ELHART TRE.H12 series temperature sensors are designed for measuring the temperature of liquid, granular, and gaseous media non-aggressive to the sensor materials. They are equipped with Pt100/Pt1000 platinum sensing elements of accuracy classes A or B according to GOST 6651, with an upper measurement limit up to +300 °C (Class A) or +500 °C (Class B).
Featuring a quick-release DIN 43650 connector, a sliding fitting with M20×1.5 or G1/2" thread, and an extended mounting part (120 mm from the stop to the head). Process connection is performed via a PA.10 thermowell or directly — using WA.02 weld-on bosses with a stop.
| Parameter | Value |
|---|---|
| Sensor type * (depends on the modification) | Pt100 (α=0.00385 °C -1) Pt1000 (α=0.00385 °C -1) |
| Temperature measurement range | -30…+300 °C (Class А) -50…+500 °C (Class В) |
| Maximum ambient temperature | +100 °С |
| Accuracy class * (depends on the modification) | Class A: ±(0.15+0.002 ·|t|***) °C Class В: ±(0.30+0.005 ·|t|***) °C |
| Thermal response time (63.2%) * | max 30 s |
| Minimum immersion length | 60 mm |
| Operating pressure | max 2.5 MPa |
| Electrical insulation resistance at 25 ±10 °С | min 100 MΩ |
| Measuring current * | max 1 mA (Pt100) max 0.3 mA (Pt1000) |
| Conductor cross-section | max 1.5 mm² |
| Ingress Protection ** | IP65 |
| Process connection (depends on the modification) | male thread M20×1.5, G1/2″ |
| Immersion probe material | AISI 321 (12Х18Н10T) |
| Relative air humidity | max 90% |
| Mean time between failures (MTBF) | min 35,000 hours |
| Service life | 10 years |
* according to GOST 6651.
** according to GOST 14254.
*** where |t| is the modulus of the temperature value in °C.
