Installation manual

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Product #7852, 7852M, 7856, 7856M

AIN

OLLECTOR

TANDARD

AND

NDUSTRIAL

NSTALLATION

ANUAL

This instruction manual takes you step-by-step through the procedures

required to install the Rain Collector II. The Rain Collector II is designed for

use with any of Davis’ weather stations (with the exception of the Perception

Station). Each station can display rainfall in either inches or millimeters. For

greatest accuracy, however, use a rain collector which measures in the same

unit in which you wish to display rainfall.

Instructions for displaying rainfall on the Weather Wizard II-S

, Weather Wiz-

ard III

, and Weather Monitor II

are also included in this manual. Instructions

for displaying rainfall on the GroWeather™, Health EnviroMonitor™, and

Energy EnviroMonitor™ are contained in the station’s user’s manual.

OMPONENTS

The Rain Collector II includes the following components. Please make sure you

have all listed components before continuing.

✦

Rain Collector with Cable

The rain collector comes with the cone attached to the base. The standard

version of the rain collector comes with a 40’ (12 m) cable. The industrial

version comes with a 16’ (5 m) cable.

✦

Four #8 x 3/4" Screws

✦

Debris Screen

This screen is placed into the rain collector cone to help prevent debris

from clogging the funnel hole.

Summary of content (16 pages)

PAGE 1
R A I N C O L L E C T O R II STANDARD AND INDUSTRIAL INSTALLATION MANUAL This instruction manual takes you step-by-step through the procedures required to install the Rain Collector II. The Rain Collector II is designed for use with any of Davis’ weather stations (with the exception of the Perception II® Station). Each station can display rainfall in either inches or millimeters. For greatest accuracy, however, use a rain collector which measures in the same unit in which you wish to display rainfall.
PAGE 2
Rain Collector Internal Components The illustration below shows the internal components of the rain collector, many of which are referenced in this manual. Note that the industrial versions of the rain collector also include a terminal block to which the rain collector cable is connected and a bubble level to help you insure that the rain collector is mounted on a level surface. Neither is pictured below.
PAGE 3
T OOLS AND M ATERIALS N EEDED You may need some of the following tools and materials in order to install the rain collector. ✦ Drill with 3/32" (2 mm) drill bit ✦ Medium Phillips Screwdriver ✦ 3/16" (or 5 mm) Wrench ✦ Cable Clips or Weather-Resistant Cable Ties with screw holes or other means for mounting ✦ Bubble Level (standard versions only) R AINFALL C ALIBRATION N UMBER Each station uses a rainfall calibration number (CAL) to determine how much water each bucket tip (i.e., pulse) represents.
PAGE 4
T ESTING THE R AIN C OLLECTOR II Before installing the Rain Collector II, test the unit. If you are replacing a rain collector you previously installed, make a note of the total rainfall amount displayed. You may want to reenter this amount after you test the rain collector. 1. Turn the rain collector upside down and remove the cone from the base by rotating the base until the latches on the cone line up with the latch openings in the base then lifting the base away from the cone.
PAGE 5
I NSTALLING THE R AIN C OLLECTOR II Follow the instructions below to install the Rain Collector II. CAUTION:Climbing on your roof may be hazardous. If you are uneasy about installing your unit please have a qualified professional complete the installation. Davis specifically disclaims any liability for injury or loss resulting from the installation or use of the Rain Collector II. Follow the instructions in this section to install your rain collector.
PAGE 6
Typical Standard GroWeather/EnviroMonitor Installation The illustration below shows a typical standard rain collector installation for the GroWeather, Energy EnviroMonitor, or the Health EnviroMonitor. The rain collector cable attaches to connector S1 on the sensor interface module (SIM).
PAGE 7
Typical Industrial GroWeather/EnviroMonitor Installation The illustration below shows a typical industrial rain collector installation for the GroWeather, Energy EnviroMonitor, or the Health EnviroMonitor. The rain collector cable attaches to connector S1 on the sensor interface module (SIM).
PAGE 8
Choosing a Location for the Rain Collector Keep the following in mind when choosing a location for your rain collector. ✦ You must mount the Rain Collector II on a level surface. To make sure the surface is level, use a bubble level or pour water into the T-shaped leveling trough in the base and observe the surface of the water. Users of the industrial rain collector may use the bubble level attached to the base to insure that the mounting surface is level.
PAGE 9
6. Fasten the base to the mounting surface using the #8 x 3/4" screws provided. FASTEN BASE TO MOUNTING SURFACE 7. Attach the rain collector cable to the appropriate connector on the junction box/SIM. 8. To be certain the rain collector is functioning properly after installation, retest the unit as described “Testing the Rain Collector II” on page 4. 9.
PAGE 10
E XTENDING C ABLE R UNS If the cable length supplied with the rain collector is not long enough for your purposes, you may extend it. The maximum length of cable is 900 feet (270 m). Note that this length represents the total length from the rain collector to the console, including any length of cable from the junction box/SIM to the console. ✦ Standard Rain Collector Obtain Standard 4-Conductor Extension Cables from Davis and connect them to the existing rain collector cable.
PAGE 11
A DJUSTING THE R AIN C OLLECTOR II The Rain Collector II is calibrated at the factory so the bucket tips (and records rainfall) for each 0.01" (or 0.2 mm) of rain. To adjust the calibration slightly, use a 3/16" (or 5 mm) wrench to rotate the adjustment screws which are located underneath the bucket (see “Rain Collector Internal Components” on page 2). The adjustment guide embossed in the platform shows how far you must rotate both screws in turn to effect a 1% and a 2% change.
PAGE 12
U SING THE R AINFALL F UNCTION The instructions below explain how to display rainfall on the Weather Wizard II-S, Weather Wizard III, and Weather Monitor II. Instructions for displaying rainfall on the GroWeather, Energy EnviroMonitor, and Health EnviroMonitor are contained in the station’s user’s manuals. To Display Rainfall 1. To display daily rainfall, press RAIN. The daily rainfall and the word RAIN appear on the display. DAILY RAINFALL 2. To display total rainfall, press RAIN again.
PAGE 13
To Clear Rainfall Daily and total rainfall are independent of each other. You must clear each register separately. 1. Press RAIN once or twice to select daily or total rainfall, as desired. 2. Press CLEAR and hold it down. The display will flash several times and then the weather station clears rainfall. DAILY RAINFALL CLEARED Note: Performing a “total clear” on the weather station does not clear rainfall.
PAGE 14
C ALIBRATION OF O LDER M ODEL W EATHER S TATIONS This information applies only to users of the Weather Wizard II-S, Weather Wizard III, and Weather Monitor II manufactured prior to April, 1993. To check if your station meets this criterion, press the RAIN button on the console. If, when set to inches, the display reads 0.0 (rather than 0.00), you have an older model station. 0.01" Rain Collector II When using the 0.
PAGE 15
T ROUBLESHOOTING G UIDE Before calling Technical Support (1-510-732-7814), carefully check the following troubleshooting guide. You may be able to solve the problem yourself. ✦ Rainfall is not registering on the console or the console has a large error. Try the following: ✦ Check the cable connections from the sensor to the console. Cable connections account for a large portion of the potential problems. Connections should be firmly seated in the jacks and plugged in straight.
PAGE 16
Product Numbers: 7852, 7852M, 7856, 7856M Davis Instruments Part Number: 7395-024 Rain Collector, Standard & Industrial Rev. C Manual (7/7/99) This product complies with the essential protection requirements of the EC EMC Directive 89/336/EC. © Davis Instruments Corp. 1996. All rights reserved.