Transcript
1811P01
1
811
QAC... FW-T1G
Outside Sensors
• Passive sensors for acquiring the outside temperature and – to a lesser degree – solar radiation, the wind effect and the temperature of the wall.
• Range of use -40/50…+70 °C / 5…95 % r. F. Use The QAC… outside sensors are for use in heating, ventilation and air conditioning plants as: • Reference sensors for weather-compensated control • Measuring sensors, e.g. for optimization, measured value indication, or for connection to a building automation and control system Type summary Type reference Sensing element Range of use
Time constant
QAC22
LG-Ni 1000
− 50...+ 70 °C
ca. 14 min
QAC32
NTC 575 (linearized)
− 50...+ 70 °C
ca. 12 min
QAC2010
Pt 100
− 50...+ 70 °C
ca. 14 min
QAC2012
Pt 1000
− 50...+ 70 °C
ca. 14 min
QAC2030
NTC10k
− 40...+ 70 °C
ca. 14 min
FW-T1G
T1 (PTC)
− 50...+ 70 °C
ca. 14 min
Ordering and delivery When ordering, please give name and type reference, e.g.: Outside sensor QAC22.
CE1N1811E 20.11.2006
Building Technologies HVAC Products
… … .
Equipment combinations The outside sensors are suited for use with all types of controllers capable of acquiring and handling the sensor’s measured value. Function The outside sensor acquires the outside temperature and − to a lesser degree − solar radiation, the wind effect and the temperature of the wall. The sensing element changes its resistance value as a function of the temperature. Characteristic:
Accuracy:
R [Ω]
LG-Ni 1000
∆ϑ [K] 1400
2.0
1200
1.0
1000
0.0
800
−1.0
600 −50 −40 −30 −20 −10
0
10
ϑ [°C]
20 30 40 50 60 70 80
1811D02
1811D01
−2.0 −50 −40 −30 −20 −10
R [Ω]
NTC 575
ϑ 0
10 20 30 40 50 60 70 80 [°C]
∆ϑ [K] 1811D03
700
3.0
1811D04
Sensing elements
2.0
650
1.0
600
0.0 550
−1.0 500
−2.0
450 −50 −40 −30 −20 −10
0
10
20 30 40 50 60 70 80
ϑ [°C]
−3.0 −50 −40 −30 −20 −10
0
10 20 30 40 50 60 70 80
0
10 20 30 40 50 60 70 80
0
10 20 30 40 50 60 70 80
ϑ [°C]
140
120
∆ϑ [K] 1811D06
1811D05
R [Ω]
Pt 100 (class B)
0.8 0.4 0.0
100
−0.4
80
−0.8 60 −50 −40 −30 −20 −10
0
10
20 30 40 50 60 70
ϑ 80 [°C]
−50 −40 −30 −20 −10
ϑ [°C]
1400
1200
∆ϑ [K] 1811D06
1811D07
R [Ω]
Pt 1000 (class B)
0.8 0.4 0.0
1000
−0.4
800
−0.8 600 −50 −40 −30 −20 −10
0
10
20 30 40 50 60 70
ϑ 80 [°C]
−50 −40 −30 −20 −10
ϑ [°C]
2/4 Building Technologies HVAC Products
Outside sensors QAC...
CE1N1811E 20.11.2006
R [Ω]
∆ϑ [K] 1811D09
1000000
100000
10000
1000 -40 -30 -20 -10
0
10 20 30 40 50 60 70 80
ϑ [°C]
0 10 20 30 40 50 60 70 80
ϑ [°C]
R [Ω] 1819D01
3200 3000
∆ϑ [K] 5.0 4.0
2800
3.0
2600
2.0
2400
1.0
2200
0.0
2000
−1.0 −2.0
1800
−3.0 −4.0
1600 1400 −40 −30 −20 −10
R ϑ ∆ϑ
1819D02
T1 (PTC)
Legend
1.20 1.00 0.80 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 -0.80 -1.00 -1.20 -40 -30 -20 -10
1811D08
NTC 10k
0
10
20 30 40 50 60 70
ϑ 80 [°C]
−5.0 −40 −30 −20 −10
ϑ 0
10 20 30 40 50 60 70 80 [°C]
Resistance in Ohm Temperature in degrees Celsius Temperature differential in Kelvin
Mechanical design The sensor has a plastic housing with a removable cover. The connection terminals can be accessed after removal of the cover. Cable entry is either from the rear (concealed wiring) or from below (surface-run wires). A cable entry gland can be screwed into the bottom of the housing. Engineering notes The permissible cable lengths depend on the type of controller with which the sensor is used. They are specified in the Data Sheet of the relevant controller. Mounting notes Depending on use, the outside sensor must be located as follows: Mounting location
• For control: On the wall of the house or building that has the windows of the occupied rooms, but the sensor must not be exposed to the morning sun. In case of doubt, it should be mounted on the wall facing north or north-west • For optimization: Always on the coldest wall of the house or building (normally the wall facing north). The sensor must never be exposed to the morning sun
Mounting height
Preferably in the middle of the house or building or heating zone, but at least 2.5 m above the ground. The sensor must not be fitted at the following locations: • Above windows, doors, air extracts or other heat sources • Below balconies or the eave of the roof To prevent measuring errors due to air circulation, the cable conduit at the sensor should be sealed. The sensor may not be painted over. Mounting Instructions are printed on the packaging. 3/4
Building Technologies HVAC Products
Outside sensors QAC...
CE1N1811E 20.11.2006
Technical data Functional data
Protective data
Electrical connections
Environmental conditions
Materials and colors
Weight
Range of use
refer to "Type summary"
Sensing element
refer to "Type summary"
Time constant
refer to "Type summary"
Accuracy
refer to "Function"
Type of measurement and output
passive
Degree of protection of housing
IP 54 to IEC 529
Safety class
III to EN 60 730
Screw terminals for
2 x 1.5 mm or 1 x 2.5 mm
2
2
Cable entry for
cable gland (e.g. M 16 x 1.5)
Perm. cable length
refer to "Engineering notes"
Operation Climatic conditions Temperature Humidity
− 40...+ 70 °C 0 . . . 1 0 0 % r. h.
Storage / transport to Climatic conditions Temperature Humidity Mechanical conditions
IEC 721-3-2 class 2K3 − 25...+ 65 °C < 95 % r. h. class 2M2
Base
plastic (ASA)
. .
Cover
plastic (ASA), RAL9003
Packaging
cardboard
Incl. packaging
approx. 0.093 kg
B
M
1811G01
Internal diagram
The internal diagram is identical for all types of outside sensors covered by this Data Sheet. The connecting wires are interchangeable.
Dimensions
6
4
20,7
92
5,5
3
5,5
. .
Ø 16
50 25
24,5
49,5
1811M03
80
Drilling plan Dimension in mm
4/4
©2004 - 2006Siemens Switzerland Ltd
Building Technologies HVAC Products
Outside sensors QAC...
Subject to alteration CE1N1811E 20.11.2006