MAKING MODERN LIVING POSSIBLE
Data sheet
Temperature sensor NTC 10 Kohm
Type EKS 221
NTC temperature sensor for temperature
measurements in the following areas:
ƒƒ Refrigeration
ƒƒ Air conditioning
ƒƒ Heating
The sensor characteristic matches to:
ƒƒ OPTYMA room controllers
ƒƒ MCX unit controllers
The sensor is available in two versions:
ƒƒ Sensor house in thermo plastic rubber and
flat cable
ƒƒ Sensor house in steel and with round cable
Features
yy Nominal resistance of 10000 ohm at 25 °C
yy Available with cable lengths up to 8.5 m
yy Two main versions are available:
yy Version with sensor housing in thermoplastic
rubber and flat cable (2 x 0.25 mm2) for
measuring range -50 – +120 °C and IPclass
IP67.
yy Version with sensor housing in AISI 304
stainless steel and round cable (2 x 0.25 mm2)
for measuring range -50 – +110 °C and IPclass
IP68.
© Danfoss A/S (IA-MS/IM) 2015-04
IC.PD.P30.W1.02 / 520B6766
1
Data sheet
Technical data
Temperature sensor NTC 10 Kohm type EKS 221
Sensor house
Thermoplastic rubber
Steel AISI 304
Temperature range
-50 – 120 °C
-50 – 110 °C
Cable material
Thermoplastic rubber, flat, 2 × 0.25 mm2
Thermoplastic rubber, round, 2 × 0.25 mm2
Wire ends
Tin plated
Nipples
Time constant, water 2 m/s
10 seconds
10 seconds
IP Class
IP67
IP68
Nominal resistance
10000 ohm at 25 °C
Tolerance
+/- 1%
Beta value
3435 at 25/85 °C
Tolerance at beta value
+/- 1%
Sensor house in thermoplastic rubber
Sensor house in steel AISI 304
Ordering
Type
EKS 221
Sensor element
NTC
10000 ohm / 25 °C
Sensor house
Thermo plastic
rubber
Steel AISI 304
© Danfoss A/S (IA-MS/IM) 2015-04
IC.PD.P30.W1.02 / 520B6766
R_nom
Ohm
Temp.
°C
Temp.
°F
595
757
972
1265
1667
2228
3020
4160
5827
8313
10000
12091
17958
27278
42450
67801
111364
188500
120
110
100
90
80
70
60
50
40
30
25
20
10
0
-10
-20
-30
-40
248
230
212
194
176
158
140
122
104
86
77
68
50
32
14
-4
-22
-40
Cable, L=
3.5 m
8.5 m
1.5 m
Number
Code no.
150
1
50
1
150
084N3206
084N3210
084N3208
084N3209
084N3200
2