (where you just removed the screws) with the four holes in the top of the Enclosure. Attach the cross-arm to the Enclosure by inserting the four (4) screws, from in side the enclosure up through the top and into the threaded holes of the cross-arm. Tighten the screws securely.

REFER TO NEXT PAGE FOR FIGURE 11

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FIGURE 11 - CROSS-ARM MOUNTING

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INSTALLATION OF 034A WIND SENSOR:

Refer to FIGURE 12 below:

With the Sensor Cross-Arm securely installed to the Enclosure you are ready to install the 034A Wind Sensor instrument. The wind vane is oriented after the datalogger has been programmed and the location of True North has been determined. Orientation is most easily done with two people, one to aim and adjust the sensor, while the other observes the wind direction displayed by CR10KD Keyboard Display or a laptop PC computer.

Remove the aligning screw from the base of the 034A wind sensor unit. Place the 034A wind sensor into the mounting shaft, that is clamped to the end of the sensor cross-arm by means of a U-Bolt clamp.

(The short, black mounting shaft, included with the 034A wind sensor will NOT be used).

Next loosen the set screw in the top of the 034A wind sensor (the seet screw opposite the one securing the wind direction point). Place the end of the wind vane into the hole. Properly orient the vane to be in a true vertical position and secure it by tightening the set screw.

Attach the wind sensor cable connector to the connector on the 034A wind sensor.

Without allowing the mounting shaft for the 034A wind sensor to “slip down” (it may be a good idea to mark the position of the U-Bolt on the shaft so that you can correctly position it should is “slip”) slightly loosen the nuts of the “U-Bolt” clamp of the mounting shaft - just enough so you can rotate the mounting shaft but not allow the shaft to “slip down”.

Establish a reference point on the horizon for True North.

Secure the 034A wind sensor in the mounting shaft, by aligning the threaded hole in the wind sensor with the hole in the side of the mounting shaft, and reinstalling the aligning screw.

Sighting down the instrument center line, aim the counter weight at True North. Display input location #8 for wind direction, using the *6 Mode of the datalogger.

While holding the wind vane position, slowly rotate the sensor base/mounting shaft until the datalogger indicates 0 degrees. Securely tighten the clamp nuts.

REFER TO NEXT PAGE FOR FIGURE 12

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FIGURE 12 - WIND SENSOR INSTALLATION DETAIL

INSTALLATION OF RELATIVE HUMIDITY / TEMPERATURE SENSOR AND RADIATION SHIELD:

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Refer to FIGURE 13 below:

On the bottom of the Cross-Arm, on the end where the wind sensor has been installed, remove the two screws for the Relative Humidity/Temperature sensor Radiation Shield.

Un-tape the RH/Temperature sensor from the bottom of the Cross-Arm.

Remove the “yellow” protective plastic cap from the end of the sensor, by slipping it off the end of the sensor. This can be discarded as it will not be used.

Insert the RH/Temperature sensor into the end of the shaft of the Radiation Shield. Insert it to a depth where it is securely seated. Now secure the Radiation Shield to the bottom of the sensor Cross-Arm with the two (2) screws you have previously removed.

FIGURE 13 - TEMPERATURE/RH SENSOR INSTALLATION DETAIL

Refer to FIGURE 14 below:

INSTALLATION OF SOLAR RADIATION PYRANOMETER:

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The Solar Radiation Pyranometer, (with the leveling device) is mounted, at the factory, on a mounting bracket at the opposite end of the cross-arm near the Tipping Rain Bucket gage. By using

the three (3) leveling screws - level the Pyranometer. After leveling - remove the “RED” protective cap from the Pyranometer.

FIGURE 14 - SOLAR RADIATION SENSOR INSTALLATION DETAIL

SENSOR CABLE CONNECTIONS:

Refer to FIGURES 12 & 15:

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The Sensor Cables exit from the center back of the Cross-Arm. The cables need to be routed down the back of the Enclosure and plugged into the connectors on the back panel of the Enclosure as follows:

Solar Radiation #10105 cable -

connect to #3 connector [labeled “SOLAR RADIATION”]

Rain #10094 cable - connect to #5 connector [labeled “RAIN

(PRECIP)”]

Temp/RH #10090 cable - connect to #1 connector [labeled “TEMP/RH”]

WD/WS (Wind Direction/Wind Speed) #10408 cable - connect to #2 connector [labeled “WS/WD”]

Making sure that all cables are properly enclosed behind the cover - replace the cable cover. Be sure that you do not pinch any of the cables between the cover and the back panel of the Enclosure.

FIGURE 15 - SENSOR CABLE CONNECTIONS

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CONFIGURE SENSOR SWITCH SETTINGS:

modem and to the right of the the “Heat Sink” located to the right of the battery

Refer to FIGURE 16 below:

connectors. These switches or pots need to be set as indicated in FIGURE

The Sensor Switches are located on the

16 below.

ET Enclosure panel just below the

FIGURE 16 - SENSOR SWITCH SETTINGS

UPGRADING A “JR” MODEL WEATHER STATION TO A “PRO” MODEL:

Refer to FIGURE 17 below:

By means of the “UPGRADE KIT” a Model “JR” Rain Bird weather station can be upgraded to a Model “PRO” weather station.

On the top of the Enclosure of the existing model “JR” weather station remove the three (3) leveling screws and springs from the mounting bracket for the Temperature/Relative Humidity and Solar Radiation sensors.

Remove the white Temperature/Relative Humidity sensor from the bracket by removing the three screws under the bracket and securing it to the bracket. This sensor will NOT be used with the new upgrade kit.

Reverse the orientation of the mounting bracket and place it on the upgrade

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cross-arm, on the support brackets on the cross-arm near the tipping bucket rain gage. Thread the three (3) leveling screws into the threaded holes in the support brackets. Be sure that the spring, for each screw, is between the mounting bracket and the support bracket. Turn each screw two (2) or three (3) turns into the threaded holes.

Install the sensor cross-arm to the top of the Enclosure as previously described. All other sensors, including the 034A Wind Sensor, the Radiation Shield, cables, etc. shall be installed as previously described in this section.

All cables shall be connected to the connectors on the back panel of the Enclosure - as previously described and as shown in FIGURE 15.

FIGURE 17 - UPGRADING A “JR” TO A “PRO” WEATHER STATION

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SENSOR VERIFICATION AND CLOCK SET:

Check the measurements of all sensors after the datalogger is programmed. Display measurements using the *6 Mode with the ML10KD datalogger support software.

Input Loc. Parameter Normal Range

1 Battery (Volt) 12.9 to 14.2 Volts

2 Air Temp. –40 to +50 C degrees

3 Humidity 0% to 100%

4 Wind Run 0 to 800 Kms/day

5 Solar (Langleys) 0 to 0.07 cal/cm 6 Rain Fall 0 to 0.02 inches

7 Wind Direction 0 to 359 degrees

8 Air Temp. -40 to +122 degrees F

9 Humidity 0% to 100%

10 Wind Speed 0 to 110 mph

11 Solar (Langleys) 0 to 0.07 Cal/cm

12 Rain Fall 0 to 0.02 inches

2

SHORT HAUL MODEM

INSTALLATION

Refer to FIGURE 18 below: (PRO-SH)

The Short Haul Modem, at the weather station, is normally installed at the factory in the ET Enclosure. The Short Haul Modems enable communication between the datalogger and the central computer over two (2) twisted pairs of wires. The maximum distance between modems is determined by the baud rate and the wire gauge. At 9600 baud, the approximate range is 4.0 miles. DCE/ DTE switches on the modems must be set to DCE.

INSTALLATION:

For installation of the Short Haul RAD Modem inside the Enclosure, the following components are provided in the Short Haul modem kit:

SC932C Interface w/ribbon cable

RAD Modem

RAD/SC932C Mounting Bracket

Velcro Mounting Strap w/Buckle

Mounting Screws

12 inch 4-wire Patch Cable

13 Encl. Humidity 10 to 30% when sealed for several

hours

14 Encl. Internal Close to Air TemperatureTemperature

Partially install three (3) of the furnished screws in the holes on the left side of the Enclosure housing for the datalogger.

Hold the Modem mounting bracket in the position it will be in the Enclosure.

15 Program Signature Depends on

Program Version

Thread the Velcro mounting strap through the two outer slots of the lower set of slots in the modem mounting bracket. Thread from the top down on the far left slot first. The side of the strap with Velcro should be facing

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“down” toward the datalogger housing. Then carry the strap across the back of the bracket and thread it to the front of the bracket through the far right slot of the lower set of slots.

Slide the bracket flange, with the three screw slots, under the heads of the three (3) mounting screws you have partially installed in the holes on the left side of the datalogger housing. With the bracket fully seated tighten the three (3) screws to secure the mounting bracket t o the datalogger housing.

Connect the SC932C Interface to the RAD Modem. Position this assembly on the mounting bracket with the SC932C Interface pointing “down”. Strap the SC932C Interface unit securely

to the mounting bracket, using the Velcro strap.

Connect the SC932C 9-pin port to the internal Enclosure 9-pin port (located just below the Phone Modem port) using the blue ribbon cable provided.

Wire the RAD modem to the Enclosure with the 12 inch 4-wire patch cord provided. Black (-XMT) wire to -XMT connections at the RAD modem and at the connector on the Enclosure. The RED (+XMT) wire to the +XMT connections, the White (-RCV) wire to the -RCV connections and the Green (+RCV) wire to the +RCV connections at the RAD modem and at the terminal blocks: RED to +RCV, Black to -RCV, Green to +XMT, White to -XMT.

FIGURE 18 - SH MODEM INSTALLATION IN ET ENCLOSURE

INSTALLATION

TELEPHONE MODEM

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Weather Station - Model “PRO”

Attach the phone modem to the

Refer to FIGURE 19 below: (PRO-PH)

mounting bracket, using the four screws and nuts.

The Telephone Modem, at the weather station, is normally installed at the factory in the Enclosure. The telephone modems enable communication between the datalogger and a Hayes compatible modem at the central computer over a dedicated telephone line. Phone line surge protection is built into the Enclosure.

INSTALLATION

For installation of the phone modem inside the Enclosure, the following components are provided in the modem kit:

COM200 or COM 300 Modem 12 inch RJ-11 Patch Cord Modem Mounting Bracket Mounting Screws 12 inch #14 AWG Ground Wire 4 Screws and Nuts

Taking the phone modem and bracket assembly - install the two keyhole slots in the bracket over the top two (2) screws that you have previously installed in the datalogger housing. Be sure the open slot in the bracket is in line with the lower screw. Seat the modem properly and tighten the screws to secure the modem to the datalogger. Connect the 9-pin connector of the Blue Ribbon Cable to the phone modem 9-pin port. Connect the other end of the ribbon cable to the 9-pin port (marked “CS I/O”) on the Enclosure. Secure it with the two screws on the connector.

Connect the modem RJ-11 Patch Cord to the RJ-11 jack on the phone modem (located to the right of the 9-pin port). Connect the other end of the RJ-11 Patch Cord to the RJ-11 jack on the Enclosure, marked “phone modem”.

Partially install three (3) of the furnished screws in the holes on the left side of the Enclosure housing for the datalogger.

Connect one end of the 12 inch #14 AWG ground wire to the terminal, marked “GND” and located on the right side of the phone modem. Connect the other end of this ground wire to the connector on the Enclosure that is marked “GND”.

The installation of the phone modem is now completed.

REFER TO NEXT PAGE FOR FIGURE 19

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FIGURE 19 - TELEPHONE MODEM INSTALLATION IN ET ENCLOSURE

9.0 SEALING & DESICCATING

THE ENCLOSURE:

The Enclosure is supplied with a desiccant pack. The desiccant maintains a low humidity in the enclosure to minimize the chance of condensation on the instrumentation Desiccant should be changed when the internal Enclosure humidity sensor measures 30% or higher. Install the desiccant as shown in FIGURE 21 below. Keep unused desiccant tightly sealed inan airtight container.

Take the desiccant pack out of its sealed plastic bag. Place it under the dessicant strap just before leaving the station.

Be sure to close the enclosure hasp securely. A padlock may be used on the

FIGURE 20 - DESSICANT PACK

INSTALLATION

latch for extra security.

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Weather Station - Model “PRO”

10.0 INSTALLATION AT CENTRAL COMPUTER

(XMT+) wire to the upper left connector

MODEL PRO - SH ~ Direct Connected:

in the Surge Arrestor Box. Connect the WHITE (XMT-) wire to the upper right connector, connect the RED (RCV+)

Refer to FIGURE 22 below:

wire to the lower right connector and the BLACK (RCV-) wire to the lower left

SUPPLIED COMPONENTS

connector of the surge arrestor box.

(1) SMR-5A RAD Modem (1) 5 Foot 4-Wire Patch Cord (1) 25 Foot #10 AWG Ground Wire (1) Surge Protection Box

INSTALLATION

Attach the 5 foot 4-wire patch cord to the SRM-5A RAD modem unit, which is furnished as part of the weather station. Connect the GREEN (XMT+) wire to the “XMT+” terminal of the RAD modem. Connect the WHITE (XMT-) wire to the “XMT-“ terminal, the RED (RCV+) wire to the “RCV+” terminal and the BLACK (RCV-) wire to the “RCV-“ terminal.

Connect the SRM-5A RAD modem directly to the serial port of the computer or use a 9-pin to 25-pin adapter if required.

Mount the Surge Arrestor Box, which is furnished as part of the weather station, in a suitable location near the computer (within less than 5 feet, as the patch cord is only 5 feet long).

Take the other end of the Patch Cord, that you have previously connected to the modem, and connect the GREEN

Just outside the building of the central computer location, install an 18” x 24” rectangular valve box with cover over one ground rod of a 3-rod grounding grid. (You may use the 3-rod grounding grid for the central Interface unit, etc. if located nearby).

Furnish and install and MGP-1 grounding plate assembly on the ground rod in the valve box. Furnish and install in the MGP-1 grounding plate assembly two (2) MSP-1 Pipe Surge Arrestors. Be sure to have the end marked “EQUIP” toward the central equipment and the “LINE” end toward the weather station. Ground both ends of each of the MSP-1 Surge Arrestors to a screw on the MGP-1 grounding plate assembly.

Using a piece of Belden #9883 direct burial cable (of sufficient length to reach from the Surge Arrestor Box to the Valve box) take the Green and Black twisted pair of wires and connect the GREEN (XMT+) wire to the upper left terminal in the Surge Arrestor Box. Connect the BLACK (XMT-) wire to the upper right terminal in the Surge Arrestor Box. Take the Red and Black twisted pair of wires and connect the RED (RCV+) wire to the lower right terminal of the Surge Arrestor Box. Connect the BLACK (RCV-) wire to the

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lower left terminal of the Surge Arrestor Box. Leave the third pair of twisted wires, consisting of a Black and White wire disconnected and for a spare pair. The copper drain wire shall also be left disconnected.

Route the Belden cable, out of the building, under ground and out to the valve box. Taking the Green and Black twisted pair of wires, connect the GREEN (XMT+) wire to the RED wire, on the end marked “EQUIP”, to one of the MSP-1 Pipe Surge Arrestor that you have installed in the MGP-1 Grounding Plate Assembly. The BLACK (XMT-) wire shall be connected to the BLACK wire, on the end marked “EQUIP”, of this MSP-1 Surge Arrestor.

Next take the Red and Black twisted pair of wires of the Belden cable and connect the RED (RCV+) wire to the RED wire, on the end marked “EQUIP”, of the second MSP-1 pipe surge arrestor. Connect the BLACK (RCV-) wire to the BLACK wire, on the end marked “EQUIP”, of this second MSP-1 pipe surge arrestor.

The third twisted pair, consisting of a Black and White wire pair, shall be left as a spare and un-connected. The copper drain wire shall also be left disconnected.

A Belden #9883 Cable, consisting of three twisted pair of wires, a copper drain wire and an aluminum shield with an outer insulation for direct burial, shall be run underground form the central

location valve box out to the weather station location. At the valve box, at the central location, take the Green and Black pair of wires and connect the GREEN (XMT+) wire to the RED wire, coming from the end marked “LINE”, of the first MSP-1 pipe surge arrestor. Connect the BLACK (XMT-) wire from this pair, to the BLACK wire, coming from the end marked “LINE”, of the first MSP-1 pipe surge arrestor.

Take the Red and Black twisted pair of wires, of the Belden cable and connect the RED (RCV+) wire from this pair, to the RED wire coming from the end marked “LINE”, of the second MSP-1 pipe surge arrestor. Connect the BLACK (RCV-) wire from this pair, to the BLACK wire coming from the end marked “LINE”, of the second MSP-1 pipe surge arrestor.

The third twisted pair, consisting of a Black and White wire pair, shall be left as a spare and un-connected. The copper drain wire shall also be left disconnected.

To the center ground terminal in the Surge Arrestor Box - connect one end of the #10 gauge bare copper ground wire. Route this wire out the bottom of the box, underground out to the valve box and connect it to the ground rod using a brass clamp. Keep this ground wire as short and as straight as possible with NO sharp bends or “kinks”.

For connections and wiring at the Weather Station, refer to Section 5.0 of this manual.

REFER TO NEXT PAGE FOR FIGURE 21

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FIGURE 21 - INSTALLATION AT CENTRAL COMPUTER FOR

DIRECT CONNECTED WEATHER STATION

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MODEL JR - PH ~ Phone Connected:

Refer to FIGURE 22 below:

SUPPLIED COMPONENTS

(1) Telephone Patch Cable (2) 25 Foot #10 Gauge Ground Wire

(1) Surge Arrestor Box

INSTALLATION

Furnish and install a Hayes Compatible 9600 baud modem. Using the ribbon cable that comes with the modem connect one end to the RS232C cable connector on the Modem. Connect the other end of this ribbon cable to the serial port of the computer. Use a 9-pin to 25-pin adapter if required.

Plug the “Plug-In” type transformer, that has been supplied with the modem, in to an 120 VAC electrical outlet.

Surge protection, for protection against surges coming in on the telephone lines, is built into the Weather Station. In addition the telephone company also furnishes surge protection on their lines. Therefore no additional surge protection is required upon installation of the Weather Station.

STANDARD INSTALLATION METHOD

Taking the telephone patch cable, connect the WHITE (“TIP”) wire, of this cable, to the “Tip” line of a piece of underground telephone cable. Connect the BLACK (“Ring”) wire, of this patch cable, to the “Ring” line of this piece of underground telephone cable.

Route this piece of direct burial telephone cable, out of the building, under ground and out to the valve box, located just outside the building. In the valve box connect the “TIP” wire (white) to the WHITE “TIP” wire of the direct burial underground telephone cable installed by the telephone company. Connect the “RING” wire (black) to the BLACK “RING” wire of the direct burial underground telephone cable installed by the telephone company.

REFER TO NEXT PAGE FOR

FIGURE 22

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FIGURE 22 - INSTALLATION AT CENTRAL COMPUTER FOR

TELEPHONE CONNECTED WEATHER STATION

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11.0 MAINTENANCE & TROUBLESHOOTING

GENERAL MAINTENANCE:

Be aware of battery voltage that

Proper maintenance of weather station components is essential to obtain accurate data. Equipment must be in

consistently decreases over time, which indicates a failure in the charging circuitry.

good operating condition, which requires a program of regular inspection

DESICCANT:

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., bearing torque), and sensor

Enclosure humidity is monitored in the Enclosure. Change the desiccant packs when the enclosure RH exceeds 35%. The RH chip should be changed every 5 to 8 years.

component replacement, generally requires a skilled technician, or that the

SENSOR MAINTENANCE:

instrument be sent to Campbell Scientific for repair or updating. Contact your local Rain Bird distributor for instructions.

Sen0sor maintenance should be performed at regular intervals, depending on the desired accuracy and the conditions of use. A suggested

A station log should be maintained for

maintenance schedule is outlined below.

each weather station that includes serial numbers, dates that the site was visited

1 Week -

and maintenance that was performed.

• Visually inspect the station and all

INSTRUMENTATION MAINTENANCE:

sensors. Look for any damage and debris that may disturb sensor

readings. The instrumentation requires a minimum of routine maintenance. A few preventative maintenance steps will optimize battery life and decrease the

• Check the pyranometer for level and

contamination. Gently clean with a

soft bristle brush, if needed. chances of datalogger failure.

• Check and Clean the Tipping Bucket

BATTERIES:

Rain Gage, especially the bucket

screen and the small funnel outlet.

RECHARGEABLE

To check accuracy of the rain gage -

Rechargeable power supplies should be connected to an AC transformer or unregulated solar panel at all times.

16 ounces of fluid is equal to 1” of

rainfall. Fluid must be poured into

the gage VERY SLOWL Y to get an

accurate bucket tipping count.

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1 Month -

• Check the temperature/relative

humidity sensor for contamination.

6 Months -

• Clean the temperature/relative

humidity sensor.

• Check battery by disconnecting the

AC Power and allow it to stabilize for at least 2 hours. Then check the voltage. Reconnect battery to AC Power.

1 Year -

• Replace the RH chip if necessary.

4 - 5 Years -

• Replace sensor cables as requires.

General Maintenance

• An occasional cleaning of the glass

on the solar panel will improve its

efficiency.

• Check sensor leads and cables for

cracking, deterioration, proper

routing and strain relief.

• Check the tower for structural

damage, proper alignment and for

level/plumb.

2 Years -

• Calibrate the Pyranometer (some

suggest yearly).

• Replace RH chip in Air Temp/RH

Sensor.

• Calibrate the Tipping Bucket Rain

Gage. To check accuracy of the rain gage - 16 ounces of fluid is equal to 1” of rainfall. Fluid must be poured into the gage VERY SLOWLY to get an accurate bucket tipping count.

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SENSOR MAINTENANCE

RAIN GAUGE

Inspect and clean every two to three months - removing leaves, debris, etc. In extreme environmental conditions it may be necessary to do this on a MONTHLY basis.

the large center drain hole. Adjust both screws the same number of turns or partial turns. Rotation clockwise increases the number of tips per 16 ounces of water, counter clockwise rotation decreases the number of tips per 16 ounces of water. One half turn of both screws causes a 2% to 3% change.

• Check and Re-Level the Rain Bucket

lid.

• Check that the tipping mechanism

moves freely and that it registers

0.01 inches per tip.

• Check and Re-Level the Rain

Bucket, if necessary.

• Calibrate the Rain Gage every 2

years.

Calibrating the Rain Bucket:

• Secure a metal can that will hold at

least one quart of water.

• Punch a VERY SMALL HOLE in

the bottom of the can.

• Place the can in the top of the funnel,

of the Rain Bucket, and pour 16 fluid ounces (1 pint) of water into the can.

• If it takes LESS than 45 minutes for

this water to run out, the hole in the can is TOO LARGE.

• One hundred (100) tips plus or minus

three tips should occur and register from 0.97 inches to 1.03 inches. (0.01 inches per each tip).

Adjusting screws are located on the bottom of the Rain Bucket, adjacent to

Factory Calibration is available through your Rain Bird Distributor.

Suggestions:

Devices for dripping water are available through a chemistry equipment supply house.

In order to see the 100 tips, configure a FAKE weather station within the weather software, to use for this testing. Drip the water and then do an upload using the new test configuration to see the number of tips (0.01 inches = 1 tip).

CAUTION ! Be sure to disable any Automatic Uploads, since the 100 tips

will contaminate the every day weather data.

After the calibration is complete, reset the datalogger by removing the power and the battery connections in the Enclosure. Contact Campbell Scientific for further instructions. You will have to reset the time of day and year in the datalogger by up loading one day of data (#6 from the Weather Main Menu). The 7 days of data that are stored in the datalogger will be lost when you disconnect the power, so be sure to have done an upload before you begin the calibration process.

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Model “PRO”- Weather Station

Weather Station - Model “PRO”

areas, where their life may only be 1

SOLAR SENSOR

year.

• Inspect and clean the Solar Sensor

(Pyranometer) every two (2) to three (3)months. It is best cleaned with a blast of clean, dry air or with a soft bristle, camel hair brush. Be careful

NOT to scratch the surface of the sensor. DO NOT use Windex, soap or any other cleaning agent as it may scratch or more likely leave a film on the surface, which will affect its accuracy.

• In EXTREME environmental

conditions it may be necessary to clean the Solar Radiation Sensor (Pyranometer) on a monthly basis.

• Be sure the DRAIN hole in the side

of the sensor housing near the top, is OPEN and free of debris.

• Re-Calibration of the Solar Radiation

Sensor (Pyranometer) should be done every two (2) years. Return the sensor, through your Rain Bird Distributor, for calibration.

WIND SENSOR

• The bearings can only be replaced by

the factory and therefore need to be

returned to the factory through your

local Rain Bird Distributor.

Checking the bearings of the 034A Wind Sensor.

• Remove the Wind Sensor from the

Weather Station cross-arm, by

removing the set screw that is

securing the sensor in the mounting

shaft and raising the sensor up and

out of the mounting shaft.

• Hold the Wind Sensor in a horizontal

position (with one of the wind speed

cups “down” toward the ground).

• On one of the cups hang an ordinary

paper clip (0.5 gm weight) on the

outer edge of one of the cups.

• Position this cup in the “up” position

and release. The cup should rotate

downward. Failure to rotate

indicates the bearings need

replacement.

RELATIVE HUMIDITY SENSOR

• Inspect bearings and operation of the

Wind Sensor (wind speed and wind direction) on a regular basis, at least once a year. They should move freely and react to a wind speed of 2

• The life of the RH chip is dependent

upon air quality in your area. As a

General Rule the RH chip should be

replaced EVERY 2 YEARS, if

necessary.

to 3 mph.

• In extreme environmental conditions,

The bearings have a life expectancy of 3 to 5 years, except in very high wind

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the RH chip may need to be replaced

every year.

Nov., 2001

Weather Station - Model “PRO”

• The best time to change the chip is at

the beginning of the most critical time for watering (spring and fall in the desert areas).

• Clean the screen, on the tip of the

RH chip enclosure, every six (6) months more often, if required. If the screen gets dirty quickly, this will reflect how often the chip will need to be replaced.

TEMPERATURE SENSOR

• Inspect and clean, at least every 2 to

3 months and more often in extreme environmental conditions.

CAUTION

Be careful of the thermister, as it is very delicate.

• Carefully clean insects and debris

from the temperature probe.

• The temperature probe can NOT be

calibrated, so if the readings are poor the complete probe must be replaced.

• After several years the

temperature/RH sensor may become corroded and should be replaced.

SEAL OF ET ENCLOSURE

The seal on the panel assembly of the Enclosure forms the seal between the Enclosure cover and the Enclosure back panel.

• This seal should be inspected on a

regular basis, looking for cracks,

hardening of the foam rubber and/or

loosening from the back panel

assembly.

• Any time the Enclosure is opened,

upon closing it the desiccant pack

should be replaced with a new

desiccant pack.

• At least once a year the desiccant

pack should be replaced with a new

pack.

• The Enclosure internal moisture

should be monitored. The desiccant

pack maintains a low humidity in the

enclosure an minimizes the chance of

condensation on the datalogger and

other electronic components.

• The desiccant pack should be

changed when the internal Enclosure

humidity sensor measures 35% or

higher.

NOTE ! Water will affect the temperature readings, so be sure no direct water is hitting the weather station from sprinklers in the area.

Nov., 2001 Page 46

Cozz GT27145B

• If the moisture level gets too high the

Enclosure should be opened and

dried out. The desiccant pack needs

to be replace with a new pack.

Model “PRO”- Weather Station

Weather Station - Model “PRO”

• All parts should be dried with a

clean, dry cloth and components inspected for corrosion.

• When replacing the cover on the

Enclosure, place the cover top into the top of the Enclosure and be sure the cover is properly engaging in the tabs at the top of the Enclosure. Gently close the cover and secure it with the latch at the bottom. Be sure the latch hasp is securely latched, as keeping out moisture, is dependent upon a tight seal between the Enclosure back panel and the cover, provided by the molded rubber seal on the Enclosure back panel.

BATTERY CHECK

• The 16 VAC power or the solar

panel power should be connected to

the weather station at all other times.

SENSOR TESTING

At least once a year, or whenever sensor failure is suspected, the sensors listed below should be checked with a volt/ohm meter for ohm resistance.

• Wind Sensor - Wind Speed

(Anemometer) sensor

• Wind Sensor - Wind Direction Vane

Sensor.

• Rain Gage Tipping Bucket

• At least TWICE (2 times) a year the

AC power wires to the charger should be disconnected to allow the station to operate off the batteries without the charger in operation.

• Check the battery under these

conditions to get an accurate actual battery voltage level.

• Allow 2 hours, after the battery AC

recharge power has been disconnected, for the battery to dissipate high voltage level before checking the voltage.

CAUTION ! Be sure to RE-CONNECT the battery charger and/or power wires to the weather station after checking the battery voltage.

• Solar Radiation Sensor -

Pyranometer.

All sensors that are to be checked, EXCEPT the Rain Gage, should have a measurable resistance. INFINITE resistance indicates an OPEN circuit. Any sensor with an open circuit needs to be repaired or replaced.

WIND SPEED SENSOR

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Refer to schematic wiring diagram located in the Appendix - FIGURE 29

• Measure the resistance from P1 to G

(pins 3 to 5) of the Wind Speed Sensor. Slowly turn the wind speed cup. The resistance should vary from infinite to less than 1 OHM as the reed switch closes in the anemometer.

WIND DIRECTION

Refer to schematic wiring diagram located in the Appendix - FIGURE 29

• The Wind Direction sensor varies in

its resistance as the vane turns. With the OHM meter connected to E2 and 2H (pins #1 & #2) the resistance should vary from 11K OHMS to 21K OHMS.

• If infinite resistance is measured,

then the wiper in the potentiometer is most likely damaged and the sensor needs to be repaired.

• With the OHM meter connected to

2H & AG (pins #2 & #4) the resistance should vary from 1K to 11K OHMS with change in wind direction. If infinite resistance is measured then the potentiometer is bad and should be replaced.

located in the Appendix - FIGURE 30

• The Solar Radiation Sensor

(Pyranometer) should measure

between 40 OHMS and 90.2 OHMS,

when checked with an Ohm meter

between 3H & 3L (pins #1 & #2).

• Set meter for lowest DC millivolts (a

very sensitive meter is required) and

measure from 3H to 3L (pins #1 &

#2). The small voltage should vary

with variation in light intensity.

Place your hand over the sensor -

should read 0 VDC.

TIPPING BUCKET RAIN GAGE

Refer to schematic wiring diagram located in the Appendix - FIGURE 31

• The Rain Gage has a reed switch that

closes as the tipping bucket

mechanism “tips”. Connect the

OHM meter across P2 & G (pins #3

& #5) and should read infinite

OHMS. When bucket mechanism is

“tipped” - should then get less than 1

OHM.

• If the bucket tipping mechanism is

working correctly you should read

+5 Volts DC with the meter set at DC

volts and connected across the reed switch, while sensor is plugged into the Weather Station. When the bucket is “tipped” the reed switch closes and you should have 0VDC. There is

SOLAR RADIATION SENSOR

PYRANOMETER

continuous low voltage going through

this reed switch, except as it “tips” at which time the +5 Volts DC is

Refer to schematic wiring diagram -

Nov., 2001 Page 48

Cozz GT27145B

shorted, and thus there is a possibility

Model “PRO”- Weather Station

Weather Station - Model “PRO”

of corrosion build up on the switch over time.

• The reed switch is easily replaced

and the parts are available from your local Rain Bird Distributor.

TEMPERATURE AND

RELATIVE HUMIDITY SENSOR

Refer to schematic wiring diagram located in the Appendix - FIGURE 32

• Set the meter to DC volts and check

across pins #4 & #6 for 12VDC.

DO NOT connect an OHM meter across the RH chip or damage may occur to the RH chip. If you are experiencing problems with the temperature and relative humidity probe - determine the following:

• Are both the temperature and

humidity readings “bad” ?

• Is just the temperature reading

“bad”?

• Is the RH reading “bad” ?

replacement, are available from your

local Rain Bird Distributor.

AIR TEMPERATURE PROBE ( ON REDUCED SET STATION

ONLY )

Refer to schematic wiring diagram located in the Appendix - FIGURE 33

• Set meter to OHMs and measure

from E1 to 1H (pins #3 to #1) should

read a minimum of 249K OHMS.

Colder temperatures result in higher

resistances.

• With meter on OHMS measure from

1H to AG (pins #1 to #5). Should

have a fixed reading of 1K OHMS

resistance.

• With meter on OHMS measure from

E1 to 1L (pins #3 to #2) should read

a minimum of 249K OHMS.

Colder temperatures result in higher

resistances.

• With meter on OHMS measure from

1L to AG (pins #2 to #5). Should

have a fixed reading of 1K OHMS

resistance.

TROUBLESHOOTING:

• If just the RH readings are “bad” -

then the RH chip most likely needs to be replaced. New RH chips, for

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The following information is for troubleshooting the weather station only.

Nov., 2001

Weather Station - Model “PRO”

ISOLATING THE PROBLEM

The recommended approach to troubleshooting the weather station is to divide the system into three (3) sections, the weather station itself, the communication path or network and the device for communication (computer hookup). Isolate these sections and test each one to find the problem.

CHECKING THE WEATHER STATION:

Check the weather station by using the ML-10-KD keyboard display. If the ML-10-KD is not available, you may also use a laptop computer along with a serial cable, as shown in FIGURE 25 under “Using a Laptop Computer”.

USING the ML-10-KD KEYBOARD DISPLAY

Connect the keyboard display to the Serial I/O connector on the back of the ET Enclosure behind the cable cover. Refer to FIGURE 24 below.

FIGURE 23 - USING THE ML-10-KD KEYBOARD DISPLAY

With the Keyboard display plugged into the Serial I/O connector on the back of the ET Enclosure, there should be power to the I/O connector and now to the keyboard display with the display now being active.

Enter [*6] on the keyboard keypad. Then press [A] to advance to the first location (location #1) which is the Battery Voltage. You can ADVANCE to each of the next locations by pressing the letter [A] key. Pressing the letter [B] key will BACK-UP to the previous location. By entering [*0] you can leave the ML-10-KD in a “low energy mode”.

Remove the cable cover. Remove the cap from the Serial I/O connector and plug the keyboard display cable into the

The location values are not important at this time, as long as values are present.

connector.

After looking at all the locations needed be sure to do a [*0] to place the micro logger in a low energy mode to conserve battery charge.

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Model “PRO”- Weather Station

Weather Station - Model “PRO”

No display on the ML-10-KD keyboard.

(If there is display but NO response to

DATALOGGER LOCATION TABLE

input on the keyboard - continue with the next diagnostic problem below.)

Location Reading Normal Range

1 = Battery Voltage ~ 12.9 to 14.2 Volts

2 = Air Temp. C ~ close to air temp

3 = Relative Humidity ~ 0 to 100%

4 = Wind Run ~ Total Wind

5 = Solar Radation ~ 0 to 1.2 kW m-2

6 = Rain Fall ~ 0 to 2 Inches

7 = Wind Direction ~ 0 to 359 degrees

8 = Air Temperature ~ F degrees

9 = RH2 ~ 0 to 100%

10 = Wind Speed ~ MPH

If you see NO display on the keyboard then there is NO power output from the datalogger of the weather station.

Pins 1 and 2 of the Serial I/O connector should give +5 Volts DC.

If NO voltage is found - then check for incoming power to the weather station starting at the transformer check for 110 volts AC power to the transformer.

Check for +16 Volts AC coming from the secondary side of the transformer.

Check for +16 Volts AC at the two (2) terminals marked “CHG” on the panel of the ET Enclosure. (Refer to FIGURE 9 for location of +16VAC terminals).

If you have power all the way to the datalogger PC board - then you must replace the datalogger PC board and have the original datalogger PC board repaired.

13 = Enclosure RH ~ -40 degree to + 50

degree C or 10% to 30% when sealed for several hours.

No response using the keypad and/or erroneous letters in the display.

TROUBLESHOOTING PROBLEMS

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(If still NO response to keypad input then continue with the next diagnostic problem below.)

Check keypad response after each of the following steps:

• Make sure the battery has been

installed.

• Use a voltmeter to measure the

voltage on the 12V and G terminals; the voltage must be between 9.6 and 16 VDC.

At the datalogger:

• Make sure the battery has been

installed.

• Use a voltmeter to measure the

voltage on the 12V and G terminals; the voltage must be between 9.6 and 16 VDC.

• Make sure the datalogger is dis-

connected from the modem.

• Disconnect any communications or

storage peripherals from the datalogger.

• Enter [*] and wait a short time, at

least two (2) minutes for the datalogger to see the keyboard - you should get 00:00 or some other characters on the display. Enter a [*0] and you should get LOG 1.

Continue with [*6] followed by

entering [A] to advance to the next location. Continue to press [A] to check ALL locations of the datalogger.

• If still no response to keypad input -

then continue with the next diagnostic problem below.

No response from datalogger through SC32A or modem peripheral.

At the computer:

• Make sure the Station File is

configured correctly.

• Check the cable(s) between the serial

port and the modem. If cables are not those furnished with the weather station, then check for the following configuration using an ohm meter:

25-pin serial port:

computer endmodem end

2 2 3 3 7 7 20 20

9-pin serial port

computer end modem end

23 33

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420 57

• Make sure the modem is properly

configured and cabled.

If still no response, contact your local Rain Bird distributor.

-99999 Displayed in an input location.

• Make sure the battery voltage is

between 9.6 and 16 VDC.

• Make sure the Range parameter in

the measurement instruction covers the full scale voltage output by the sensor.

Unreasonable results displayed in an input location.

• Inspect the sensor for damage and/or

contamination.

Final Storage format limitations are exceeded (no number larger than 6999 in low resolution, or 99999 in high resolution is stored). Change the datalogger program.

USING A LAPTOP

COMPUTER

When a Laptop computer is being used to check the weather station it is necessary to use a Serial cable between the computer and the weather station, as configured in FIGURE 24 shown below.

CAUTION ! Before “plugging” the serial cable and computer into the Serial I/O connector on the back panel of the Enclosure - make certain that you have disconnected the 9-pin ribbon cable from the Short Haul Modem or the Phone Modem. If you fail to do so, it is a high possibility that you will damage the modem.

• Make sure the sensor is properly

wired to the datalogger.

• Check the multiplier and offset

parameters in the measurement instruction.

FIGURE 24 - CONFIGURATION

6999 or 99999 stored in final storage.

• Connect the Laptop computer, using

the serial cable as shown in FIGURE 25, to the Serial I/O connector on

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OF SERIAL CABLE

the back panel of the Enclosure - the same as shown for the Keyboard Display in FIGURE 24.

Nov., 2001

Weather Station - Model “PRO”

• Start-Up the Weather Software and

set the configuration up for the proper communication port.

• Be sure a direct connect weather

station has been configured.

• Enter a capital [W] from the main

menu.

• Enter the security code [6275].

WIRE PATH:

Before initially connecting a direct connect or phone line weather station, or when troubleshooting the weather station and the communication wiring is suspect, check the communication wires for their integrity.

LOOP RESISTANCE

• Choose a direct connect Weather

Station to monitor and the screen will go “BLANK”.

• Press the [ENTER] key until you see

an (*).

• Enter [7240L].

• Enter [7H].

• Enter [*6].

• [ENTER] [ENTER] - Continue to

[ENTER] and this will give you all the data locations and the current readings or each.

• Enter [* ] to put the datalogger in a

low energy mode.

Connect the pair of wires, you will be checking, together at the far end. Using a volt/ohm meter, measure across the wire loop. A “GOOD” wire path has less than 600 OHMS resistance across the loop.

GROUND RESISTANCE

Disconnect the communication wires at the MSP-1 pipe surge arrestor, located at the Weather Station. Using a volt/ohm meter, set the dial to R x 1K and measure from each wire to earth ground. A “GOOD” wire path has a high resistance to earth ground, of at least 750,000 OHMS or greater.

A “WS-PRO-SH” DIRECT CONNECT WEATHER STATION

Weather Station will not answer.

Test the wire path using a known

“Good” RAD SRM-5A Short Haul

CHECKING THE

Modem.

COMMUNICATIONS

Nov., 2001 Page 54

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Weather Station - Model “PRO”

First: Check that the RAD Short Haul

Modem, at the central computer location, is working correctly. This can be easily done by using the following method.

• Jumper the output terminals of

the RAD SRM-5A Short Haul Modem, located at the computer, as shown in FIGURE 26 below.

• Using a working (“Good”) RAD

SRM-5A Short Haul Modem connect the communication wires together at the weather station end as shown in FIGURE 26 below.

• With the Rain Bird Weather

Software, go to the Main Menu

• Be sure to configure a direct connect

weather station.

• Press a capital [W] from the Main

Menu screen.

• If a security number is asked for use

[6275].

• Choose a direct connect station and

the screen will go “BLANK”.

• Assuming you have connected the

output terminals of the modem as shown in FIGURE 25 below, what you type will be echoed back to the computer screen. Testing the short haul modem in this way will verify that it is working properly. If you do not see the characters, that you type, on the screen then the Short Haul Modem has a problem or the COM port and needs to be replaced.

and set the “capital lock” on the keyboard of the computer.

FIGURE 25 - TEST OF SHORT HAUL MODEM

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Second: After having determined, with the test above that the RAD modem

at the computer is “Good” - you can then check to see if the communication path, between the computer and the weather station is “Good”.

• Re-connect the field

communication wires to the RAD modem output terminals, of the RAD modem at the central computer location.

• At the Weather Station, disconnect

the communication wires from the MSP-1 pipe surge arrestors and tie the wires together as shown in FIGURE 26 below.

• With the Rain Bird Weather

Software, go to the Main Menu and set the “capital lock” on the keyboard of the computer.

• Be sure to configure a direct connect

weather station.

• Press a capital [W] from the Main

Menu screen.

• If a security number is asked for use

[6275].

• Choose a direct connect station and

the screen will go “BLANK”.

• Assuming you have connected the

communication wires correctly at the weather station end, as shown in FIGURE 26 below, what you type at the computer will be echoed back to the computer screen. Testing in this way will verify that the communication wiring is “Good”. If you so not see the characters on the screen, that you have typed, then you know that there is a problem with the communication wiring.

NOTE ! Remember that you have a “spare” pair of communication wires in the Belden #9883 cable. Using this spare pair substitute it for one of the other pairs and test again. If it is not this pair that are “bad” then substitute the “spare” pair for the other pair and test again. In this way you should be able to determine which pair are “bad” and use the “spare” pair in their place.

FIGURE 26 - TEST OF COMMUNICATION WIRES

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Weather Station - Model “PRO”

AC. The answer modem switch

A “WS-PRO-PH” PHONE

CONNECT WEATHER STATION

circuit requires 40 Volts to activate and allow the signal to pass to the datalogger.

Weather Station will not answer.

• Check the weather station for

operation on it’s own to be sure it is functioning properly. This will verify the proper voltage coming into

• The Datalogger detects the ring and

raises the modem enable line high (pin 5), to +5 Volts DC. (Measure

pin 5 to ground). the weather station and also if the datalogger checks out O.K.

CAUTION ! Connect a volt/ohm meter to the phone line only in extreme cases.

• Connect a telephone to the phone

line at the weather station and call out, or have someone call in. Listen

It is recommended to use FCC approved equipment only - while measuring current on a telephone line.

for any noise on the line. Refer to

NOTE below.

USE NO MSP-1, pipe surge arrestor

on the telephone communication wires.

NOTE ! A phone line going to the computer or to the weather station itself MUST BE DATA QUALITY. You can talk over a phone line that will NOT allow data communication.. Listen for any fuzzy noises and any disturbance at all. You must be sure the phone line is “Good”. Time and time again we have

If an MSP-1 pipe surge arrestor is used in the line, the Weather Station will usually answer and then hang up right away. The MSP-1 is for low voltage applications and the telephone line is excited to well over the 50 volt limit of the MSP-1 surge arrestor so will shunt

the line to earth ground. set up stations and the phone line is NOT good enough for communication. Make sure the phone company knows this will be for data communication. Have Phone Company check line ALL the way back to the weather station.

• Test the phone modem, at the

weather station by dialing out to the weather station. It is working and is O.K. if you can hear a dial tone and the dialing. This also verifies the communication path and most

• If the station is still not answering,

get your volt/ohm meter and measure across the phone line. It should read approximately 48 Volts DC, with the Ring as the positive side and the Tip the negative side.

modem settings.

• If telephone line appears to be O.K. -

then change the phone modem at the weather station, to a known “Good” phone modem and try again.

• Have someone call in and then

measure the voltage across the phone line. It should read 90 to 110 Volts

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• If the station still does not answer,

then have the telephone company check the phone line again, even if

Nov., 2001

Weather Station - Model “PRO”

it is the fourth time they have been out.

COMPUTER MODEM AND COMMUNICATION TROUBLESHOOTING:

Weather Software will not communicate with the weather station.

• Verify all the wiring, etc., at the

computer, to the modem, and to the field.

• Be sure the software is configured to

the correct communication port according to the type of MAXI software being used for the system; i.e., MAXI 5, NIMBUS or CIRRUS. If you arrive at weather through MAXI then the serial port is configured through the MAXI software.

• A data line monitor may be

necessary to test the output from the computer and to verify that the serial port is working O.K. Most times output can be verified, however, with RAD Short Haul Modem or a phone modem. A data line monitor RS-232 Mini-Tester (available at Radio Shack) is a device that connects into the line with the serial port and by using lights will show the status of all the data lines.

• It is important here to check the

communication serial port of the computer and verify that it is functioning correctly, just as is required when troubleshooting MAXI or MAXICOM.

TESTING THE SHORT HAUL

MODEM

For the older weather stations, which

used the RAD SH-6A Short Haul

Modems and the current “PRO” weather

stations, which use the RAD SRM-5A

Short Haul Modems - both of these

modems can be tested in the same

manner.

• With the modem connected to the

computer, jumper the output terminals of the RAD modem as shown in FIGURE 25.

• With the Rain Bird Weather

Software, go to the Main Menu and set the “capital lock” on the keyboard of the computer.

• Be sure to configure a direct connect

weather station.

• Press a capital [W] from the Main

Menu screen.

• If a security number is asked for use

[6275].

• Choose a direct connect station and

the screen will go “BLANK”.

• Assuming you have connected the

output terminals of the modem as shown in FIGURE 26, what you type will be echoed back to the computer screen. Testing the Short Haul Modem in this way will verify that it is working properly. If you do not see the characters, that you type, on the screen then the Short Haul Modem has a problem and

needs to be replaced. If you have the very old type Short Haul modem - it should be replaced with the

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Weather Station - Model “PRO”

newer type RAD SRM-5A modem, if at all possible.

3 DOWN Result codes sent to computer

• If the old SH-95C modem is working

properly you can measure +7 Volts DC across the (SRC) and the (R ET), during a rest period. This is only when the computer is out of the MAXI program and the Weather program. If the computer is running Weather then the reading will jump to +15 Volts DC.

• On the old SH-95C modem there is a

ring button, and the voltage level will go up to +15 volts DC when you push this button, and return to +7 Volts DC upon release & when the communication cable is disconnected form the SC95A.

• If these voltages do not exist, then

you must replace the modem or have the modem repaired.

4 DOWN Characters not

echoed

5 DOWN Auto-Answer disabled

6 DOWN Carrier detect always on

7 UP Single Line RJ11 phone jack

8 DOWN Enables Commands

9 UP Compatible with Bell 103/212A modems

10 UP Modem Reset when turned on

TESTING THE PHONE

MODEM

Test the phone modem by dialing out to the weather station. It works if you can hear a dial tone and the dialing. This verifies the communication path and

If a Hayes Model 1200 or 2400 Smart Modem is being used to communicate with the Weather Station - be sure the switch settings are as follows:

SW # Setting Function

most modem settings.

A phone line going to the computer or the weather station itself must be of DATA QUALITY . You can talk over a phone line that will not allow data communication. Listen for any fuzzy

1 DOWN Ignores DTR

noises and any disturbance at all. If the modem keeps “HANGING UP”, this is

2 UP English word result codes

SW # Setting Function

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an indication of either an incorrect setting or a bad phone line.

Nov., 2001

Weather Station - Model “PRO”

Appendix

gauge, wind direction indicator and wind speed indicator.

UPGRADING A MODEL “JR”

WEATHER STATION TO A MODEL PRO WEATHER

STATION:

The Model JR weather station can be easily converted to a Model PRO weather station by the use of the “Upgrade” kit.

This “Upgrade” kit gives the additional instrumentation of a tipping bucket rain

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Refer to main section of this manual for complete details:

Model “PRO”- Weather Station

Weather Station - Model “PRO”

NOTE! If longer than 8’-0” rods are used, then the rods shall be spaced no closer than the length of the rod from each other.

The 3 rods shall be driven into the ground with top of rod at least six inches (6”) below the finish grade. The rods shall be tied together below grade with #10 gauge or larger bare copper wire. The wire shall be attached to the rod using a brass clamp. A separate brass clamp shall be used for each attachment.

NOTE ! No more than one wire shall be used in any individual clamp. Multiple wires shall NOT be allowed.

FIGURE 27 - UPGRADE KIT

Any rod that has a ground wire connected to it, coming from the surge arrestor at the equipment or grounding

TYPICAL 3-ROD GROUNDING GRID:

the equipment, shall have a standard 18” x 24” rectangular valve box installed around the top of the rod. This shall

Grounding grids are required at the Central equipment location, for the weather station (grounding grid for the central equipment may also be used for the weather station if accessible) and at the weather station itself.

provide future access to inspect and/or maintain the MGP-1 grounding plate assembly, MSP-1 pipe surge arrestors, brass clamp and ground wire should this be necessary. Any of the other rods in the grid shall have a standard 6” diameter round valve box installed

A typical 3-rod grounding grid shall consist of three (3) 5/8” diameter x

around the top of the rod for future access.

8’-0” long copper clad grounding rods. The rods shall be in a triangular arrangement, if at all possible, with each rod at least 8’-0” away from any other rod.(refer to FIGURE 28 below). If it is impossible to arrange the rods in a triangular pattern then they may be arranged in a straight line (although NOT as effective) with each rod at least 8’-0” from any other rod.

Where MSP-1 pipe surge arrestors are required on the communication path wiring, the MSP-1 pipe surge arrestor shall be mounted on an MGP-1 grounding plate assembly. The MGP-1 grounding plate assembly in turn shall be securely attached to one of the grounding rods of the 3-rod grounding grid. Attach the MGP-1 to the ground rod that

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is nearest to the equipment, so as to have a minimum of exposed wire between the equipment and the surge arrestor itself.

Use 3M - DBY or DBR Direct Burial splice kits for ALL wire splices.

GROUND RESISTANCE - With the 3rod grounding grid we are attempting to get a ground resistance of 5 OHMS or less, if at all possible. Any thing above 15 OHMS is of little value for protection. In order for the surge arrestors to be effective they must be able to discharge to ground rather than allow the surge to go to the electronic components. Therefore the “HIGHER” the resistance to ground (higher OHM reading) the chance of the surge being shunted to ground rather than go to the electronic components. From this you can see that it is also important to maintain a “Good Ground” at ALL times.

BENTONITE CONTACT: In using grounding rods we are depending upon the “contact” of the surface of the rod to the soil. The greater the contact the better chance we have of obtaining a “good” ground. If you are in a soil type that you know will not give good surface contact with the rod, you may want to consider drilling a 4” to 6” diameter hole in which to place the ground rod. You can then back fill around the rod with Bentonite or other similar material that is very dense and in this way increase the contact of the rod with the soil.

inches or so below the surface on a good 6” deep bed of soil or Bentonite. Again rods should be 8’-0” apart and tied together with #10 gauge or larger bare copper wire at both top and bottom of the rods to form a grid.

ROCK LAYER: Where a rock layer is found under a shallow layer of soil, a 4’-0” x 4’-0” square piece of sheet steel , 3/8” to ½” thick, should be considered ot be laid horizontally on a 4” thick layer of soil or Bentonite over the rock layer. A bolt or short piece of steel rod welded to the plate will provide a means of connection to the steel plate. The plate should be covered to finish grade with good top soil.

IMPROVING EARTH GROUNDS:

When a grounding grid is first installed you are unable to get a true OHMs reading, since the rod surface will not be in good contact with the soil. The grid must be installed for 5 or 6 weeks before a meaningful reading can be obtained. It is also recommended that the grounds be checked at least once a year and in severe lightning areas perhaps as often as two or three times a year.

NOTE ! A good reading CANNOT be obtained with a volt/ohm meter. A Meggar or Vigra-Ground type instrument must be used to check the ground resistance.

If unsatisfactory readings are obtained, the ground may be improved in one of the following ways:

ROCKY CONDITIONS: In areas where you are unable to drive a rod or to bore a hole for a rod, you may need to consider laying the rods horizontal 12

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(1) Extend a #6 or larger bare copper

braided wire from one of the rods out

across a fairway and buried a

minimum of 12” below the surface.

Model “PRO”- Weather Station

Weather Station - Model “PRO”

Be sure the wire is between rows of sprinklers and away from other wires, pipes, etc. as far as possible. This will place the wire in an area that will be frequently watered and will increase the surface contact of the grounding network.

(2) In the center of the triangle, of the 3-

rod grid, install an 8’-0” long piece of 6” diameter perforated plastic pipe. Top shall be at least 6” below the finish grade. Fill this pipe with rock salt, Epson salts, or other suitable similar material and water it down. The salt will leach out into the soil and corrode the surface of the rods giving improved and greater surface contact. Place a 6” diameter valve box cover over the end of the pipe and cover it with soil to finish grade.

shall be wired through an MSP-1 pipe surge arrestor, at both the computer end and at the weather station end. The MSP-1 pipe surge arrestors shall be located as close to the equipment it is to protect as is practical. The MSP-1 pipe surge arrestors shall be mounted in MGP-1 grounding plate assemblies.

The MSP-1 pipe surge arrestor is marked, “EQUIP” on one end and “LINE” on the other end. When installing the MSP-1 be sure that the end marked “EQUIP” is located “toward the equipment” it is to protect, i.e., computer or weather station. The “LINE” end goes toward the field.

The Green wire on each end of the MSP1 pipe surge arrestor shall be attached to one of the grounding screws on the MGP-1 grounding plate assembly.

MSP-1 PIPE SURGE ARRESTORS:

Each of the pairs of wires in the communication path, between the central computer and the weather station,

REFER TO FIGURE 28 ON THE NEXT PAGE

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FIGURE 28 - TYPICAL 3-ROD GROUNDING GRID DETAIL

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Model “PRO”- Weather Station

Weather Station - Model “PRO”

FIGURE 29 - TESTING OF WIND SENSOR

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FIGURE 30 - TESTING OF SOLAR RADIATION SENSOR

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Model “PRO”- Weather Station

Weather Station - Model “PRO”

FIGURE 31 - TESTING OF RAIN GAGE

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FIGURE 32 - TESTING OF TEMPERATURE/RELATIVE HUMIDITY

SENSOR

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Model “PRO”- Weather Station

Weather Station - Model “PRO”

FIGURE 33 - TESTING OF AIR TEMPERATURE PROBE

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Rain Bird Pro Installation, Maintenance And Troubleshooting Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

8.0 INSTALLATION OF INSTRUMENTATION

10.0 INSTALLATION AT CENTRAL COMPUTER

Appendix