Data Sheet for Product

2
Siemens
A6V12297472_en--_a
Smart Infrastructure
2021-03-25
Use
The sensor is used in ventilation and air conditioning plants where high accuracy and short
response times for measuring temperature and relative humidity are required. The measur-
ing range covers the entire humidity range of 0…100 %.
● Storage and production facilities in the paper, textile, pharmaceutical, food, chemical and
electronics industry, and so on.
● Laboratories
● Hospitals
● Computer and EDP centers
● Indoor swimming pools
● Greenhouses
● With the AQF3100 accessory for outdoor use
The sensor is used as a
● control sensor in the supply or exhaust air
● limit sensor for maximum limitation of supply air humidity after a steam humidifier
● limit sensor, for example, for measured value indication or for connection to a building
automation and control system
Technical design
Cable entry is made via the screwed cable gland M16 supplied with the sensor, which can
be screwed into the housing.
If the sensor is used outdoors, the opening must be closed off and the prepared hole on the
opposite side of the base must be knocked out.
The outdoor mounting kit consists of:
● 1 wall mounting bracket complete with radiation shield
● 4 Phillips-head screws K35 × 12
● 1 grommet M 16 × 1.5 with O-ring and nut M 16 × 1.5 for closing off the sensor’s cable
entry hole if not required
Type summary
Product number
SSN NO.
Temperature
measuring
range
Humidity meas-
uring range
Operating volt-
age
Output signal
QFA3150/MO
S55720-S535
-40…70 ℃
0...100 %
AC 24 V ±20 %/
DC 13.5...35 V
Modbus RTU
Ordering and delivery
When ordering, specify name and product number, e.g.: Room sensor QFA3150/MO. The
outdoor mounting kit AQF3100 listed under Accessories must be ordered as a separate item.
Accessories (not included in standard delivery)
Name
Type reference
Outdoor mounting kit (incl. radiation shield)
AQF3100
Examples
Outdoor mounting
kit AQF3100