OUMAN WL-Base Bedienungsanleitung

Wireless sensor system

= Base station

= Routing wireless sensor

= Wireless sensor

22°22°22°

General description

The wireless Ouman sensor system

enables a quick and easy reading of

precise room temperature data in a

building without the laborious laying of

cables and drilling of walls. The sensor

system comprises a base station, sen-

sors that act as routers and are con-

nected to the mains, and battery-op-

erated wireless sensors. A predeﬁned

the wireless sensors to a SCADA sys-

tem. In the event of failure, a damaged

sensor can be replaced without chang-

ing the register list. This makes the

installation of the replacement sensor

quicker and easier.

The mesh structure of the wireless network improves network reliability. The signal has multiple routes, from

which the system automatically selects the strongest. The larger the number of routers in the coverage area,

the more routing options the signal has. One wireless base station can monitor data from up to 100 sensors.

GW Internet

connection

Internet / Ounet

PC in internal network

Initial engineering in network construction:

• Building structures are crucial in network engineering. Metal structures weaken the signal, which is also the case for

lift wells, electrical power centres, ﬁre doors, etc.

• Old concrete buildings are easier in regard to networks than buildings constructed in the 2010s, where the amount

of steel in the structures is higher.

• From the base station, the network should be built by ﬁrst ﬁnding a suitable “backbone” for the network and applying

the operating voltage to the sensors, so that they will act as routing elements in the network. See FIGURE 1.

• Once the network is operational in this regard, battery-operated sensors are placed as part of the network.

• The positioning of room sensors must take into account that the sensor should never be exposed to direct sunlight.

It must also be ensured that no other external sources of heat aect the sensor, such as refrigerators, television sets,

ventilation windows, water radiators, etc.

• It is often the easiest way to place the base station to the same space with the automation substation (heat distribu-

tion room, AHU room), but due to the weak 3G signal the optimal location can also be in the other parts of the build-

ing. Centrally selected location for the base station can improve the functionality of the sensor network, because

more sensors can be directly connected to the base station without routers.

• It is able to select external antenna to the base station which improves reception of the sensor network when need-

ed to achieve better signal levels.

• The base station requires a separate housing, e.g. K118 which also includes the needed power supply. (must be ap-

plied when certain IP protection class is needed)

FIGURE 1 structure of wireless sensor network

Base station connections:

– Direct connection to base station with browser. (over the Internet/locally)

– Ounet connection directly from the base station. (over the Internet)

– local Modbus RTU connection.

(Connections can be utilised simultaneously)

Commissioning the wireless network through the Internet connection

Base station 1. First install the base station.

2. Connect the antenna (or the extra antenna with an extension

cord) to the antenna connection of the base station. Do not detach

or attach the antenna when the base station is live!

3. Connect the Ethernet cable between the base station's RJ45

connector and the Internet connection (router/3G modem).

4. Switch on the operating voltage. The voltage is connected to the

terminal strip and ground to the adjacent connector.

5. Wait for the LINK light to remain green. This may take a couple of

minutes.

6. When the LINK light remains green, the base station has suc-

cessfully been connected to the Ouman ACCESS network.

7. If you have a QR reader, read the QR code of the base station

label. In other case, enter the label’s website address in your Web

browser.

8. Perform base station login. The default password is indicated in

the label on the side of the base station. Username = service

9. Upon your ﬁrst login, the system proposes that the password be

changed. We recommend that you do that. If you do not change the

password, the default password will remain (each base station has

a unique password).

In addition, you can specify a user password in the base station; the

user password only entitles you to view measurement data. User-

name = user, password = Wireless

10. Switch on installation mode in the user interface. The RF status

of the base station is green (see p. 6 Web UI Figure 2, Section 4.)

11. It takes about one minute for the installation mode to be activat-

ed. After that, the mode will remain active for 90 minutes, unless

you interrupt it in the user interface (you can adjust the default

time in the base station settings).

12. Go to “sensor commissioning” (p. 4).

A B

Installation

Base station The base station is mounted to a wall or to the centre with a DIN bar.

In the centre installation, the base station requires an external an-

tenna. The base station must be installed indoors (0°C...+50°C).

The base station can be connected to Ounet, or independently to the

Internet, in which case, measurement data can be inspected from

outside the property through a remote connection. If the property

already has an Internet connection, you can use it. If there is no In-

ternet connection ready, we recommend you use the 3G connection

provided by Ouman.

The base station can also be directly connected to the computer in

the local internal network, and as part of the rest of the automation

system through the modbus RTU route.

Temperature sensor / routing temperature sensor:

Rooms sensors can be mounted to the wall with screws or adhesive

tape. Please note that the sensor is installed so that the black termi-

nal strips are in the bottom left corner 1.

Place the room sensor at a height of about 150 cm in a location

where it measures the average temperature of the room. Do not in-

stall the room sensor in a location where direct sunlight or another

source of heat may distort the measurement result.

The room sensor must be installed indoors (0°C ... +50°C). External

temperature measuring, digital input or transmitter measurement

(see page 5) can be connected to the sensor by using the room sen-

sor’s AUX connection

PLEASE NOTE: When connected to an external power source (5

VDC), the room sensor is a routing room sensor, but when equipped

with AA batteries, it acts as a room sensor. The room sensor will au-

tomatically recognise the power source.

Base station signal light legend

INIT / ERR

Red light is on

Blinking green light

Upon start-up, the light will be red for about 30 seconds.

The light is green and blinking when the base station is active.

LINK

Yellow light on

The light is almost continuously on,

but is o at times.

The light is o most of the time, but

blinks at times.

No light

The light is on when the connections are in order (both the In-

ternet connection and the ACCESS connection are operational)

Internet connection is operational, but there is no ACCESS con-

nection

LAN connection is operational, but there is no Internet and AC-

CESS connection.

No LAN connection.

If the LINK LED is not blinking or is not on at all, check that the

LAN cable is properly connected to the base station and router.

The signal lights of the base station's Ethernet connector are on

if the network cable is physically in order and connected.

RF STATUS

Green light on

Blinking green light

The base station is in installation mode

The base station is in normal mode

A B

Commissioning the wireless base station without the Web browser interface

1. Connect the antenna (or the extra antenna with an extension

cord) to the antenna connection of the base station. Do not de-

tach or attach the antenna when the base station is live!

2. Switch on the operating voltage. The voltage is connected to

the terminal strip and ground to the adjacent connector.

3. Press the base station's installation mode button.

4. Check that the RF-Status light of the base station is on. When

the light is green, the commissioning mode is active.

5. Go to “sensor commissioning” (p. 4).

Room sensor battery replacement The Web UI shows the remaining battery life of each wireless

sensor. If life is less than 10%, the ﬁgure is red, and there is a red

exclamation mark in the right upper corner of the user interface.

Battery replacement does not require any special measures. You

only need to replace batteries with fresh ones. The sensor is au-

tomatically connected to the network, and continues to operate

as usual.

Commissioning the sensors

1. Commission the base station before commissioning the sen-

sors (see pp. 2–3).

2. Open the room sensor's cover and install the batteries or

switch on the operating voltage if you intend to make the sen-

sor a routing sensor. Do not put batteries in the sensor if you

apply the operating voltage to the sensor!

3. The LEDs indicate the network status when the batteries are

connected or when the operating voltage is applied:

In commissioning mode:

Rapidly blinking green light = Connected to network

Red light blinking 2 times = Connection failure

When the button is pressed in normal mode:

Green light on (3 s.) = Connected to network

Red light blinking 2 times = Not connected to network

4. If neither LED is blinking rapidly, brieﬂy press the sensor in-

stallation button.

5. If the network is not found, move closer to the base station or

the already installed routing sensor.

6. You can remove the sensor from the network by keeping the

installation button pressed down for ﬁve seconds. (You also

need to separately remove the sensor from the user interface).

(see p. 6)

Sensor conﬁguration

1. When the sensor has found the network, it will automatically

appear last in the user interface list (or in place of a sensor re-

moved from the list).

2. You can edit the default name (SensorX) of the added sensor

to match the location. Example: Room 101 (see p. 6 Web UI, Fig-

ure 2)

3. In the sensor route table, you can see how the added sensor

is connected to the network (see p. 7 Web UI, Figure 3). Please

note: The sensor will automatically ﬁnd its route by the best re-

ception. You cannot change the route manually.

4. Set the failed response alert limit and updating interval for

the base station on a sensor-speciﬁc basis. (see p. 5 Web UI, Fig-

ure 1)

Instructions: You can deﬁne joint maximum and min-

imum limits for all base station sensors. (Default 21°C

and 24°C) Example: if the calculation interval is 10 h

and temperature is 2h of the timeline over the max-

imum limit or under the minimum limit → The perma-

nence value is 80% for the calculated time.

5. Likewise, the calculation interval of the permanence value.

(see p. 5 Web UI, Figure 1)

The RSSI ﬁgure indicates signal strength

Good … -85dBm

Medium: -85 … -95dBm

Poor: -95dBm ...

Pay extra attention to the reception of the rout-

ing sensors, because they are the “backbone” of

the network (see FIGURE 1, p. 1).

AUX connection of wireless room sensor

21 + -

In the wireless sensor or routing sensor, it is possible to connect

an external temperature measurement, digital input, status data

or 0–10 VDC transmitter measurement by using the AUX con-

nection.

AUX connection in temperature measurement 1. Connect temperature measurement in terminal strips 3 and 4

AUX connection as digital input 1. Connect the digital input in terminal strips 3 and 4

AUX connection as transmitter measurement 1. First remove the jumper on the battery side from the sensor's

circuit board

2. Connect the transmitter measurement to terminal strips 2 and

3 (power source's ground )

AUX connection settings from WEB UI:

Web UI, Figure 1

1. Select the type of

AUX input in the drop-

down menu.

2. You can name the input

as you like. The name will

appear in the AUX connec-

tion tooltip in the Web UI.

Setting the stability inter-

val for the sensor's perma-

nence value (see p. 5).

Usually, you do not need to adjust other settings.

Reception alert will be

indicated with a red

exclamation mark in

the right upper corner

of the Web UI.

4. You can also enter

the installation mode

through the Web UI

by clicking this icon.

To exit the installation

mode, click the icon. Or,

if you do not do that, an

automatic exit will take

place after 90 minutes.

2. Select “Edit location”

to rename the sensor

location.

3. Enter a new, unique

name for the sensor

location.

1. Click the icon with

three dots, and the func-

tion menu will open.

Web UI, Figure 2

Web UI, Figure 3

Base station conﬁguration

OK button – In the installation mode, the sensor sampling interval is 10 seconds by default. When there are 15 or more

sensors in “join mode”, the sampling interval will slow down the device. When you press “OK”, the sensor’s sampling inter-

val will change to two minutes, which will accelerate the device.

If you do not change the sampling interval in the install mode, it will automatically change to 15 minutes when you exit

the install mode. The minimum sampling interval is one minute.

Base station sensor settings

Selections of average calculation

Go to the “Sensor selection” tab or the sensor-speciﬁc settings to select the measurements to be included in the calculation.

Avg calculation time span: The calculation can be performed as sliding for a speciﬁc period. If the value is 0, the value is an “on-

line” value.

Normal: Will calculate the average of all sensors included in the calculation

Min – max limited: In the calculation, this function removes measurements not in the minimum and maximum range

Pick out mode: This function removes the selected number of measurements from the calculation. Example: The two lowest tem-

peratures and the highest temperature.

Min - max and pick out combination” A combined selection of the above. The program will ﬁrst perform the selection and then the

limiting process.

Base station conﬁguration

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