Grundfos SCALA1 Quick setup guide

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
1
SCALA1 Module Integration Guide
Contents
SCALA1 Module Integration Guide 1
Introduction 2
Purpose 2
Use conditions 2
Module Description 2
Module Integration 4
Host product exploded view 4
Module placement in Host product 4
Antenna placement in Host product 5
GND considerations in Host product 5
RF exposure considerations of Host product 5
Other considerations 5
Host manual considerations 6
Regulation information 7
Module identification 7
Module label 7
FCC 7
FCC Rules 7
FCC ID 7
ISED Canada 7
ISED RSSs 7
ISED IC 8
Host product Labelling instructions 8
Contains 8
Disclaimer US English 8
Disclaimer Canadian French 8

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
2
Introduction
The module allows wireless control of the SCALA1 host product
Purpose
The module is the user interface (UI) of the host product via Bluetooth Low Energy (BLE). The
module communicated with a smartphone with a “Grundfos Go” app installed.
Use conditions
The SCALA1 module may only be used inside a Grundfos host product.
The host product must provide an IP X4 or better enclosure to keep ingress of water away from
the module.
Module Description
The module is self-contained with buffered in- and output, regulated voltage, onboard integrated
antenna, RF shielding of the radio parts (except antenna).
•Voltage supply is: 115 Vac, 60 Hz
oInternally regulated Vss: 3 – 8 Vdc, nominel 5 Vdc
•Current draw Vss is: 250 mA max, 60 mA nominel
•Temperature range is: 0 – 55 degrees Celcius
•Communication, wired RS-485 115 kBaud
•Radio air interface BLE – Bluetooth Low Energy
oFrequency Band: 2.4 GHz ISM
oFrequency of Operation:2400 – 2483.5 MHz
oAntenna Gain: 0 dBi (Integrated F-type antenna)
oType of Modulation: GFSK
oEmission Designation : F1D / G1D
oTransmit Power (EIRP): 5 ±0.1 dBm
oBandwidth: 1 MHz
oChannel Spacing: 2 MHz
oBluetooth Version: 4.2
The module complies to all 8 requirements of the FCC modular approval rules:
•Requirement
•Compliance:
Yes or No along with a justification
•The radio elements must have the
radio frequency circuitry shielded.
Physical components and tuning
capacitor(s) may be located
external to the shield, but must be
on the module assembly
•Yes.
•Physical shield box covers all RF parts
except the F-antenna.
•Peripheral interface parts are not
shielded
•The module must have buffered
modulation/data inputs to ensure
that the device will comply with
Part 15 requirements with any type
of input signal
•Yes.
•The transceiver has buffered data
input / output ports.

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
3
•The module must contain power
supply regulation on the module
•Yes.
•
Module contains a voltage regulation
•The module must contain a
permanently attached antenna, or
contain a unique antenna
connector, and be marketed and
operated only with specific
antenna(s), per Sections 15.203,
15.204(b), 15.204(c), 15.212(a),
2.929(b)
•Yes.
•External to the shield, the Printed
Circuit Board has a “F-type” antenna,
solderconnected to the matching
network
•The module must demonstrate
compliance in a stand-alone
configuration
•Yes.
•Module is to be part of a host product.
It is listed in standalone configuration,
with only power and data (USB) supply
leads
•The module must be labelled with
its permanently affixed FCC ID
label, or use an electronic display
(See KDB Publication 784748 about
labelling requirements)
•Yes.
•Label is affixed to RF shield box
•The module must comply with all
specific rules applicable to the
transmitter including all the
conditions provided in the
integration instructions by the
grantee
•Yes.
•
•The module must comply with RF
exposure requirements
•Yes.
•Bluetooth module is Bluetooth Low
Energy (BTLE) and will not have enough
power to exceed SAR limits. It is also to
be mounted >20 cm from any
bodyparts.

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
4
Module Integration
Host product exploded view
Module placement in Host product
The module must be placed in a location where there are no metal or conductive parts between
the radio module and the user.

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
5
Antenna placement in Host product
The module has a PCB trace “F” antenna with 0 dBi gain in the max. direction.
The antenna is located outside the RF shield of the module and must be kept free of conductive
parts and wires.
The PCB antenna is located under the silkscreen text “BLE ANT” on the PCB component side and is
visible on the non-component side of the module PCB
GND considerations in Host product
The module antenna uses the GND plane of the module and is not dependant of the host GND
plane construction.
RF exposure considerations of Host product
Because the radiated power (EIRP) is 0 dBm and only the integrated antenna can be used, the
host product cannot radiate dangerous amounts of RF energy that can be absorbed by the user.
The host is “mobile” and must be more than 20 cm from the users head and body at all times
Other considerations
This module may not be co-located with other transmitters or transmit simultaneously with radios
within 20 cm.

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
6
Host manual considerations
The host manual must contain instructions that the user may not be closer than 20 cm from the
RF parts of the module.

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
7
Regulation information
The SCALA1 module is marked with “MODEL: SCALA1”, manufacturer name and labelled with FCC
ID and ISED IC.
Module identification
The Radio module is a monolithic PCB with the module label affixed
Module label
The module label contains the following information
•FCC ID: OG3-SCALA1
•IC: 10447A-SCALA1
•MODEL: SCALA1
•GRUNDFOS HOLDING A/S
FCC
It is the responsibility of the host product manufacturer to ensure continued compliance against
FCC Part 15B.
FCC Rules
FCC rule parts 15.247, 15.209, 15.207
FCC ID
OG3-SCALA1
ISED Canada
ISED RSSs
•RSS-247 Issue 2

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
8
•RSS-102 Issue 5
•RSS-Gen Issue 5
ISED IC
10447A-SCALA1
Host product Labelling instructions
The host must contain the following information in a conspicuous location
Contains
Contains FCC ID : OG3-SCALA1
Contains IC: 10447A-SCALA1
Disclaimer US English
The disclaimer may be placed in the manual and must contain the text:
“This equipment complies with FCC and ISED radiation exposure limits set forth for an
uncontrolled environment. This equipment must be installed and operated with a minimum
distance of 20 cm (7.87 inches) between the radiator and your body. This transmitter must not be
co-located or operated in conjunction with any other antenna or transmitter.
This device complies with Part 15 of the FCC Rules and with Innovation, Science and Economic
Development Canada’s licence-exempt RSS(s). 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.
Changes or modifications made to this equipment not expressly approved by Grundfos may void
the FCC & ISED authorization to operate this equipment.”
Disclaimer Canadian French
The disclaimer may be placed in the manual and must contain the text:
“Cet appareil est conforme aux limites FCC et ISED d'exposition aux radiations qui ont été définies
pour un environnement non contrôlé. Cet appareil doit être installé et fonctionner à une distance
d'au moins 20 cm (7.87 in) du radiateur et de votre corps. Il ne doit ni se situer, ni fonctionner
conjointement avec une autre antenne ou un autre émetteur.
Cet appareil est conforme au paragraphe 15 des règlements du FCC et aux CNR d'Industrie Canada
applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux
conditions suivantes:
1. l'appareil ne doit pas produire de brouillage, et
2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.

Grundfos Holding A/S
SCALA1 Module Integration Guide Version 1.0.1
9
Toute modification apportée à cet appareil n'étant pas explicitement approuvée par Grundfos
peut annuler l'autorisation du FCC & ISED à faire fonctionner cet appareil.”