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WMS-16 Weather Station Operator’s Manual

12

ALARMS

There are six user programmable alarms on the WMS-16.
They can be assigned to either of two alarm switches.
(ALARM 1 and ALARM 2) which provide a switched
connection to ground. Electrical connection is made to the
terminal strip at the positions labeled ALARM 1 and ALARM
2. The maximum current sinking capability of these switches
is 2amps. 

SETTING UP THE ALARMS

Part A: Selecting the Sensor to be alarmed and the Alarm
Thresholds and the On and Off Delays for each Alarm

Press ENTER to get to the MAIN MENU.
From the MAIN MENU press number 1. STATION SETUP
From the STATION SETUP menu press number 7. ENTER
ALARM THRESHOLDS.
Select ADD, DELETE or QUIT. If you select Add, the next
menu will display the list of sensors that are currently
activated.
To add an alarm, enter the sensor number.

Enter the type of alarm function you wish to use Exclusive
(Alarm switch is closed when the reported sensor value is
outside of the low and high values selected.) or Inclusive
(Alarm switch is closed when the reported sensor value is
between the low and high values selected.).
Enter Output: A1 [1] or A2 [2].
Enter low threshold.
Enter high threshold.
Enter on delay in seconds [0-1200]. It is the time that the
sensor value is in the alarm condition before the alarm switch
activates.
Enter off delay in seconds [0-1200]. It is the time that the
alarm switch drops out of the alarm condition before the alarm
switch deactivates.
After entering this information the Setup menu reappears and
to add additional alarms the process must be repeated.

Part B: Interfacing to the Alarm Circuit

An intermediate relay is recommended as the alarm interface
to the device being controlled by the alarm. The intermediate
relay provides isolation from any voltage or current spikes that
might be associated with the device being controlled, e.g. a
pump motor starting. Further, it is possible to use a
programmable time relay in order to insure that the alarm does
not go into a dithering state. A typical implementation is
shown in Figure 11.

         

Figure 14 Alarm Setup

Interfacing the WMS-16 with a
Telephone Modem

The WMS-16 has a modem compatible firmware, which
makes it possible to connect a standard telephone modem,
with a speed capability of at least 9600 baud, between the
WMS-16 and a telephone line so that the WMS-16 can be
accessed remotely via telephone from a computer. 

The serial cable from the WMS-16 is plugged into the modem.
The modem at the WMS-16 is configured for auto answer and

Содержание WMS-16

Страница 1: ...www omega com e mail info omega com omega com User sGuide WMS 16 Complete Weather Station Shop online at...

Страница 2: ...e minute to sixty minutes This logged data can be retrieved for display or copied to a floppy or hard disk for permanent storage using the options available on the main menu When retrieved for viewing...

Страница 3: ...this protection Temperature is sensed using a thermistor element whose resistance changes in response to temperature fluctuations Relative humidity is sensed by changes in the dielectric constant of...

Страница 4: ...ntrol Module The control module should be located as close as possible to the computer that will be used to communicate with the WMS 16 RS 232 communications the communication protocol used with the W...

Страница 5: ...e will be no backup power source A fully charged 12V 7 amp hour battery will run the WMS 16 for three to four days With the backup battery in place the WMS 16 will continue collecting and logging data...

Страница 6: ...e WMS 16T A6 7 Wind Direction WMS 02 A7 Add sensor A delete sensor D or quit Q The instructions in Appendix 1 direct you through the enabling procedure for each type of sensor should any sensor that y...

Страница 7: ...PEED 3 9mph peak windspeed 7 8mph during past 10 min DIRECTION WNW 299deg varying 48deg during past 10 min WINDCHILL 52F CURRENT TEMPERATURE 51 6F 0 2F change during past hour TODAY S HIGH LOW 53F at...

Страница 8: ...cedure allows you to specify certain operational parameters that the WMS 16 uses in its calculations and on its display Run Station Setup when using the weather station for the first time After that i...

Страница 9: ...6 Station Sensor configuration will appear If all of the sensors that you intend to use are shown as being configured then press Q and Enter If you wish to add or delete a sensor then Press A for add...

Страница 10: ...ly blocks with a minimum retrievable block of one full day s data After selecting 3 from the main menu specify the number of hours of data to be retrieved The data will be displayed in the format show...

Страница 11: ...9 32 0 00 0 02 01 15 31 2 9 4 5 292 57 1 0 0 61 29 31 0 00 0 02 01 15 32 2 1 4 2 266 57 2 0 0 61 29 31 0 00 0 02 01 15 33 3 1 4 2 292 57 2 0 0 62 29 31 0 00 0 02 01 15 34 3 8 5 1 267 57 2 0 0 61 29 31...

Страница 12: ...ents of the memory is downloaded each time the Memory Download procedure is invoked The data transfer is a nondestructive readout The format of downloaded data is shown in Figure 9 Omega Base Station...

Страница 13: ...hold Enter high threshold Enter on delay in seconds 0 1200 It is the time that the sensor value is in the alarm condition before the alarm switch activates Enter off delay in seconds 0 1200 It is the...

Страница 14: ...ges in the as delivered setup Instructions for setting up the WMS 16 with the following sensors Wind Speed and Direction Connect the wind sensor s signal cable to the terminal strip on the back of the...

Страница 15: ...the Sensor Input Channel menu select number 11 ANALOG INPUT A7 Then Press ENTER The Sensor Configuration menu appears and it will show Sensor type Model Input Calibration Wind Speed WS 01 02 P1 Wind...

Страница 16: ...lect 5 Humidity From the Humidity Sensors menu select 1 25500504 U 40 Then press ENTER From the Sensor Input Channel select 8 A4 Then press ENTER The Sensor Configuration menu appears and it will show...

Страница 17: ...s a two conductor cable Connect one conductor to a GROUND terminal and the other conductor to terminal P3 INITIALIZATION OF THE RAIN GAUGE Press EXC to get the MAIN MENU From the MAIN MENU press numbe...

Страница 18: ...you do not want to add another sensor select Q You will be asked if you are sure that you want to erase memory If you have added or deleted a sensor select Y if not select N and press ENTER Installati...

Страница 19: ...2 mph WMS 16 5E 0 5 mph Time Constant 2 seconds WIND DIRECTION Range 0 360 Resolution 1 Accuracy 3 TEMPERATURE Range 40 to 140 F Resolution 1 F Accuracy 1 F RELATIVE HUMIDITY Range 0 100 RH Accuracy...

Страница 20: ...ket Rain Gauge 40 Cable WMS 16PE Power Supply 220 VAC WMS ENCL 16A NEMA 4X Enclosure Assembly includes mounting brackets 12V 7AH battery and 10 watt solar panel battery charger WMS ENCL 16B NEMA 4X En...

Страница 21: ...city Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industria...

Страница 22: ...130 621 400 FAX 33 0 130 699 120 Toll Free in France 0800 4 06342 e mail sales omega fr Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll...

Страница 23: ...not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is no...

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