Oregon Scientific WMR918 User Manual

CABLE FREE WEATHER
STATION
MODEL: WMR918
USER'S MANUAL

SECTION 1 INTRODUCTION

Congratulations on your purchasing the WMR918 Cable Free
Weather Station. An all-purpose easy-to-use system, the WMR918
lets you monitor the following weather elements:
- Air temperature
- Relative humidity
- Barometric pressure
- Wind speed and direction
- Rainfall
The WMR918 is also equipped with:
- RF calendar clock with daily alarm
- Weather forecast within 32 to 48 km (20- to 30-mile) radius
- Weather alarms
- Memory for maximum and minimum readings
- Simple, touch-screen operation
- RS232 PC connection jack
- backlight
STANDARD PACKAGE
The original WMR918 comes complete with the following:
- Main unit (WMR918)
- Anemometer (WGR918)
- Thermo-hygrometer (THGR918)
- Rain gauge (PCR918)
- Baro-thermo-hygrometer (BTHR918)
- 12V AC adapter
The anemometer, thermo-hygrometer and rain gauge are powered
by separate solar transmitters (STR918).
The WMR918 can support up to seven different remote instruments.
You can also connect up to three optional thermo or thermo-hygro
sensors to the system.
Optional items include:
- Thermo-hygro sensor (THGR228/THGR238)
- Thermo sensor (THR228/THR238)
Contact an authorized dealer for optional items.

SECTION 2 INSTALLATION

The WMR918 operates at 433MHz. No wire installation is required
among units.
The WMR918 has an effective range of 100 meters in an open area.
Position the units within the range and be sure the transmission
path is clear of interference and obstacles.
Note:The anemometer, thermo-hygrometer and rain gauge should
be installed outdoors and in locations that best measure the weather
elements the instruments are designed for. As for the baro-thermo-
hygrometer, it must be installed indoors. If you have any optional
thermo or thermo-hygro sensors, they can be installed outdoors or
indoors.
THE ANEMOMETER
The anemometer measures wind speed and direction.
To install it,
1. Place the wind cup over the thinnest shaft on the anemometer's
T-bar.
2. Tighten the screw on the base of the wind cup.
1