(1) Temp, (2) Indoor = indoor temp at control box
(1) Humidity, (2) Indoor = indoor humidity only if the optional sensor is connected.
(1) (any data key), (2)Up = high value for the day and time it occured
(1) (any data key), (2)Dn = low value for the day and time it occured
(1) Rain, (2)Up = yesterday's rain
(1) Rain, (2)UP, (3)Up = rain this year [use Down for the lows]
(1) (any data key), (2)Up = yesterday's high
(1) (any data key), (2)Up, (3)Up = highest ever value & when it happened
While the long term value is being displayed it can be reset to 0 by hollding Clear+Date.
Baro + Time = 3 hour change in barometric pressure
Clear + Alarm = to turn of flashing battery if a new battery has been installed
Serial Port Commands
Wind + Clear (3 seconds down) = Data Logging Mode
Wind&Temp + Clear (3 seconds) = Packet Mode
Rain + Clear (3 seconds) = Complete Record Mode
Temp + Clear (3 seconds) = Modem Mode
Old (small) Wind Speed & Direction +
Rain tiping bucket
Outdoor Temp & Humidity with some weather protection on North side of house.
Jun 10, 2011 - there have been two occasions when the power plug has slipped out of the jack, causing the display internal 9V battery to be run down. Some method of strain relief is needed to keep this from happening.
|Wind Speed and Direction
Note: This is the old one that's small.
This is a patented design where there's only 4 wires for both wind sped and direction. The Heathkit wind speed and direction system uses a big cable of wires to handle the same function.
There are a couple of problem with it.
1) In order to get a wind direction reading there needs to be enough wind to turn the cups. If the cups are not turning then there's no direction indication. In the Heathkit system the wind direction is very sensitive to mild gusts and so even when the cups are not turning you can tell something is happening.
2) The cups do not turn until the wind is well above 5 MPH, so for most of the time there's no wind information of any kind.
That's why the new version of the 2100 uses much a much larger vane and cups, plus maybe a different mechanical design.
The Heathkit units uses ball bearings.
|Outdoor Temperature Sensor
Not used, replaced by combined Temp-Humidity sensor.
|Outdoor combined Temp &
|Tipping Bucket Rain Gauge
|In order to get the tipping
bucket rain gauge to fit onto the mast bracket the four
in the TB rain gauge need to be drilled out to 3/16" so
they will fit
on the studs.
The two large holes in the bottom of the bracket are directly below the water outlets in the TB rain gauge.
|12 VDC @ 400 ma Wall wart
|Mounting parts for the
Wind speed cups and mast mount clamp
|Radio Shack TV mast
|Radio Shack TV Mast Tripod
|Installed in living room,
than try an install on roof. This way all the quirks
addressed and the system tested.
Confirmed that the wind speed and direction functions work.
problem showed up when trying to set the leap year number
1, 2 or 3 options).
The battery icon is blinking. This happens when the backup 9V battery is missing or dead.
In my case the battery is fresh, which can be proved by pulling the power supply plug and seeing that the display stays on.
For some reason the keyboard/display unit does not see the battery but does use it's power. This seems to prevent entering setting data.
- - - -
"Press "Clear" and "Alarm" button simultaneously to initate battery check
The flashing battery symbol will also go out after the next midnight reset.
2010 - Having called some
roofers to make a repair and seeing them on the steep
slope of my roof
it occurred to me that they were the ideal people it
tripod. Much safer than me trying to climb up there.
See photo at top of page for the wind speed and direction plus tipping bucket rain gauge.
This is the old model (= good price on eBay) that has the small wind cups and small wind vane so it does not start till the wind speed gets to say 5 MPH. I can see tree branches moving in a light wind without an indication on the control.
The controls are not intuitive. That's to say you need the owners manual nearby to do anything.
|WSF-10049 RJ-12 to DB-9
Cable is required to connect to PC.
The cable is made up of two parts:
* DB-9f to RJ-12 adapter (154-0966F)
* 15' RJ-12 cable (6P6C)
|I tried both of these
and neither one works very well.
Note: It later turned out that the problem may have been because I was using a USB-RS-232 converter. When I make a direct RS-232 connection Virtual Weather Station works, and I lik it enough to buy, so
have not gone back and tried the two programs that did not work with the converter.
|To go with the cable PC
Weather-Display - would not work
Weather View32 - displays unstable
Station - can operate with the Ultimeter 2100 in
loggingh mode or Complete Record Mode. Was having
what may be
communications problems while in Complete Record Mode so
to the much shorted data of the Logging Mode.
2010 - the trial version of Weather-Display only partially
No barometric pressure and the other readings look
related to getting both the 2100 in the correct mode (Data
Packet, Complete Record or Modem) as well as the settings
in the setup
panel of W-D.
Using Hyperterminal (2400-8-N-1) you can see the 40 character total Data Logging mode data or the 452 Character total Complete Record Mode data.
The problem was the Serial-USB converter. Connecting the weather station directly to the computer COM 2 port solved the problem
|VWS weg pages:
wx.htm this looks like the screen I see on the computer
|7 Nov 2010 - The rain gauge
or may not be working. It's raining, but the 2100
0.00in. Have a jar outside to see if there's more
than 0.01" of
Bucket Rain Gauge
||The problem is at the left
the red socket. The idea was to just plug in the
wire leads from
the reed switch and 100 Ohm resistor to make an electrical
connection. BUT, the clear potting wicked into the
insulated the two wires making the rain gauge non
When you tip the bucker you can hear the reed switch open/close.
|Fixed Ultimeter Tipping
||The fix was to solder the
2 cups of water = 0.32"
500 ml of water = 0.33"
Tipping Bucket Rain Gauge TheoryI.D. of funnel = 8.073" (for 0.01" TB rain gauge)
Area of funnel = 51.187 sq in
1" of rain looks like 51.187 cu in. The funnel size determines the multiplication factor, so the same bucket can be used in different gauges.
0.01" of rain looks like 0.51187 cu in
2 cups = 28.875 cu in
28.875cu in / 0.51187 cu in = 56.41 tips
The rain gauge counts each time the bucket changes position, i.e. twice per cycle.
The Peet Bros page says 9 to 11 cc per tip. 10 cc = 0.61 cu in which is off from 0.511 cu in. Why?
So with 500 ml should count 50 (45 to 55) tips. The funnel slows down the water so how fast it rains should not effect this result.
6 Jan 2011 Frozen Waterin Rain Catching Jar outdoor temp 30 F
page created 27 Mar 2010.