globalwater WE900 User manual

Global Water
800-876-1172 •globalw.com
- 1 -
Global Water
Instrumentation, Inc.
11257 Coloma Road
Gold River, CA 95670
T: 800-876-1172
Int’l: (916) 638-3429, F: (916) 638-3270
4-20mA Weather Station: WE900
5/28/02

Global Water
800-876-1172 •globalw.com
- 2 -
Congratulations on your purchase of the Global Water WE900
4-20mA Weather Station. This instrument has been quality tested
and approved for providing accurate and reliable measurements.
We are confident that you will find the WE900 to be a valuable
asset for your application. Should you require assistance, our
technical staff will be happy to help.
Table of Contents
I. Checklist •••••••Page 3
II. Inspection ••••••3
III. Description ••••••3
IV. Installing the 4-20mA Weather Station
•••4
V. 4-20mA Weather Station Calibration Information •5
VI. Specifications ••••••5
VII. Maintenance ••••••5
VIII. Troubleshooting ••••••6
IX. Warranty •••••••7
X. Appendix A: Optional Equipment Mounting Instructions 8
* Copyright Global Water Instrumentation, Inc. 2002

Global Water
800-876-1172 •globalw.com
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I. Checklist
a. Weather Sensors
b. Weather Sensor Manual
c. Mounting Hardware
d. 4-20mA Weather Station Manual
II. Inspection
a. The WE900 unit was carefully inspected and certified by Global
Water’s Quality Assurance Team before shipping. If any damage has
occurred during shipping, please notify Global Water Instrumentation,
Inc. and file a claim with the carrier involved.
Use the checklist to ensure that everything needed to operate the
WE900 was shipped.
III. Description
a. The Global 4-20mA Weather Station, WE900, is a rugged and reliable
system for monitoring weather related parameters.

Global Water
800-876-1172 •globalw.com
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IV. Installing the 4-20mA Weather Station
a. Please refer to Appendix A prior to installing the 4-20mA Weather
Station to review any optional sensor’s mounting instructions that may
modify the standard setup.
b. Each sensor comes equipped with mounting hardware for a 1”
diameter pipe.
c. The 4-20mA Weather Station stand consists of a 1” diameter stainless
steel cross bar with a T fitting and the mast (two 1” diameter tubes
connected together with a pvc insert). The top piece of the mast has a
T fitting with a 1” stub attached also.
d. Insert the bottom of the mast into a solid base and secure it. Global
Water sells a Tripod for this purpose, WE830.
e. Slide the top of the mast onto the pvc insert to complete the mast.
f. Mount the cross bar to the top of the mast using the attached T fitting.
Tighten the set screw with the enclosed allen wrench. Ensure that the
cross bar is level. NOTE: For best results the cross bar should be at
least 8’ above the ground or roof.
g. The Wind Speed and Wind Direction sensors should be mounted on
the opposite ends of the cross bar. Loosen the set screw holding the
Wind Direction sensor in the elbow. Line up the notches on the Wind
Direction Sensor, turn the sensor until the notches face north, and
secure the sensor.
h. The Temperature Sensor and Humidity Sensor are pressure fitted
inside the Solar Shield. The Solar Shield has a 1” elbow that mounts
on the stub attached to the top portion of the mast. Place the elbow
on the stub and secure with the set screw.
i. If the mast is in an area of extreme wind it may be necessary to secure
the 4-20mA Weather Station with guy wires (not included).

Global Water
800-876-1172 •globalw.com
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V. 4-20mA Weather Station Calibration Information
a. Each Weather Sensor will have to be calibrated to your PLC, RTU, or
SCADA system. Calibration numbers have been attached to each
sensor. Refer to the Weather Sensor manual to determine how often
each sensor should have its calibration checked.
VI. Specifications
a. Refer to the Weather Sensor manual for individual sensor
specifications.
b. 4-20mA Weather Station Stand
Material: 1” Stainless Steel Tube
VII. Maintenance
a. Refer to the Weather Sensor manual for individual sensor
maintenance instructions.
b. Periodic cleaning of the stand may be necessary. Use soap and
water.

Global Water
800-876-1172 •globalw.com
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VIII. Trouble Shooting
a. Refer to Weather Sensor manuals for more information.
Other issues
b. Call us for tech support: 800-876-1172 or 916-638-3429 (many
problems can be solved over the phone). Fax: 916-638-3270 or Email:
Be prepared to describe the problem being experienced, including
specific details of the application and installation and any additional
pertinent information.
c. In the event that the equipment needs to be returned to the factory for
any reason, please call to obtain a RMA # (Return Material
Authorization). DO NOT return items without a RMA # on the outside
of the package.
Include a written statement describing the problems.
Send the package with shipping prepaid to Global Water’s factory
address. Insure the shipment, as the warranty does not cover damage
incurred during transit.
d. When calling for tech support, please have the following information
ready;
1. Model #.
2. Unit serial number.
3. P.O.# the equipment was purchased on.
4. Global Water’s sales number or the invoice number.
5. Repair instructions and/or specific problems relating to the
product.

Global Water
800-876-1172 •globalw.com
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IX. Warranty
a. Global Water Instrumentation, Inc. warrants that its products are free
from defects in material and workmanship under normal use and
service for a period of one year from date of shipment from factory.
Global Water’s obligations under this warranty are limited to, at Global
Water’s option: (I) replacing or (II) repairing; any products determined
to be defective. In no case shall Global Water’s liability exceed the
products original purchase price. This warranty does not apply to any
equipment that has been repaired or altered, except by Global Water
Instrumentation, Inc., or which has been subject to misuse, negligence
or accident. It is expressly agreed that this warranty will be in lieu of
all warranties of fitness and in lieu of the warranty of merchantability.
b. The warranty begins on the date of the product’s invoice.

Global Water
800-876-1172 •globalw.com
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X. Appendix A: Optional Equipment Mounting Instructions
Barometric Pressure Sensor Mounting Instructions
a. The barometric pressure sensor should be mounted in a manner that
protects it from the elements, but exposes it to the air. Global Water
recommends mounting it in some type of weather resistant enclosure
that is vented. If this is not practical the sensor can be mounted, with
the sensing nozzle face down, on the station’s stand using a hose
clamp or other type of strap.
Solar Radiation Sensor Mounting Instructions
a. The Solar Radiation Sensor comes with mounting hardware similar to
the Wind Direction and Wind Speed Sensors.
b. The T fitting and stub should be mounted on the upper portion of the
mast and secured at a height and in a direction where the sensor will
not be shaded by any other sensor of object. Tighten the T fitting’s set
screws with the enclosed allen wrench to secure the stub in place.
c. The Solar Radiation Sensor has a 1” elbow that mounts on the stub.
Place the elbow on the stub and secure with the set screw.
Tipping Bucket Mounting Instructions
a. See Tipping Bucket manual for installation instructions.
Solar Panel Mounting Instructions
d. The Solar Panel comes with mounting hardware similar to the Wind
Direction and Wind Speed Sensors.
e. The T fitting and stub may be mounted any where on the mast as long
as the solar panel faces the sun’s general path across the sky, refer to
the solar panel manual for further instructions, available online at,
www.globalw.com, in the downloads section. Tighten the T fitting’s set
screws with the enclosed allen wrench to secure the stub in place.
f. The Solar Radiation Sensor has a 1” fitting that mounts on the stub.
Place the fitting on the stub and secure with the set screw.
This manual suits for next models
1
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