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Technical Information

Slot Resistance Thermometer NWT-ST / ZS

[1] Measuring resistors 1 or 2 measuring resistors
Temperature sensor measuring wire with bifilar winding
[2] Rated resistance at 0° 100 Ω
Resistance material platinum (Pt) optionally: nickel (Ni), copper (Cu)
TEL approx. 2/3 of sensor length
Recommended measuring current 0.3mA … 1.0mA
Max. Voltage 60V
Sensor insulation fine mica, resin impregnated glass fibre coating
[3] Tolerance class according to EN 60751
[4] Mode of connection 2- // 3- // 4- conductor connection
[5] Dimensions
Thickness 2.0 mm – 8.0 mm ± 0.3 mm
Width 7.0 mm – 20 mm ± 0.3 mm
Length 75 mm – 500 mm ± 5 mm
[6] Connection line
E1 single litz wires
A1 shielded single litz wires
Sx shrinkable tubing with x single litz wires
Gx shielded shrinkable tubing with x single litz wires
FSLx flat band shrinkable tubing with x single litz wires
Insulation PTFE
Cross section ≥AWG30
Shield as requested by customer
Cable end bare // tinned // wire end sheathes
[7] Cable length specification of connection line / ground wire length in mm
Color code according to EN 60751 // as requested by customer
[8] Dielectric strength max. 5 kV / AC 50 Hz / 1 min.
[9] Measuring range -40°C ... +180°C
[10] Ex-approval
IECEx Ex eb IIC
Ex ta IIIC
Ex ia IIC Gb
Ex ia IIIC Gb
ATEX II 2G Ex e IIC Gb
II 2D Ex ta IIIC Da
II 2G Ex ia IIC Gb
II 2D Ex ia IIIC Db
TR Ex ia IIC U
Ex e II U
Ex ia IIIC Db U
Ex tb IIIC Db U

Tolerance class

Unit Class AA Class A Class B Class C Class D
[Ω] ±0.04 Ω / 0°C ±0.06 Ω / 0°C ±0.12 Ω / 0°C ±0.30 Ω / 0°C ±0.50 Ω / 0°C
[°C] ±0.10°C / 0°C ±0.15°C / 0°C ±0.30°C / 0°C ±0.80°C / 0°C ±1.30°C / 0°C

Example for order code / Product description

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10]
NWT-ST/ZS 1 Pt100 A 3 2x10x200 E1 2000 2.5 180
NWT-ST/ZS 2 Pt100 B 2 3x10x300 S4 5000 2 200

 

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