Specifications

154 RK0YG302 © Danfoss 05/2007
AKS 11, 12, 21
Temperature sensors
AKS 11, AKS 12, AKS 21
Application
The sensor is recommended for accurate temperature measure-
ments such as e.g. superheating, food safety logs and other im-
portant temperature measurements.
Function
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 Klasse B.
Type Description
Temperature
range
°C
Sensor/
sensor body
Connection/
cable
Enclo-
sure
Time con-
stant in
seconds
Cable
length
m
No. Code no.
AKS 11 *
)
Surface and duct
sensor
-50 to +100
Toppart: PPO (Noryl)
Bottom: Stainless
Steel
PVC cable,
2 x 0.2 mm
2
IP 67
3
1)
10
2)
35
3)
3.5 m 1 084N0003
3.5 m with
AMP plug
110 084N0050
5.5 m 1 084N0005
5.5 m with
AMP plug
70 084N0051
8.5 m 1 084N0008
8.5 m with
AMP plug
50 084N0052
AKS 12
Air temperature
sensor
-40 to 80 18/8 Stainless steel
PVC cable
2 x 0.22 mm
2
IP 67 15
1)
1.5 m
1 084N0036
30 084N0035
3.5 m 30 084N0039
5.5 m 30 084N0038
5.5 m with
AMP plug
30 084N0037
13.5 m 20 084N0034
AKS 21A
**
)
Surface sensor with
clip
-70 to +180
18/8 Stainless steel
Fire-resistive
silicone rub-
ber cable 2 x
0.2 mm
2
IP 67
6
1)
14
2)
35
3)
2.5 m 1 084N2007
5.0 m 1 084N2008
Surface sensor with
screened cable and
clip
-70 to +180 2.0 m 1 084N2024
AKS 21M Multipurpose sensor -70 to +180 2.5 m 1 084N2003
AKS 21W
Immersion sensor
with cable and senor
pocket, Weld version
-70 to +180
Immersion sensor:
18/8 stainless steel
tube
Fire-resistive
silicone rub-
ber cable 2 x
0.2 mm
2
IP 56 18
1)
2.5 m 1 084N2017
Weld nipple:Free
cutting steel
Thread nipple:Free
cutting steel
1
) Agitated liquid.
2
) Clamped to pipe.
3
) Air 4 m/s.
*)
Recommended for measuring superheat
**)
Recommended for hotgas systems
Pt 1000 ohm/0°C