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I
NTRODUCTION
This manual covers basic GroWeather/EnviroMonitor installation, including
how to connect your sensors to the sensor interface module (SIM) and how to
power your unit. Instructions on installing/mounting sensors and other sys-
tem components (such as the Alarm Output Module) are contained in the man-
uals for those products. This manual does include several installation drawings
which depict typical GroWeather/EnviroMonitor installations and should help
you connect all of your components correctly.
S
C
YSTEM
OMPONENTS
The system includes the following components. Please make sure you have all
listed components before continuing.
Console with Mounting Base attached
Sensor Interface Module
8-foot (2.4-m) 8-Conductor Cable
AC-Power Adapter
Two #8 X 3/4" Pan Head Self-Threading Screws
16.5-foot (5 m) Ground Wire (12 AWG)
Three #6 x 1" (25 mm long) Self-Threading Screws
S
Y S T E M
F
S
O R
T A N D A R D
E
A N D
N V I R O
For 7450 (GroWeather), 7460 (Energy EM), and 7470 (Health EM)
I
N S T A L L A T I O N
G
W
R O
E A T H E R
M
™ S
O N I T O R
™
Y S T E M S
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Summary of Contents for Davis Instruments EnvrioMonitor
- Page 1 NTRODUCTION This manual covers basic GroWeather/EnviroMonitor installation, including how to connect your sensors to the sensor interface module (SIM) and how to power your unit. Instructions on installing/mounting sensors and other sys- tem components (such as the Alarm Output Module) are contained in the man- uals for those products.
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Page 2: Tools And Materials Needed
System Installation Two Cable Ties Four Adhesive Pads Two Cable Label Sheets OOLS AND ATERIALS In addition to the components listed above, you may need some of the follow- ing tools and materials. Please be sure you have everything you need before beginning the installation. - Page 3 Labeling Cables Any installation is going to include a number of cables running from various sensors and components to other components. To alleviate confusion, we have included label sheets which you should use to mark your cables (see “Cable Connector Codes” on page 2).Before you begin installation, lay out all of your cables and attach the appropriate label to each end of each cable.
- Page 4 System Installation OUNTING THE ENSOR You may mount the SIM on a wall or other vertical surface or you may simply set it down on a horizontal surface. It should be sheltered from weather and located near a grounding point. You may use our Complete System Shelter (#7724) or Multi-Purpose Shelter (#7728) to provide protection from weather.
- Page 5 Mounting the Sensor Interface Module 3. If you plan to place the SIM on a horizontal surface, attach one of the adhesive pads to each of the four raised circles on the underside of the base as shown below. TTACHING DHESIVE Standard System Installation Manual Page 5...
- Page 6 System Installation ONNECTING TO THE Make sure that you install your sensors and run all necessary cables to the SIM location before connecting cables to the SIM. Connecting to the Sensor Interface Module 1. Attach one end of the 8-conductor cable (which runs from the SIM to the console) to connector S7.
- Page 7 3. Connect the spade lug on the ground wire to the GND terminal at JP1. You need to ground the SIM to take advantage of RFI and surge suppression capabilities. Routing Cables out of Sensor Interface Module 1. Gather the cables connected on the left of the SIM (including the ground wire) and secure them to the cable tie lug using a cable tie.
- Page 8 System Installation 3. Finally, reattach the cover by putting the cover into place (as shown below) and push- ing it onto the base until the tabs on top of the cover snap back into their slots. Make sure the cables run out the bottom of the SIM as shown below. ONNECTING THE ONSOLE In order to connect cables to the console, you must remove the mounting base...
- Page 9 Selecting a Site for the Console Unless you use Davis’ Complete System Shelter or a similar weather-proof shelter, you should locate the console indoors. For more accurate readings, fol- low these suggestions.
- Page 10 System Installation “Horizontal” Orientation Use this mounting base orientation if the console’s LCD will be below eye level once the console is positioned. Attach the mounting base as shown below and then place the console onto any flat surface. “ Vertical” Orientation Use this mounting base orientation if the console’s LCD will be at or above eye level once the console is positioned.
- Page 11 To Display the Console on a Wall If you want to attach the console to a wall, follow the instructions below. 1. Mark the location of the two keyholes on the back of the mounting base. 2. Use a drill with a #29 (.136" or 3.5-mm) drill bit to make pilot holes in these locations. 3.
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Page 12: Installations
SRM Pair is connected to a free serial port on your computer. The SRM Pair is connected using a 2-twisted pair cable (Davis Product #7884) which is not included. Using 22 AWG cable, you may run up to 4 miles of cable between the SRM Pair. - Page 13 Alarm Output Module Connected to Sensor Interface Module The illustration below shows an Alarm Output Module (AOM) connection made at the Sensor Interface Module (SIM). The AOM connects to the SIM using the provided 2’ AOM Cable or a 40’ (12 m) Standard 6-Conductor Exten- sion Cable.
- Page 14 System Installation Alarm Output Module Connected to Interface Cable Adapter Module The illustration below shows an Alarm Output Module (AOM) connection made at the Interface Cable Adapter Module (ICAM). The AOM connection must be made using either the 2’ AOM Cable or a 40’ (12 m) Standard 6-Con- ductor Extension Cable.
- Page 15 Using Power Y-Cable to Power Console and AOM It is possible to use a power Y-cable to provide power to both the console and the AOM using a single AC-power adapter, as shown below. The power Y-cable is provided with the AOM. Standard System Installation Manual SING OWER...
- Page 16 System Installation Field System Installation The illustration on the following page shows an example of an installation in which the sensor interface module is placed outside (using the Multi-Purpose Shelter for protection) and a single cable is run from the SIM to the console, which is located indoors.
- Page 17 Typical Installations IELD NTERFACE NSTALLATION Standard System Installation Manual Page 17...
- Page 18 System Installation Field System with AC Power The illustration below shows an installation in which the console is located with the SIM (and, optionally, the AOM) in the field near the sensors. The con- sole and modules are housed in the Complete System Shelter (CSS). The Com- plete-System-Shelter Heater might also be included.
- Page 19 Field System with Wired DC Power This system configuration has the same characteristics and advantages as those of the AC-powered system described in “Field System with AC Power” on page 18. In this case AC power is not wired to the site. Rather, the power adapter is plugged into an available circuit in a sheltered location, and the (nominal) 12-Volt DC output is supplied to the station with a two-wire cable (twisted-pair is preferred, but not required).
- Page 20 System Installation Solar-Powered Field System The illustration below shows an installation in which the Complete System Shelter (CSS) houses the console, a battery, and the charging regulator. As shown in “Field System with AC Power” on page 18, data may transmitted via Link cable, read visually from the display, or uploaded to a computer brought to the site.
- Page 21 Solar-Powered Field System with Radio The illustration below shows a solar-powered system (see “Solar-Powered Field System” on page 20) in which the WeatherLink commands and data are communicated via a user-supplied radio. The 1200- or 2400-baud WeatherLink is compatible with any transparent communications channel. Because the solar panel and battery of the Solar Power Kit are not sufficient to supply the radio for continuous operation, the Alarm Output Module is used to switch on power to the transmitter for short scheduled periods.
- Page 22 System Installation “Outbuilding” System Configuration This variation of the “Field System Installation” (page 16) places the console and WeatherLink in a barn or other shelter and then uses a Short-Range Modem Pair (or radio) to communicate with the computer at the “central” site. The figure below shows the use of Surge Protectors (optional) on the SIM-to- console and WeatherLink cables.
- Page 23 The figure below shows an “outbuilding” system configuration with the addi- tion of an Interface Cable Adapter Module and Alarm Output Module, enabling the weather station, the user, or a computer program to provide inputs to controllers of heaters, fans, motors, or other equipment in the vicinity of the barn or shelter.
- Page 24 For Product Numbers: 7450 (GroWeather), 7460 (Energy EM), and 7470 (Health EM) Davis Instruments Part Number: 7395-073 Standard System Installation Manual Rev. B Manual (7/13/99) GroWeather and EnviroMonitor are trademarks of Davis Instruments Corp. WeatherLink is a registered trademark of Davis Instruments Corp. © Davis Instruments Corp. 1997. All rights reserved.