Temperature sensor - Metal connection head

Temperature sensor - Metal connection head

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GNK120R Datasheet | Temperature sensor - Metal connection head

Product features Temperature sensor - Metal connection head

DESCRIPTION AND APPLICATION

These resistance temperature sensors are designed to measure the contact temperature of liquid or gaseous substances. The combination temperature sensor and central support is suitable for temperature measurements in air conditioning ducts. The temperature sensor and thermowell combination is suitable for temperature measurements in tubes.

La sensor variant with welded thread is ideal for the direct measurement of fluids in ducts. The standard operating temperature range is between -30°C and 200°C. By using a sensor with a longer stem, the upper permissible temperature limit can be extended up to 250°C.

Temperature sensors can be used for any compatible control system with the sensing element output signals or the output signals shown in the sensing element type table.

Temperature sensors are designed to operate in a chemically non-aggressive environment.

ACCESSORIES

central metal support K120
stainless steel thermowell JS 130
screw with collar or cutting rings - if different immersion lengths of the temperature sensor are set

DECLARATION, CERTIFICATION, CALIBRATION

The manufacturer provides an EU declaration of conformity.
Calibration - The final metrological control - comparison with standards or working instruments - is carried out for all products. The continuity of standards and work measurement instruments is ensured within the meaning of article 5 of Law No. 505/1990 on metrology. The manufacturer offers the possibility of supplying the calibrated sensors.

Features
Cable schematics
Dimensional draft
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Sensor type	NK-120	NK-121	NK-122	320 NK	NK-321
Sensitive element type	Nor 1000/5000	Nor 1000/6180	Ni 891	Nor 10000/5000	Nor 10000/6180
Measuring range	-30 to 200 ° C (ambient temperature of the connection head -30 to 100 ° C)
Maximum continuous current	1 mA	1 mA	1 mA	0.3 mA	0.3 mA

Sensor type	NK-123	PTK120	PTK220	PTK320	HK-120
Sensitive element type	T1 = Ni 2226	Point 100/3850	Point 500/3850	Point 1000/3850	20 kΩ NTC thermistor
Measuring range	-30 to 150 ° C	- 50 to 200 ° C (ambient temperature of the connection head -30 to 100 ° C)			-30 to 150 ° C
Maximum continuous current	0.7 mA	3 mA	1.5 mA	1 mA	10 mW *)

*) maximum power consumption

Sensor type	NK-520	Footnotes
Sensitive element type	Point 1000/3850
Output signal	4 to 20 mA
Measuring ranges	-50 to 50 ° C -30 to 60 ° C 0 to 35 ° C 0 to 100 ° C 0 to 150 ° C 0 to 200 ° C 0 to 250 ° C	ambient temperature around the connection head -30 to 70 ° C
Measurement error	<0.6% of range	not less than 0.5 ° C
Power supply (U)	11 to 30 V DC	recommended value 24 V DC
Load resistance	150 Ω for 12 VDC power supply 700 Ω for 24 VDC power supply
Output signal breaking the sensitive element	> 24 mA
Output signal - short circuit of the detection element	<3.5 mA

OTHER PARAMETERS
Precision class	Elements sensitive to Ni: class B, Δt = ± (0,4 + 0,007t), for t ≥ 0; Δt = ± (0,4 + 0,028 \| t \|), for t ≤ 0 in ° C; Elements sensitive to pt: class B according to EN 60751, Δt = ± (0,3 + 0,005 \| t \|) in ° C NTC 20 kΩ: ± 1 ° C for the range from 0 to 70 ° C
Sensor connection	according to the wiring diagram
Standard length of rod L1	70, 120, 180, 240, 300, 360, 420 mm
Response time	τ _0,5 <9 s (in white water at 0,4 ms ^-1 )
Recommended wire section - sensors with grommet	0,35 to 1,5 mm ²
Isolation resistance	> 200 MOhm at 500 V DC, 25 ° ± 3 ° C; humidity <85%
Ingress protection	IP 54 according to EN 60529
Material of the stem	DIN 1.4301 stainless steel
Connection head type	LIMATHERM MA
Connection head material	aluminum alloy
operating conditions	ambient temperature: -30 to 100 ° C; -30 to 70 ° C with converter relative humidity: max. 100% (at room temperature 25 ° C) atmospheric pressure: 70 to 107 kPa
Weight	about 0,15 kg