Data Sheet for Product

Technical Specification Sheet
Document No. 149-151
April 21, 2021
Siemens Industry, Inc. Page 1 of 2
QMX3 Room Sensors for Siemens DXR
Series Controllers
QMX3.P30/P40/P70 QMX3.P02 QMX3.P34/P44/P74 QMX3.P37
Sensing Only Sensor/Room Sensor with Full Display Room Sensor/Operator
Operator with Display
Description
The QMX3 Series includes sensors, switches and
room operator units exclusively for use with Siemens
DXR Series Controllers. The devices communicate
with the controller using PL-Link protocols. All units
can be installed on a standard 2” × 4” electrical box
with no additional back plates required. No-logo
versions are available for some units.
QMX3.P02
• Temperature sensor.
• Configurable touch keys for light and shade control.
QMX3.P30
• Temperature sensor.
QMX3.P34
• Temperature sensor.
• Backlit LCD display and touch keys for HVAC
control.
• Green Leaf active energy management.
QMX3.P37
• Temperature sensor.
• Backlit LCD display and configurable touch keys for
light and shade control.
• Green Leaf active energy management.
QMX3.P40
• Temperature and humidity sensor
QMX3.P44
• Temperature and humidity sensor
• Backlit LCD display and touch keys for HVAC
control
QMX3.P70
• Temperature, humidity and air quality sensor.
• LED air quality indicator.
QMX3.P74
• Temperature, humidity and CO
2
sensor.
• Backlit LCD HMI and touch keys for HVAC control.
• Green Leaf active energy management.
Specifications*
Temperature
Measuring range
Accuracy
32F to 122F (0C to 50C)
± 0.36°F @ 77°F (0.2°C @ 25°C)
Humidity (P4x and P7x)
Measuring Range
Accuracy
0 to 95% rh
± 4% (20 to 80% rh)
CO
2
(P70 and P74)
Measuring Range
Accuracy < 2K ppm
Temp. dependency
Pressure dependency
Long-term drift
Calibration
400 to 10,000 PPM
± (30 ppm +4% measured CO
2
)
@ 73°F (23°C) and 101.3 kPa
± 2 ppm/°C typical
0.14% of value/hPa
± 20 ppm per year
Not required
Operating voltage range
Power consumption
PL-Link DC 21 to 30V Max.
15 mA at 24 Vdc
Agency Listings
UL 916
FCC Part 15
CSA C22.2 #0 and #205
Color
White or black
Dimensions
5.25” × 3.5” × 0.71”
(133.4 mm × 88.4 mm × 18 mm)
Shipping Weight
7.6 oz. (216 g)
*Accuracies shown are for sensing elements; actual system
accuracy may vary.