Elsys ERS, ERS-lite, ERS-CO2, ERS-Sound Operating Manual

OPERATING MANUAL ERS

OPERATING MANUAL

Elsys Room Sensor. ERS, ERS-lite, ERS-CO

2,

ERS-Sound

Content

Description ........................... 2

Installation ............................ 3

Sensor configuration ............ 5

Sensor application ................ 8

Motion detector ................... 11

Specification ........................ 13

Regulations ......................... 14

OPERATING MANUAL ERS

www.elsys.se 2

[e-mail]

Description

Elsys room sensor (ERS) is a universal indoor climate sensor
for LoRaWAN™ wireless network. The sensor measures
temperature, humidity, light intensity*, Co2*, sound level and
detects motion*. Elsys room sensor is a battery powered

device and designed to be instal led qu ickly and easily. The
motion sensor can be used for presence monitoring systems.
All Elsys sensors are equipped with NFC (Near Field

Communication) and can be easily configured from a
smartphone.

Main features of Elsys Room Sensor

• Compatible with LoRaWAN™ specification

• Measures ambient temperature

• Measures ambient humidity

• Measures ambient Co2

• Measures light intensity

• Detects motion using a passive IR sensor

• Measures sound level

• Easy installation

• Easy configuration

• May be installed on wall or any surfac e

• Battery powered

• Long range

• Configurable over NFC

• Configurable over the air

• 10 years batty life**

• Supports US902-928, EU863-870, AS923, AU915-

928, KR920-923

* Depends on ERS model (ERS-light, ERS, ERS-Co2, ERS-Sound).
** Depending on interval

OPERATING MANUAL ERS

www.elsys.se 3

[e-mail]

Installation

1. Remove the back panel of the sensor with a small
screwdriver.

2. Install the batteries. The ERS requires one or two AA
batteries. The battery type is 3.6V Lithium Battery
(ER14505). You can use one battery. For the ERS­CO

2

and ERS-Sound we recommend two batteries to
get maximum operation time. Use battery slot A if only
one battery is used.

OPERATING MANUAL ERS

www.elsys.se 4

[e-mail]

3. Mount the pack panel on the wall using some of the
six mounting holes.

4. Attach the sensor part to the back panel.

I

CAUTION

Using batteries other than specified may result in explosion.
Dispose of properly, observ ing environmental protection rules.

OPERATING MANUAL ERS

www.elsys.se 5

[e-mail]

Sensor configuration

All sensor settings can be configured via smartphone and
Android application with NFC (Near field communication) or
over the air via the network server and downlink data to the
sensor. Sampling rate, spreading factor, encryption keys, port
and modes can be changed. All sensor settings can be locked
from the server or NFC and end users cannot read or change
settings on the sensor.

Android application

1. Download Elsys “Sensor Settings” application from
Google Play Store and install it on an Android
smartphone or tablet. The device must support NFC.

2. Enable NFC on the device and start the application.

3. Place your Android device on top of the NFC antenna
on the sensor.

4. Remove the Android device from the sensor when the
data has been updated.

5. See the help in the application for more information

OPERATING MANUAL ERS

www.elsys.se 6

[e-mail]

Sensor settings parameter’s

SplPer

The main time base for the

sensor. This is the interval
for the sensor to wake up

and sample data.

PirCfg

Configuration for the motion

detector.
Off: PIR sensor is off

Trigger: Sensor sends

package on motion
Count: Sensor counts
motions events between two

transmissions

TempPer

Temperature sample period.

Value * Timebase= Sample
time. Most of the time its
easiest to use 1 as period

and only change time base

PirPer

Value * Timebase= PIR
sample time.

SendPer

Value * Timebase= Send
time.

VddPer

Value * Timebase= Voltage
sample time.

LightPer

Value * Timebase= Light
sample time.

AppEui

Application ID (8bytes or 16
hex digits)

AppKey

Application unique key
(16bytes or 32hex digits)

Ota

Join mode, “over the air

activation” or
“personalization”. Valu e:tr u e

or false

DevEui

Unique ID of the sensor

(8bytes or 16 hex digits)

AppSKey

Application session key.

OPERATING MANUAL ERS

www.elsys.se 7

[e-mail]

Application unique session

key(16bytes or 32hex
digits) (this is onl y valid if not

using OTA)

NwkSKey

Network session key.

Network unique session
key(16bytes or 32hex
digits) (this is onl y valid if not

using OTA)

DrDef

Default data rate for the
sensor. DR0–>DR5

DrMax

Minimum data rate for the
sensor. DR0–>DR5.

DrMin

Maximum data rate for the

sensor. DR0–>DR (If
datarate min, max, def is the
same then server can’t

change sensor data rate)

Port

LoRa communication port

Co2Cfg

Calibrate CO2 sensor if

parameter is 1. The sensor

must be in fresh air (outside)

Lock

Locks or unlocks sensor

settings. 0 = unlocked,
anything else will lock the
sensor until the same code is

entered again

Plan

Active cha nn el pla n

Plans

Supported channel
plans(read-only)

Subband

Channel plan subband

(hybrid modes) 0 = 0-7, 1 =

8-15, etc.

Qsize

Sample queue size 0-10

Qoffset

Include offset bytes (0,1)

Qpurge

Purge sent samples from
queue (0,1)

OPERATING MANUAL ERS

www.elsys.se 8

[e-mail]

Sensor application

Sensor startup

When the sensor starts up it loads configuration from the
internal memory and merge it with user configuration. When
the configuration is done the sensor writes the new
configuration to the NFC chip. The sensor always writes new

configurations to the NFC
chip when something
changes in the sensor or if
NFC data is corrupted by a
NFC writer or phone. The
sensor always writes new
configuration to NFC chip at
startup. When configuration
is done the sensor tries to
join the network if OTAA
(Over The Air Activation) is
enabled. The sensor led
flashes orange when it tries
to join a network. The sensor
tries to join the network
every 10 second and
increases the join timer at
every failed attempt by
10%, up to maximum 1 hour.
After startup, configuration
and join the sensor enters
sampling mode.

OPERATING MANUAL ERS

www.elsys.se 9

[e-mail]

NFC read/write

When reading or writing NFC configuration data to the sensor
it starts a timer and delays its action x seconds. It delays its
action because of the bad connection that can be in NFC
communication. Types of bad connection can be distance,
location or rapid movement. After the delay the sensor
determines if the NFC data has changed or not. If the data
has change the sensor reboots and starts from power up.
When writing data to the sensor try to get the best
connectivity as possibly. Locate the NFC antenna of the
phone and sensor. Keep the 2 devices as close as possible
and don’t move them while writing or reading. When you have
written data to the sensor, let the sensor reboot and restart
before trying to write again. You can al wa ys valid ate your
settings by reading the NFC data after the sensor has
restarted.

OPERATING MANUAL ERS

www.elsys.se 10

[e-mail]

Sampling mode

OPERATING MANUAL ERS

www.elsys.se 11

[e-mail]

Motion detector

Detection range

Detection range of the Motion Sensor is shown below. Actual
range of the sensor can be influenced by environmental
conditions. Avoid insta ll ing t he sensor in ar eas wh ere i t will
face direct or reflected sunlight. Avoid installing near windows,
air conditioning or heating vents.

OPERATING MANUAL ERS

www.elsys.se 12

[e-mail]

Detection pattern

Detection pattern of the motion sensor is shown below.

OPERATING MANUAL ERS

www.elsys.se 13

[e-mail]

Specification

Power supply:

3.6V DC

Battery type:

AA 14505

EU directives compliance:

Radio protocol:

LoRaWAN™

Radio frequency band:

US902-928, EU86 3-870,

AS923, AU915-9 28, KR 920 -

923

Range:

8km

(SF10 868Mhz,depending on
terrain and building

structure)

Recommended installation
height:

1.6M
Operating temperature

0-40°C

Temperature range

0-40°C

Temperature resolution

0.1°C

Temperature accuracy

± 0.5°C

Humidity range

0-100%

Humidity resolution

0.1%rh

Humidity accuracy

±2%rh

CO2 range

0 - 2000ppm

CO2 noise

14 ppm @ 400 ppm
25 ppm @ 1000 ppm

CO2 accuracy

±50ppm ±3% of reading

Light range

4-2000 Lux

Light resolution

1 Lux

Light accuracy

±10 Lux

Sound range, mean value

35-70 dBspl

Sound range, peak value

65-99 dBspl

Sound resolution

1 dB

Sound accuracy

+- 5 dB

Dimensions

86x86x28mm

Battery lif e

Up to 10 years (depends on
settings)

OPERATING MANUAL ERS

www.elsys.se 14

[e-mail]

Regulations

Legal Notices

All information, including, but not limited to, information
regarding the features, functionality, and/or other product
specification are subject to change without notice. Elsys
reserves all rights to revise or update its products, software,
or documentation without any obligation to notify any
individual or entity. Elsys and Elsys logo are trademarks of
Elektroniksystem I Umeå AB. All other brands and product
names referred to herein are trademarks of their respective
holders.

Federal Communication Commission
Interference Statement

This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate
radio frequency energ y and , if not installed and used in
accordance with the instructions, may cause harm ful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to
try to correct the interference by one of the following
measures:

-- Reorient or relocate the receiving antenna.

OPERATING MANUAL ERS

www.elsys.se 15

[e-mail]

-- Increase the separation between the equipment and
receiver.

-- Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.

-- Consult the dealer or an experienced ra di o/T V techn ic ian
for help.

Non-modifications Statement:

Any changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate this equipment.

Caution

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including
interference that may cause undesired operation.

This device and its antenna(s) must not be co-located or
operating in conjunction with any other antenna or transmitter
except in accordance with FCC multi-transmitter product
procedures.

Industry Canada Statement

This device complies with Industry Canada license-exempt
RSS standard(s). Operation is subject to the following two
conditions:

(1) this device may not cause interference, and

OPERATING MANUAL ERS

www.elsys.se 16

[e-mail]

(2) this device must accept any interference, including
interference that may cause undesired operation of the
device.

Declaration of conformity

Hereby, Elektroniksystem I Umeå AB declares that Elsys
Room Sensor is in compliance with the essential
requirements and other relevant provisions of Directive
1999/5/EC.

V3 2018-04-10