User Manual

4
Smart Infrastructure
A6V11684000_en--_b
2019-10-16
Features description and benefits
Sensor technology
The built-in sensors of the QBM3700.. are based on the unique and in HVAC and automotive
industry well-proven ceramic strain-gauge beam technology.
● The accurate sensors with long-term stability for all measured variables are completely
maintenance free, providing cost savings over the life of the plant.
● The sensor elements are also suited for demanding applications in the food or
pharmaceutical industry.
● The sensor elements are also suited for demanding applications in the food or
pharmaceutical industry. Decentralized node via Modbus (RTU) combined with
inputs/outputs
The QBM3700.. with its Modbus communication interface is a decentralized node, when
using the inputs and outputs for sensors and field devices:
● For example temperature sensors can be linked to the analog inputs and actuators
linked to the analog outputs.
● Having these elements on Modbus reduces wiring and installation costs.
Innovative housing design with quick release fasteners
The housing of the QBM3700.. comes with quick release fasteners, which can be pushed in
by hand, making screws and tools for opening and closing the sensor unnecessary. The
innovative housing design is based on a patented sealing, injected directly during the plastic
injection molding process. A high protection grade of IP54 is guaranteed, providing a wide
range of application areas.
Workflows and "How to instructions" are available in document A6V11841988. See Section
Supplemental information [
➙
11].
DIP switches for addressing and Modbus line termination
For flexible use and wide range of application the QBM3700.. Modbus air pressure sensor
with I/O extension can be addressed via its DIP switches with controllers other than Climatix
controllers.
Push button for automated on-event addressing together with Climatix controllers
The QBM3700.. can be paired (addressed) easily and fast with Climatix controllers with the
inbuilt push button for on-event addressing. On-event push button addressing is
implemented in Siemens Modbus sensors and devices for digital air handling units (AHU),
providing a consistent, easy and fast commissioning process for manufacturers and
installers.
Zero point factory reset
Resetting to factory settings or zero point is easy.
Siemens as global technology partner
The QBM3700.. is distributed globally via the Siemens sales network. . The sensor is tested
according to the major international standards such as EU and RCM conformity, UL
approbation and EAC, making possible a worldwide field of application. Continuous
innovations and development, as well as sustained quality, logistic processes, spare parts
management and customer support make Siemens a valued technology partner.