■ For application in the air conditioning technology
■ Protection class IP20 to IP65
■ Connection: in 2-wire, 3-wire or 4-wire circuit
■ Available with 4 ... 20 mA or 0 ... 10 V transmitter
Indoor, outdoor and channel RTD temperature probes for air conditioning technology are mainly
used for temperature measurement in rooms, in air channels and outdoors.
Various device versions made of plastic with different protection classes are available for the
respective measuring task.
The measuring insert is normally fitted with a Pt 100 temperature probe as per DIN EN 60751,
Class B in 2-wire circuit, versions with Pt500, Pt1000 or Ni1000 can also be supplied. From the
connection terminals, wiring in 3-wire and 4-wire circuit is also possible.
A transmitter can be optionally integrated.
Data sheet 90.2520 (90.2523)Page 1/7
Technical Data
Connection casePlastic case PC (basic type 902520/11 material PP), IP20 to IP65,
basic type 902524/25 protection class IP54 and IP65
SheathStainless steel 1.4571; Ø 5.4 mm, Ø 6 mm
Measuring insertPt100 temperature probe, DIN EN 60751, class B, 2-wire circuit
TransmitterAnalog transmitters, output signal 4 ... 20 mA or 0 ... 10 V
Pt1000 temperature probe, DIN EN 60751, class B, 2-wire circuit,
For further probes, refer to the order details
Measuring inputPt100 (DIN EN 60751)
Probe current≤ 0.5 mA
Measuring rangePermanent measurement due to analog signal path
Measuring circuit monitoring
Underrangedropping to ≤ 3.6 mA0 V
Overrangeincreasing to ÷ 22 mA ... < 28 mA (typical
24 mA)
increasing to ÷ 11 V... < 14 V
(typical 12 V)
Probe short-circuit≤ 3.6 mA0 V
Probe and wire break÷ 22 mA ... < 28 mA (typical 24 mA)÷ 11 V... < 14 V (typical 12 V)
Output
Output signalload-independent direct current 4 ... 20 mADirect current 0 ... 10 V
Transmission behaviortemperature linear
Transmission accuracy≤ ±0.1%≤ ±0.2%
Damping of the residual ripple
of a voltage supply of 24 V,
amplitude 10 V/50 Hz,
burden 470 Ω/Load 10MΩ
Order details: Indoor and outdoor RTD temperature probe
(1) Basic type
902520/10Indoor RTD temperature probe
Protection class IP20
Data sheet 90.2520 (90.2523)Page 5/7
902520/11Indoor and outdoor RTD temperature probe
Protection class IP54
902520/12Indoor and outdoor RTD temperature probe
Protection class IP65
902520/13Indoor and outdoor RTD temperature probe
with stepped sheath
Protection class IP65
902520/15Outdoor RTD temperature probe
Protection class IP65
(2) Operating temperature in °C
x361-50 ... +90 °C
x x568-30 ... +60 °C (measuring range only in connection with extra code 330 or 333)
xx x572-30 ... +80 °C (standard)
x635-20 ... +80 °C (standard)
xx x8030 ... 40 °C (measuring range only in connection with extra code 330 or 333)
xx x8070 ... 60 °C (measuring range only in connection with extra code 330 or 333)
(3) Measuring insert
xx10011x Pt 100 in 3-wire-circuit
xxxxx10031x Pt 100 in 2-wire circuit
xxxxx10051x Pt1000 in 2-wire circuit
x xx x10091x Ni1000 in 2-wire circuit
x16191x KTY 81-110
x17281x NTC 1 kOhm
x20012x Pt100 in 3-wire-circuit
x x x20032x Pt100 in 2-wire circuit
(4) Tolerance class as per DIN EN 60 751
x0Technical data Ni/NTC/KTY
xxxxx1Class B (standard)
xx x2Class A (not for basic type 902520/10 in connection with transmitter)
xx x3Class AA (1/3 DIN B) (not for basic type 902520/10 in connection with transmitter)
(5) Extra codes
xxxxx000None
xx x330Transmitter analog, output 4 ... 20 mA
xx x333Transmitter analog, output 0 ... 10 V
2
(in connection with 1x Pt100)
2
(in connection with 1x Pt100)
x903Cable screw-connection (IP65)
(1)(2)(3)(4)(5)
Order code---/
Order example902520/10-572-1001-1/000
1
List extra codes in sequence, separated by commas.
x380-50 ... +200 °C (standard)
x568-30 ... +60 °C (measuring range only in connection with extra code 330 or 333)
x572-30 ... +80 °C (standard)
x8070 ... 60 °C (measuring range only in connection with extra code 330 or 333)
(3) Measuring insert
x x10031x Pt 100 in 2-wire circuit
x x10051x Pt1000 in 2-wire circuit
x x10091x Ni1000 in 2-wire circuit
x20032x Pt100 in 2-wire circuit
(4) Tolerance class as per DIN EN 60 751
xx1Class B (standard)
xx2Class A
x3Class AA (1/3 DIN B)
(5) Sheath diameter D in mm
x x6Ø 6 mm (for basic type 902524/20 Ø 6 mm stepped down to Ø 3.3 mm)
(6) Nominal length NL in mm (NL 50 ... 500)
x x100100 mm
x150150 mm
x200200 mm
x...Please specify in plain text (50 mm steps)
(7) Process connection
x x000None
x x252Sheath screw-connection G 1/4
x x254Sheath screw-connection G 1/2
x x662Stop flange Ø 6 mm
(8) Extra codes
x x000None
x310Sheath Ø 6 mm stepped down to Ø 3.3 mm
x330Transmitter analog, output 4 ... 20 mA
x333Transmitter analog, output 0 ... 10 V
2
(in connection with 1x Pt100)
2
(in connection with 1x Pt100)
x404Protection class IP65
(1)(2)(3)(4)(5)(6)(7)(8)
Order code------/ ,...
Order example902524/20-572-1003-1-6-100-252/000
1
List extra codes in sequence, separated by commas.