Temperature sensors
Pt 1000 ohm / 0°C
AKS 11, AKS 12, AKS 21
Application
These sensors are recommended for accurate temperature meas-urement in applications such as superheating, food safety logs, and other important temperature measurement applications.Functional description
The sensor unit consists of a platinum element the resistance value of which changes proportionally with the temperature. Pt 1000 ohm sensor (1000 ohm at 0°C).
The sensors are adjusted and meet the tolerance requirements of EN 60751 Class B.
Temperature
Sensor/
range
sensor body
°C
Connection/cable
Enclo-sure
Time con-stant [s]
Cable length m3.5 m
Surface and duct sensor
Top: PPO (Noryl) Bottom: stainless steel
PVC cable, 2 x 0.2 mm2
3 1)10 2)35 3)
3.5 m + AMP5.5 m5.5 m + AMP8.5 m8.5 m + AMP1.5 m
AKS 12
Air temperature sensor
-40 to 80
18/8 stainless steel
PVC cable 2 x 0.22 mm2
IP 67
15 1)
3.5 m5.5 m5.5 m + AMP 13.5 m
Surface sensor with clip
Surface sensor with shielded cable and clip
Multipurpose sensor
-70 to +180
18/8 stainless steel
Fire-resistant silicone
rubber cable, 2 x 0.2 mm2
IP 67
6 1) 14 2) 35 3)
2.5 m5.0 m2.0 m2.5 m
Immersion sensor, 18/8 stainless steel tube
-70 to +180
Weld nipple: free cutting steelThread nipple: free cutting steel
TypeDescriptionQty1110170150130303030201111
Code084N0003084N0050084N0005084N0051084N0008084N0052084N0036084N0035084N0039084N0038084N0037084N0034084N2007084N2008084N2024084N2003
AKS 11 *)-50 to +100IP 67
AKS 21A **)
-70 to +180-70 to +180
AKS 21M
AKS 21W
Immersion sensor with cable and senor pocket, welded versionFire-resistant silicone rub-ber cable, 2 x 0.2 mm2
IP 5618 1)2.5 m1084N2017
*)
**)
Recommended for measuring superheat Recommended for hot gas systems
) Agitated liquid. ) Clamped to pipe. 3
) Air 4 m/s.
12
194 RK0YG402 © Danfoss 12/2009 AKS 11, 12, 21
AKS 11, AKS 12, AKS 21
°C 01 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1718 19 20 21 2223 24 25 2627 28 2930 3132 3334 35 36 37 38 39 40 41 424344 45 47 48 4950
ohm 1000.01003.91007.81011.71015.61019.5 1023.41027.31031.21035.11039.0 1042.91046.81050.71054.61058.5 1062.41066.3 1070.21074.01077.91081.81085.7 10.61093.51097.3 1101.21105.11109.01112.81167.7 1120.61124.51128.3 1132.21136.1 1139.91143.81147.71151.51155.4 1159.3 1163.1 1167.0 1170.8 1174.7 1178.51182.4 1186.3 1190.11194.0
°C −1−2−3−4−5−6−7 −8−9−10 −11−12−13 −14−15 −16−17−18−19−20 −21−22−23−24−25 −26−27−28−29 −30 −31−32−33−34−35 −36−37−38−39−40 −41−42−43 −44−45 −46 −47 −48 −49 −50
ohm 1000.0 996.1992.2988.3984.4 980.4 976.5 972.6968.79.60.9 956.9953.0949.1945.2941.2 937.3933.4929.5925.5921.6 917.7913.7909.05.9901.9 8.0 4.00.1886.2882.2 878.3 874.3870.4866.4862.5 858.5854.6850.6 846.7842.7 838.8 835.0 830.8 826.9 822.9 818.9 815.0 811.0 807.0 803.1
approx. 3.9 ohm/K
AKS 11
AKS 12
AKS 21A, AKS 21M
AKS 21W
AKS 21W
welded version
Pocket in welded version for AKS 21W
The tolerance of a Pt1000 sensor is less than ±(0.3 + 0.005 T).
This translates into a temperature error of less than 0.5 degree for refrigeration control.
Sensors with AMP plug:
connector type AMP ital mod 2, housing 280 358,crimp contacts type 280 708-2AKS 11, 12, 21
RK0YG402 © Danfoss 12/2009
195
