NS 150A, NS 151A, NS 152A, NS 350A, NS 351A – brass -50 °C to 130 °C

These resistance-type sensors are intended for contact surface temperature measurement. the sensors, which are available including the fastening strap are suitable for temperature measurements on piping. The sensor dimensions make it possible to place the sensor even under the pipe insulation. The standard operating temperature range is -50 to 130 °C. The sensing element is constructed to be isolated from the ambient influence. The sensors can be utilised for any control systems that are compatible with sensing element output signals or output signals quoted in the table of sensing element types. The sensors are designed to be operated in a chemically non-aggressive environment.


Sensor type NS 150A NS 151A NS 152A NS 350A NS 351A
Measuring range -50 to 130 °C
Type of sensing element* Ni 1000/5000 Ni 1000/6180 Ni 891 Ni 10000/5000 Ni 10000/6180
Maximum measuring DC current 1 mA 1 mA 1 mA 0.3 mA 0.3 mA
Accuracy class ** Ni sensing elements: B class, Δt = ± (0.4 + 0.007t), for t ≥ 0; Δt = ± (0.4 + 0.028|t|), for t ≤ 0 in °C
Pt sensing elements: B according to EN 60751, Δt = ± (0.3 + 0.005|t|) in °C
NTC 20 kΩ: ± 1 °C for the range 0 to 70 °C
Sensor connection according to the wiring diagram
Time response sensor type S150A τ0.5 ≤ 10 s, τ0.9 ≤ 45 s (on the smooth surface without paste)
Insulation resistance > 200 MΩ at 500 V DC, 25 ± 3 °C; humidity < 85 %
Ingress protection IP 65 in accordance with EN 60529
Material of the case brass
Lead-in cable shielded silicone 2 x 0.22 mm2
shielded silicone 4 x 0.15 mm2
Standard length of the cable 2, 5, 10 m
Material of the protection case POLYAMIDE type S150A
Standard length of the strap 40 cm
Minimum diameter of a pipe 20 mm
Operating conditions ambient temperature: -50 to 130 °C
relative humidity: max. 100 % (at the ambient temperature 25 °C)
atmospheric pressure: 70 to 107 kPa
Weight approximately 0.15 kg

**) Regulated by immersing the sensor in a liquid, an error in method is not considered - the influence of the ambient temperature and environment, uneven surface, etc. In terms of two connections, the impact of the resistance of the lead wire mus be added. In a temperature of 20 °C, the impact of the lead resistance 0,4 °C/1 m.
Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.

Dimensional Draft

Wiring Diagram

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