Oregon EMR899HGN User Manual

MULTI-CHANNEL IN-OUT

CABLE FREE

THERMO-HYGROMETER

MODEL : EMR899HGN

User Manual

INTRODUCTION

Congratulations on your purchase of the Multi-Channel In-Out
Thermometer / Hygrometer (EMR899HGN) with a 433MHz cable­free thermo-hygro sensor.

Enclosed with this package is one (1) main display unit and one (1)
cable-free remote thermo-hygro sensor unit.

The main unit has an extra-large multifunction 2-line LCD that
shows recordings for indoor and outdoor temperatures, humidity,
maximum and minimum recordings and trend indicators. The unit
supports up to three 433MHz remote thermo-sensors or thermo­hygro sensors. A variety of additional sensors can be purchased
separately.

In addition to monitoring maximum and minimum temperature and
humidity readings, the unit also has an alarm that can be set to
activate once readings exceed a given variance.

No wire installation is required between the main and remote units.
As the EMR899HGN operates at 433MHz, it can be used in the U.S.
and most places in Continental Europe.

FEATURES: MAIN UNIT

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A Extra large two-line Liquid Crystal Display (LCD)

Multifunction display showing temperature and humidity,
max./min. memory, and trend indicators for the main unit and
remote sensors.

B CHANNEL button

- Selects among different channels

- Activates remote sensor scanning mode

C IN/REMOTE

- Selects between the main-unit display and a selected

remote unit

- Activates search mode

D MEM/CLEAR button

- Recalls the maximum or minimum temperature and

humidity readings

- Clears the maximum and minimum temperature and
humidity memory of remote sensor channels or the main

unit display

E HI/LO button

- Set the upper or lower temperature alarm limits of

individual channels

- Confirms alarm settings
button

F

Sets the readings for the upper or lower temperature and
humidity of individual channels

G AL ON/OFF button

Activates or deactivates alarm

H RESET

Returns all settings to default values and erases all memories

°C/°F slide switch

I

Selects between degree Centigrade (°C) and Fahrenheit (°F)

J Battery compartment

Accommodates two AA-size batteries

K Retractable table stand

For standing the main unit on a flat surface

L Recessed Wall-mount hole

For mounting the main unit on a wall

FEATURES: REMOTE

THERMO-HYGRO SENSOR

A Two-line LCD

Displays the current temperature and humidity monitored by
the remote unit

B LED indicator

Flashes when the remote unit transmits a reading

°C/°F slide switch

C

Selects between Centigrade (°C) and Fahrenheit (°F)

D Channel slide switch

Designates the remote unit Channel 1, Channel 2 or
Channel 3

E RESET

Returns all settings to default values

F Battery compartment

Accommodates two AAA-size batteries

G Battery door

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H Wall-mount holder

Supports the remote unit in wall-mounting

I Removable table stand

For standing the remote unit on a flat surface

BEFORE YOU BEGIN

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To ensure proper functioning of the EMR899HGN follow this setup
procedure.

For best operation:

1. Assign different channels to different remote units.

2. Insert batteries for remote units before doing so for the main unit
(see instructions for battery installation).

3. Place the main unit as close as possible next to the remote unit,
reset the main unit after installing batteries. This will ensure
easier synchronization between the transmission and reception
of signals.

4. Position the remote unit and main unit within effective transmis­sion range, which, in usual circumstances, is 20 to 30 meters.

Note that the effective range is vastly affected by the building
materials and where the main and remote units are positioned.
Try various set-ups for best result.

Though the remote units are weather proof, they should be placed
away from direct sunlight, rain or snow.

BATTERY AND CHANNEL

INSTALLATION: REMOTE UNIT

The remote thermo-hygro sensor unit uses two (2) UM-4 or “AAA”
size alkaline batteries.

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Follow these steps to install / replace batteries:

1. Remove the screws on the battery compartment.

2. Select the channel number on the CHANNEL slide switch.

3. Select the temperature display unit on the °C/°F slide switch.

4. Insert the batteries strictly according to the polarities shown
therein.

5. Replace the battery compartment door and secure its screws.

Replace the batteries when the low-battery indicator of the particular
channel lights up on the main unit. (Repeat the steps described in
section “BEFORE YOU BEGIN”)

Note that once a channel is assigned to a remote unit, you can
only change it by removing the batteries or resetting the unit.

BATTERY INSTALLATION: MAIN UNIT

The main unit uses two (2) UM-3 or “AA” size alkaline batteries.

Follow these steps to install / replace batteries:

1. Slide open the battery compartment door.

2. Insert the batteries strictly according to the polarities shown
therein.

3. Replace the battery compartment door.

Replace the batteries when the low-battery indicator of the indoors
temperature lights up. (Repeat the steps described in section
“BEFORE YOU BEGIN”)

If not disposed of properly, batteries can be harmful.
Protect the environment by taking exhausted batteries
ot authorized disposal stations.

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GETTING STARTED

Once batteries are placed in a given remote sensor unit, it will start
transmitting information at 40-second intervals.

Also, for approximately a 3-minute duration, the main unit will
automatically search for signals once batteries are installed. Upon
successful reception, the individual channel temperature reading
will be displayed on the top line and the respective humidity reading
on the bottom line. The main unit will automatically update its
readings at about 40-second intervals.

If no signals are received, blanks “ --- ” will be displayed and the
kinetic wave icon will not show.

To force a signal search:

• Press and hold IN/REMOTE for 2-seconds to enforce a

3-minute search.

This is useful in synchronizing the transmission and reception of the
remote and main units.

Repeat this step whenever you find discrepancies between the
reading shown on the main unit and that on the respective remote
unit.

Kinetic-wave

Icon

Designated Indoor

Display Display

To display temperature / humidity readings from the main unit:

• Press IN / REMOTE until a dot is displayed in the box under the
kinetic-wave.

To display temperature / humidity readings from a remote
sensor:

• Press CHANNEL until the appropriate remote sensor channel is
displayed in the box under the kinetic-wave.

If no readings are received form one particular channel for more than
15 minutes, blanks “ --- ” will be displayed until further readings are
successfully searched. Check the remote sensor to ensure that it is
secure and that the correct channel has been selected. Optionally,
press and hold IN/REMOTE for 2-seconds to enforce a search.

Remote Remote Remote
Display Display Display

Channel One Channel Two Channel Three

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HOW TO CHECK REMOTE AND

INDOORS TEMPERATURES

Display of readings from a remote sensor or the main unit is a one­step procedure. The remote sensor channel or the main unit display
is indicated in a box under the kinetic-wave icon.

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HOW TO READ

THE KINETIC-WAVE DISPLAY

The kinetic-wave display shows the signal-receiving status of the
main unit. There are three possible forms:

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