PTS 44x and PTS 46x up to 400 °C with IP 68

These resistance-type sensors are intended for contact measurements of temperatures up to 400 °C. Temperature sensors, in combination with a central holder or thermowell, can be used to measure the temperature in various applications of an industrial environment. The sensor variant with welded thread is ideal for direct measuring of mediums in ducts. Sensors meet level of protection IP 68 in accordance with EN 60529. The standard operating temperature range is -50 to 400 °C. 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.

Specification

Sensor type with smooth stem PTS 441 PTS 443 PTS 445
Sensor type with welded-on screwed joint PTS 461 PTS 463 PTS 465
Type of sensing element Pt 100 Pt 500 Pt 1000
Measuring range B class -50 to 400 °C
Maximum measuring DC current 3 mA 1.5 mA 1 mA

**)According to the customer‘s requirement, it is possible to provide a customized measuring range from -40 to 150 °C; the minimum span of the range must be 35 °C (e.g. -20 to 15 °C; -30 to 80 °C)

Sensor type with smooth stem PTS 451 Note
Sensor type with welded thread PTS 471
Type of sensing element Pt 1000/3850
Output signal 4 to 20 mA
Measuring ranges -50 to 50 °C
0 to 100 °C
0 to 150 °C
0 to 200 °C
0 to 400 °C
ambient temperature around the connection head -30 to 70 °C
Power supply (U) 11 to 30 VDC recommended value 24 VDC
Output signal - sensing elements break > 25 mA
Output signal - sensing element short circuit < 3.5 mA
Other parameters
Accuracy class B class according to EN 60 751, Δt = ± (0,3 + 0,005|t|) in °C
Measuring error (PTS 451, PTS 471) < 0.6 % of the measuring range, minimum 0.5 °C
Sensor connection according to wiring diagram
Standard length of stem L1 50, 100, 160, 220, 280, 400 mm
Nominal pressure of the stem PN 63 (with a thread)
Time response τ0,5 < 9 s ( in flowing water at 0,4 m.s-1)
Recommended wire cross section 0.35 to 1.5 mm2
Thread types for PTS 461, PTS 463, PTS 465, PTS 471 G 1/2"; M 20 x 1,5; M 27 x 2
Insulation resistance > 200 MΩ at 500 VDC, 25 °C ± 3 °C; humidity < 85 %
Ingress protection IP 68 in accordance with EN 60 529, 5 bar/30 min
Material of the stem stainless steel DIN 1.4301
Material of the connection head aluminium LIMATHERM NAA
Operating conditions
ambient temperature:
-30 °C to 100 °C; -30 °C to 70°C with converter
relative humidity:
max. 100 % (at the ambient temperature 25 °C)
atmospheric pressure:
70 to 107 kPa
Weight 0.25 kg

* programming software is free

MAXIMUM FLOW SPEED OF THE MEASURED MEDIUM - AIR AND WATER VAPOUR / WATER [m.s-1]
Length of the thermowell / stem >60 to 100 mm >100 to 160 mm > 160 to 220 mm > 220 to 400 mm
Values for the version with thread 15 / 1.5 8.0 / 1.0 2.5 / 0.6 0.6 / 0.3

Dimensional Draft

Wiring Diagram

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