Minder Research MRI-823MXC Quick Start Gude

TempMinder® MRI-823MXC Wireless Weather Station

Congratulations on having purchased (or received) this fine MRI-823MXC TempMinder®. If you
have any questions or concerns, feel free to contact us at any time (information below). These
instructions are purposely non-technical (written by Minder’s “non-engineering” staff
members only).

Specifications:

- Remote Temperature Range: -40°C to + 60°C (-40°F to +140°F)

- Remote transmission Distance: Max 100 meters (327 ft.)

- Temperature Accuracy: +/- 1°C /2.0°F (If above freezing)

- Humidity Range: 20% to 99%

- Humidity Accuracy: +/- 5% (at 25C/77F between 30% & 80%)

- Barometric Pressure Display: inHg or hPa

- Power Supply: 3 “AAA” + 2 “AA” Batteries (not incl.)

Or 4.5v AC/DC adaptor (incl.) +2 “AA” batteries (not incl.)

- RCC Auto Set Clock w/5.5 zones (PST/MST/CST/EST/AST/NST)

Functions:

 12 to 24hr weather forecast based on barometric pressure changes
 Temperatures in C or F with trend arrows
 Remote temp and humidity from up to 3 locations (2 are optional)
 One RS-MX remote transmitter included
 Indoor Temperature & Humidity
 12/24 hr auto setting (atomic) clock w/alarm/snooze
 RCC Clock has 5.5 time zones (see Auto Setting clock for details)
 Auto Daylight Savings on/off selectable
 Low Battery icons for remotes and receiver
 4.5V AC/DC adaptor included
 4 Moon Phases

 KNOW YOUR TempMinder® MRI-823MXC CONTROLS!!!

Receiver Rear

o “SET” used to manually set time zone, DST, 12/24hr, time, date and pressure units.
o “ALM” used to set alarm times + alarm on/off.
o “UP&C/F” used to increase units in manual mode or select C or F.
o “DOWN&CH” used to decrease units in manual mode or change remote channels

Receiver Top

“SNZ/LIGHT” used for 10 minute snooze or dim backlight (with A/C power).

Quick Note for “Button Pushers”:

If you have not read the following instructions, plugged in the receiver and started pushing buttons, you may
find that none of them are working.

That is because the unit is searching for a time and date signal from Colorado ( icon is flashing)!
This will go on for two minutes. While it does, you may as well go to the end of these instructions and read the

part “Nothing Works ??!!” in the Miscellaneous Information/Hints section.

 Operating Directions (Powering up):

 Remove the static overlay on the receiver (if you don’t, the numbers will never change – ha!!!)
 Remove the battery compartment door from the RS-MX remote transmitter. Press “in” and push “down” on the

remote rear cover. It should slide off easily. If you have additional remote transmitters, open these as well. DO
NOT INSTALL THE BATTERIES YET!

 Plug in the 4.5v AC/DC adaptor in the rear of the receiver. It will now search for remote signals for 3 minutes. If

you have not plugged it into a wall outlet, you may do so now.

 Insert 2 “AA” alkaline batteries in the first RS-MX remote transmitter. The temperature will appear on the upper

half of the screen and humidity on the lower half. “CH 1” will appear just to the left of the humidity number.

If/when you add a second and/or third remote, press the “CH” button inside the battery compartment to
choose either channels 2 or 3. You will probably need a magnifying glass if you really need to see “CH2” or
“CH3”. Suffice it to say, “CH1” is at the top left corner of the Humidity number, “CH2” is in the middle and “CH3”

is in the lower left.

 Remember, you have three minutes to set up all the transmitters. Note: press and release the UP/C-F button to

change the units of measure. This will not work if the unit is searching for the Time signal from Colorado.

 So, you now have two temperature and humidity readings showing on the receiver (in and out). If you have

installed more than one transmitter, press and release the Down/CH button to scroll through the other
channels. Please understand that at this point even though the receiver and the remote are close together, the
temperatures will not match exactly. Due to electronic tolerances, it could take up to 48 hours for them to come
within 1°C (2°F). Don’t bother waiting (there is no point). You may relocate the RS-MX at any time. For location
hints, see “Locating the Remote” at the end of these instructions.

 If you are adding a second or third RS-MX transmitter at a LATER DATE, install the batteries and set the channel

(on the remote) to either channel 2 or 3. On the receiver, press and hold the “Channel” button for 2 seconds. A
small scrolling icon will flash to the right of the word “OUTDOOR”. All remote information will be cleared and
the TempMinder® will search for new information. You should see this new remote information within 3
minutes. Press the channel button (on the receiver) to scroll through all active transmitters.

TempMinder® exclusive 5.5 time zones

Setting the Date & Time Method A

Auto Setting (RCC Atomic) Clock

The MRI-823MXC has an auto setting clock capable of adjusting to 5.5 North American time zones.

“PST” Pacific Standard Time (GMT-8)
“MST” Mountain Standard Time (GMT-7)
“CST” Central Standard Time (GMT-6)
“EST” Eastern Standard Time (GMT-5)
“AST” Atlantic Standard Time (GMT-4)
“NST” Newfoundland Standard Time (GMT-3.5 half hour!!!!).

This TempMinder® is equipped to receive a radio wave signal (RCC) from the WWVB radio station located in Boulder
Colorado USA. This signal covers most of North America. Unfortunately there are some distant areas which it does not
reach. These include Alaska, Yukon, Northwest Territories and Hawaii. In the past, areas such as Maine, Labrador,
Newfoundland as well as parts of Quebec, New Brunswick, Nova Scotia and PEI were also out of range. Recently we at
Minder Research have been notified of atomic signals being received as far away (from Colorado) as Nova Scotia
Canada.