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.
| 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 | PTK 120 | PTK 220 | PTK 320 | 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 |
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