8.1 Sensors and measuring instruments
Sensors
The product range includes high-precision platinum temperature sensors, flatscrew
sensors, outdoor temperature sensors, indoor temperature sensors, cylindrical clip-
on sensors, also as complete sensors with immersion sleeve.
Overvoltage protection device
In order to avoid overvoltage damage at collector sensors (e.g. caused by local light-
ning storms), we recommend installing the RESOL SP10 Overvoltage protection.
8.2 VBus
®
accessories
SD3 Smart Display / GA3 Large Display
The RESOL SD3 Smart Display is designed for simple connection to RESOL con-
trollers via the RESOL VBus
®
. It is used for visualising data issued by the controller:
collector temperature, store temperature and energy yield of the solar thermal sys-
tem. The use of high-efficiency LEDs and filter glass assures a high optical brilliance.
An additional power supply is not required. One module is required per controller.
The GA3 is a completely mounted large display module for visualisation of collec-
tor- and store temperatures as well as the heat quantity yield of the solar system via
one 6-digit and two 4-digit 7-segment displays. An easy connection to all controllers
with a RESOL VBus
®
is possible. The front plate is made of antireflective filterglass
and is printed with a light-resistant UV-lacquering. The universal RESOL VBus
®
al-
lows the parallel connection of 8 large displays as well as additional VBus
®
modules.
AM1 Alarm Module
The AM1 Alarm Module is designed to signal system failures. It is to be connected
to the VBus
®
of the controller and issues an optical signal via the red LED if a failure
has occurred. The AM1 also has a relay output, which can e. g. be connected to a
building management system (BMS). Thus, a collective error message can be issued
in the case of a system failure.
DL2 Datalogger
This additional module enables the acquisition and storage of large amounts of data
(such as measuring and balance values of the solar system) over a long period of
time. The DL2 can be configured and read-out with a standard Internet browser
via its integrated web interface. For transmission of the data stored in the internal
memory of the DL2 to a PC, an SD card can be used. The DL2 is appropriate for all
controllers with RESOL VBus
®
. It can be connected directly to a PC or router for
remote access and thus enables comfortable system monitoring for yield monitor-
ing or for diagnostics of faults.
8.3 Interface adapters
VBus
®
/ USB & VBus
®
/ LAN & VBus
®
/ PWM interface adapters
The VBus
®
/ USB interface adapter is the interface between the controller and a
personal computer. With its standard mini-USB port it enables a fast transmission of
system data for processing, visualising and archiving data via the VBus
®
. The RESOL
ServiceCenter software is included.
The VBus
®
/ LAN interface adapter is designed for the direct connection of the con-
troller to a PC or router. It enables easy access to the controller via the local net-
work of the owner. Controller access and data charting can be effected from every
workstation of the network by means of the RESOL ServiceCenter Software. The
VBus
®
/ LAN interface adapter is suitable for all controllers equipped with a RESOL
VBus
®
. The RESOL ServiceCenter software is included.
The VBus
®
/ PWM interface adapter enables the speed control of a high-efficiency
pump via a PWM or 0-10 V signal. The adapter receives speed information of the
controller via the VBus
®
. The speed will be transformed into a PWM or direct-cur-
rent voltage signal and distributed to corresponding terminals.
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