TEMPERATURE SENSORS WITH A STEM AND DISPLAY

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CONFIGURATOR

CONFIGURE AND REQUEST

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These resistance temperature sensors with display and stem are designed for contact temperature measurements of liquid or gaseous substances. The temperature sensor-central holder combination is suitable for temperature measurements in air condition ducts. The temperature sensor-thermowell combination is suitable for temperature measurements in tubing. The temperature sensing element is located in a metal stem of length of 70 – 420 mm. The plastic head of the temperature sensor with display is equipped with a cable grommet or a connector; the measured temperature is indicated on the 4-digit display located under the transparent cap of the head. The temperature sensors with display can be used for any control systems compatible with output signals listed in the table of technical parameters.

The maximum temperature range for current loop setting of the temperature sensors with display is -50 to 150 °C. Within this range, the required operating temperature ranges may be programmed, while the minimum difference between the lower and upper limit of the temperature range is 10 °C. The maximum temperature around the head is -30 to 70 °C and must not be exceeded even for a brief period. The temperature sensors with display meet ingress protection IP 65 according to EN 60529. The temperature sensors with display are easy to be installed thanks to the unique design of "S-head" made by SENSIT s.r.o.

The sensors are designed to be operated in a chemically non-aggressive environment, the use must be chosen with regard to temperature resistance of the head and the metal cases.

ACCESSORIES

central plastic holder (part of the packing)
stainless steel thermowell JS 130
metal central holder K120
For the version with connector: led-in connector CONEC 43-00092
connection cable with the straight-type RKT connector or with the rectangular-type RKWT connector
screw with collet or cutting rings – if different lengths of stem immersion of the temperature sensor are set

DECLARATION, CERTIFICATION, CALIBRATION

Manufacturer provides EU Declaration of Conformity.
Calibration – The final metrological inspection – comparison with standards or working instruments – is carried out for all the products. Continuity of the standards and working measuring instruments is ensured within the meaning of the Section 5 of Act no.505/1990 on metrology. The manufacturer offers a possibility to supply the sensors calibrated in SENSIT s.r.o.’s laboratory (according to requirements of the EN ISO/IEC 17025 standard) or in an Accredited laboratory.

Technické parametry

Sensor type (K - with a connector)	NSD 520 NSD 520K	NSD 720 NSD 720K
Output signal	4 to 20 mA	0 to 10 V
Type of sensing element	Pt 1000/3850, accuracy class B (± 0.3 + 0.005 x \| t \| ) in °C
Measuring range	adjustable
Max. measuring range	- 50 to 150 °C
Measuring error	0.8 % from the range, at least 0.5 °C
Display screen	4-digit, LED, character dimension 7.62 × 4.22 mm
Power supply (U)	15 to 30 V DC
Nominal voltage U_n	24 V
Load resistance	Rz ma 250 Ω	Rz min 10 kΩ
Current/voltage when the sensor is interrupted	> 24 mA	> 12 V
Current/voltage when the sensor is short-circuited	< 3 mA	~ 0 V
Material of the head	POLYAMIDE
Dimension of the head	70 x 63 x 34 mm
Wire cross-section	0.35 to 1.5 mm²
Ingress protection	IP 65 in accordance with EN 60529
Cable connection	Through the grommet M 16 × 1.5 / through the connector LUMBERG M12
Ambient temperature around the head	-30 to 70 °C
Electric strength	500 V / 50 Hz in accordance with EN 60730-1

Other parameters
Length of the stem	70, 120, 180, 240, 300, 360 and 420 mm
Diameter of the stem	6 ^+0,2 mm
Material of the stem	stainless steel DIN 1.4301
Insulation resistance	> 200 MΩ at 500 V DC, 25 ± 3 °C, relative humidity < 85 %
Maximum measurement range	-50 to 150 °C by using a sensor with a longer stem of 60 mm, the upper limit of allowable temperature can be extended up to 250 °C
Weight	0.13 kg for length 120 mm

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.